Process for producing highly chlorinated copper phthalocyanine

Details Process for producing highly chlorinated copper phthalocyanine Process for producing highly chlorinated copper phthalocyanine

1980-12-18

1982-05-18

Raymond, Richard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26024583, C09B 4710

Patent

active

043304702

ABSTRACT:
A highly chlorinated copper phthalocyanine is produced by chlorinating a copper phthalocyanine in the presence of a catalyst for chlorination in a solvent by charging chlorine under an elevated pressure. The chlorination is carried out in an inert organic solvent incorporating chlorosulfonic acid and/or pyrosulfuryl chloride at a ratio of 1 to 30 wt. % based on said inert organic solvent which maintain dispersibility of said resulting highly chlorinated copper phthalocyanine.

REFERENCES:
patent: 2662085 (1953-12-01), Holtzman et al.
patent: 4091028 (1978-05-01), Barraclough et al.
patent: 4218376 (1980-08-01), Matsuura et al.

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