Document ymqJdnea4y4RK3aV66oQvvNqD

E. 1. DU PONT DE NEMOURS & COMPANY PIGMENTS DEPARTMENT 256 VANDERPOOL STREET NEWARK, NEW JERSEY Copy No. 1 v TrT~ r%'i / _ U"U. V I CGp { f* \\4 Ofs. I s# NEWARK PLANT PIGMENT COLOR RESEARCH REPORT PISMENT SCARLET LAKE RE-559-D* SEMI-WORKS TREATMENT WITH RESINOUS OIL. Period Covered < March 1946 FILEi DATEi 7/U/46 NJ3O90 N40004 Serial No. KH-46-39 Copy No. 1 Copy to* #1 Numerical File 2 - Research Offlee (222.41) 3 Library me (222.41) 4 #10 Building File 5 * Imperial Cbesdeal Induotriee, Ltd. 6. * | Cl l 8 W F. Spengeaaon NEWARK PLANT PIGSffiNT COLOR RESEARCH REPORT Final Report Title* PIGMENT SCARLET LAKE Rl-559-Dl SSMX-VORKS TREATMENT im RESINOUS OIL. Period Cohered* March 1946. SUBMimO BY# M. a. Taber DATE aosamxDi 7/2/44 DATE ISSUED t 7/11/46 N40004.01 DUP050150467 m*MM***tjr. Pigment Scarlet Lake, RE-.559-D, a whiting extension containing double the toner content 0f RB-389-D (a berytes lake), wsm originally developed specifically for evaluation by one customer, gengoleum Nairn, who subsequently rejected it as being no better than RE-389-D in dispersion) both products were une&teifactory, giving "spottiness* In addition to weakness under the conditions of the customer's test* Another linoleum lake, RM545D, has subsequently been specially treated, to give good dispersion in linoleum, by partial replacement of the whiting extender with an emulsion of resinous oil and naphthenic acid. K-2274. It mas suggested that the resinous oil treatment be tried with R*559"D, gupftBgsfj^.,qMm9iiS Throe semi-works batches of HS559*D were made, using plant RL-221-D press cake. They were treated as follows! M iMcfgtet H72 Control $0 8673 Treated SO 8674 Treated 45.5 %M%M JSO 45 45*5 Ififakg^PA* 0 5 9 In linoleum tints both treated batches were a trace stronger then RE-389-D, the i$ft barytes lake, used in double amount. At the full number of mill paesee (1QX) the untreated batoh was only slightly weaker but at only 6 paesee it was markedly inferior to the treated material. Lot 8674 wao very slightly weaker than lot 8673 but would be somewhat eheaper* Full shade linoleum grinds shewed no difference among bateheai all were vs blue and dull versus MS.J8H* Strength by the Gongoleum %irn method showed only minor differences but the treated batches were a little stronger than the control* Inasanoh ae the customer is now using the soap fast naphthanil lake RU-545-D nether than Pigaent Scarlet, no further study of BE-559-D is contemplated at present. ^ Our Method Lot 8672 vs 21 RB-38960 8673 8674 vs 8673 n 8672 8674 vs 8672 8674 vs 8673 vs weak strong e strong strong strong vri weak BHHOSHCIB DSN 46*12 81 let* 8672, 6673 and 8674. linoleum Taaljs Gongoleum Maina ......... vs weak vs strong we strong vs strong vs strong we weak vs wkk and ypllow eq. strength, vs yellow eq. strength, vs yellow vs strong, we blue ws strong, ws blue we weak DUP050150468