Document N2VZQJ7zEn0q9ONYxgdw2LLwD

7m Sm&ttN-WiutAMs Co. In t e r -Of f ic e Le t t e r FOR #30 CoffeyvUle mb. 0. p. Wyman ANSWERING LETTER OF FROM OFFICC filnvelaad. DAT* August 2it, I960 u biic t Tho (Hidden Co. - Persona]. OICTATKO or Birr. As per our phone conversation yesterday, I was shocked to gat a report from the above that all our lithopone standards were lotr In light resistance. While they didn't feel this was of too much importance, nevertheless, they felt we should be aware of it. A panel covering their tests an this Is attached hereto and this Is senething we should run dovn immediately. While I have heard of no complaints either fraa the trade or free ear own coapazd.es, I suspect it's -because na one checks this feature any acre. At one tins, as you know, this was vary critical in the whole lithopone industry and I believe was Uaked by the addition ef either nickel or cohalt, or both. As I recall, shortly before World Whr H a Dutch chendst was in this country and contacted us regarding light stability ef Uthopenes in general, waking the claim that none ef the U.3. producers had the aatarlal comparable with lithopenee produced in Europe. Ee spent a few days In CoCfeyvUle and pointed eat that the very mUnrte quantities of tin present In our lithopone accounted far the poor light resistance. Hqrbe sane ef the old timers at Ceffsyvilla will recollect this. In any case, as I requested yesterday will you please run this down and let am have a report later. It so happens that we are considering the possibility ef using lithopone In an underceater for latex paints but couldn't do so If the light realstance Is as poor as the attached Indicates. ^350 S.B.Coelldge,Jr. zmek 0007-SWP-043229 Oil i ,v -... . .. : - . . I PU. rt^^:----_ .w. . u -tmyp * is I 3r i* | n i -r U0-U3 .r Mr ' vm l .a* *.. j.. . - > " | tMlh'.ffe M. * lw*i .**E f j **<"! V-Hf: <*.urJ' t-miw it*. 1M ---r rp-- --i---------- ^ '-' i "l7**: t iiwMOatfr^; - ' f . Hi: jirtN1***'.'' , * ft -,Cr* UU i*f a.3: f mc 7t0+ i oaa \#0~* -fi.CjrZ U u;*y W7 : if jr7!. *mk 7I09-' -- J. < r. 100"' -f**. . v4* rr. *r MU !m4 %) St4- : MW ! U ;7*if j^ - KJ'S-i." '. **$ ' ik j s 'I'"'- - .i; I'T : ; >- ... ` art' . 1, - } T - S J- T.* : I* *.f ? Mart ` W . ! 20-1 :- i ; ' .. -.flra *3-90 W M hw M* .`.p. .dP - ------------------------------------- 0007-SWP--043230 0007-SWP-000126386 0007-SW P-043231 0007-SWP-000126387 ttWDgj "Regular" (designatedon rdersand tOOur CusMSmfSeeVef without using the word "regular*') Tint *--------------------- 95 Minimum on ............... LO, below 14.0; HO, above 15.0 Color---------------------13- Mini mum Screen ---------------- 99.80 minimum ZnO ----------------------- .20% maximum WSS----------------..... .07% maximum Moltture --.--------- - .30% maximum pH ------------ --.-- 8.J-9.3 Special treatment -none HAH'.'FACTUftlNG SPECS: riant. -- Stmultaneous, barium tide strikes, brought up at vary dark gray MIS spot test. -- Finished faint gray MIS spot test. -- Add cobalt suifata (amt. par lab instructions) to finished strike. -- Soluble suifata (such as salt cake) to be added any time strike Is being made In order to reduce soluble barium In C-2 press filtrate. Amount per lab Instructions. L-2 dent. -- Calcine at temperature per lab Instructions. 1-3 dept. -- HrdrwePerKor - 99.80 minimum screen tragus * 3-5 Water wash - to 6.8 pH minimum Alkaline treatment tanks - adjust pH to 8.5 with barites hvdrate. Add ultramarine blue (amt. par lab orders, but usually i lb.) by slurrying In sodium silicate solution. t-4 deet. -- Permissible to add' I pint sodium silicate per press tank to ease extrusion. Finished end moisture - less than 0.30%. L-5 dept. - AtfUiOML - * _ Hlkro nlll screen sl*a - to obtain 99.80 minimum scremit test. 3/64 h.b. usually works when hydroseperitor results ere O.K. teas - "Regular" begs, l.e., those showing no special grads designation. 0007--SWP--043232 it 0007-SWP-000126388 Same as "Regular" except under special treatment J lb./ton Tamol U la added to improve dispersion and gloss. HAWJPACTURIRG SPECS: L-I deot. -- Same as "Regular" L-2 deot. -- Same as "Regular" l-? dept. -- Samo as "Regular" except 10 tbs. Tamol H Is tft be added to each treatment tank. L-h deot.-- Same as "Regular >--1 dept. -- Seme as "Regular" except packed In bags Imprinted "96''. 0007-SWP--043233 0007-SWP-000126389 ----------- 95 minimum Oil ------ ---------- no specs but generally runs below Color----------------- -- 13Screer>--------- ---------- 93.95 minimum ZnO ,20 maximum WSS ----------------- ------ .07 maximum Moisture ---------- -- .30 maximum >H................................8.3-9-3 Special treatment - 96 grade which has been homogenised. MANUFACTURING SPECS; L-: dept. -- Same as "Regular" 1-2 dent. -- Same as "Regular" 1-3 dent. -- Same as 96 except material Is homogenised after the $6 treatment and after solids are adjusted to 35.5% or less at 5000 psl Into clean tank. t L~U dept. ~ Same as "Regular" l-S dept. -- Same as 9<> except screen test Is to pass 99.95%. 3 .1 i I j. -f. 0007-SWP-043234 0007-SWP-000126390 __5 flNfSllP SPECS? ' ' a" ' %!>(-' V-s^V1'r~ Tint----------- --------- 95 minimus*-; Oil ------------ ----------- >5.8 or below Color 13- minimum : Screen-------- *--------- - 99.80 minimum ZnO----------------------- .20 maximum ` WSS ------------ ---------- ,3 maximum Moisture--------- .3 maximum pH--------------------9.0-9-5 Specialtreatment - 0.2% tetrasodlum pyrophosphate a(Mail to reduos water absorption below 15.0 ca.watar/100 grams 11thopone . ; MANUFACTURING SPECS; L-l dept. -- Same as "Regular" L-2 daot. -- Same as "Regular" 1-3 deot. -- Same as "Regular" or 96 1-4 daot. -- Same as "Regular" except 0.2% tatrasodlun pyrophosphate added by 0007-SWP-043235 0007-SWP-000126391 **s, Sww^s for 'Regular" HO or 96HO except u.vler'ypeclat' treatment .1 aluminum stearate is to bo added as a flo* inhibitor in"oil base coatings. MANUFACTURING SPECS: L-1 <iept. --* Same as "Regular" >.-2 dept. -- Same as "Regular*1 1-3 dept. -- Same as "Regular*' or 96 L-l dept. -- Same as "Regular" k~5 -- Same as "Regular" except .166% aluminum.stearate is to be added ahead of Hikro mill. 0007-SWP-043236 0007-SWP-000126392 L-2 Pent. -- Sams a* tor "Jugular" high oil L-3 Deot. -- 5ana as for "Regular" bp to alkaline treatment tank* tritera this pigment Is tested for suitability for CVAH: I) Oil absorption- In alkaline tank must be 18.0 or higher. C) Screen test must be 99.85 or better. If the IIthopone meets these prerequisites, the following treat ment is then applied In the alkaline tanks: 1) Treated for 96 and solids adjusted to 35.5% or below. 2) Homogenized at 5000 psl into a clean tank. 3) Dry sample and grind Into CCF's formula. Rest of treatment Is determined by amount Of gloss which this shows a) 1/2% calcium chloride added to tank as a water solution and mined 15 min. b) 3/4% sodium bicarbonate added as a water solution end mixed 15 min. 4) pH lowered with phosphoric acid to 6.4 or below (should . take about 4 gal. of 75% H3PO4). Let mix 1/2 hr. 5) pH raised with barium hydrate to 8.5 pH. However, da not use more than 250 lbs. of BaiOHjj so long as pH is raised above 7.2 with this amount. In other words, pH is either raised no higher than 8.5 or 250 lbs. maximum of Ba(0H)j whichever occurs first, so long as final pH is above 7.2. 1-4 Pent. ~ t-S PflPt. - Use bypass Una; do not contaminate with other grades of IithopOne anywhere. Additions: After Hlkroml 11 add .22% aluminum stearate and 1.0% "Cel 1te" Superfloss. Hlkroml II: Ory mill wlthout a screen In the mill. Pack: ln"Regular" bags but stencilled CVAH. There must be n separate lot number assigned to each alkaline tank of material, hr two alkaline tanks can be taken to steam drier "boxed" together nd packed under the same lot number. ........ Ravisad 9/9/59 r <3 i 0007-SWP--043237 0007-SWP-000126393 1.-3 deot. -- Sane at for 96H 1-4 dpt. * Sana as for Regular1' IrS-dlPt- -- Sana as for 96H except the above amounts of Thlxcln to be added dry ahead of HIkro mill. 0007--SWP-043238 0007-SWP-000126394 EMSHEg spg& Tint ----------- --------------------|i5 vV Oil - 16,5 to 17*5. (This rang* to iMt requirements of Monroe, Leclefar, and Taussig; Otter ranges possible 1 If required.) Color ------ ----- ------- ----------- 13- minImu m Scroan ---------------- 99,80 ml plater . ZnO .20 minimum ; l/SS .20 minimum Itolstura ----~-----.30 minimum :. pH B .3-9.3 ' :. Spaclal traatnont Titanlum dioxide (Zopapn) added to raise tinting:strength to 1LJ. 4 mwUFACmiHC SPECS; ,, L-l Peat. -- Sana as "Regular11 L-2 Oept, -- Same as "tegular*1 L-1 Pact. -- Sambas "Regular" uptoeltel.lnetreataenttanksv At this point; a) Tint and sol Ids careful ly determined and mount of Zopeque ' to be added ia:pre.fiOrnu lated- Ifcctjntrol lab. ^ b) If for Monroe, Ixdefeci TausilgorOAMJmoro stock, than oil absorption IschdcKbd, If. baiter-)8.5> partial silicate treatment Is adttod/pefrvloh Instructions-, full treatment consists "of; I) Lbs* llthopone x 3% to gat lbs. sodium slllcata. .J*** ad<4 d mlnj^lipor. j^'.lbs. llthopone x0.90% to get lbs.*, barium chloride. ^Add and nlx.i hour, ____ Just pll.to;-6i6with sulfuric acid (usually I OX of ^TfeNIcate)* Tterr latmlxVhours. ' c) Md- Zopeque 15 bags at a time by slurrying In small mix tank.4 -full of water, plus I gallon of sodium silicate. d) Retest tinting strength. Adjust to Ib5 by addition of more Zopaqua or llthopone. a) Usually do not odd bluo or barium hydrate. Co lance salts with BaClj before taking to steam drier, L-k Oept. -- Same as for '`Regular"; do not add sodium silicate, however. Usually goes through prass tank bypass line. L-5 Oept, -- Same as for "Regular" but pack In Tltanollth Imprinted bags. Ravi sad 9/9/59 0007-SWP-043239 0007-SWP-000126395 FINISHED SPECS; Tint ---------- 85 minimum Oil -------------------- 20.0 minimum Color ------------ 13- minimum Screen --------------------- 99.80 minimum Zn0 ---------------- .20 maximum "S$ -------------- .10 maximum Moisture ---------- .Jo maximum pH ------- ------------ --------- ------ 7.5-8.0 (For U. S. Gypsum) Special treatment ---- treated at L-l for high dry hiding. MAliUFACTURING SPECS; L-l Pent. -- Simultaneous, barium si do strikes, brought up at very dark gray l!IS spot test. Adjust jt end of strike to faint pink phonolphthaleln, . > !.-r *.;.* z.x.',. 1) Add cobalt per lob Instructions, (Use factor of 2 x g/l cl to equal ounces cobalt/strlke.) 2) Full treatment - adjust for solids. * a) Add I2!jr lbs. "Iron-free" aluminum sulfate. Ualgh.' up othor chemicals while this i mlxlng lof b) Base with barium liquor tofalntjiink wltih^phenolphthaleln. c) ^dd U lbs. 13 6*;. "Wgrade sodlumrsillcatc. Bass again to faint pink If rWcassary, . ..^.^ - d) Add 24 lbs. 5 or* of ?5^ phosphoric acid (2,46 gallons). 1 " ' **& " " 3) Then add enough barium liquor to; give pronounced pink color on phenotphthaleln spot test.!;-- :- L? Dent. -- Calcfhmyajt temperatures per lab Instructions. kd.osPU Mydg Alka r, acid treat, and watorwesh as .for^Hegiilar." tMHrtfffaiks: Adjust pH within &.$ to 7.5' ranger* Ultramarine blue as for RegularM Add protein solution: ,00032 x lbs. Ilthopona equals gali.^jf of protein solution to be added, * 1-4 Dept. -- Same es for "Regular" Deot. Additions: None Jt'V HJkro mill screen sire: Mill through 3/64 H6 screen, 8e sure'' Mlkro mill screen has nr holes, for many customers give this pigment no additional r.i Ming. Uftes: Pack In bags imprinted "76." Revised 0007-SHP-043240 0007-SWP-000126396 1-2 Dept. -- Sara as for 76 l-l Peot^. -- Sara as for 76 1-** P*ot- -- Sara as for 76 , .... > 1-5 Oept, - Additions: Using automatic feeder after the steam drier", add 0.2X tetrasodlum pyrophosphate. Al I else - same as 76. Hlkrowl11 Screen: 3/6k or finer. 0007-SWP-043241 0007-SWP-000126397 other heavy ratals by addition of certain chemicals. For use In paper coating. MANUFACTURING SPECSi tl Peot. - Same as for 76 1*2 OcDt. -- Sara as for 76 1-3 Beat. -- Sara as for 76 except that no protein need be added (no harm If It _ Is, however). Color must be 13+ or better. > L-4 Pent. -- Sam as for 76 1-5 Bept. Add?11ons: 0.30% tctrasodlimi pyrophosphate at automatic feeder after steam drier. Hand feed 9,25% thiourea and 0.50% ammonium thiocyanate In Mlfcro mill hopper. Do not store In bins rare than a few hours because of possible rustIng of the steel. Mlkro mill screen site; 3/64 h.b, screen. Bees: Pack In .76 bags. - ' \7 . i. Revised 9/9/59 * 0007-SWP-043242 0007-SWP-000126398 fjfliasajgg- ?: ; Tint --*----------- 95 minirwm ':<** $ oil ------------------- 15.0 - ii.o . '?- Color------- ------------ 13 minimum p Scrasn 1-------------- ,95. SO minimal -- -: v ZnO ---------- .10 maximum ! ' "* ,. v .i*;'- VSS ------------ .0 maximum Moisture---- ------ .30 maxima* . * ' />' pH ---------- 3.0 maximum Special treatment - sodium silicate added ln-t-3. O.OOX TSPP added in 1-5 to givu maximum water dlspersebi I ity of the plgment..- MAHUPACTURIH3 SPECS: : W-r , L-i dcot. -- Same as for "Regular" Lt deot. -- Sama as for "Regular" high oil | ' LR daot. -- Same as for "Regular" to the alkaline, tanks ..In the alkaline tanks It Is given the CoUapng -treatment; 1) Solids adjusted to i??5% orVbelow and homogenized at 5000 psi Into a cteen'tank. 2) )M sodium s i 11 cate lidded end mixed 1/2 hour. . . . 'fcp*' * , - " 3) Acidify with H2SO4 to 7.0 pH and mix at least k hours. t-4 deot. -- S*M^a*tfV$$j1Ugular" but do not-add any additional sodium sMTcatfe nw r . vj'jfc * L-5 dept.Additions^ Add tetra sodium pyrophosphate after steam drier at rate of ChOS%. Hlkro mill screen size: To obtain 39.80 minimum screen test. 3/ik h.b. should normal!y be fine enough. 8ags: pack in "Regular" bags. .. 0007-SWP-043243 0007-SWP-000126399 V T S ffe* GRAPE: for Dunlop Tire & Rubber FIHISHEO SPECS: Seme as for pleln 75 except that tint and color have no importance. This material is used in golf ball centers end its consistency in bentonite-water slurry test is tho only important consideration. However, the exact consistency of this test slurry (s very Important so that the pigment`s oil absorption must be within the usual 76 grade limits. Also, it is specially treated by the addition of \f% X Argued 2 HT to further Increase tnis consistency. ' HAHUFACTURIHS SPECS; l-l dept. -- Samu as for 7-> ,. ... -V > u-t deot. -- Same es for 7i >1 deot. -- Same as for 76 although no protein need be added. -- Same es for 76 - ;~ krJLiSEl. Addition -ApproxImete I y 0.5% of Arquad .(Armour Cheamo|'i3cafi.l CCoo.) . 2 Hr fs added ahead ot' the". Hi critical . nature of the consIstency.^Pes^the' amijutvt of this a'd"dJi~tion " should've preformulated im tne lab, tihCT'reefieieked* after the actual run has been started In case .'any~further adjustments need Itf'eida Tn the amount of the addl Cion. Hlkro mill screen situ - 3/S4 h.b. screen Begs * feck In 76 bags'. .*r"" ^V 0007-SWP-043244 0007-SWP-000126400 FUtlSHEP SPECS: Sana as for plain 76 except WSS which have a .6% maximum, Under special treatment - treated to reduce sulfide staining of copper by addition of certain chemicals, For use as a paper filler plgaient to be added to the beaters. HAHUFACTIWIHC SWCSt Ijl Poet. -- Same as for 76 l2 Oeot. -- Same as for 76 l-l Pact. -- Same as for 76 except no protein need be added. L-4 QaPt. -- Same as for 76 1-5 Poet. -- Additions; 0.30% tetrasodlma pyrophosphate at automatic feeder after steaai drier, Hand feed 0,25% ammonium thiocyanate In rtlkro mill hopper, Do not store in bids more than a few hours because of possible rusting of the steel. Hlkro mill screen size: 3/64 h,b. screen Bags; Pack In 76 bags. i i I I I Issueu 9/9/59 0007--SWP-043245 * J i i 0007-SWP-000126401