Document jgp6maEEwxqKymwo26GLr2kXR

oa: J, 7, Hunn Chloogo Cleawland 9. B. Coolldgo, Jr* AuxlllsrlOO bNUtk lowwabwr 11, 1953 Lithopan* - du Foot AttuM b a mil krNhv* ulttu to suable tki ulmn to #loot more intelligently tho IW llthopoao for giro* aatth for 4a Boot'* llthopoao, ond olio Outlining Briefly oaoe of tho roin--oiod oheagpo thot ohoul4 ho ui*, boiod om our dloousoloa ot Coffoyrillo. k detailed report of thli mooting ot CoffbyTllle ud tho rlolt ot du Pont will bo nods ot o liter dote. Za tho eoontlao wo ore going ohood with one oxporlaentol work both oo regards o noil pleat hotoh tad laboratory work, Purthoraoro, wo oro asking o ooroful ooaporlooa of du Peat's llthopoao end 9k llthopone la tho light of prooont production to whet dif foronooo oxlot both la flot potato aad oaaeolo. The on pool fomulo io bolug ueed not oo auoh booouoo there lo ooaoldorahlo uaogo of llthepoae for thlo purpose, but largely to bring out tho plqrwleel difforoaeoe la tho two plgaento with roopoot to hldlag powor* du Peat's lithopoaoo hoow olw^ro ohewed ease high, dry, hldlag; properties whleh wo hows tried to oroid la oar llthopono, portioalarly for use la flot points, so thot o bettor eaouel hold out would bo obtained. Sines usage hoe ahaagod la the loot few yeora possibly wo ooa mow lneerporoto aoao of thooo high* dry, hldlag propsrtloa la our llthopoao without objsotloa. This would oho* up our llthopoao to bettor odvwatogo lm flot point ot aaoo laoroooo la porosity. CEAiff Att. SOI JTO B1 cro 9K Jn C# B. Adaao -- Mineral Products Eobbrotory F tD NOV 1' 1953 AUX.RES.OEPT. 0007-SWP-043751 LITBOPONB SW GRADES VS. DU FONT SHADES A large number of inquiries hare been reoeived recently la regard to what SW lithopone should be reooramsnded for a given grade of du Font's lithooone. It Is not always easy to mate an Intelligent reoomemndatlon In view of the feat that usage oey not be stated. The problem is further oomplloated by the faot that in most oases no given lithopone manufacturer will have exaot matches for the given grades of lithonone produoed by- another manufacturer. Same grades will be olose, others will be quite different, with eaah having Its mn desirable properties. The laboratory is in the prooeee of studying the relative pro perties of SV7 and du Pant's llthonones in order to be able to answer inquiries more intelligently, and in order to determine whether oloeer matches are desired in some oases. Usage and consuaption should be con trolling faotors in the latter oaae. Radloal changes in general in our own lithoponee are undesirable and no ohamges should be made that will disturb the statue quo of oustomers now satisfied with SW lithopones. In some oases we do not have exaot matches for a given du Pont lithopone. Usage, however, may indicate that one of our regular grades will be a satisfactory replacement for a given oustomer. In other eases it may bs necessary to mate a new grade to satisfy the oustomer. A good example of this is Ponolith HR-8. This is s non-reactive lithopone with very low tino oxide content and low oil absorption. We do not have an exaot matah, but probably In aary esses Sir's Fermolith 20L (selected for low reaotivity end low sino oxide oontent) should be recom mended for trial. If extra low oil absorption is desired try Fsrmolith lOLL. Ponolith HR-8 seems to enjoy relative large sales. Our plan in to mate a lithopons comparable to this. Simple* should be ready for distribution in the not too distant future, as a trial rvm has been scheduled at Coffeyville. In the meantime try Fermolith 2GL, aa suggested above, on the basis that if this isn't satisfactory, a oloeer matah will be available. We do not have aatohes for HC. HCW, and HO-J types. Laboratory trials are scheduled for the HO-J just as soon as ths raw materials are received, a deoistoa will be made soon as to whether we will attempt to mate the HC end KTW types. Some additional equipment, already approved. Is required. Until matches are available, the salesman should us* with dis cretion the following table as s guide in recommending the proper Fermolith grade for a given Ponolith grade, keeping in mind that usage may indicate in some oases a grad* other than the on* that more closely matches a given type in physical oharaoteristioe. 0007-SWP-043752 0007-SWP-000127102 In using the following table it should be kept in mind that du Pont, like SH, uses a dual coding system* The letters pretty well Identify a given grade, and the number following the letter oaa be ignored. However, the numbers indicate the relative consistency pro perties. The higher the number the higher the oonaistenoy. The EL and IA grades have pretty well lest their signlfioanoe. Originally the former meant enamel grad* and the latter low reeotlrlty or the regular grade. It will be noted that there are two EL grades -- one 112 end one 133, The 112 gives low oonaistenoy and the latter medium consistency, whioh is lower in general than 1A-1U2. As a guide the following key oan be used: HR - Hon Reactive EL - Enamel IA - Regular grade HO - High oil or oonaistenoy HO - High oonaistenoy, high dry hiding H - Hater dispersible J - Soap treated In some oases several grades are listed for trial in finding a satisfactory substitute for a given Ponolith grade. In general, the first listed should be the oloaest matoh, but the others probably should be tried in order in oaee the oustomer is not satisfied. In general ST! lithoponas will show lower oil absorption than the corresponding grade of du Font's llthopone. Consistencies, however. In most formulas will be oloser. Do not use oil absorption to predict the oonaistenoy properties in paint exoept on e rough basis. 2- - 0007-SWP-043753 0007-SWP-000127103 Du Pont Ponollth NR-6 n r -8 EL-112 EL-133 LR"lll2 um-116 h o -153 HO-J HC-lfll HCW-lflli November 10, 1953 She rwin*Wi 11i ana Pa mollth 20L 10LL 20L bQf UQl W-L21 Bird 6QH No match Try W-320 Try W-L21 ff-560 W-ij20 W-320 Remarks Seleot 2QL with low sino oxide and low reactivity. Use where very low son' sistancsy is important. Kay bring these closer together. Soap treated. Labor atory trials scheduled, No close match No oloae metoh 0007-SWP-043754 0007-SWP-000127104 The following data on Ponolith lithopone are taken from dvi Pont'* Nhlte pigment Booklet* and is given here In the hone that It will prove useful la suggesting a Permollth grade for a given Ponolith grade. "FONOLITH" Zlno Sulfide -- Bsrlun Sulfate Pigment Lithopone nay be described as an extended tino sulfide pigment* elnoe it Is composed of over 20$ sino sulfide and 7 to 11% oreaipitated barius sulfate, the "PONOLITJf' line of lithopenes inoludes grades of pigment suitable for any use to whioh lithopone is adaptable. Tha con sistencies range from very thick to very thin* Reactive as well as nonreactive pigments are included. Many of the grades of "PONOLITH" are designed for oertain soeoiflo uses* suoh as water paints* enamels and flats. All of the "PONOLITH" grades* excepting a few designed for sneoial purposes* ars characterised by superior fineness and exoellexrt texture. These properties oontributs to ease of grinding and* in enamel and gloss paints, they assure high gloss and long gloss retention. The EL grades are particularly noteworthy in these reaoeots. n o r ma l g r ad es o p "p o n o l it h " The normal grades are all fine-textured pigments suitable for use in all types of products inoluding interior and exterior paints, linoleum* felt base floor covering* rubber, leather finishes* textiles and printing inks, "PONOLITH" EL Grade 112 Paint Consistency 70"9 K.U Grade 133 Paint Cone latency 0-100 JC.O. These two grades are enamel pigments of generally superior oharaoteristios. ffhile they oarry only normal sino sulfide oontent* they have great whitening power whioh overcomes to a large extent the dis advantages of dsrk-oolored vehioles to yield exoellent film oolor. These pigments have remarkable oolor retention properties in baksd ooatlngs and minimum yallowing with ags in air-dry enamels. They oontributs to the brightness of tints In oolored paints. Ths low consistency of these grades of "PONOLITH" permits higher than normal pigmentation in enamels with resultant higher opacity* aooeptable consistency and maintenance of glosa. The grades differ from eaoh other primarily in consistency* and s ohoioe between them will depend upon the body desired. 0007-SWP-0437 55 0007-SWP-000127105 "TOKOLITH" lR Grade 1U2 Paint Consietanoy 100-110 K.U, This is an all-purpose pigment useful in flats as well as in enamels. Its properties are similar to those of the EL grades although it has a somewhat thiolcsr eons latency and is the alternative ohoioe if EL gradeb are found to be too thin. "POrOLITH" HD Grade 153 Paint Consistency 115-125 X.U. "Ponolith" HO is a thick reaotlve llthopone used widely Id heavy-bodied flat paints. The consistency grading given above applies to non-reaetivs vehicles. In reaotlve vshioles the eonsistenoy my be somewhat thicker. "Ponolith" HO should be chosen if a thloksr eonsistenoy la desired than that yielded by "Ponolith" LR. "PONOLITH" NR RON-REACTIVE GRADE Grade 6 Paint Consistency 85 I.TJ. Maximus The NR indicated "Non-Reactive". This is a neutral and nanreaotive pigment with a very low pine oxide content suitable for use with vehicles sensitive to either sine oxide or pigment alkalinity. Though of thin eonsistenoy, it serves to "shorten" paints that have too muah flow when made with more alkaline pigments. "Ponolith" NR is a very useful pigment la this resoeot. " f o n o l it h " l r -w MATER DISFERSIBLE GRADE Grads 116 Paint Consistency 85 K.U. Maximus Water Absorption 21-26 Thia nigment la a thin oonaiatenoy, fine-textured product treated for easy dispersion in aqueous madia. It la oharaoterized by extrenely low water absorption. The water absorption range shown above indioates that 100 parts by weight of pigment are reduoed to a flowing caste with only 21 to 26 parts of water. Simple mixing in a water vehiole gives rraotically complete dispersion and freedom from aggregates. "Ponolith" LR-W is used extensively in emulsion paints, dry powder and paste oaaein paints, leather finishes, textile finishes and similar oroduots where ease of dispersion and low water absorption are important. -20007--SWP-043756 0007-SWP-000127106 HIGH FLAT HIDING GRADES High flat hiding grade* of "Ponolith" are outstanding pigments for msximun hiding Talue in flat finishes. "PONOLITH" HD Grade 181 Faint Consistency 125-135 K.G. "Ponolith" HE Is a thlok oonsistenoy, soft-textured pigment for us* In emulsion saints, dry powder and caste oaseln paints, oaloiooater flats, wallboard ooating oomnoaitlons, oleoresinous flats, shoe oleanera, textile ooating, and other applications where maximum hiding rain* per unit of ooat is desired. In the field of emulsion paints, a choice oen he made between thin consistency "Ponolith" grades, such as "Ponolith" X"Vr or the EL grades, and high flat hiding grades like "Ponolith" BC. Generally speaking, with proper formulation, the thinner consistency grades per mit realisation of maxlmua wet abrasion resistance. Howerer, an enormous advantage in flat hiding power together with aatiafaotoiy *t abrasion resistance and large saving in oost oan be aohierwd by use of "Ponolith" BC. The consistency range shown above refers to oil paints and has no sigiifloanoe for emulsion paint usage other than to lndioata that this la a thick consistency pigment. "PONOLITH" HD-W Grade l8li Hater Absorption 35"ii5 This grade is identical with "Ponolith" HD except that it is treated for easy dispersion in water and wnter-eontalning compositions. This treated pigment has advantages in certain emulsion paint formulas because of its easy mixing, improved dispersion and its contribution to emulsion stability. In some formulae, the hiding msy be lower than for the untreated "Ponolith" HC. The following figures give an approximate pioture of the econ omies that oan be realised with suitable formulae of water vehiole paints by use of HC. Relative Hiding Power Per Unit Coet Thin Consistency Lithopone---------------------- -- 100# "Ponolith" ED-------------- ---------------------------------- 120-130#" 0007--SWP--043757 0007-SWP-000127107 GRADE DESCRIPTION AND USE Relative Conaiatenoy la Oil Flat-K.U. Oil Absorption! Lbs. Oil/lOO Lbs. PIpnent HC-181 High dry hiding for lnoreased value per unit oost; for emulsion, oaseln, oaloiooater and flat wall paints! for wallboard end textile ooatings, and shoe oleaners. Hid ing power value per dollar In water systems 120^-ljOJl of normal llthopone. 125-13? (Thlok in water sys tems) 23-2U B3-W 18U Similar to HC-101, but treated (Think In to promote ease of mixing and water aya- dlspersion in water systems. terns) Not reoonnended for oil paints. Water absorption 35" ii5 lbs./lOO lbs. pigment." 23-2U pH ?-l0 9-10 Novenfcer 10, 19?3 5- - 0007-SWP--043759 0007-SWP-000127108 "FONOLITH" LITHOPONB PKMENTS (Containing over 20% Zino Sulfide end 70 to ?l Berlin Sulfate) (Bulking 0.02792 Gallons per Poind) GRADE DESCRIPTION AND USE Relative Con- Oil Absorption; aietenoy in Lba. Oil/lOO Lbs. Oil Flat-K,U. Pigment pH EL-112 General-purcose enamel grade applio&bie to all types of interior and exterior painty linolet*, felt base floor covering, rubber, leather fin ishes, textiles, printing ink, etc. Pine texture, easy grind ing, low consistency permit ting hieher cigrentation with superior gloss and gloss re tention and high whitening power in dark liquids. Choioe between EL-112 end EL-133 de pends on consistency desired. 78-66 11-12 8-9 EL-133 Same as above 90-100 13-Hi 9-10 LR-1U2 Similar to EL-112 and EL-133, but slightly thlokar. Useful In flat wall paints as well as In enamels. 100-110 15-16 9-10 00-153 Thlok consistency,reactive grade applicable to heavy bodied flat wall and gloss paints. 115-125 16-17 9-10 NR-6 Especially non-reaetlve grade designed tor use with vehicles sensitive to pigment alkalin ity. 85 max. 11-13 7-6 iR-W 116 Speoial thin consistency grade treated for ease of dispers ion in water systems. For emulsion and oasein paints, leathor finishes and textila coatings where easy dis persion and low vehiole ab sorption are important .Fater absorption 21-26 lbs./lOO lbs. pigment. 85 max. -U- 11-12 9-10 0007-SWP-043758 0007-SWP-000127109