Document 5DR2JG9GyVvBwZ3ejYOnyOmb5

E. I. DU PONT DE NEMOURS & COMPANY KREBS PIGMENTS DEPARTMENT 256 VANDERPOOL STREET NEWARK. NEW JERSEY KN-46-33 Copy No. 1 .... , / f '^ r' j ' ' S - 3 NEWARK PLANT PIGMENT COLOR RESEARCH REPORT PLANT DEVELOPMENT OF RE-35-DL Period Covered: Nov. I946 - Feb. 1947 FILE: DATE, 11/2/49 NJm N42179 ..................... ' M&m {f22,42) mo * flout File* Sorlal Ko, Ktf.40.33 Coper So, 1 K4HT wxws g o io r r e s e ar c h wmm Flaal Report T1U PUH? BHWlLOPtBHT OP KB-85-IS.. Period Covered* <sr, 1946 to Fob. 2.%7 Gbarg** A-UC-57 SUBM3TX&D BXi f* S KLS3W Am PPEOvtaaEaaOafe Bjfj mj I, f Am * Aa * <{,f*j wm&m&mt n/30/u& mn issuEOs 11/2/49 DUP050067093 Laboratory v&riablaa and plant dsvelopoent of the first four batches of 8S^4 (lets 33904 throng* 34039) were reported in KH-46-58. The last batch nas made on June 30, 1946* Jflant development was resumed on November Id, 1946 and tmvm^nlvfwi VilNIw*s"iy " ni^"e*iery The first ton of the twelve above*BaUonsd batches of differed feMa IL9WI foarly fomuls) in that thw contained pi, pht eiwhi of Aoo Bordeaux*os awae .vTWwe*rjer,ne ip.opjf wwpe*MwW'^:f -on*# w ps ^^w wssemy eprsewp-wywwwse^sp vsistjQeew jfF*epspe*ena 'see *Fwew* Tn eoite Of *Ma juMIHwi. ths tatmtaw In ffawppaj Hero liftt in *"*< -" Sad TilleM In csttnilCQi j^Qgf^ep -of these resuite the last two batches were wde with tselvi pounds of Am Bordeaux end with a change in the alusdna hydrate base Iren 30/L2.5 to 30/13*5. These changes increased the nasstone depth and also the etrength of the pigment. As a result of this plant dsveiopaaat HK-85-H. (direot-laked RB8pS) use aet-up as a standard. The standard formula was coded ABU&pQU 8*S5*BL did net replace 8&.85-D because it differed in tinctorial properties. Instead, two separate standards were maintained. mt D8H48p 30 ttffiSRgHjrcag sjsejajjJSJJjjjyyfijHR?? KN46*58 K-2332 K-234S K-2443 DUP050067094