Processes for the preparation of phthalocyanines

Details Processes for the preparation of phthalocyanines Processes for the preparation of phthalocyanines

1990-06-04

1992-10-06

Goodrow, John

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540140, 540141, 430 76, C09B 4704

Patent

active

051533138

ABSTRACT:
A process for the preparation of phthalocyanine composites which comprises adding a metal free phthalocyanine, a metal phthalocyanine, a metalloxy phthalocyanine or mixtures thereof to a solution of trifluoroacetic acid and a monohaloalkane; adding to the resulting mixture a titanyl phthalocyanine; adding the resulting solution to a mixture that will enable precipitation of said composite, and recovering the phthalocyanine composite precipitated product.

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patent: 4898799 (1990-02-01), Fujimaki et al.
patent: 4971877 (1990-11-01), Miyamato et al.
patent: 5008173 (1991-04-01), Mimura et al.

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