05482811 is referenced by 145 patents and cites 6 patents.

A process for the preparation of hydroxygallium phthalocyanines which comprises hydrolyzing a gallium phthalocyanine precursor pigment by dissolving said hydroxygallium phthalocyanine in a strong acid and then reprecipitating the resulting dissolved pigment in basic aqueous media; removing any ionic species formed by washing with water, concentrating the resulting aqueous slurry comprised of water and hydroxygallium phthalocyanine to a wet cake; removing water from said slurry by azeotropic distillation with an organic solvent, and subjecting said resulting pigment slurry to mixing with the addition of a second solvent to cause the formation of said hydroxygallium phthalocyanine polymorphs.

Title
Method of making hydroxygallium phthalocyanine type V photoconductive imaging members
Application Number
8/332304
Publication Number
5482811
Application Date
October 31, 1994
Publication Date
January 9, 1996
Inventor
Sandra J Gardner
Willowdale
CA
Dasarao K Murti
Mississauga
CA
James D Mayo
Toronto
CA
Cheng Kuo Hsiao
Mississauga
CA
George Liebermann
Mississauga
CA
Barkev Keoshkerian
Thornkill
CA
Agent
E D Palazzo
Assignee
Xerox Corporation
CT, US
IPC
G03G 5/047
G03G 5/06
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