Process for the preparation of polyhalo copper phthalocyanines

Details Process for the preparation of polyhalo copper phthalocyanines Process for the preparation of polyhalo copper phthalocyanines

1975-08-15

1977-01-11

Randolph, John D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

106 22, 106193P, 260 13, 260 37R, C09B 4704

Patent

active

040026426

ABSTRACT:
Polyhalo copper phthalocyanines are obtained by reacting a di- to tetrahalo phthalic acid or a derivative thereof, if necessary urea, a copper salt, a titanium tetrahalide and a compound capable of forming an addition compound with said titanium tetrahalide. The purification of the so-obtained products is much easier since lower amounts of titanium compounds can be used. The products are useful as pigments.

REFERENCES:
patent: 2469663 (1949-05-01), Moser
patent: 3013017 (1961-12-01), Luzzi

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