Process for the preparation of quinacridone solid solutions

Details Process for the preparation of quinacridone solid solutions Process for the preparation of quinacridone solid solutions

1998-07-24

2000-01-11

Kight, John

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

546 49, C09B 4800, C07D47104

Patent

active

060131276

ABSTRACT:
Solid solutions comprising quinacridone and 6,13-dihydroquinacridone are prepared by oxidation of a finely divided 6,13-dihydroquinacridone salt in an aqueous basic alcoholic medium using hydrogen peroxide as the oxidant. The solid solutions are useful as red organic high performance pigments.

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patent: 3748162 (1973-07-01), West
patent: 5093497 (1992-03-01), Schutze et al.
patent: 5223624 (1993-06-01), Babler et al.
patent: 5229515 (1993-07-01), Pfenninger et al.
patent: 5502192 (1996-03-01), Ganci
patent: 5856488 (1999-01-01), Babler

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