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E. I. DU PONT DE NEMOURS A COMPANY KREBS PIGMENTS DEPARTMENT 256 VANDERPOQL STREET NEWARK. NEW JERSEY Serial No.KN-49-10 Copy No. X NEWARK PLANT PIGMENT COLOR RESEARCH REPORT RT-57X-D, PLANT DEVELOPMENT 5-Nit r o -2-amin o -an is o l e - l it h 6s o l a c id ' bo n , man g an es e Period Covered: October 1947 - August 1948. FILE: DATE: H/L4/49 N42194 Cojjjr tot #1 - Huaerioal PH* % Beeeafeh Office 3 Idlarttiyfilo !, V>TJO # opangwnCh&lusiki m Plant?r^!at^iwiwwp ^ a^^*ee*^ - 8, B. Killian t Serial So, KR-49-10 Copy Ho. 1 HEfARK BUST < PRBflSHT COIXJIt RESEARCH REPOST lioai Report Title* BT*57I-> PUHT WflMPMt 5^1.3^K0-IBIS01B ** X.HB080l, MID BOH, KAHGAHiSE Period Covered* October 1947 to August 1948 ' Charge* A-H-C-ISO *' DATS SlffiJCCTlSD* X/27/49 BATS ISSUED* H/14/49 DUP050067170 IHTROPUGYXCB Hf*57W3 (5^tro-2-aaino^BniQle -* BCR, wmgansss) Has developed in the 1aboratoxy to aid in the reduction of ths reactivity of RT-58&.B (K-2292 or Rf-551*D (A) ) % blending 10 ports of Rf*571^D with 90 parts of RT~56S-D. A seal* works development Was node and a satisfactory fora&s derived, (Let 9421) A plant trial was definitely warranted especially as orders had bssn filled with seni* HT-571-0 was sst up on ths (0) process which has a 5 minute development Shi* oorceft&QEidia to Ihi lot Oi.91. (2) RT-57W> (C), 3D 55275 was set up as the current standard* (3) R?-*571mD is not standardised as a flniehed product but is made Into a 10/90 blend with ths Rt->58RD standard and evaluated, for color and reactivity tnalkyd* (4) the plant assumed supervision of manufacture of Rt-STWJ (C) an August 5* 1943, ths plant lots were made on ths RT571<.D, lot 9324 process, the first was satisfactory but the seocmd was a "flopB batch at the and of the development* (A BflopB batch is one in which ths slurry has turned to a light red from a very dark, bluish material due to over developaent). Following thin latter batch* the problem was temporarily returned to the laboratory and seal-works for a brief study on ths temperature of development. Reducing the development temperature to 15#? for 5 minutes gave satisfactory results in th aead-worfes (lot 9421} and 7 additional successful runs were made on this procedure in the plant* the last three were followed only nominally by researoh| the alant MMBMtftg w*wwndMiifer for testing wtutHna t-hese lots. the lots were evaluated fcgr research in blends with Rt-580-D and the reaults are recorded in H.B. 1264* exp. 30* 5? and 62. I84M Laboratory Development of RT-571-D KR-49-9 Semi*works Development of RT-57X*D DSf-49-10 * " DUP050067171