Document 70Myq09MXZaV5DMwNjmX16bE

DU PODT WEDS THAT STAY RED mm Jl 1V7 now so easy with color enriching DU PONT N'7'P0LISH Faster, easier, because color-enriching Du Pont No. "7" Polish pulls grime away from paint. As you spread it on, special ingredients loosen every speck of dirt, grime, traffic film, make cleaning easier. Then the drying polish lifts up the grime so you can whisk it off easier! Exclusive in Du Pont No. "7" Polish. At service stations and auto supply stores. Only $1.50. Weathered finish at left given u gloHs reading of only 25. After use of Du Pont No. "7" Polish, it reads 91--equal to new-car color brilliance! CPU> REG. U. S. PAT. OFF. BETTER THINGS FOR BETTER LIVING . . . THROUGH CHEMISTRY AUGUST * SEPT6MB1R ISS TUT COVTiR , . . is a prom) response to ;. poem that. ap peared a few year* ago in U-H-H '/'rends, a publication of the Color & Chemicals Di vision. of Inter chemical Corp. The rhyme 'voices the senti ments of users exasperated by a long history of rod pigment failures. It says in part; (`miniitim reds h it unite unresn-tive. Iml some thin/: Ike shmie no1 too oftract1 ice: Loir cost and blip,hi rotor In;nr made Pirn; hi,'!, hut its hteetiinp is like the prnveiiiiul pig: 'I'oliiidine's better am in the sun, iuti even it wili begin to run; May there conn- a day, before ur're dead, ivheii someone in rents the ideal red. Thai day lias arrived, reports the article lx-g timing on the next page, ll inlroduiv* a now line of red arid violet pigments that promhe hi ho useful (as tile cover shows'! in paints, plashes and printing inks, as well as in many other produces. off. we sh p you less iron ore When your producers of petroleum, copper, zinc and lead seek shelter, wo feel the pinch...to put it mildly." Lank also noted Hull re I alio its between ihe two countries would lie smoother "if wo gave as much heed !o our difference* as Wi de (o our similarities. Canada is not the same as the U. 8.. even ;,s you are not ihe .same as the man next, door." SHE'S INVITING Pictured below is Carol Christensen, a New York model whose task it has been this summer l > visit a doyen U. S and Canadian cities, urging the citizenry to come to New York on vacation. Her ofticial title: Queen of ihe 1P58 New 'York Summer Festival. Kadi Hem in her wartirobe- including garments from Li outer wear manufacturer*, .-six dvt-ss houses and four lingerie maker* contains one or more Du Pont fibers, in fid* picture she's wearing a printed voile of "Dacron" poly ester fiber anil col ton. SjK-alung far ourselves. well be happy to accept the (.Queen's in vital ion. VIVE EA DIFFERENCE Herbert H. Lank, the president, of l)u Foul Compaiiv of Canada fltsihii Limited, denied that a wave of unii-Amer ioan feeling is sweeping Canada. He desorilxid the true sentiment as '`1*110 of mmml ing llat ional cunsciousness. t '.mauiutt nationalism or just-plain |>r>-Cana.diai t ism." Speaking at the National Association of ('redit Men's convention in Detroit, I ,,-ml; acknowledged Cimatla's indebted ness 1,0 L. S. investment capital bui stressed the vulnerability of Canadians to economic lluclthilions in the l1. H. "When your steel arid automobile indusl ri<>s ,--.titlc 2 Kills tliat- stay rei; i Tlic* iaboralory that salt built. G Spi-eiI will get you nowhere b 'Hie things fhey do with g)ass et inforeeil plast ic lb P.-lka dot |-nirii I t "! enjoyed your cormieri-inls*'' L!. Ttw* met a! that slept- for a hun dred years Id The pro Is cotnc to watch IS Like Hi save on drafting tir-u-? It) Somi-ihing. new in (be Old Dominion 21 Wind's new in PYA paints? Nylon, hard ware for hard ivom :'(! Over the giuistnitIt's iltoaldcr :.!b tine i>rivcli four barrols :.*h Kecipe lor trouble free heating !(i Kttig job for "Teflon" d 1 In lab ware, i> :>! Curtain C':til ft:r coatee 'itlnncs Radioisotopes- sharp pair of eves 1-8 Till*' itickk-s a tie tv role 1i) When Pa|>a pctldlei! poiuier FEAT URES .-!? IPs New :lh Did N on Know AMT AMD PHOTO CREDITS i 'ttyft [ilioio )ji, !.!. 4. NL CU. 41 . 'J l. C.i. Ihy If.--:. top p. ll`J, |>|>. C,j, iSti, iHt X hotiam ri rlii p. 'Aii K.lrnr N. A.Ic h c .; i|' |. L p- i>, 1J *|1 i- if. 11 - 44 A: uf 11, '-'l 1, ii f v p, -j; Carmert p.m-m.; pp. <; V: WilH-iut ri.dl; p Hi Tin* I tomnliu-< 'r| ; i up in hoi I .mi p IP IS miter M fi;. <'>i. Mi-m.Mi.tt Mini-ip; A> MI'u. <'>., N';vtuU:i! Toitk ('orvuir nit., io-iiori! I'yninii.s iWp.; |i. I? A U. i I i*X<v]<C. ho u*m rip Iti I- htivcr.-uil 1 '1**1 urc >i I 'i> , lnr ; l*.il Inm riplii |i K*X luji |i Id Ihiiiilii i <'i.lcll:!'. f.ip n I i X-p i-. W.ltis lin-h> Sf UiH;i: I'i-iiicr X- I m >11 ui 11 p l-i: {livilim PM hit Hlu4in:c hnl Unit p. 'li.S |i. I'.: lui:; Ariio.if: lop i1- li"-: 5!iji > ia S\vh<4 iX Sh'iittl iM*., \Sw-i ipp[ii,ii:u- Mr I ir.ike (, 'n.; hommi (3, 1-s X p. I1': S.uti Mil-.vi-. '7: t ' r-n .;< Uovjji.hb- lhi*Mii|ii I i. 2`l X Pp ri ,;i1 fi. ;. \Vjj ;ml S|(-w:tfl ; pl't p .5m,^ bottom p IP: I 1 i>ii 'J I'r; riplit p hiiyrteili-IQu h I - Imifcitii |. ,14: W.-H-n- Wulir. pc. :C\ :iu <k ;-:7: S\ Imms Up p. Hd X i"l'1 f. ;11*. Alwu h \ Stn4in?. riuht p. 4' H. ti i \ t s<r|, j>. -Pi i > Ifi.-i- i ,m.i,, CHANGE OF ADDRESS To In-eiv U$: \Oi-f !H'M > - > - r1V . m-H-I Vi'III tti'W ,ii!i.i-.- ps'imiplly P*: i-'iliim-. 1 >f.- I'.mS M i):.;y:iu. I ii-i Si n.l .44 a.tJriM- u.ll llio ih -x v . .-n ,1'p gml I,- \ uni- nJiJrn'--! I.ibi'i i'.v.f w4l nur h .Ckv-H't! th?. m ig .1.4m- 11> tilt p.i-: a:V cni:r>ON II. K ryzi'Hi;j- j mi KMtl.Y MKIN'I-: .-I *.s--!i,;se h'.oi *' % '.*!. iD-'Q K. i,<:,, Ymm 4- \i 'i!.-:ti X. V\ i I min ".Cm:, 1 M;m .:n-. >J:. t i piV ri'ra'i v%-,\. Tli i:- it.;u cr i heft Mi' n: !% n>1 hv v p - ?:r i.lnf.nl t.i -'.:np ,s:ih.fiii : efh i-k .iu , hi u>,i in. |- .nt! f In- p-.i!.!,- ! .W |C-i:P.-.i .1! I '. A fki t`mil's itmrrsl "Mminslrtil" pigments Iivo rt'tls anil a i#/<*! -- fill a lung-felt m>v<f til Ihv irrirm i-nd of lfit' rain haw /!y HAUL WKRLINB Ti ic gap in l-lit: red nuif'f* of the color spectrum lias been filled by a new family of Du Pont pigments that combine u misvial light fastness with resisl-aneo to chemicals, heat and "bleed." The significance for manufacturers and con sumer's: more durable red paints, fabrics, plasties arid printing inks. These new `'Moiifistral" red anil violet pigments re tain their outstanding qualities whether they're used in deep .shades or pastel Unis, say Du Pont technical men. Not since the phthalocyanine blues and greens were devel oped about :) yearn ago have there been new pigments with a similar combination of properties, Du Pout chemists began the quest that led to the better red pigments more than a decade ago. They com lied tire then-known field, but it soon became apparent that they needed to look beyond (.lie azo pigments and other common rods. None of these could match the performance of the respected phtholocyamrien, which resist such no lorious color I'aders us sunlight,, heat, acids and alkalis. finally the researchers isolated the tnoleeuks-: they believed would do the trick. 'They made (hem into crystals ol I he proper lonn ana panicles <n i.nc proper size. me next several years were .s{M.-;ni in evaluating the new family of reds to deter mi lit; their performance in the field, A comparinon of paint. I,osl. panels coiit-ahiing rhe new pigments and conventional reds tells l.lie most eonvh icing story. A Cu t two years of outdoor exposure, the new color;.; are praet ieally unaffected, while the conventional pig ments. partieularly in pastel shades, have faded to various shades of grayish while, liven the I test conventional red pigment runs a pool second. Field trials have borne onl t he i.esl fence results. That red metal lie finish on the pie lured car, for instance, has lost only n negligible amount of" color under die Delaware sun, although tile ear hasn't, been kept in a garage since April tP5(i. A coral paint, has lasted just as well on a house. This sort of outdoor performance is unheard of for a red pigment in a pastel shade. The new pigments already have I seen approved by several auto makers for use in iiJftil finishes. They also are slated l.o color such plastic items as garden hose and toys, refrigerator ware, flooring material and outdoor signs. Previous red and violet, pigments were* limited in I best' applications because high plastic processing temperatures dimmed their intensity. Sunlight. acids and alkalis suit- traded still more color. The development also promises to make the outdoor advertiser happy. Printing inks contain"!ig the new reds w ill hold the freshness and extend (he life of highway posters many times. Billboards using present red inks often show severe color change within 30 days. The same is true of posters used in store display windows. Inks compounded with the now ".Mmtaslrul" pig ments give the designer more freedom to use reds on Id.1 anti other packaging materials where aeitls and alkalis are involved. Despite red's reputation as an exciting color, manufacturers have hesitated to put. it on many packages because the sales-winning shade selected usually lost color in short order. New color possibilities also are available to man made liber |iroducers, many of whom seal pigment colors 3 : i : i. v. info yarn as i hey spin it.. Tints i.nd blends of tinnew rod and violet piginenls will be showing tip .soon in rayon and .icetaic draperies, carpets alul upholstery mm<'rials. A new plant, at Newport.. Del., will make the "Monastral" red and violet pigments. I 'rvliaai'ar\ pioduct ion is under way, am; fult-sealc onl pci is scheduled for laier ihis year Tim plant, represents (he most, complex piece of chemical eugineenm; ever ai templed by the Pigments Dept. Him t* the process is radically dillere-if from t rad it imial pig ment. iliaimfact tire, special designs were worked out. and new equipment, consi ruel.ed. Tile neSY pigments, by the was', conic ai a time when many things are stirring in the depart meat. Hoon. for instance, inanuiaci are of "TiI 'lire" (ilatdnin dioxide pigment by the chloride process wilt Im* expanded at a new plant ,n New Johusonvil!e. 'Pern. This will supplement pro duction of the white pigment by the bask- sulfate process at Edge Moor. 1 .'el., and Bull imore, Md. We've scheduled mi arl'de en this devrlojmieni lor an early isusue. Within recent weeks, too, the Pigments Dept, has dedicated a new technical service I.-tbr.ito;-\ near Wilmington. In if are f aeslii ics for iest.ing pigments in paint, plastics, routing, in v. paper ami other prodncls. Here I tie laboratory s SHt-mai! technical staff v. ill lit. Du Pout pigments to ilkuoeds ol industrial customers. This rai ha>tt I Imt h j.:ai;i!>r<l yincp \ jrril lu.>^. \ vi hs (ms.-li. iiinilr m i 11 i " Moiui-UNif tvL ha- Hik*- in m h h k . Man v Kiehem praduets are direel ifeseendniits of sotlium or ehhtrine, tehile mo si others stem from experirare gained in iror/dtig teilft still tieriratires. AH of them stand to gain from this hraiid-neir terhnieal sen ire renter. Ilf I he prutlitcis mink; bv I lie Du Pont C nm|iam`s If numifacltirinis sk-pa- tmcnt\, those iVor.i ! .Icctio-chcmicalx [irnbalily fnitl their way into ns lir. >;:<J it ninjtc of jobs as any I'min Oityrtutsinj.1, metal (ti ieliliiiclltylt'iiL') and Ircachini! textiles (hyiin iftcn peroxide) In ronlimt an atomic icactor (sodium metal) ami pitshittt; nickels skyuaiil ftemihycmlman). I iri"lilcinT fur zinc yds 1 Inirm eu. i i! a i in ! ||,. .-f I,.: :i. t ............ <-i 11: IVniuisttiir inrimilatiims mas hr NUrrierfnth* rrrtlrd yp 10 tn 100 t mih -;-' in plants. 4 It would be hard te mm . m..;m w a . : . ii-.o doesn't depend on at least > .!. me ;:.:i m.m; ! i ; rm. further increase the usefimc- m u- f-..- i'lm-v!; lias just opened a shiny new sales teen meal laboratory, the $5 mill ion building, which Elehem shares with the Pigments Dept, (page 3). is part of Du Ponds growing Chestnut Run sales service center near Wilmington. Meheni's wing is split four ways: sodium, chlorine, peruxygen ami vinyl products, Products of all ftnu gi snips are used in chemical manufac turing In addition, those of the sodium group isodium metal amt a number of cyanides) serve in the electroplating, descaling and heal treating of metals. Chemicals in the chlorine group include trichloi ethylene and peivhltn ethylene, used childly in degreasing metals and dry cleaning clothes. Major pei oxygen piodt cts hydrogen peroxide ami soilitin peroxide bleach textiles and pulp. Vinyls Du Pom makes eight grades of polyvinyl alcohol and six of polyvinyl acetate emulsion are used :n water-based paints, adhesives, paper coatings ami textile finishes. Some of;he new laboratory's equipment is pictured on these pages. Here's a tuief i iindov.n or some euner: development projects worth noting' Leveled eo|perphtlini> hath. This process makes pol ished surfaces smoother because it plates thicker deposits selec ts ely in the scratches made by polishing abrasives. The method oilers bettet corrosion resistance: it also promises to eliminate hulling in certain cases, as well as extra cleaning and racking steps. Current development work is focused on autooioii\e parts. High temper-illur* dcM-aling. Research Is aimed ill remov ing scale from carbon s.eel in ten minutes or less by use of a treating bath made up essuntally of sodium hydride anti molten caustic. Speed, thoroughness ami elimination of waste disposal a re prospective merits of the system. fnijrmed methods for metal finishing. Work centers on pei feet mg the application of phosphate conversion coalings in a trichioiethylene medium. In 11 more advanced stage is a new painting process for metal using irichlorcthylene us die paint thinner. Roth processes could be combined with vapor degreasing in a single unit m provide ;t complete metal finishing system under a nonflammable tri vapor ""blanket." New ingredient for limiM'holil Ideaeln-s, "`(Kouc" mono persulfate compound lias passed vutshuib tests and is being offered in experimental c|tiaiititics to dry bleach manufacturers, Moiv reactive than the sodium perborate that has been popular in home laundry bleaches lot several years. "tKone" nonetheless is stile lor delicate labiies. Two new polyvinyl acetate oitinl-ioos. Recommended especially for I'VA paints (page 33t. these subaiteii'n-ptulicle-sti-e emulsions look promising for adhesives, binders, textile finishes, paper coatings and acoustical tile coalings as well. i .,-i r \1 iii in I h it I min l I'm'tors lias 1111*111 l*r inaLin^ |s\ \ j.j in[N abov r. iiin! .-UNhin^ ' uri<i\ ef j ii o |h 'j i i > irOU NOWHERE lly WILLIAM CARROLL ' Ei'.tmnmy Him, which pays off on the gasoline you firm 'l I ru cars arc capable of giving. Here's tt report f rom a writer I recently witnessed what may be the slowest road "rare" in the world. The object ia not to gel there fustost but to get there with the moste.st gasoline still in the tank. I'm talking, of course, about the ninth annual Mobiij ,;:is Economy Run sponsored by General Petroleum Cor poration. This year's event sent 2SI new IJ. S. stock cars on a five-day, 1,833-mile journey from Los Angeles to Galveston, 'Lexus, in mid-April. The mileages piled up by these skilled drivers -both men and women -would make tlie ordinary motorist chartreuse with envy. By accelerating slowly mid taking ad vantage of every other gas-saving trick in the book, the drivers coaxed their '68 models ranging from a Chevrolet 6 to a Continental -- into yielding an average 18.78 miles to the gallon. And that at an average speed of 48 miles an hour. This mileage figure in billow former years, but only because '58 cars are heavier. The realfy significant statistic is ton miles per gallon--file number of miles an engine can move a weight of one ton by burning a gallon of gasoline. 'Llie average lor ibis year's ears was 48.87. Despite power accessories and softer tires, incidentally, postwar cars perforin lietter on a ton mile basis than their prewar counterparts, thanks to higher compression engines and the higher octane fuels that power them. 1 followed the Economy Hun route, not in a contest car, but in a '58 Edse.l from the I >u 1 'out fuel test, fleet. 1 rode with .Don (modelI, account manager for the I hi Pont Petroleum Chemicals office hi Los Angeles, and Hay McMahan, a Socony Mobil Oil fuel engineer. When i. asked Don why a chemical company was sending a car along on the Mobilgas i.rek, he reminded tr.e of flic many chemical additives that go info modern gasoline. \ SliUOVPIlKi: orKKATHlM The 20 cars taking part, in the Hun were stock modela all right, no mistake about that. The United States Auto Club, which sanctions the event, made sure of this by buying them itself off showroom floors. The cars were then lettered, undercoated and lubricated by General Petroleum. Ko rigid were; security precautions during this pre-Kun fierioil dial when one entrant wanted to change his tires for another make, 1JSAC officials look his money and bon girt, the tires for him. Each car is permitted about 2,000 miles of break-in, but. only with a IJKAC observer along for the ride. Finally, days before the Hun is scheduled to shirt, each ear is impounded and kept under armed guard. As A. C. I'illsbury, chief steward for flit; event, explained, "We permit no adjustment or improvement that the ordinary moforisfoonldn't gel front his i ar dealer or service station." The; five-day trip is an exhausting one for the econ omy drivers. Each of the 800- to 400-inilo daily stints involves seven to nine hours at the wheel, driving at a  your thi` #>wit. pnn'tts onro apits in thill fotr of us pul ittroti ifin l{un in it unr front #)tf l*<uil's fu</ lust Jloot. fairly steady -15 miles an hour. I Oven fuel stops win bo unnerving-. The driver must order just enough gasoline. If any slops out of the tank onto tin; ground il is still charged to his ear in figuring the mileage. On l lie oilier band. I he driver who orders i.oo little can run into an unexpected headwind and eeonomi/e himself right out of the even I. Running old of gas is muse for disqualilimtion. So il, was a group of tired drivers who glided across the finish lint* in Galveston as two high school bands tootled a Texas welcome, 1 light up lo the last foot the wheel jockeys wen- light iiig for each extra point of mileage. Top three curs on a ton mile bask wen- an Imperial Crown with Li2.72, a Chrysler New Yorker with 58.-It), ami a Continental with 55.89. 'The New Yorker was tops in straight mileage, too, with 21.(12. A Cord l `uslom t was next with 20.89. and a Chevy Delray I! third with 20.01. While the Run itself was going on, <Iijodell and McMahan were emnlurtitig some Utils tin their own along the way in l he Edsel. I watched them try the gas-saving 409 miles from Phoenix to El Paso, the improvement in gasoline mileage was minor. The conclusion we were forced to: The really important factors in good mileage are skill ful driving and a ear that's in good mechanical condition. We then spent the next two days on measurements of air and engine temperature and the effect, of spark advance and acceleration on performance. We also ran comparative tests on six different gasolines carried in separate l\vogallou tanks in the trunk. We managed Lo complete our work as the Economy Hun ended, arriving in Calves tun in time to pick up data sheets from each contestant's ear. GoodeII, told me that this information, plus the facts he and McMahan had accumulated, would lx* grist, for the mill of additives re search. Out of the patient collection of data like these, lie explained, comes the steady progress in engine anil fuel el Ik deucy dramatized by the Mobilgas Economy Rim.1 1 )u Pont. sent, a test. car on the Keunomy Hun as part of its eon! hiring research into the retat kinship of fuels ami engines. As a leading supplier of let methyl lead awl such other gasoline additives at; antioxidants, petroleum dyes and tnolal deuet ivalor, tin- company tries to anticipate* the fuel reigutn-inenl.s of engines st ill on drawing hoards in I )et roil. Its rest-arch results are then disseminated to retiners. In addition to a huge ileet of specially equipped leal. cars. DuPont maintains a modern I 'olrolcuni Laboratory when* these studies are pursued. Dii Pont fuel test ear, above, followed same route m cars compel. li p t h 11 i i? s theyLlC LX11.1 oJ u rl r\ 11IJ t *71 fn VY 1 LJ. .1 m i t 1 aceHlctoo" J itorcec1 -riTiatif* 1 (JlClo Lily . amaze even tin fa r- sighted men trim preitieteit it great fill tin- for this World If'ar I# youngster. fSiottrisiietl hv hnth esltthlishetl markets a tut tie tv ones* it's still grmring rapiilly. Hv K Mll/Y I IK INK Th, : boat maker, the plant, main Lena nee man, (.be indus trial designer and the construction engineer all are in debt t o a group of versatile materials nailed glass-reinforced plasties. Ar. a result, so are file rest of us-s. They are in automobiles, aircraft, cafeteria trays, containers, eleelrieal equipment, fishing rods, furniture, missiles, mdomes, stor age tanks and a fistful of other places. A glass-reinforced plastic commonly is made like a multi-deck sandwich by alf.ernat.istj>; layers of glass filter and resin, usually a polyester or all epoxy. Explanation for f.lte material's burgeoning popularity lies in its balance of proj.xtildes high strength and low weight combined with dimensional stability, good electrical characteristics and resistance to weather, water and chemicals. DuPont's Engineering Depl. figures it. has saved $250,000 in the Inst five years simply by using glass fabrics for such malnfeiuneo jobs as lining tanks and patching pipe. Application is relatively quick, and the re sult ia oxceptionully durable. 'Fake, for instance, tin.: metal tanks that held polyvinylidene chloride and were eaten two-thirds of t he way through in three weeks' time. Lined with glass fabric last summer they are stil going strong, and an engineer estimates the lining will last ten yearn. Fabrics and resin for these do-it-yourself jobs are avail able from several companies. Homiilite Oorp,, Wilmington, Del., even offers a special kit containing all of the materials needed for a teat application. In the last few years, thousands of small boat owners have covered their craft with glass fabrics to reduce maintenance drudgery, Meanwhile, makers of new boats are taking a king-sized bite of reinforced plastic. Little more than a novelty until 1064, glass boats accounted for about, 20 per cent of the outboard market last year. Modem Plasties reports. "VOLANT NATUItALJlttllK JOINER High wet strength, obviously essential for reinforced plastic used in boats, is important iti most other applica tions ;ts well, A C.irasseili Chemicals Dept, product, "Volan" bonding agent, plays n luvy role here. "Volan" is a Wemer- tyfx* compound in which me! haervlie acid is joined with, chromium to form a highly reactive complex. When it's applied as a finish by a glass fabric maker, the chromium head of Lite molecule is strongly at true led to the glass. La lor, when a user adds resin, the organic tail combines with that. By reinforcing tine linkage between the two surfaces. "Volan" can nearly double the wet sr.rength of laminates, tests show. "Volan" also is a major component of i he "chrome" size often used on chopped strand and roving, both popular forms of fibrous glass. Besides add tag to their strength, chrome-sizing these materialsreduces static and contributes to the easy cutting required for convenient processing. Among glass fabric users who specify "Volan" is Taylor Fibre Co., Norristown, Pa., manufacturer of highpressure laminates in sheet, tube and rod form. "We've tried most of the finishes available,'* says sales promotion manager Kenneth Hayes, "and find that `Volan' offers the best economics. It gives ms the lowest water absorption value combined with the highest strength." Another user is National Tank Co., Tulsa, OMa., which lias made sizable storage tanks from reinforced plastics for the past seven years. They are rapidly gaining favor, according to plasties manager Jack Gibb, with notable successes at handling corrosive substances and products that might be contaminated easily by foreign matter from a metal tank. " `Volan' gives the fabric an excellentfhushthat makes it easy to handle," Gibb reports. "Untreated doth, we find, is brittle and tends to unravel." National Tank now lami nates some sheets with a standard curvature and Ilexes them later to produce the desired tank diameter. The need for flexibility makes fabric treatment esjreerally itnporlanl, Gibb notes. Another eonslmi'tion use for reinforced plasties is in duets, hoods and exhaust, stacks. I)u I'on IV Wngimvrmg Dept, specifies this material where rhemie.-tl resistance is important. "The light weight of glass-reinforced plastic makes these duets and stacks easy to handle anti install. Also, flu; fact that no protective coating is required means lower maintenance costs." mi engineer notes. Want to know more about "Volan""/ Gnias-clli will he glad to answer your questions about- bonding with it and will furnish names of suppliers of fibrous glass treated wild the I'heiuieai. Write us and we'll see that your request is taken care ot promptly. BBT i ... V\ \ ' i111 !. ili.iur < i <; h t h to iUBB Nutionni Tank C.Io, oilers corruKtou* resistant. storiigi* tanka of rein forced plastic, 'reports them espectially populiir in ehemk'i,il and oil iiNliiRtrie.H. . Hb BH BHHBa in H Polka dot paint lift l*i# nitrocellulose helps take the sting out of a veteran practical joke Til*- humor him faded out of (Ik : old routine in which ;m experienced painter scuds his gullible young assistant to pick up ;t gallon of polka dot paint. Today, like as not, the youngster will bring hack what lie was sent for. This is h o leauKe blue paint, mixed with yellow no longer necessarily gives green. Thanks to II. 8. Patent No. 2,!All ,004 (issued to ('nlorainii Coatings. Inc., of Los Angeles), paints of various tyixi.s and colors now ran be mixed l.o give: a multicolored or speckled effect. It. rep resents one <if the hottest new* developiiicistK in the paint, business, and some 30 finishes rnanufai turers arc currently producing the materials. In I.lie process a water-insoluble nitrocellulose lacquer - (.he Du Tent. Kxplosives l.k-pt. is a lung-l ime producer of nitrocellulose..is sl.irred in(,o wafer containing a sta bilizer. TIiis yields a uniform dispersion of droplets, the size and shape of which can be varied by adjusting (.lie temperature or spaed of mixing. Droplets in the shape of circles, ovals, (.eardrops or even filaments can be made, with dl;imeters from one- hundredth to one-eighth Inch. This (1 isjiersion (lien can he applied with an ordinary spray gun to paper, wallljoard, plaster, cinder block, wood or inel.nl. Or il can be blended with an unlimited number of other dispersions of different, colons to give ns oiulf.ihued a result as anyone could wish for. Not only can colors and the: size and shape of the lacquer droplets lx: varied, but glossy (hushes can be mixed with (lat ones to multiply the number of effects that can be achieved. Multicolor lnequera have exceptionally good hiding |x>wei\ A single spray coat, will cover up the grain of most woods and wifi even obliterate knots if they're the kind that don't bleed. It thus solves the problem of making different surfaces appear uniform. Wood, plaster, metal-- all of them look til ike with a coat of multicolor lacquer. Because of the thick film in which it's laid down, the lacquer is highly durable and resistant: to scrubbing. 'The irregular design also makes scratches less noticeable. And been use each of the colors extends nil the way through the film- in contrast to the spots in a spatter (inish-..surface wear is hard l.o detect. The paint is showing up on household appliances, furniture, TV sets, .sporting goods and toys, as man ufacturers cash in on its salable combination of novelty and dm ability. The same properties are putting the multi color finishes on the outside and inside of hotels, office buildings and homes. Ifor further information, get. in touch with a Chemical Hales office of the Du Bout Fix plosives Dept, or write to the department at Nu iik mr ; 6530, Wilmington 08, Del, "i y o u r c o mme r c i a l s " Music to au v sponsors tutrs. praise like this crops up in one out of crcry six letters i nun rieircrs of the Dm ihmt Shmc of the MonIit. I letups ii'lml goes into these three-minute contmerciitis. Knur Dm i *<>rH aih rri mm * Siiison. .ruu'k t .i ;>>* in . ? iiifiU i mm mnu ami j ,\ man i mv - |u irm for Shatt of tfn- Month ro nmm'iaD- Harr 'Nrilj-oii ivs k*v - "-Mu \ Unn! 1-m mu* % <>u 11 -an ilti- i;iil, w hen 1!'uni h S/iotr / she Munch returns m ihi* OBS network in September, it wilt bring- buck with i: notin' ok the best-reeei vet i eor.unemals on irlovisiuie ronmeiviala that even himl-shelled TV et-ilies gnvted last, year wit h si>uiid-i of approval. One factor in (his popularity is undoubted iv their gentle, noa-insistent approach. They don't order the vLower out to his ueigtiborhocid stare on a dead nir:. Utiri t (1, Hunk. BBI KKt) mpi group tirait. urhr-, Hint ITM I'ilrs srripls !" r lilt* Oil Itilil I ns lead, tinder the broad objective of acquit biting Aiiiorj'oiuw with "tin! role uf Du Font an a Isn't: business in our society." they fell how company | irnducis are nutid in ways often unfamiliar to viewers. They in form ruflier than exhort. (I fieri they deal wit h research themes. One populur ommereia] Iasi. spring told how Du Font, .silicon, weal.herable films and textile li!xsi>; are being used in Molar energy devices. Wherever possible, too, news is an element of the miii-iHagM-s. Dim: '-omiiiercial on ihe September 22 S'haw of (Jit Month, for example, will be* built, around the yachts in tin- Amenta's (kip race., which begins .September 20. "We try to think in ferniH of the viewer," explains advcri.isiiif.; division manager Lyman Dewey. "We devote ill ret: minutes to each commercial in order to tell a con nected, infurniaf.ive story. Ami we place tin* three commcrrial.s in each program so as to interrupt the entertain ment as little as possible." This thoughtfulness evidently is appreciated by nudi ences. These romrnenlH are typical of hundreds the com pany has received; "I am happy also to com mem. on the interesting coiriiiicrriulsand the good taste displayed in their minimum interruption of the program." . . fine cotntnnrcinls which were not only jnfoi ma ll ve, but also interesting." "I only ho|*e this will euro ui ago sponsors such as l)n Pont to continue in this vein." And TV critics, in a rare dcsparlurc, have j(raised (Item, loo: . . in good taste and educational." HUlhuard. ". . . intelligently conceived and arli.stieaily designed." iVow York I >ai{v Nenm. "They might possibly be regarded on a new high in TV advertising." t'iltshaifth t'rcss. Ideas; for commercials conic from IS cuminifuses set. up throughout the company. Of 145 subjects suggested this year, more t han 20 are being made into commercials for the 1958-59 season. The primes responsibility for pro duction belongs to four men in the Du I 'mil. advertising department, a I )u Font, public relations man and a group hum (he, advertising agency of Button, Barton, Durst.inc; & Osborn. Months of discussion, writing and rewriting precede the time when a commercial is ready to go Wore the cameras. Then i.he scene shifts to the Hollywood studios of l ini vernal liihsmaliomil, where IK to 22 commercials will b: filmed for Lie I<158-59 season. On these pages we trace the production of one yield: hi: seising this fall...tin: story of how a Du Font chemical helped spark 1,1 ns formation of a new business, a story flint has been rc*|x*;tled over and over with any number of company products. .l ogin i lilic si mh M nig n i ill i* t ital illi.ptt i ! lit l <~MI iu i: , alarm finds cameraman Jimmy I )n h i gill on cram Ncihon and Thompson arc gelling camera'--! nr \ ir\ t ai*i* itciimil \,i:cc i on hear on ini I'ont cimiinerriat- hclongs In hob .Shield, seen here diddling; in tile narration idler filming id (ire aim in commercial is eotnpleled. Kver-prcscrH \rifson is behind him. 12 Set design is cheeked liy agency producer Thompson and studio art director Bill Newberry, This wl w one of nine used in liltnitiK fire alarm eoititnerdal. Prop man shows fire alarm to adore. Commercial tells how small Inwinnwnim developed it, using "Freon" propellent. Script conference on set involves iliwtc Virgil Vogel, right, Ncilstm and Thoinpaoi SI mot in* of commercial is uliont to hept -- HpeeiaI rlleels nit'll ereiilo siituke lor lire roi'itf, (>1 Hi* st I> used Ini' group of Inc I'iiiiiiHiTi'inls. nine had to hr t-peeialh niaile. To keep rusts down. eomniereiaF are shot in group'-, sets are re-iit-nl. < Ir. Studio luitk lot F aitkise nit It lights mitl ilnnie ns in* swjuenee captured on retire riglti t)u Pont uinliim picture Him. Fail f litis sente ntimliere.l Irn. Fire equipment WUfi lonnetlliT "lilts"Vngflf Film "o lo work on a I) i i IN mi I mu m invia L mu- oi appiovmiatrh 1J0 lo be ,shol at flu* lh\> s oar. I.ikr iiiiiiiv im<>\ I -I rlor< a "T\it doul of work lor I \ , Hark in V\ iliniiiiiloM- a |ir<`\ irw . Oowkw jirojcrt - Siam' >\j *'// Mr-nt:: {or. Ir It h> ruilil. ;nl\ r'd ^ <htcolor I'Vc-il \\ anlrobiir ^ . I mao 1 low \ . a> io diivrloi \ |i|4o^a1<*, aiuH ,, M. "I Jin k l Lirkrll ot 1 In I Ymt ivkifoo ia . , , Is lilliiiiiu, a fWilfiei-li-lil rlei tty NKIt, O. .It'll INSONf an-l JAMKS 1 f. Met 'OKJV1IOK .Yd far from when* American Revolutionaries stemmed I,Ik s British tide a I. K i ngss IVI o u j i tai n, modern North Carolinians and the Food; Mineral Co. are helping shore u|> our contemporary defenses. Without going into details most of which arc; classified secret- we can say Unit out of an open- pit mine here comes a lithium- bearing mineral called spoduiiiene that's useful in making atomic weapons. Almost everything about lithium is unusual or down right bizarre, as a matter of fact, 'lake its density: it is the lightest of (.he solid elements, weighing about half as much as water; the heat of a match will moll it,, hut it lake* `/t,403'l<'. to Itoil it; it's useless as a structural material lieeause it can he cut like h o much cheese. Yet it's highly effective in other roles--us an alloying agent, deoxidizer, desulfurizer, degasifier and catalyst. .Like the other mem bers of the alkali metal family, lithium reacts with water, although not nearly so violently as sodium, potassium and a couple of rare cousins, cesium and rubidium. It. occurs in nature only in relatively stable minerals. 'Hie metal Wits discovered in 1817 by a Swede, Arfvedson, Im.iI, then it was allowed to slumber for it cen tury. Invert chemistry textbooks gave it, only the briefest of mentions. The Germans grew desiderate enough in World War I to use it as a substitute for fin in bearings, but that application ended with the Armistice. Thomas Edison used lithium hydroxide as part of the electrolyte in his nickel-.steel storage battery, and World War 11 pilots used the hydride in lilt: raft rescue kits. Reacted with water, the lithium hydride formed hydrogen and filled the balloons dim. raised radio antennas aloft. I ' " 11 I 14 -iss !l fer ' S ll fe I.. J g. f | Is :Hf il .1: /e.g. >: _.a 1 \ 8 S_ 8>w f %' % . *>_.% I 8.8 liiiil lieljw ffTease yonr r.ir, liraulily your lumir--anti protect. your country Even ns recently as 1911, the 1!, 8. 1`strut. Ollier re ing loose an average of close to three tons nl the hard rock jected all claims for lithium greases, saying hi effect (hut aid ore. In an attempt, lo improve operating procedure.-, the metal was the same- as sodium or potassium for all mine superintendent 1C ('. I`low is experimenting with practical purposes. A couple of years later, the Office re free-running types of explosives in ragged holes. vised its derision and grantor! the patent. 'Today these "We urn.' I hi Font .MS delay caps to coni ml the throw ``all-purpose'' greases represent a major use tit lithium, ol' the waste and the ore,'' Flow said, `in this selective 'The element adds such desired proiierl ton as resistance lo mining, anything we can do to separate waste from good water and abrasion, a relatively uniform consistency over ore is h i our advantage, and the caps help us do it. MS a temperature range of ---10'' to -f -100T'. and exrellem delay caps also improve fragment.;! t ion and reduce unde .hihrieating qualities. simble ground vihralions." * Another major civilian market, for lithium and its Once blasted. I he ore is hauled to a nearby eras bel compounds is in porcelain enamel and glass. Here it. pro aud thence to a concentrator. It's then shipped by rail to vides mi|*erior chemical durability along with good work Senbrighl, Va., for further processing. From i here it's only ing properties. If also has replaced lead in some types of tin* proverbial Imp. skip and jump to Atomic Energy Co-it quality glass such as lenses, and has made Lire production Hussion plants nr in civilian iuilustry, of intricate shapes like television tubes possible at a com Now ihat its 100 year nap is over, Hlhitnn shows paratively low cost. lit Lie likelihood of davit:;.; oil again. Lithium and its compounds are used in metal refining . and in fluxes for wekling and brazing. Lesser known jobs include their use as organic catalysis (in making synthetic rubber, for instance'), dehydrating agents in air condi NCI t >, jiiliii-iM!. h li. i. c<-.sill Inn nl llii;- aillcli* ami -iq teililriil el Mil>!e - kill!;- Mountain itiaii*. I l-n- lie is on [In tioning systems, components in low-tom |H>ruluro dry cell batteries, and as oxidizers (hr solid rocket propellants. The metal also serves as the key ingredient in a new alu minum alloy that keeps its strength at high temperatures, MOST <!' IT IX X. CVKol.tNA Lithium is distributed widely around the globe; it occurs in about 150 minerals. But only four of these are of commercial importance, only three are found in this coun try, and only one, spodumene, is miner! from the .10- to , 200-fool-thick vulcanic pegmatite dikes at Kings Moun tain. According to a res rent geological bulletin, nearly 93 |x;r cent of this country's reserves of lithium air ia Norlli Carolina, most of 1 hem centered in a 25-mile area around Kings Mountain. To free the deposits from the ground, Foote Mineral Co. uses the most, modern open-pit mining techniques and Du Font explosives- "Ked Cross" "Kxlra" (W, dynamite anti MS delay electric blasting caps. Because waste rock and valuable ore art; so intermingled in the dikes, hoi h art* mined simultaneously from six 20-lbot-higli benches, or levels. Wagon drills cut vertical holes (M feet deep and t in* 1 hi Font dynamite is loaded into these. A hundred or so . boles are fired at a time, wit h a pound of dynamite hlasi - \t Mi is a chunk of s|niiliimcnc. die nhil ish mineral llm! I'VmUc refines into lilliinm mel at and cm upon mis. m I fhs i>. I hr .Mnil:* iipuiiji <i riliii.'i Nils in ^jiriiil ,-i \t ;?i' ti ; I hi Pnlif >- hummer mi" t h|it. 1 .rl 1 to rii'lil- Pi'tifc.-.-iH - \\ urlli K rir^frL N'H'fli i .amfiiiii SNUr 1 ..ollr^v; illiriiliH. I imri'fiK a\ l,4itiis\illr: and Iknt OniNi. ( iortir! I l nivtTids y. TBCE PROFS COMIJE TO WATCH Iu h Ii vettr hit Pont incites several rnpiiteentiii projesxors la sac jar ihemseii'e.s niait uniits! rv experts of etiliepe prmhtates. 1 he philosophy: han't try to fed 'em slant- 'em. It was tike: tiny one of ;i <;n/en other Monday morning con ferences at Du Porii'j Lumbers Building near Newark, Del. The project leader and three of his engineers were there. So were two men from I lie Du Pont operating department tli.it wanted the new powerhouse, plus specialists in waste disposal and water supply. Bui to the mechanical engineering professor at the end of Site table this was no ordinary .Monday. II was a rare oppor tunity to observe host industry gets its wotk done. sTSw fr I fill illg *n<- day. Prol. c.iasta s imI- inndrl shop .. , -si*- computer being |irogminnit-(l and opf*rah*. Prof, BartJ. Conta took a sabbatical from Cornell University 'last September to spend a year in Du Font's widely diversified Engineering Dept, He is one of three educators who are on leave of absence this year to see first-hand what industry really expects of the engineers they help train. On the same morning Prof. Wurth Kriegel, in charge of ceramic engineering at . North Carolina....State. College,. was..In a... research laboratory near Wilmington, noting what it takes to make an idea come alive. Miles away In Kansas, the third member of: the group-..Prof; Gordon C, Williams, head of the 'chemical'"engi neering department.at.the University-of Louisville--was checking construct ion me! hods a t a new cellophane', plant.. being. ...built by... the Engineering Dept.'s construction division, PKOCKAM IN SEVENTH YEAR This unusual campus-to-tndustry program got started in 1951 when Granville Read, chief of the Du Pont Engineering Dept,, remarked in a speech, "Training men is the educator's function, but it's our responsibility to help educators by giving them n working knowledge of' engineering as it's practiced today." Read proposed that campus and company bet brought to- get her. with, no holds -barred-or-doora- closed;-He- named" it-the Year-1 n-.J industry Program and suggested that professors become part of Du Pout's 'closed-circuit system that wires' together all ot'H,'peoplein''reseu'rcli,cie\,etopment, pilot plant operation,ctosigo, construed on and ope ration; of p lit ni file ill ties, " .................. .........That's just what was done, Each year-two or three selected engineering educators--those who teach and help shape educa tional policy--become temporary Du Pouters. They're free to observe or take part in more than a hundred engineering services. Prof. Conta, for example, was more than an interested ob server at that Monday morning conference. He asked for and was given responsibility for part of the heat-transfer calculations for the new powerhouse. To make the program more effective, in cidentally, the men aren't assigned project work .unless, they request it. In this case, Prof. Coma had a strong personaljnt|il|f. " --he's writing a textbook, on thermodynamics, . "This specific contact.with an engineering service in. my field', wasn't-why-1 accepted the invitation-to join -Du--Pont-for-nyear.~ though," Prof. Conta told us. "If that's all. I had. wanted,. 1 could, have gone-to work for a power company. Instead, this is one'. place where 1 can see how people practice engineering in other fields. The insight is going to help me in my teaching." He's getting plenty of willing help. His first assignment of about nine weeks was spent at the Engineering Research and Mechanical Development laboratories in Wilmington. He sat in on meetings, tailed .with the .managers and watched how a.group goes about developing automatic procest controlr and machines .for handling text!les at high speed. ................................ ........From there. Prof. Conta moved to the Design Division; He worked' with architectural-power, electrical and.instrumentation engineers. Rather -than cover one project exhaustively, he got: in o'ii'''ll'''gtmma''lddf'''o'f one arid" the "finisKof another!''Thus'he' had a chance to see how information is collected, who selects equipment, how drawings are prepared to agree with construction conditions and how a new plant is started up. The Design Division gets help on many thorny problems from consultants in other divisions. In these Prof. Conta betaine acquainted with the duties of specialists in packaging, mainte nance, materials handling and pollution prevention. During these periods "he .had time to sound out recent engineering graduates, make 'extensive 'personal "notes," attend 'Conferences o rt "eigineefi fig methods and take field trips to company- plains. ....................................FAMILY..LI1'E'CI'IRS"1W................................... Such a schedule flip-flopped the professor's normal taim.ptis -work-habits, but-it-didn't-disrupt-his personal--ltfe,--At--the-start--<rf' the program, Du Pent helps the visiting professor settle in the Wilmington community. He's paid Ills normal campus earnings plus such expenses as moving and travel. He is also invited to join the company's country club and take part in the department's social activities. Prof, Conta, for example, moved his wife and two daughters to Wilmington with him. The girls were enrolled in school at the beginning of the academic year last September and finished in June. Mrs. Cantu, active in garden clubs, con- ttniiecttfc ; '...........' ;.......... '.............. ' '... When their travels end and it's time to return to the campus this'full, Du Pont, hopes the professors will tale back with them "ir cfcarer pietnre "of engineering' in indttsiry.'The cv tcBifoe'ovef the" years is that, they do, and that both their students unci- American ..industry, are. the'benefit: piles,..........f.'...........f.............. '.............. f.. Here's fane #i enstoin htiiltfer of can! rnt equipment tint's it teifh Iht Pont '*( '.nmtifltw engineering reprmlnelittn jihns--and stream lint's his [traduvlitnt ftp land Illuming an pntin* railroad from a single control pant*!. Shuffling freight curs inl.o piano by pushing billions. Sanding a million gallons of till from Texas to ('ll it-ago veil h the tlii'k of a finger. Thane art* some of the oliM't runic minifies made pos sible by the Union Switch & Signal Division of Weatinghouse Air Brake Po,, which builds one-of-a-kind machines for tin* automatic coni rol of railroads and pipelines. The division is a pioneer in the liold of push-bub<m science, yet if is able to use only a fraction of it-s accumu lated electronic know-how to speed ils own production. Like any shop that, builds U> order, it. can't use assemblyHoc techniques. It- must rely on new engineering and new hand production methods to get complicated jobs old. on time ami al reasonable cost.. Since last. year, one of these methods lias been tile use of new Du Boat "('ronailex" engineering reproduction (Unis. These unusually rugged and dimensionally stable (Urns arc used mainly to duplicate original drawings and as a tool to save time in drafting work. Du Pout's full line includes contact, project ion and direct, positive films, but- Union Switch & Signal uses mostly direct positive for making same-size reproductions. The division saves lime at- the drafting table in sev eral ways. Pur example, drawings of control systems art* not started from scratch if they contain the same basic elements. Instead, (.he elements are drawn once and then photographically reproduced on "(fromi Hex" as many times as necessary. 'Finis (lie designer is saved tedious copying of t.lie .same elements from drawing to drawing, lie adds only certain lines and notes. When preparing wiring diagrams for complex, one-ofa-kind control systems. Union Switch & Signal starts with reproducible prints that contain parts of a composite con l.rol system. On l.litwe the designer adds the required wiring information. Then be cuts out the utilised elements and reproduces tin* selectively cut prini on 'H Yana flex' Hours of eradicating time are saved. The customer is furnished wilti this final reproduction, which is as good as or better them an inked drawing Mach year the division makes thousands of new drawings and hundreds of Ihonsand.s of prints. Whai's more, drawings on aet.ive<'ijtd|iment dale from In-Inn* )fk!(). Years of handling have worn some of these old draw itigs so that it's impossible to get. legible prints of [hem for manu facturing. By reproducing them on "(Yuiiailex", i hough, and touching up the weak areas. Union Switch & Signal gets a sharp second original with a minimum of redraw ins.;. Still aunt her use of "(Yonntlox" helps Union Switch & Signal put an accurate picture layout direclh cm metal or plastic parts to bo machined. 11 eliminates tedious hand layouts and checking lime. The part- is spray routed willi a photosensitive emulsion, placed in cum act with a drawingon "Oronallex" ami exposed in a vacuum frame. Af|er development, the part is oil lie? engraved or used rs a template in punching operations ;,seo photosi. 'litis is feasible because i ho "(Ynnar" polyester base of *(.''ronailex'' resists shrinking and si retching, Variai.ons m temperature and humidity hardly affect it, list* of t.lu* new reproduction films is only one of many wavs Union Switch & Signal is streamlining its complex job shop operation. The division has concentrated on developing new design-; since its formation in 1881. This approach helped it. build atminmt-ic systems years before tlie Word "automation" Was even invented. Recently i he firm ilemons.nitcd (he pennii imate step to complete automat ion when one of its sysjems operated a train without- an engineer. The nil imafe. of course, would he to eliminate the mail at 1 he remote ('oldrol panel, and this, iuo. is said to be possible. mats. Iwrnl ami Ikmnrl rdurk.-v dum hruinl % ;ii l\ oi non iniii i< " hi *< Mind and Harkdi <j! ss j mj iu'r> o| I lolrf (irrna al Wn\ nr. : !' vi: J. | 'M fi ;;t m V:.;T m .. 1' T -- aasmiM ^: V:M la *4 v'fof .| >i L, ' < <r > ...! i >! I > i : I;!.! i \ ;. ; .: i . r: i . manager Stole check out first arvlk; fiber shipped froin plant. TUt' mtmt> tvt'i'k a mar fhi Ptmf plant shippeti WAYNESBORO, Vi llesHonts of 'tills' 'town" have "8" special reason this' "fall for 'bain happy to don clothes made with "Orion" acrylic fiber: Du For has started up a new plant here to make the fiber, boosting tl: company's total production capacity to 100 million pounds year and bringing more jobs to the community. Thus it's good news in the Shenandoah Valley that moi than three times as much "Orion" will be going into men's an boys' apparel this fall as last and that women continue to favc the fiber for their clothing, ....... The American male ..got his...first...real...feel.of..`.`Orloii"...M...fa and winter clothing in 1957, after some years of wearing mostly in,summer garb and sweaters. Finding it "blended wit " wool'in suits, sport"coats 'and' slacks,' his'reaction' was -quick;"!: lilted it. Retailers' shelves, cleared, reorders began to. climb, an more, clothing manufacturers started looking to "Orion" for m in their 1968 Ml and winter lines. over, coat nweuter in bulky knit, both of 100% "Orion" At Vi'cwtwo c k I School, hoys model wash mfKFv fup-pi<*co sbirf-vost. HcdifT < VI --TrrT^^ .......... I.... tiulsantiiir ir<^ and m\i at eftM-mt t >tili ilmlrr iiriMrm <| 1>U , "l Vlor> Id'. i;non aiv \\ a>hablr, >Iav lira I. Ira \ rlrr r I'uoiia < ar<h<ali i* nl 1 00f ^ - ()rlm> r yiH'ks :d H Irh n' arc n\hiivrt!. 1 m T iti JE O ILi SJt ID? o i v i 1 m I.0M >|Hir{ r-litrl?*. Ih MIi id <> s' h'loii : st ouL arc \r, and iVil |il,i.d, I'liai'i'iijd Idiink itli ml 1rim. H:i:i dacSvr- arr .d- 'O hlciid ol '< h luit ami unl: powL> riii'iit an- a>- >U idlmi \anil %% ills uslmi lih>. lice /i/s/ "Orton'', Itnerntpeople pterimred fall clothes marie with the acrvlic jiher "' \\ IHlcr -)HHi ,-llirl- combine . The siieeess enrne as no surprise to Du 1'out's Textile Fibers Dept,, which ;mfici paled increased demand lor the fiber more than two years ago when it began construction of tin; new plant in Waynesboro. The company has been making acetate fiber here for almost oil yearn, and it was f here that development work nn `'Orion" was done a dozen years hack. Until the new unit went, on stream, however, all commercial prod not ion came from the May plant at Camden, 8. C. Waynesboro citizens followed const ruction progress closely. Employing more than 20(1 local r workers, (lie plaid stands ready to meet an de creasing demand for "Orion". Now 28 fabric suppliers arc making fall-weight fabrics containing the libe>.\ while last, year then* were only live*. Available are blended fabrics ranging freon soft flannels to smooth-finished worsteds The Da Pont Mafiminc liew a collection of 1908 fall ami wilder fashions in the new fabrics to Wayiiesboro- some right after 1 heir showing m New York..ilk* day ihe first large-scale shipment of "Orion" left the now plant. Waynesboro people woo* them for us handsomely against (.lie backdrop of tiled historic town and countryside. They fingered the- rieh-texturei! fabrics, ihumbeil the sharp creases, rumpled the garments and Watched them fall hack into shape. Then one of our models put. if into words for all the others as hi* settled his shoulders info a smart, sport coal, "lies', (his is great"' be ex claimed, "I'll trade you my still fur if..'' '< h-U)!}" Iso /,'// IVUh WiiY;;-fsh>ro o'O'lh'/!. < iyTi - i rv. i'iv f\' i : i `{.hi' > Oil ri:'!} .;! <rii..,Or fi'i.r* r.C k NiftH nnw irT'i................................. t t ... ' r e* rani'4^'W'... ;w - *. mi* * .......... ........m .mu*.... .Mmmm. wml^m .iin...... JL . . . us how .much .they liked this'.fall's, sweaters of "Orion", ...which feature 'striking "oew""tenuiw'and"'""no'd''to the" chemise; But Waynesboro girls fell just as hard for the new dresses, blouses, skirts and sportswear of "Orion" or blends of the fiber. Fashion-wise, the new creations we asked the feminine side of the Shenandoah Valley to model tend to subdue the "sack" look in favor of a modified chemise. Fabrics ranged from jerseys to flannels and the bulky softness of the country Jcnit. Still, we couldn't begin to show the growth of "Orton" in women's and children's apparel. For example: ' "Orion" is the key to flannelette sleeowear that stavs soft: deep pile, fur-type coats that cost relatively little; lightweight pile . linings for coats and jackets; and comfortable bathing suits that .....retain""their 'shape:.. It also.gives a lasting 'softness to infants'' booties, jackets, creepers .and the like, and to children's socks. That's what we told the belles. '' Vi Wm4 Tliri-i! of lllifl y cur's new pullovers of 100% "Orion" include crewmeet country Biventer in tomato.red licutlicr; bulky iwhermnn knit with M sleeve; luwirimis Continental knit with patterned stitch. , >. i : .: 1 . : .'ft . < tl ft , Oo tin; f ulrfim Hull oii in j iu sr h i KirUiweur1 eiwemlilio ni 50% "Orhon"/SO*ft wool hi atu-iwit tartmi |llllicl mid blue jersey t*f 80% '*Orlon*YH}% wool, Skirt-or-iHonk {left: and right), st*ill!, iti*metto. slim skirt and tarns all mu tell Rirhem paint spvriuiisl Herb liottnlsfer rnfiorts mi 1*1 f points in fi'iirrnl and tiro v ; ~~ 7 : v ; 7/; 7 Ills only abuiiL live years since the firsi paints based on polyvinyl acetate appeared on the market. Today these finishes, which.. users call "PVA" or "vinyl" paints, are solidly: entrenched and ateadily winning new friends. ' ' ' Perhaps their biggest single appeal to do-it-yourself painters is the fact that brushes and rollers used to apply them can be washed clean with water. Herb Beardsley explained. They have found particular favor in hospitals, restaurants and office buildings, on the other hand, because they ordinarily dry in an hour or two with no "painty" odor. This means that freshly decorated rooms are only out of service a short time. Base of application and durability add to their utility. .......Earmarked to "make theaepaints "even-better are"two"" new PVA. emulsions--one .a. copolymer, the other a homo polymer-- from Du Pont'.a .Electrocheiiieals. ...Dept, " `Elvacet' 1428 polyvinyl acetate copolymer emulsion IS formulated bo that it needs, no plastic ,z.er to give. It h? g It t5 .. "liejxiMlity," '*Bl'V'ace'fc'""t4'40' polyvinyl" acetate minuMon is designed for the paint no anufac xner.. ore- firs to add his own plasticizer," Be irdsley said. Outstanding characteristics of both emulsions are ftleir aubmicron particle size, borax tolerance and wStar resistance. The fineness of the particles--from .2 to .5 microns--malms riiMssible nsncfiftllv water.resistiint Mt- f :0l --t-4^T --nrr ~U\ & i ! 1 ! ] .M i-N-fifr ..1:L * K i.. *5.TM perform ,,! tort Brar-Mry MVS. lugs. The excellent borax tolerance means that interior ii,n1in11to Hao*rI fin . 1.1HIfi'vfiiovfi villUJo Iv,*1n5on iHiiS*-* fttei.'eKL&yy.rl l fmI v iy(.1w .1fT.7f,-.,.Kici.s.l..1t.i plaster "or '"taped" joints ""with" 'good results:' Thanks' ttrthe water resistance, the paints can. take plenty of washings-- ffiiny..Jhpre. than would.be...encountorcd. normally... PVA... paints made with "Elvacet" 14*23 or 1440 also are notable for their grease and oil resistance,.'which.means that they're 'easy"to""clean,........................................................................... JFL ?AitinlJiseilfhcSnSos hPMoScsntJrUl Ull -hfiltmt;J IlfcSW mi ilcimie InHmt? <<Aaifli>rUoIcddE-iVitt'?a +*-i the paint manufacturer, too. They are economical and simple to produce, for one thing. In addition, they possess such desirable qualities as low temperature coalescence, color uniformity, good hiding power unci freeze-thaw and bent stability. The emulsions are Heal for interior paints, exterior masonry paints and primer-sealers, Beardsley pointed out, ....'"In the. last ...ten years... Ikhem.; las. .coMuctod..; more... than. 7,000 exposure tests," lie said. "We have detailed infor- . .inatiou, for Instance, on the effect of extender* and pig ...ment volume concentration on..paint durability and of different modifiers on performance.. . ..;....... "In .addition,, pur new Chestnut Bun laboratory has just tested 24 wetting agents, 12 dispersants and 17 de- lfeamers in various combinations with three thickeners. We now can recommend a new disperser system that im proves the performance of pa hits made with our copolymer emulsion. We're planning further Jab work to develop other types of formulations. Meanwhile, we'll lie glad to pass on to paint manufacturers the formulations already developed and proved in these studies. ...........23 Nylon imirillirtmliftf willi ImiuIIfiB molded of "Eytol", lirisllc? of "Tyner' filament. JI and tools ivltli ilni> able components at aZrtvl" lilip gtsars, btwliiiign, hearings. Folding'- Mid- eliding door, window parts, clrafira-y hangers ol low-friction nylon. Fasteners: Nuts and bolts, 8crivs. wall anchor a, inserts-- all-rrr'"partly nylon. l*or tools ntMixing nybri'8 jinpipo J|iialilii'rt in gears, beariiiflM and couplings. Nylon holts anil oilier look parts, handles, hinge bearings for doors ami windows. Lawn atitl. .garden itn, pfranfrits, until is n li ny Ion, others using varl<mi""iiyl(in" [juft*. hardware foi*. ...:......isreai? What is there about a hardware store that makes every man a boy again? Let's admit it--those rows of pocket knives, racks of rods and guns, electrical fixtures and tools exert a powerful tug on the male shopper. Looking at It another .way, just .to.bring the point home, when did you last leave the hardware store without, at .least, one .more, item than you went there for? In your browsing you've doubtless watched the emergence of nylon plastic-in many ^-hardware'product. It'a popping up all .around, .a fact we confirmed on a recent tour of a neighborhood- store. On these pages .are spine of till}'" typical places" where "Du Pont "ZyteP nylon resin already has made its mark. The very sound reason it's there; Nylon will do many jobs better and at lower cost than will other materials. There's probably no better illustration than a nylon .gear. It can be made economically because the fact that it can be molded to precise dimensions eliminates the need for costly machining. Nylon's-low coefficient of Motion oi-ittiH trusnv; niiiiiinrr-fiuaii. nylon parts absorb impact. "* Variety of fasteners titnile of -`Zytrl" iit;lMle mils, bolts tmcl wall anchor sets. "Liil.i-icsticn-freeliitcliea, lock parti, other window ...and ..door. . a re. "Zytel IIItips with nylon l tear in | * Revolving sprinkler. snap, apart hose wittpler are l wo of nylon's many lawn jobs. Two power-tool uses of nyloti: '"oll-less" gtswar attach' men t drive aha ft for stmtlcr. 4 Nylon-makes silent, oaay" moving Iiant|`8."gutil*fl"1w doon, windows and drapes. V 111..*-- :'!:/v :> -s* `t 1 Nylon toys and sporting goods tire durable, need no - oil, can he made-any color. :+ 4 Ruggcdncsfl, ulnng itligood dielcclric <[uulitiea, puts lit loti iii i-tei'lricat pari-. means, (-<><, t Ii.it il require* lit-tle or no lubrical ion. While it. ia siroii|' anti extremely durable, its light weight make for easier starting and stopping. Many of I hose same qualifies have made "Zy lei" the standard for slides, rollers and guides on drapery hard ware awl for .sliding and folding doors and windows. It wasn't until nylon plastic appeared on the see no. in fact., find these <-onveilienee* beeame really popular. Again, I he same properties that make nylon useful in gears lit if for bearing!-: and bushings in many hardware articles. Nylon's slightly eliiKl.ie. resistance l-o impaet- and to delormation by pressure has been important m several unusual hardware apidie,-if.ions, (`'asleners are made front it. Alt-nylon bolls, nuts, screws and washers are self locking, This principle also is utilized in metal bolts into which small nylon plugs arc* inserted as lurking dev ires 'The nylon, squeezed against, surrounding I.breads, reduee* loosening by vibration mid, when desired, fornix a seal around the boll to block passage of thuds. Wall anchors 1-hitf expand to grip the sides of link's info which Ihey'rv inserted fake advantage of the same elastic property, as do faucet and balleock valve seals. In other hardware aria is, nylon is used for its rheml cal rests!,a nee, in devices that require good dielectric prop er! ies...eleelrieal pings and s\\ belies, for example - and in items where vivid, built-in color will augment tiie plastic's other qualities. The taller is j >nrt ieulariy true in such products as I he all-nylon roller skni.es that will out last, most skat iug careers, yet are quid and need no oiling. An engineering material im-sl piv-ve itself before it apttears in premium hardware, and "Zyiet" nylon has done I, 1 hi 1'oni's I'otvelieniieais I )rpl,, long a pro|ioiient el proper design in plasties applications, has gathered ex haustive performance daia on "ZyteT that can help the designer make sound derisions. For informal ion ahetii designing better hardware with "Zytef'. readers are in vited In write to the I 'uly chemicals Dept.. Hoinn lOhO I>11 Toni l>ldg_. Wilmiiig:on 98. 1 )el. ~'oiid ini.-, mill ^lirMiirrs: rn r- ii*fht\*rijrlj I l: ii,i{iniar!i<`r 1! s m liurk^km imu <`i'h h in, Over the gunsmith's shoulder . . . ire peeked to fii'I the story boh hitI iit'inittfitoii's colorful note 22's. It's an eipmlly ntlorfnl study of presenl-ihty firearms technology. Hy CJKOJM !K UK YNOhl>N A couple of modern gunsmiths were looking at a booklet, on aluminum finishes. "Wouldn't some of these colors look great on a gim?" asked one, "Sure," said the other, "on an aluminum gun." So the first gunsmith said, "Let's make one;'' anti Limy did. Although their gun with an all-aluminum barrel didn't succeed, it pointed the way to a snorting weapon that's making quite a ]slash this year. It's Ileniinglnn'H new lightweight "Kick!master" 22 rifle, I,he first -Rem ington gun in special color combinations. Announced in .January, if, already liar) surpassed estimated sales for tieentire year by May 1. The two gun designers are I larold 1 Intneisker and L, I'*. Huffman, J)u I'out development engineers assigned to tin! Remington Process Development Laboratory at f lion, N. Y. Step by step, the reaction set off by the pair when 26 they made that aluminum gun reached out to utilize the lab's facilities in advanced metallurgy, metal processing and finishing, and even woodworking. The story shows how much gunsmithliig has changed since the days when one man sat down to carve, beat and bore himself a gun. To give aluminum a fair test in a firing chamber and barrel, Hameister, Huffman and Paul Ecciestou, a Rem ington process engineer, made a snuhbed-off model from material on hand, mounted it on a'stock and 'began test firing. It failed too soon, as did ensuing models on which they tried..various.hard coatings........................................ Aluminum by itself obviously wouldn't do the job, but Huffman came up with a possible solution. An expert on 'the swaging process, by which metala"are"joinecl milder extreme pressure until they're all but welded together, he went to work perfecting a steel barrel jacketed with alu minum. Aluminum would take the colors they wanted to apply to the outside; steel would take the heat, pressure and wear inside. - From the first, tests of Huffman's new barrel were successful. Repeatedly, more than the standard number of 25,000 rounds were'fired without metal failure. Finally, just to see how 'much- punishment it' could-standt-exhaus- tive mechanical tests were run. No separation of the steel and aluminum could be detected. The barrel, with its rustproof, colorable jacket of aluminum, also decreased the weight of .the new "Field- master* To 'extend' the-use- of color, the -standard alu minum receiver also was tinted. A new bleaching and finishing process lightened the dark walnut of the stock. The stock was reshaped, too, and its fore-end and hand grip sections checkered, NEW METAL TECHNIQUES, TOO Meanwhile, the tubular magazine, floor-plate and safety got a silvery nickel finish, a new 24-karat gold plating process, brightened the ..sights,., and an.aluminum. butt plate replaced the plastic one. New techniques in powder metallurgy also went .into some of the accessories. This' was the contribution' of process resdtaefr supervisor J. W. "Bud" Miller, a specialist in the field. ..... The lab men chose five experimental colors-- "crow wing" black, "buckskin" tan, green, blue and red. Sample guns went out for a looking over by Remington sales and engineering groups and representative shooters. They favored the two colors-- buckskin tan and crow-wing black--that finally went into production last fall. The new "Fieldmaster" found a ready market. Its scant four pounds meant less weight to carry, ease in getting on target and staying there and loss fatigue from long periods of firing. Most remarkable, - perhaps, was the news that" the improvements had added bifiy $10' to the price of the standard Model 572 "Fieldmaster", ....... A ..check ..of...the. rifles', purchasers reveals .some ...signif-. leant facts. An unusually high percentage are women, drawn to the now gun by its handling ease and good looks. Another large group is made up of men becoming' shooters' for the first time. And since sales of the standard "Fieldmaster" 22 have continued steady, it all leads to this conclusion: The colorful rifles are bringing new recruits into the great fraternity of sport shooting. I SiUililieil-o. rold flniiM'i-i new rillcs. r prototype !>i Powdered i'--: by thin com Mii ill major rob One of tin* rifles' many new finishes is nickel-plating hy tlu* sul lam ale fii'iii'iess, using' Du Pom mlfaniie arid. is on the mtirkel in a new form I'onstruction mem are (xhng offered what Remington Arms Co., hie., calls (.lie most versatile tool yet de vised for fastening vv<toil or metal to concrete, or steel. Remington reports its Model 455 Stud Driver, well known in the powder-actuated fastening tool field, now is lining offered as a basic unit, known as "Power-Mate". To this handle and breech mechanism the user can apply (bur separate stud driving' kits, depending on the amount mid type of work he has. One kit provides a captive stud assembly di'signed to prevent the (light of studs through structural material of inadequate resistance. 'Phis exceptionally safe tool uses quarter-inch studs and 22 <-aliiKir power loads. II A.NDIJiS MOST it HIS A light duty kit, which also takes quarter-inch studs and 22 cal iber power loads, provides the op erator with a too) that will handle 80 per cent of the fastening jobs en countered in concrete or steel work. Operators who want to use thr<*>-eighths-ineh diameter studs driven by low-cost 22 caliber power loads (an apply the 'medium duty kit to their "Rower-Mated' tool. Remington says it gives good per formance with maximum economy. The fourth kit. is designed for medium and heavy duty in the tough est fastening jobs. It's designed to ac<:oinmod;if.<i three-eigtitlis-inch di ameter studs and either 22 or 82 < a liber jx>wer loads. The "Power-Mate;" haste unit is easy to use. Remington notes. 'The o|x.`rator can assess the job's re quirements, rioleet tin: kit he:it fitted for the purpose and, with a simple squeeze of the trigger, complete the fastening. No pre-drilling or outside power connections are needed. n! i5:5}i: fS [!'tc. "1 f.i- U'D T .1! . I M p.; -:' !: . ; Du #*<*#(! Furl DU So. 2 ojfrrs mi vronotnical ami v>n routout u-ay f bent lite shulzzt' pn>l>lvm ----I i. Ilium It comes to keeping room temperatures just right, the power superintendent of Du Foul's Haskell and Stine laboral.ories lias some of the fussiest, tenants we know. They include eliiekens, rahhiis, mire and rats used in long-range imt rifiott and medical studies. Obviously, much work is was led if tests, art1 spoiled by variables that all'cet I he animals' performance, ideal cond if ions call for no more than two * leg roes of tonipemiure variation in mans1 of (he animal rooms Above alt, ibis mean < avoiding power plant shutdowns by careful watching and planned maintenance. This is es pecially challenging because the plant burns residual fuel oil (.he viscous stuff from flu* loot tom of tfie refiner's barrel. Residuals arc attractive been rise tltey'rc low-priced, lull I hey contain impurit tea t hat can form sludge wherever the oil is stored or used. Sludge. in turn, can dismal operat ions seriously. A few monl.hs ago sludge stood six inches Hack in the bO.rtOO gallon tank. ''Removing .ii mechanically, which we considered firs)., was expensive and could have meant a shutdown," the power superintendent explained. He wish the next, tilling he ponced in a dose of I hi both f'uel (Ail Additive No 2 Dispersed choir Rally, {he sludge burned wtt.lt the oil and was all gone in a week. Att ,sitt it tow \ rott <:i i: wt r I*!ven more important.. (he storage tank was in om( in nous use while the KOA-2 worked. and holier room opera firms were completely trouble-free. Being noiurciallic. |hr atldil.ive burned witlioui leaving ash or other residue. 'The FOA-2 (real mer.l cost $20, while the supertn fendent figures mcclinnicn; cleaning would have run up to .HbOt). I !e ox peels t hat a I wice-o-year t renuneiii of FOA-2 - BO pounds Iti a tattle will keep sludge under control. Tile additive was dec eloped by the company's l'eiroleutn ('-hcmicals 1 fivisinn. which markets it primarily to refiners. Besides removing sludge, the product helps pre vent its format ion in trie (trsl place: it. fitiicltoitri as a stabilizer, solubilizer and dispersant. POA-2, incidentally, is dice five .also in distillate fuel oils (lie cv pc used in horn,: humors including blends of catalytic cracked stocks and straight-run products. 2`t The Hu Tom engineering phia lie falien on a netr lank in compreaxors and hydrmtlie eyliuders 1 !h - chemical plant maintenance foreman had a problem. Ho had to shut down a process unit every moiil.li, regular as clockwork, to replace worn-out. carbon rings in a com pressor for an inert grts. How to reduce the down time? Then the foreman heard about rings made with "Teflon" TKJv-lluomearbon resins. He installed a set of them on a test, basis. That was two .years ago, and Ur : test, hasn't ended yet--tire same rings arc- still in service. This episode helps explain why the tough Du I`on l, plastic is finding its way more and more into unluhricaterl compressors and hydraulic cylinders that pump every thing from a gas to a heavy oil. In these areas there are one or more factors- heat., pressure:, friction, corrosive substances-- (.hat limit the effectiveness of conventional piston rings, TKK (tsitnifluoroeiliybne) resins, however, resist most chemicals...exceptions art: molten alkali metals and hot halogens-- and temp: rnturns up to 5ftOF. Liven at C>()OuF. t he weigh!, loss is as low as .0002 per cent an hour. Best of all, "Teflon" doesn't have to be lubricated. This ia (localise I'Mtiii riiiff- iif ''IVIlun" int- available tn cover wide range tif jobs. This lO-fMiunt! riitti s% at*' rtNihlrtl ftsr a li u Iraiitir roiuprr-wir. Mm al rij'hl i-- iJi-lullin" I 1-iiirh rin m a ?hi*l,^trijf air no the plastic's surface in .slipperier than lubriraietl metal. A i'awe in point: A eomproR-x'.r in wot hydrogen service operated with cast iron piston rings. King life, with light lubrication, was usually less than 100 hours. To push 1 lit' pressure from l.hOO pounds to -1 ,f><H) pounds. Mb rings wee needed. As a triai, (tie piston was modi tied and lilted with six rings of "Tellon". Lubrication was eliminated, and the rings were still in service after 2,000 hours. More lubrical ion vv<iuId have boosted the life of the east iron rings, but it also would have contain hi; tied tin* gas. Tills factor alone prevents the use of conventional rings in many critical processes. l.lUilUCVTION II.IS ITS IHthWHU IvH Further, metal rings are lubricated by motion, which moans that in slart-Hl-oj) operations the rings often leap into action without an adequate film of oil between them and the cylinder wall. The resulting high friction causes a jerky start and excessive wear. It also requires more ixnver to get the piston moving. Contrast this with the un lubricated plastic, which has the lowest starting friction of any known material. Actuators for delicate aircraft aileron anil rudder controls, for example, depend on "Tellon" to move the controls smoothly with only miniature power units. (lenerally, the rings are made of TKK resins com pounded with sudl inorganic materials as glass libers and copper. Wear resistance of the compel nd is as much as f>( 10 times greater than with the plastic alone 1 bird lies-., compressive strength, st ifliicss, raid ability to resist de li n nation arc ti]`graded, too. l ltilJt HI l*Ol \|IS TO OM -t bM H tit VM 'I'his makes it possible to fabricate rings of praci ically any size. One inamilacttirer, for example, built a hefty 10 pound ring for a hydraulic cylinder used in compressing scrap metal, An air cond it inner maker, on the ot her hand. needed a ring that was too small to fanrieato. He solved his problem by making the piston it sell of "Tellon". li weighs a mere one tenth gram. Kings lor power steering units, jet. engine afterburner coot rota anil spec in; hydraulic equipment range in sice between I hew two extremes. The seals in many of those units are made of "Teilou", Luo. They guard against leakage, (bus eliimiial ins; potent i; I fire and toxicity hazards. Hlibber lias been the tradition; I sealer, but today it doesn't cover the necessary fluid and temperature range. A final word: One manufacturer has even run success ful tests of tin* piston rings in a diesel engine. This may ho a long wav off as a practical develo( iment, but. it shows ivhat design engineers think the materia) ran do. For those interested, 1 hi Fold's 1 'olychetnieals Hep!., N-2524 DM, Wilmington iW, Did., can supply the names of piston ring makers and additional data on "Tellon", IN LAB TO Many a laboratory worker has longed for a l.teaker that would pour cleanly, be nonennf.unhnaltng and unbreakable. Such n paragon is available now from laboratory supply companies. It's made of n Du Font "Teflon" 'I'FK-f111oroearbtm resiu, by Clientplasl, ine., blast. Newark, N.J. It's possible to pour from the beakers with no dribbling because "Teflon" is nonwettable. Sticky substances tend to release easily from the plastic, too. Chemplast oilers a complete line of ` Clveimvare" laboratory ware made of the* sturdy material. Included are evaporating dishes, watch glasses, stirring rods, "police men" (spatula-type devices) and tubing. Metal inserts in the stirring rods permit them to lx* bent info various shapes tor such uses as powered stirrers. "(. 'hemware" is especially useful in critical laboratory analyst's because it's inert, to corrosive re agents and caustic snlnl ions. To test its heat stability, Chemplast filled several beakers with molten high-density lead alloy and left them at (>0()''F. for 24 hours. The firm report ed that there was net observable change in any of the test. .i>ecmiens. 31  NEW TRANSPARENT PLASTIC FILM with superior weathering qualities is available in limited experimental lots from DuPont's Film Dept,, Boom DM-89, Wilming ton 98, Del, Designated Type R, it is strong, resists chem icals, transmits ultraviolet, light and withstands a wide 4-f iwin T Try*-* <i <- j 'im yw1*^ ^ a j in(Hn J : I. ';1 :t' : c! i:: ! I: 1 i!.: T j. i i ii:F A > ri m ; :;; . i l.is-J.ii * URETHANE FOAM package protectsdelicate gyro system of ballistic missile during shipment. Fabricated for G. M. Giannini & Co,, Inc,, by Lyon Aircraft Services and Shelley Mfg, Co., Los Angeles, package fits snugly around gyro and slips inside metal container, eliminating need for elaborate hand wrapping, n e w HEAVY-DUTY SHOE. SOLE of DuPont neoprene and "Cork' resists-heat, oil, grease, 'gasoline and most chem icals, says the maker, Cambridge Rubber Co,, Taneytown, Md, The die'vron design of the shoe tread adds skid pro lection, reports a Cambridge Rubber spokesman, and the sole Ii; flexible and resilient underfoot, . : ;? f, , : , r.i *.! 1 o. ; :t S\-t-i !, \ |f-, -ii. ( !.'; -i ; * I r >i ' i ;o i: ii,t` ,/ ; 1 .r :: ii- 1 i 1: ; J i ;; ' ;|w- nm-te, in, i i,i;;,a vuivc. coin;-;i;> uovv ni .o'. , mrough Uiuit-i lulie from probe to battery, whom arid tnvol can he ob served, I'rolto-1 'al< uses special models of "tjubitiiiner" and probe dispenser, products of the [ hrtwin Corp., Baltimore, Md. ELASTIC WblllllXC tor (iuLbitij'. made with a new type of neoprene thread, retains elasticity despite repeated <Jiy cleaning in either pcrchlorelliy lent; or petroleum cleaning solvents. Joint developers United Elastic Corp. and Manilla in pton Rubber Thread Co,, E-asIliainploii, Man:;., and 1 )u 1 font's Elastomer Chemicals Dept. ex pect in<t o ;isod use in etasticized waistbands and cuffs. ... COLOR SI, ID Its lake on new life in Vista r v icnver with lens molded of optically dear '`Lueile" acrylic rosin. Bat tery- powered light turns mi automatically when the loaded ,'jbmin slide; carrier is pushed into viewing position. Both I he lenses and the viewer are manufactured by Graftal lien's Guild, Hollywood, Galif. A f i ,Ahv)\k POOVi i PAVl; U ii, lit,; h:,-e . ! . resin, i .sailI t.<> give imisl. dogs a lifetime of sad* chewing, Nylabonc Corp., P. 1). .Box 721'i, Oklahoma City IP, Okla., reports Um; greaseloss pacifiers won't stain carpels but contain artificial 'hamLotie" scent that w ithstands boiling and scrubbing. .Sizes: pel ile. regular, wolf. NEW SOLENOID VALVE with body of ~ Zviad" nylon resin and diaphragm of "Viioa" A synthetic rubber resists corrosive fluids up to 100 limes longer than stainless si eel valve, claims Vulcor l>1ngin>ring Corn-, Carnegie Ave., Kcnitwortl'.. N. J. .No mefai [tatis iotteli (laid. <> NEW (.HlICkAiKII* IE,VIC RE of "Dueo" household cement prevents parts being joined from siipping or sliding while the eenienl is still wet. ''Duet)" remains tacky long enough for per lee!, alignment of parts. I lien dries fast In form a transparent, waterproof film. MOVIE SCREEN with surface of meiali/ed `'Mylar" polyester film reflects image brilliantly over wide .angle. It resists alray light so well I Hal. movies can be projected sitc.sfnlly under normal room lighting, says Universal Scroetk Co., Main Street, Clinton. Mass. Surface is wash, able, tearproof, won't yellow with age, the maker adds. ..Ah .C :s sold in powder or tablet t'nrm, effervesce in water to re lease enrhouaiion ami flavor. Mas; of them contain Du Pont "Cy Ian" sodium eyelatrate, a noo-eaioi ie. quicktlis -olving sweetener. - lll*;it;p. .M.H AM \RINK. pink, blue, veil,nv ami -ml artnew colors lor "'Ey rex" nylon (ikmu-nt, lonnerly-available It) brush mamHueltireis only in black or while. -Move is expected Io add style as a selling point in household personal and industrial brashes. .1.1 Curtain call for coaled fabrics .-I ne iv slope fitrlain material anil ryclorania rtulh am icinnhip applause from sehtiol users Two coaled fabrics designed osj>ecially lor school audilorimvis arc now ollerlng;; of Du Coni.-!! Fabrics Division. The lirsf, "Tontine" Hame-resistant vinyl stage cur ia in materia', cornea in five colors turquoise, giv.cn, beige, bronze and red-..cm bossed to look much like woven ma larial:-;. All .`-hades have whal. is called a Jeweitoue finish that gives them a soft, rich sheen. Made of' glass fabric coaled wild vinyl resins, flic material doesn'l need h i be lined Hoi It sides of if are l.real.ed In stay dry, minimizing dirt collection- Smudges arc easily removed with soap and wider. Tlui i'abrie's flame resistance is permanent. In service it retains its (.ensile strength, tear resistance, color, pliability and orig inal dimensions. The second product is `'Tontine" flame-resistant vinyl eyclorama material. I IT used at the sides and back of stages and comes in gray or beige. Like flic stage curtain material, iiV's permanently llame resistant; if also drapes well, holds its dimensions arid retains it color. " 'Tontine-' is .suffer and more easily draped than coated fabrics ordinarily used for stage curtains," says John Clecktier, whose Baltimore firm supplies curtains to schools. '`It's easy (o fabricate, loo." 'Phe two new fabrics join "'l'online;" flume-resistant vinyl drapery material, already well established in the school business. This opaque fabric effectively darkens largo window areas in classrooms and auditoriums used for audio-visual work. It comes its four colors- green, gray, beige and brown-- and four embossed designs to comple ment classroom interiors. The family also includes the well-known '`Tontine" washable window shade doth, available in a range of 15 colors; a shade cloth for audio-visual rooms; and a coated canvas fur heavy-duty assignments. The Du Pont Fabrics Division, Du I 'out Building; (iiKM-l), Wilmington 1)8, Pel,, has swatches and data on all of these materials. ^imkvn. \, \ .. Hiiiool rliosi* "Tout I f - a .-av for hliip* iriirlmn* St ill \ ins h*<i fahrir Inis Imlum! Immh T' |mi 1 t#Tii, --/fol" at tuns a r<- heipinti pul intlusli ial promises in Imlanrr and sitppiy'mp ras cat-chars H'ilil sonic <it`ct<irtll\ hot juris 1, \n atom s inirlciis-- ct)iii|M>Ki`il iikislh o( drnsrh parked |iro|.in.s ami neutrons, can l>e timdr radioael h< f>y lioitiliarilmi Hi iih a mail-,-tinted re-ulntu, a.-' id/otc. Orbital electrons. linked rliicllv villi (lie atom's chemical art i\ it v. Mould be ~rs real Imndrcit yards Irnm s im-Ii a great k magritieil micleio :w 1 Ha Invisible lirt `1ml spots" are paying otT in a big way for industry. liadksisotoiM'H- I ho oi u*n*y' - parked, un stable atyms produced h;v uur nation's radiation program...lake on more at. tractive personalities almost daily. AI the moment. Du Pont plants and laboratories are using them ns sharp eyes to sue through metal con tainers and process materials, as signal (toner::tors to oca to points deep within vessels, and as spies ii\ chemical proc esses. report in;: on Ills: ini imacies of tv; <( ions. Kadi new use .seems in breed still more lor I he versa i ile materials. 11 arlioisotopes, of course, existed long before the atomic age, hut they'sv taken on now seumlitir signilicaiH-e since. Bask `ally, these off-balance ele ments are formed when normal atoms are disturbed by oul side rad infirm. Since time began, cosmic rays and Other forces have done tin' work of disturbing and ;dtoriit)j the nucleus of the atom. 'Phis natural process is text remoly slow, of course. a' id radioisotopes thas formed are tew and isolated. For years, un noticed by anyone, they radiated mi nute amount s of energy in a struggle to reestablish their stnoilh y. With the advent, of ihe* atomic theory in IdlKl and Uie discowry of the forces of ra diation in 1 SfHl ihough, interest in them grew. When matt learned how to smash atoms, he established his tirsl. reliable supply of radioisotopes. 111.: wasted Hi de time in put ting them to product ive its*'. In the laboratory, these hoi ele ments help the agrirultimc chennsi trace t.ne mystery of plant life, they reveal to the chemist the rneehanisms uf reactions. they uncover for the :*-.*- searcher in chemical eiigmcwmg t to hitricacies of reaction kinetics. they 2, 'tin* lien I p till 11 Hr* iii rliiir"r. su e ncillicr ;i 11 railed lint* lis`)| I*\ I fit* rlrrS i ir.'i! Inrccr, If makes ils u:h inirih Id llir imrli-us. *,%here it ran la* ahsorbril. 3, Hill taking on tliir addrif ina.-s llirous (lit* ms'lrits onl of Iialancc ami it xibnili*' >. ioieiil tv. gh mg off cnergs in tin* lorin ol railiation llmt mar iinlmle an cirri mu , . . unlock snntc of {ho physiological secrets that challenge the mod io,*i I rexen rehi *r, I rt manufacturing, they churl the course of reactions previously buried deep in pipc-tittes mid pnveuin* v c h h iiJs . This ability of "tracer" isotopes to mil what'n going on has permitted improvements in tin.* gasoline you use and in thousands of other chemical product;- .you sec every day. AI I )u Pout's (fhauilXM'M Works in Now Jersey, for example, the use of radioisotopes yielded vital information on flowrates, dispersion and distribution for the men who llnti![jfat*1.11re tetraethyl lead antiknock compounds for gasoline, 'fliis information was translated into process improvements. As (.racers, the radioisotopes play ,*i dual role in re action;-; they're sent io report, on. Since they react, rlieinirally in the same fashion as non rad inactive atoms of the sum*? elermail, they enter into compounds and eliminate the <l;mgcr of contaminating the process with foreign mutter. But since they retain l.hcir readily identified emissions, they ran lx; followed precisely by observers wit h sensitive detection instruments. Radioisotopes produced from various elements have specific characteristics...different kinds of energy emis sions, did'ereiil. levels of radiation, different, life spans. 'These features permit, certain and rapid identification. 'Their most, significant application ill manufacturing is in instrumentation and measurement. "Because the speed and si rongl h of the rays broadcast by a radioisotope can he calculated so exactly, the thickness arid nature of materials tin* rays penetrate cun lie read with astonishing accuracy. Measurements accurate to five fen-thousandths of an inch, for example, are possible with a radiation source and detcHor ;irraiigeini-nf. used to control thickness of vinyl sheeting produced at one Du I `out location. 'The instru ment. furnishes the operator with accurate, quick "pro files" of tile product, jriuil,l.ing improved qualify control and higher .yield from the process. Instruments like this also play a part, in scanning process pipes and vessels to check for inlerruptioiiH in How. Observers can measure the btliid-up of scale in a pipe, for example, as its opacity to radiation increases. The fut ure for radioisotopes in industrial use is "louk- 6. ni,ek<i,.,,>: am! drm--.it, nf a iii,'lien,'il dcicrniiiN* uehicnl l r.'Nlialiiu! jiashitiy Iliroiiyh il, I )m- result; Hu Tout ' an I'lMtlml lilnt diickiicK.-, Io nil liin I dUMMl at nn inch. 16 7. I fd rHri> I Ik * lifrnl tram tii n plaiii or ,iiiilii.il- till* run frit ^hire I ho I rin-fr "Jm !<>- 11 j anti learn nniiv r ImmiI (lie prones.^'s ol "ninth ami (li-a-,-if>e. 4. ... like this. Till' scientist's tools eat! deleft tilt* radial inn vlierei er i- ueli emin-e itl<mu- arc located. anti Kti tilt' radieaclive alums beeumi* Icll-lale " It accrs. 5*. \\ lien a rudinuet i\ r atom, ah mg u itli el x-i ideal h iden t itail In i: oonrndumet u < tan--. c h i-t :. mto ehrimca! ctntiltinaliiMi. il *"broadcasts ii> toeapor,. ing Taetier every day," in the words ol' one Du I'mii engineer. "There's no reason why wit can't apply them io many more problems oi' How measurement, fluid analysis and process dynamics- especially in areas where present materials or devices can't be used," lie says, Safei.y, of course, will be a major eonsideral ton of future users, just as if concerns fhu.se using radioisotopes today. 1 tadiathin can spoil danger if proper precautions aren't observed. But no inj uni's have been reported in connection with radioisotope use through all the years of f lu J'ont experience. T1m; hazard is comparable with that of many corrosive or poisonous materials used daily in chemical plants with safety. The Atomic .Energy Commission, which sells flit* materials to industry, requires that custodians of the hot elements lx* trained in handling and storing them, Du Font regulations covering their use are even more stringent. The rules demand safe isolation of radioactive materials, plus full instrumentation and protectivc devices f.o warn those working with them when a Hazard exists. Another aspect of radiation usage massive doses ol' high-energy rays.-, is also of eontinuing interest to Du Font scientists. The story of t his high-energy use is erne for the future in terms of industrial ap| lication, but it's wry much a present activity for lhe men in many com pany laboratories, Du Foul's Central Research : Dpi., one oi' the lirst industrial groups to experiment, with high-energy radiation ill chemical research, is examining ifs ellivl on chemical reactions. High-energy bombardment may reduce con tamiiudion in some products, produce familiar materials b> new routes, modify the properties of many existing products or lead to entirely new ones. To study radial inti's etfeci on reactions. Du Font's Engineering .Dept, rccenily opened ;i Radiation Physios Laboratory. I lore massive accelerators alto doled ingeijiiip men! can reeord what happens inside a material wlicit it's peppered by elect rims. Oilier depart.iiieitfs in the com pany are probing the efleets of radiation on man-made libers, pi,as lies, films and scores of oilier familiar items. In short, this force that modifies atoms with such speed prim list's to rearrange out' Cut tire as well. 8. In closed or iiiaeecssililc eoitiairicrs, sensitii c instru ments e:m deice! tin- !c\ rl to which a liquid has risen .mil. with uiher cs[sn|uiieis!. control the hat!. 37 9, .Measurement ol minute w earing is aunt her ji >ti ter raihoisetojK-s. i ten*, particles <>! me! ui n oral ml a "diet pi-foii ring i!.i! I her in home.ml urn! are ''counted. it! HB, D .fat1 mfc. HIM" JM > 1. ll's one ifial means mwc new jitbs for resiilenf.s of the Shenanthmh f- alley ami <1 new hind of plastic film from lieynaltls (IROTTOkH, VA. An eng inter's dream of pipes, valves arid tanks is the la last, outward .sign of" the two-year metamorphosis of this (.own'.-, only industrial jilaal. from idle textile mill l.o busy film (in lory Tht: maw; of equipment, rising beside tin; Reynolds Metals Co. plant oil (.he on (skirts of town, also marks a new approach to making plastic films. Here Reynolds has just kiunehed the firs!, commercial production of high mo let* ular weight polyvinyl chloride film using iJn Rout tetrah vdrofuran as (.lie so Is-rail.. Reynolds' 1'laslics Division acquired this ( mottoes plant two years ago and converted it. l.o prodoelion of poly vinyl alcohol a nd I 'VC (dins. Several new jobs were created in 11ic process. Then company officials sol out lo augment tin1 two original products with a now film having superior physical properties. They f urned to straight high molecular weight i'VC resins u> tlie logical starting point Cor the particular kind of film they had in mind. It takes a unique solvent to dissolve these res ms, and that brought DuPont fetrahydrofunui (THP) into flu: picture. Reynolds researchers found that TH F dissolved the resins readily and completely at room temperature to form high solids solutions. Subseep lent pilot plaid, trials showed that the solvent also permitted an increase in production speed. This plus factor clinched the choice of Til F for the new process. Tlie engineers dream beside tins local plant is tin; out door evidence of Reynolds' sueee.SHlul development, pro gram, Other specialized equipment-- mixers, easting mu ch i lies, ovens, automatic controls...is inside the plant. The unit successfully recovers more than f)5 per cent of the 'I'll F for re-use. Alter the film is cast oil a stainless steel belt and is moving through drying ovens, the evapo rated TUP is carried by a heated nirstremn to one of two large steel tanks that operate automatically in alternating eyries. While THP is plucked from (.he airst-reaiii by bods of activated carbon in one tank, previously collected solvent is being steamed out of tlie carbon in the other. 38 Once reclaimed from the condensed steam, itV ready for llie return trip to dissolve more renin. Technical specialists from t Hi I'nnt'rt Kleetroohemu-als Dept., which nm no kudu res toLmimiroruntn, were able to help in I he design of this (Irvins' oven si ml recovery equip meiit- They supplied Reynolds with information on (lie properties of the solvent and methods for its recovery. "We've found that Tl HCs high rales of evaporation and diffusion enable us to cast I lie film faster limit with other solvents," asserts 11. K. Burkhart, the lulwntfory director, "This means mom productivity per unit, time a better film at less cost." In addition to thin new "Hev no Ion" straight high moleeular weight I'VO film, Reynolds still turns oul films mack* from lower molecular weight vinyl chloride polymers and copolymers. These are hid up used widely lor such applications as tape bandages, home wrappings anti com mercial packages. Tint company's poly vinyl alcohol film also lias wrapped up a market, for itself. Made from Du I'out "K-lvanor' polyvinyl alcohol, this clear, fnngii film is used for t ho man ufacture of airtight hags lor vacuum molding and as a mold release in the manufacture of articles made of reinforced polyester resin. Still under duvelopmcnl is a water-soluble polyvinyl alcohol Him that, can he used to package pre measured portions ofstieh ltialerialsas household detergents and dyes. Drop the package; in water and both film and product, dissolve. Complementing these earlier products. Reynolds' high molecular weight I'VC film lias greater strength and clarity amt (non; resistance to soiling and abrasion, plant manager Dick Chamlkirlin explains. And Woody Vogel, general manager of plastic market sales, adds, "This new product greatly strengthens our competitive position." Sprrialh designed unit i-rs Vi |iiT rent of I 111' ii.-od lo di-sub r 1A C resins, returns it In repeat In- cycle. ...Tilt: POim <;i!KNt: have developed a giant wine "cask" to .solve a storage problem? N<;o|iivno-eoaU'd nylon balloons are inilafi-d over I'oundatioi i rings mid spnwe* 1 wifi> iimerele. When rehthnved concrete shell drii's, balloon is delisted a no re-used. Mach tank holds 7b,<>00 gallons. . , . DU PONT It YDS are not'd to color nylon tisli nets gray or green lor .lapatie.se Its he mu-it? Seems these shades bid id tv ell with ocean water, leading I he UI isuspect ing fish to their doom via n one way voyage to - lapan. , , . Cl'MKMT Til IkS in I -'illiunl green and bln*' are beau tifying Latin American buddings? Du Pont Past Blue DC and hast Creen I )t1 remeiil colei's are used f'*r their re sist mice hi fading in tropical weal her and 1 localise t hex weaken I he tile. . . . DC PONT `T'RKON" refrigerants and propellents ;uv shippi'd to more than UK) rout dries and territories i hnnigh out. i lie world?' Anyone setting out to call on alt these eus turners would take more than two years to make a singt' round...even if he spent an average of on.y four days in each country and one day traveling to [lie next! ... A COPKNUACKN XL IT! MM Al< K KT plays soothing music for (laylime eosliuuers, then I loosi s t lie tempo to march lime a half hour before closing to hurry shoppers on? Supermarkets base iaketi hold sjk*eilily ill K-urope a id Hold h America, spurred by visible packaging with such materials as Du Lout cellophane, "Mylar" polyester film and film of "Alai lion'" polyel hyleno resin. 3f WHEN PAPA PEDDLED POWDER The exftlosirex salesman of 00 rears ago neeiletl n litre emilbimitUm of finesse and fortitude, recalls (his (laughter of a successful <me Hy KhKANOK HICK LONG My father, the late Kdgnr Charles Hire, left me wilii many warm memories of my childhood. Ktd I hie fondest of all recall I lie times when, in file early evening, he would tell me a haul, his earner as a dynamite salesman. 'Flu; stories I liked heal, were of his trips l.h rough Texas in the J880k , "90h and the early 1000b , selling the Do Pom. explosives that would help open road.s, drill lor sulfur or mine salt. The fact that, my own hither had ridden staKeeiiso]ms through this vast pioneer country was esjM-ieially exi Ring; to a small <*hikl in the World War 1 era. When Ihi* Sphidlet.op oil well came in (.here was a great race to drill. Father ret ailed, and (.his meant the The lair Kdgur Firr in bill ihiyi. as a powder snlr.mum. ; `; i nliirr i : ' \ : ! . :,. i .i,, I:: a >. . : : ' )! i I: "! I. ; !,r; : a bronze |.a[MTivri h I :i! a I t h.iHijnunr glasses of si ml. sale of mure dynamite. He told of the time when he was forced to wait overnight for a stagecoach to a new oil de velopment. where ho hoped to .secure a large order. Thai evening he spent in the company of two friendly strangers who flattered him by their attentive interest in his busi ness. 'File next morning, when Father ixjarded the coach, his new friends were nowhere in .sight. A few miles out of tow'n. t he coach mysteriously broke down. While the pas sengers fretted at the delay, who should pass in a hirer! rig but 11is two companions of the night before! They waved sympathetically as their horses paced them rapidly along the road. When Father finally reached his pros|>eelive customer, the important powder order had just been given to a rival operator represented by these two young men. Near the town of Blue Island. 111., were the wonderful Du Font, stock farms. I lore Uncle Fred Rice bred and trained mighty draft horses for t,lie job of pulling Du I'onf explosives wagons. 1 liked to watch these great horses, marveling at their sure-footed power on steep grades and rough roads. I learned early that not all magazines are the kind you read. Old Joe Szweibaid managed one in Summit, 111., where Du Font dynamite was stored. My father spoke wit h such respect and admiration for .Joe that my romantic imagination endowed this rugged man with all the bravery of a story-book hero. cpsrmii'.its iim-y.i.i f m KiriMMiit In the early 1.900s a favorite Du Pont practice was to invito large parlies of customers for hunting expeditions in the North Woods, My fattier was often assigned the pleasant duty of arranging these parlies, which traveled on special trains. Although he rarely accompanied them, the customers were nul. unmindful of bis efforts for their pleasure and. on returning, they made our autumn dinners bountiful with their gifts of quail, venison and pheasant. On the rare occasions when 1 visited my father at work in downtown (lliicago, 1" was vastly impressed with his business world. His handsome' office, overlooking Lake Michigan, was hung with lithographs and paintings of champion hunting dogs. On his great mahogany disk a row of sparkling champagne glasses held samples of shot and bullets. I was especially attracted in the glass-front cabinets with their sample vials of gun|x>wdor. Perhaps my moat pleasurable recollection is of my father serving as master of (.he fireworks display for our community Fourth of,Inly celebration. Because he was a powder man. Father was entrusted on (.!its all-important holiday with tile power to transform our everyday world into a night, of enchantment. Always, but especially on these occasions. 1 was proud of niy father and his profession. Ft. warn glorious to be the daughter of so brave mid important a man. 40 with MR-8 keeps your car's cooling system Chemically Safe from rust and corrosion + CARSPITAL+ When a car develops cooling system trouble in winter--it can be either from freezing or from harmful rust . . . that builds up in the narrow tubes of the radiator and on the walls of the cooling system and interferes with circulation. An inside look at this system discloses that it's clogged with rust particles. These can cause dangerous overheating. That's the reason leading dealers pre scribe "Zerex" anti-freeze with MR-8, Du Pont's special chemical rust inhibitor. MR-8 protects your car's entire cooling system. It stays Chemically Safe all winter long because MR-8 reacts . . . with the metal surfaces of the cooling system to form a chemical armor against harmful rust and corrosion. What's more, one filling of Du Pont "Zerex" protects your car all winter. It's GUARANTEED -- or you get refills free at leading dealers where you see . . . this sign! Look for it, and get Guar anteed Anti-freeze Protection with Du Pont "Zerex". Be Chemically Safe all winter long. Act early this fall! ---Better Things for Better Living .. .through Chemistry Recognize this green and yellow tank car? Hundreds like it carry Du Pont tetraethyl lead from manufacturing plant to oil refiner. The antiknock compound, which makes possible the powerful, knockfree gasoline in your tank, has been made by the Du Pont Company for Sf years. Almost anywhere you go by car, you ride with gasoline made better by Du Pont TEL. Highlights in the history of tetraethyl lead development 1922 Du Pont scientists cooperate with General Motors personnel in developing manufac turing process for tetraethyl lead. 1923 Du Pont begins plant production of TEL by ethyl bromide process. 1924 Du Pont manufactures first commercial quantity of TEL by ethyl chloride process, assumes responsibility for producing total TEL requirement of the oil industry. 1940 Du Pont begins to sell TEL direct to refiners. 1953 Du Pont adds new TEL unit at Chambers Works, makes substantial increase in man ufacturing capacity. 1957 New Du Pont TEL manufacturing plant goes on stream at Antioch, California, further increasing capacity. ... New Du Pont TEL terminal to serve Gulf Coast and Midwest refiners goes into operation at Beaumont, Texas. ... First tank ship to carry tetraethyl lead in bulk, Mb' Peirochem. begins voyages be tween Carney's Point and Beaumont. Petroleum Chemicals Division E. I. du Pont de Nemours & Co. (Inc.) Wilmington 98, Delaware Tetraethyl Lead and other Petroleum COUPON!) Additives BETTER THINGS FOR BETTER LIVING... THROUGH CHEMISTRY E. I. d u Po n t d e Ne mo u r s & Co mp a n y (In c .) WILMINGTON 98, DELAWARE RETURN POSTAGE GUARANTEED