Oxidation process for preparing quinacridone pigments

Details Oxidation process for preparing quinacridone pigments Oxidation process for preparing quinacridone pigments

1997-08-13

1998-11-24

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 56, 546 57, C07D47106

Patent

active

058409017

ABSTRACT:
The present invention relates to a process of preparing quinacridone by oxidizing a 6,13-dihydroquinacridone salt corresponding to the quinacridone pigment with hydrogen peroxide as the oxidizing agent. The inventive process is economical and environmentally friendly and yields high performance quinacridone pigments in a high yield.

REFERENCES:
patent: 3738988 (1973-06-01), Jackson
patent: 4956464 (1990-09-01), Bender
patent: 5093497 (1992-03-01), Schutze et al.
patent: 5223624 (1993-06-01), Babler et al.
patent: 5286863 (1994-02-01), Babler et al.
patent: 5424429 (1995-06-01), Hendi
patent: 5502192 (1996-03-01), Ganci
Production of Quinacridone Pigaments, Toyo Soda Ind./H. Iwamoto, disclosure on Oct. 27, 1981, JP-S56-45512.

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