Document 44vEpKeR1zamv45wBRQJyQoEN

v -1; -I-'V-"r V r?' X-', AJilED RESEARCH MBOMTORXES - Report of .Investigations For the Month of April,, 1946 M. VAS LOO fig- Studies in Hat Well Paint PonmfLation Flat Wall Paints. 7 .j . : - . Work -was continued during', the month to improve the brushing properties and reduce the after-bodying tendencies of the lithopone S];'formulation for Flat-Tone White. ' In addition to' certain difficulties : '^iejperienced with the vehicle CV 7Q14j, high initial bodies and definite Tafter-body pointed toward reactivity in the 461 L lithopone used. . lilbalith #14 produces a much loner.initial body than 461 L and shows; . only a moderate increase in body when nsed in the lithopone formula-- ' .'V- ' tion. The pigment division has been informed of our results and an 7'47-^: 'rinevaecsttiivgiatytioonf, is under way to .determine the cause for the increased,.: our 461 L7 Work will be continued on this problem. ' Samples of the new Pcintercraft Paste Paint - OJ 810 J and \ 1 Reducing Varnish CVR 452-2 have been sent to Cleveland for test. The paste has been formulated so that it can be reduced with thinner or . j varnish to produce a satisfactory flat,- semi-gloss or gloss wall paint as well as-an enamel undereoater and wall primer and sealer. Samples of #100 and #140 Soltrols were submitted by the Phillips Petroleum Company for our inspection. These materials repre sent the best development of low odor thinners that have been tested . in Cleveland. Hie samples were compared with Shell's 8296 Special Mineral Spirits and Regular Base #L, which represent Shell's deodorized types of thinners, in the` Flat-Tone Rhite formula of 8-28-45. The spe cial flats were checked for odor by making laboratory paint-outs and by painting rooms with each material. =U'r, i*Z-K The Phillips material was rated very good with respect to lack of odor but considerable difficulty was encountered in the appli cation of the flat wall paint made with this material, due to its low solvent power (Kauri Butanol number 25.6). The flat'wall, paint made with the Phillips thinner was very sticky in brushing, then the flat was reduced with 5 to 10$ more of Phillips Soltrol 140, a definite break was evident. s=p.; -. The thinners obtained from the Shell Oil Company were rated second with respect to odor but were much more typical of our regular (348) and (5020) thinner combination for brushing and body character istics. The slightly higher Kauri-Butanol values of the Shell thin-- ners appear to be quite essential when used with highly polymerized oils and varnishes common to flat wall paint liquids. The brushing properties were not quite equal to standard. Therefore some reformu lation will be necessary to improve the brushing if deodorized types of thinners are to be used. 0007-SWP-000006883 Coat LS2 - Coat,' 3 following break points were run on thevarnishes used in making the flat wall- paints referred to abovej Varnish Used Thinner Content of Varnish Varnish Reduced . With Break Point (5880) - CVR 487;* Phillips Soltrol 140 Phillips; Soltrol 140 50$ CVR 372 - ' (348) end (3020) Phillips Soltrol 140 300 (3880)E - Cm 373 Shell's 8230 Regular Base^-l 8296 M. S, Shell's 8296 Special M. S. 25G&. Regular (3880)E CVR 372 Regular (3880)E CVR 372 (348) and (3020) (348) and (3020) Shell's 8296 Special M. S. (348) No break at 5000^ No break atSOOQjf Shanels Storage samples of Enameloid White- - Rex 710 made with c variety of varnishes were examined for seeding. Most of the samples had seeded badly over a period of two months, -with (4100) end (2945)EA showing lit tle or no seeding. No correlation could be observed between the compo sition of the varnishes and the extent of seeding. These enamels were all made with 2229 dry and 547 dry. Samples made with. Acto 450 showed the sane amount of seeding as those made without this agent. ing of Rex 710. These enamels were all made with (3109) and 547 dry, and have been in storage about a month. All showed very little seeding when EfreegsihiU. r (S1 880)E - ' . -______ . _ ,,_________ _____ Pigment slight) ate ) Anatase 1403 Titanox A ,, 1901 A L0 1901 RT " A 168 L0 2030 ' AA 2147 A 24 5 5 6 3 5' 0007-SWP-000006884 M. VM LOO - : Cont. , lfL6S Cont. - :5 " _% .. Pigment - ./; ' Seeding fl - very slight) . (5 - moderate ) Entile 2173 Ti Pure E 200 , 5 ,: 2174 R 610 ' 5 - 2223 R 110 - . 1 i ' % / 2229; " R 510 ' S r' - V:"i _ 2273 ; Unitane OR 250 6. . ': We have examined a series of Rex 710 scales containing vari ous basic pigments which rare introduced to check the drier-absorption. Formula Set-to-touch Time Fresh 2 Months Regular 10 lbs. 108 dry 20 lbs. 18 dry 6 lbs. 1128 dry 1 hr. 50 min. 2n 5n 1 n 45 n 1 n io n 2 hr. 23 min, 2 " 50. 1 " 48 " 1 " 15 " These batches have nil seeded slightly and uill be repeated using Calcium Stearate 1826 for Aluminum Stearate 547 dry. Over night through dry vras hard in all cases. A sample of Lead Naphthehate RB 1127 B submitted by the Resin Research Laboratory has been compared vrith (4230) in the Enameloid White formula for drying chriracteristics after tv;o months of storage. It uas also compared with (4230) regular lead naphthenats drier - outside pur chase^ for drying and stability in linseed oil, and in conjunction v/ith (4231) manganese naphthenate and (4230) cobalt naphthenate driers. Tra batches of Enameloid mite - Rex 710 rare made, one v/ith the .regular naphthenates and one uith CRB 1127 B replacing (4230) at equal metal content. The initial drying and stability tests rare referred to in the monthly report for February, 1946. Drying Time on Enameloid White After 2 Months Storage Set-to-touch Time Driers When Fresh After 2 Mo. Batch OJ 701 J . Batch OJ 703 J Using regular 2 hr. 5 min. driers (4250), (4251), (4232). 2 hr. 30 min. CRB 1127 B . 1 hr. 30 min. - 2 hr. 15 min. (4231), (4232) ` --Q-m M. ?AH LOO 'Pont. ffi.62 - Cont. ' Sarples of Ferro Lend, Ifcnganese end Cobalt obtained from the Ferro Drier and Chemical Conpany were compared with regular (4090) * (4091) and (4092) obtained from Mvcnce Solvents and Chemical Corporation; The driers were checked for color characteristics as well as drying properties in the EnanaLoid Bhite formula of 9-19-45 and the SHP Gloss VMte formula of 9-14-45. In general no noticeable difference in color or drying pro perties was evident between the Ferro or Advance, driers except for a slightly longer lack period for tho Ferro drier in .the case of the The drying times are reported below; - - Driers; v Under Test Drying Characteristics Sot-to-touch Over Eight Color SIP Gloss Uhite (545) - (4250) made: 5 hr. 10 iain. Batch 0J 853 J from Advance (4090) SUP Gloss Uhite (4251) - (4252) Batch 0J 854 J Advance Driers 5 hr. 5 min. f SUP Gloss Lhite Batch 0J 855 J Using Ferro Drier, metal content as above. 5 hr. 15 min. Good Good Colors appear equal. Enaneloid Bhite Batch 0J 858 J (4250, (4251), (4252) - Advance driers. 1 hr. 5 min. Enaneloid Lhite Batch OJ 859 J Using Ferro Drier, metal content as above. 1 hr. 30 min. Good Good Colors appear equal. Seni-Lustre The Varnish Research Division suggested. CV 7013 (20 gallon tall oil P.E. maleic-rosin-linseed varnish) as a vehicle for SemiLustre Shite. A number of batches have been made which have been too thin in body or too low in viscosity. However, it now appears that by increasing the (48) and decreasing the inert content wo nay be able to obtain a satisfactory sheen ?nd body for this rex. Uork will bo continued on this problem. 0007-SWP-000006886 W71 mwm .vtf- aj^SiTs ?; :; 4'. #?? *;?s? if & : ' :-5-5-/. il Va n l o o ;V '. Coht. ' f : igfc;- i- jfii?lTmt- - Figment- Studies '*}yr5i Work continues on the sfciky of .white pigment opacity factors. &j PSV: "" Paint Troe 1 - House Paint - - - '' In this first group of tests it .should he recalled that "Housd .Paints" were node using in each test a "single opacity pigment plus ' extender.'-..' .Thei: test-.paints were formulated, to" 18,000 Holley units. The _ ' p.v.Ci was held at 36$ by the addition of 20 F magnesium silicate. vr . - ' - <,t ,: : - From the above study opacity vr&ues were obtained for each opaque pigment tested, in toms of square feet per: pound at given con trast ratios. If the values obtained ore accurate, and practical it should be possible to substitute various'opaqpre pigments for each other -. without shifting the actual opacity. A testiusing HeX 471 SHP Gloss Hhite was run to check: this point. ; The standard paint was identified as EB 1428. Two paints were then formulated to give equal theoretical hiding. Using (a) the Holley index (Paint EB 1429) and (b)- the Allied index of opacity in square feet per pound dt a contrast ratio of 9355. These paints used Sine Oxide XX-503 2059 dry, basic carbonate white lead 18 dry, end sine sulfide 1538 dry as the epoque pigments.- A second pair of check paints (EB 1431 and RB 1452) were made in the same manner , pignenting with basic sulfate white lead 9 dry, 2059 dry, and Utanox EG HT 2152 dry. In this pair it was found that based on Allied units it was not possible to pignent EB 1432 to equal hiding, due to the 56$ p.v.c.- limitation, holding lead and zinc in balance. Therefore, by cal culation BB 1432 is approximately 6$ deficient in hiding. W-S 1*7- :J vxx Ti!- Test date.! Paint Ho. EB 1428 P__ig_n_o_ntation Theoretical Opacity - Allied at 95$ GR Holley Sq.ft./gal. Sc .Ft./Gal. 91$ CR 95$ CR 95$ CR 97$ CR 1403, 412, 18 17,995 577.3 - 500 430 377 EB 1429 1538,- 2059, 18 17,990 452 534 454 398 337 EB 1430 1538, 2059, 18 21,640 577,5 577 488 419 360 RB 1431 2132, 2059, 9 17,990 384 `488 425 372 ' 300 RB 1432 2132, 2059, 9 24,690 543 560 470 410 - 0007-SWP-000006887 ' V' M. VAH LOO ' Cont. fi.77 - Pont. . ^ Comparing points 1428, 1429 and 1431 as against 1428, 1430 and 1432 it is apparent that the Allied values, have node it possible to formulate paints with hiding substantially equal to the standard whereas the Holley index paints are considerably deficient in hiding* On the other hand, further refinenent of the index is indicated by- the rather wide variation between the theoretical opacity figure and that actually developed , e.g, RB1428, theoretical = 577 sq.ft./gcl. : at 93? OR, whereas the actual, hiding-is ,500 sq.ft./gal. at 93^ CR. .~. i'c - - : ' : ...; Rork on the extohderfpignent relationships trill be con tinued on house paint type "opacities. Print Type IV - Interior Gloss-Eaenels In this series of- tests enonels were node using single opa city pigments up to 18,000 Holley units ;per,: 100 gallons so long as the total pignent voluno did not :exceedf14:gaIlons. Vehicle relationships were hold constant, i.o,, the vehicle' solids were naintained at 38 gal lons per 100 gallon fomuLa. In every case the total yield was held at 104 gallons by adjustment with (348). . (3109) was used as the vehicle solids throughout. >-- - Type IV Opacity Values Opacity Sq.Ft./Lb. Dry Ho. 108 XX 592 Zinc Oxide 5 Br, 9lg CR 95% CR 955 CR 97g GR 98g CR 82.7 48.9 40.8 (34.8) (28.4) (25.3) 461 L Lithopone 84.1 59.4 1271 Anatass Titaniun Calc. 85.0. 102.6 50.9 89.9 42.2 (33.1) (29.0) 76.8 (64.1) 57.8 0007-SW P-000006888 1403 Ti02 Anatase 88.4 209.1 178.2 147.0 115.4 100.3 1538 Zinc Sulfide 86.7 137.7 118.9 99.8 (80.7) (71.1) 1897 Ti Bar HH 85.6 95.4 82.8 70.6 58.0 51.7 1901 H02 Anataso LO > 88.7 204.5 176.8 148.4 120.2 106.0 2050 T Titanox M 88.7 190.9 165.2 139.3 113.0 100.3 2132 Titaniun CcJLciun RCHT 85.6 116.1 100.2 84.4 68.3 60.4 2229 Ti02 Rutile ' 89.9 319.4 266.9 215.2 160.3 133.8 These values have not been re-checked but do compare logically with those under Type I in previous Investigation Reports.  M. \m LOO Cont. fill - Cogfca ' ' : ' Mthopoae Texture Test '- . " . : "For this stue^ New Jersey, du Pont cad Coffeyville were asked to ship us representetiTe dKigs of each of their various grades, r:-; ' indI^tix^''iiM^^6mstti>e^..Mnsidr.:enamel grade. These samples vere : received - two from du Pont, three from Hep Jersey, and four from Coffeyville. - . ........ An initial texture evaluation pas node using the Hoover miller, 100 rubs, minimum weight. Following this, paint batches were B^e m the .itex 711 formula, _ card 15, alternate E, rath the alternate pigmentation'which, calls for 560 pounds of lithopone and 105 pounds Ti Pure R 510. In the iaixing operation paste consisten cies aero adjusted to a somewhat similar range ty adjusting the quantity of varnish used. Stomer measurements were made on the . ill pastes. All of the latches were then milled over a 15" Lehmann 5-roll mill at a fixed setting. , ,. A tabulation of the data is attached. In considering the milling trials it should be borne in mind that the tests sere m in consecutive order over the mill at a fixed sotting- . The. texture of the lithopone is evidenced by the fineness obtained as well as the mill production rate. It is noted that Albcliths 14 and 806 are superior to the other lithoponeo on test. Ponolith EL 133 is similar except for a loner mill production rate. None of the Coffeyville lithopones tested can be designated as enamel grade under these con ditions of test. See chart on next page. 0007-SWP-000006889 0007 - SWP-'0 0 0 0 0 6 890 K ' TIP a? Chalking'#:v q ; ... t ' ;- of the United Color Company, reported that they use an ultx^violet lamp made, by Hanovia lamp Company for a quick \ estimation of chalking rates of titanium oxides, as dispersed in refrig- erator finishes We have simulated his tests using a G.E. tfviarc lamp without arriving'at; any classification hettreen three anatase .samples and two rutile titanium pigment samples.- ( !' #182 - Study of Inaproved Mixing and Grinding Practices ' Huomix has been found to have little effect on the mixing of Bex 42558 -- Lustral Medium Yellow, Bex 67558 - Lustral 67. Medium Yellow, or Hex-710 - Enameloid White. A factory test of Kuade X-401 and Acto 450 was made oh the alternate Bex 710 formula, using 2147 dry and (4105). 300 gallon batches were ground on a 5-roll Lehmann mill. #1 #2 #3 - Paste Formula 290 pounds 2147 5 1826 17 gals. (4103) 4 " (4230) 290 pounds 2147 5 "' 1823 5 " Acto 450 22 gals. (4103) 290 pounds 2147 5 1826 5 Kuade 22 gals. (4103) Gals./Hr. Grind 78 gallons 6H 86 gallons 6H 112 gallons 6H Batch #1 is the regular formula as used at Kensington and ground at the standard rate of 30 pounds paste per five minutes. The Acto 450 in batch #2 was added at the beginning of the mix to take advantage of its wetting action. The Nuade in batch %> was added at the end of the mix in order to preserve its tacky effect. All batches required about 20 minutes to nrif and were near*the capacity of the paste mixer as far as power and consistency were concerned. All pastes were soft on the mill apron and reduced easily. 300 gallon factory batches were also run on the alternate Rex 701 formula using 2147 and. (4103). 0007-SWP-000006891 5'~ra5^W5ii3S!5?n'sas<araE^EB!iiCT: f i , -- - Conb^ V4|Wste - -20'gallons (410S)^W&2fmsy:(iM$)tt05)^S , '= WB^pmhxlicJlJbk^^^X:!3:L--vV-v -'' (4250) r-1 v y. ^&BSsms::^ ?$' V -'* .save '-'- leto 450 -A ?lVi"iC on(348) ;?.L f,.v... 6''Hunfie* ; ' ' ' jPf:-VV' BlOsli TMTM *" teujjf .58 gallons yv"v:, **-> .:- 7-: -:' ' ' ' . ::rHr.-i-wt*V~.. -X-'. 95'gallons -- 76'gallons " ., * : ____ 6/H'v *> y:-- - ' : " ' :v ^ '' * ' ` t ;-'--'-' ' *7..^frjjS^pfefr. rate on. the regular fojrasula^is-lower than average.: In a'" -, it- --'<*s^'iecbnd.^-test, sun:on a slightly "faster'rnm^MO gcOsi/kr..'Bas'-oMaiaed ' V*! V?St^i'.h^'the 'regularj 180 gols./hr* on the'"Aoto .tetchy and 133 gMlonston the-: ^^auds' -batclu'r-*HbBeverj V the grind on all three of these batches was -:- -.< -*i >jSilOT 'standard. :4.V^.V. - - K-cr : Sr!$$?i3s3is:*. -T- ... - .',.r.\:-1-^iC^s. * -\..i\ferk:;cr/.h>2i....,CS6- 'itn^L\ ;.*'>&< It present t feel that with the "present usage of 2147 dry ; . v^i-.Huade is the most effective in Bex 710, and Act 450 the most effective in Rex 701 ; " ' .' - v"...... :- ' . -.. .. ..... .-. - . : -r v.- ;-. ;. - ... Attempts were made to' correct the flooding of Porch and Floor - _jEex:157. Additions of. various agents to the finished paint had little ^'effect. Acto 450 apparently, has little wetting action on lamp Mack - 104 dry. H?hen 104 was ground separately .with. Acto 450 there was only a Ifslight decrease in the flooding.' ~ t:*r . - KVji'.'... -. .5:.. -. .-..mo- da-. :'#L65 - One Coat House Paint : :~*; ' -` ' - ~:",:---=vr v-': In preparation for. the 1946 house painting program,- we have arranged with the factory to make'two 50 gallon'hitches of One Coat -, ijtouse Paint - CH 4697 end one 50 gallon , batch of S?iP Gloss fshifce based - ^pn:the latest revision. - .'.. ;c.rp-i--* - ....... ' : .- VI;..'.: '.'.v Thfi two 50 gallon batches of CH 4697 will be similar in formu- -lation except for the type of TiOg.^'' Formula 828 J will be'based on'all 1 1403 dry and formula 829 J oh one-half 1405 and one-half 2030 diy. Both formulas have a p.v.c. of 54.255 and ZnO content of 29.555. " In connection with our house painting'program, 8 gallons of , CH 4697 - C 1495 were shipped to Cleveland for test on Mr. L. W. l)asbachts house. ` f-V. 0007-SWP-000006892 .. r U`- <TMsEra^6RSK.,^vis?s3jfBsnia^?SHc-