Process for preparation of crystalline oxytitanium phthalocyanin

Details Process for preparation of crystalline oxytitanium phthalocyanin Process for preparation of crystalline oxytitanium phthalocyanin

1992-08-07

1993-12-21

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D48722

Patent

active

052722643

ABSTRACT:
A process for the preparation of crystalline oxytitanium phthalocyanine showing D-type crystalline form comprising contacting dichlorotitanium phthalocyanine, dibromotitanium phthalocyanine or a mixture of them with at least one organic solvent selected from the group consisting of aromatic nitro compounds, nitrogen-containing cyclic ethers, aromatic amines, alcohols containing not less than 4 carbon atoms, aldehydes, ketones, lactones, lactams, acid amides, nitriles, alkyl sulfoxides, substituted phenols and non-substituted phenols in association with water.

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