Document 8OO4ea1M6ZGov9Y4dxLR48aQd

E. I. DU PONT DE NEMOURS & COMPANY KREBS PIGMENTS DEPARTMENT 256 VANDERPOOL STREET NEWARK. NEW JERSEY Copy No. 1 Numerical File Si 't Period Covered: NEWARK PLANT PIGMENT COLOR RESEARCH REPORT Final Report PARMA WINE PROBLEM GLOSS RETENTION OF RT-135-P DECEMBER 194? to MARCH 1949 FILE: DATE: 221.32 3/11/49 nj ut i N42174 Copy to* #1 - Huaerlcal File 2 Research Office (221*32) 3 * Library Fils (221*32) 4 * #10 Building File 5 - V. Chalupski - Plant Files 6 * Dr. D. B, Killian 7 4 Extra Serial Ho* KH-48-27 Copy Ho* x HEWARK PLANT PIGMENT COLOR RESEARCH REPORT Final Report PARMA mm PROBLEM GLOSS RETESTS ZOB OF RT-135-P DECEMBER 1947 to MARCH, 1949. CHARGE* CC-200-601 SUBMITTED ill A. APPROVED Bit A. A. Brisz"olara DATE SUBMITTED* 3/9/49 d at e is s u ed * 3/11/49 DUP050067060 a w 1 PROBLEM ami. ,mmQJ,02.JErA35=?e 1 mmmum* General Motors was encountering difficulty with "early dulling*1 * o3 f the Parma Wine Lacquer Maroon on exposure. The PGF Department at Parlin requested the assistance of the Pigments Department in either increasing the gloss retention of RT-135-P or submitting other reds and maroons of good gloss retention* The latter course was followed and, of necessity, the samples had to be In pulp form, requiring special preparation of moat in the semi-works. : * 1. Pulp samples of various reds and maroons were either obtained from plant manufacture or prepared in the seal-works and laboratory* 2* As the majority of these were normally dry pigments, new pulp codes were assigned In all casaa share necessary. 3. The pulp samples were submitted to Parlin for their evaluation. Approximately 10# (dry weight) of pulp was prepared on the following codes which are listed with composition and corresponding pulp code* RT-530-D MNPT -r) H-BS RT-588-D 5-H02-2-SH2-anisole N-A8D RT-525-D Red 2B Acid --> BOH, Mn RT-492-D MHPT-- H-ASD RT-551-D 90$ RT-588-D 10% RT-571-D RT-500-D PCORA-9 H-ASD RT-566-D PC0NA~* H-GL RT-458-D MHPA--* H-BS ART-574-P ART-576*? ART-575-P AHT-578-P ART-577-P ART-579-P ART-580-P RT-140-P(A) Also small quantity of Pigment Green B (GT-79-P) It was hoped that these reds and maroons might be used individually or in combination to give a match for the Parma Wins shade with improved gloss retention* This study did not include any work on RT-135-P per se* The Pigment Green B was included for shading purposes by Parlin. aasipiiii iHTAL DETAILS t H.B. 1162-34. DSH-.48-26. REFERENCES t Latter J.B.Callaway to R.T.Hucks of 12/1/47* Memo of A.A.Brizsolara on Parlin visit of 11/21/48 * 12/1/47 DUP050067061