Process for the preparation of copper phthalocyanine pigment

Details Process for the preparation of copper phthalocyanine pigment Process for the preparation of copper phthalocyanine pigment

1989-12-04

1991-05-14

Shen, Cecilia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540122, 540124, 540127, 540131, 540132, 540133, 540134, 540135, 540136, 540137, 540138, 540140, 540141, C09B 4704

Patent

active

050157353

ABSTRACT:
A process for the preparation of a copper phthalocyanine pigment which comprises adding a dry ground mixture of crude copper phthalocyanine containing 0.1 to 20% by weight of a crystal growth inhibitor to a 50 to 90% by weight aqueous solution of sulfuric acid to obtain a sulfuric acid slurry of the dry ground mixture, adding water to the slurry to form a precipitate and recovering it to obtain pigment grade copper phthalocyanine. The copper phthalocyanine pigment prepared according to the present invention is usable in coating materials, inks or plastics.

REFERENCES:
patent: 2334812 (1943-11-01), Detrick et al.
patent: 2770629 (1956-11-01), Eastes
patent: 3024247 (1962-03-01), Moser et al.
patent: 4152171 (1979-05-01), Barraclough et al.
patent: 4224222 (1980-09-01), Spietschka et al.
patent: 4239685 (1980-12-01), Pigasse
patent: 4370270 (1983-01-01), Bock et al.
patent: 4694078 (1987-09-01), Langley et al.
patent: 4771133 (1988-09-01), Liebermann et al.
Fitzgerald, Chem. Abst. 99-39890j, (1983).

Affiliated with

Also associated with

Rating

Process for the preparation of copper phthalocyanine pigment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of copper phthalocyanine pigment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of copper phthalocyanine pigment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1649307