Process of making hexagonal alpha metal-free phthalocyanine

Details Process of making hexagonal alpha metal-free phthalocyanine Process of making hexagonal alpha metal-free phthalocyanine

1973-08-07

1976-01-13

Moatz, Harry I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

96 15, 117 34, 117211, 117215, C09B 4708

Patent

active

039324540

ABSTRACT:
A process for the preparation of substantially hexagonal crystals of metal-free alpha phthalocyanine, said crystals ranging in size from about 1 micron to about 75 microns is disclosed. Photoelectrophoretic and manifold processes employing said crystals are also disclosed.

REFERENCES:
patent: 2741531 (1956-04-01), Pederson

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