Colorant blends containing a salt-forming azo pigment and a pyrr

Details Colorant blends containing a salt-forming azo pigment and a pyrr Colorant blends containing a salt-forming azo pigment and a pyrr

1997-04-23

1999-02-09

Higel, Floyd D.

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

Azo compounds having utility other than as dyes

8638, 8639, 106494, C09D 500, C09D 712

Patent

active

058696253

ABSTRACT:
The present invention relates to colorant blends comprising (a) an azo component, which is a salt of a salt-forming azo pigment of the formula

REFERENCES:
patent: 2508448 (1950-05-01), Brizzolara
patent: 4415685 (1983-11-01), Igbal et al.
patent: 4579949 (1986-04-01), Rochat et al.
patent: 4783540 (1988-11-01), Babler
patent: 4791204 (1988-12-01), Jost et al.
patent: 4810304 (1989-03-01), Jaffe et al.
patent: 4844742 (1989-07-01), Jaffe
S. Panush, Jouranl of Coating Tech. vol. 52, 51 (1980).
W. Herbst & K. Hunger, Industrial Organ. Pigm. VCH, New York (1994) pp. 189-343.
Derwent Abstract An #84-078792, XP002054561 (1984).

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