Production method of beta-type copper phthalocyanine pigment

Details Production method of beta-type copper phthalocyanine pigment Production method of beta-type copper phthalocyanine pigment

1997-01-03

1998-11-03

Shah, Mukund J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540142, 540144, C09B 6750

Patent

active

058310835

ABSTRACT:
A production method of beta-type copper phthalocyanine pigment comprising steps of: a) producing a reaction mixture containing crude copper phthalocyanine in an organic solvent; b) wet-grounding the reaction mixture by mechanical energy to form a suspension; c) removing the organic solvent from the obtained suspension does not contaminate the work environment and represents an improvement in terms of both productivity and economic savings compared with conventional methods. The beta-type copper phthalocyanine pigment produced by this method demonstrates excellent dispersability, such that it may be dispersed without further modification in a resin, varnish, plastic or other medium as required, to produce a paint, ink, or plastic tinting agent, for example.

REFERENCES:
patent: 2556727 (1951-06-01), Lane et al.
patent: 5281268 (1994-01-01), Ide et al.
patent: 5449774 (1995-09-01), Lambie et al.
Database WPI; Derwent Publications Ltd.; London, GB; Week 7422 AN 74-40536V.
"Preparation of Copper Phthalocyanine Pigment", Shinichi et al.; Publication No. 05125289; May 21, 1993 (Patent Abstract of Japan).
Database WPI; Section Ch, Week 8642; Derwent Publications; London, GB, AN 86-276575.

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