Hydroxygermanium phthalocyanine processes

U.S. Patent Number: 5382493

Abstract: A process for the preparation of Type II dihydroxygermanium phthalocyanine which comprises treating dihalogermanium phthalocyanine or dialkoxygermanium phthalocyanine with a strong acid, followed by treatment with water, and subsequent optional washing with an organic base and an aprotic organic solvent.

Inventors: Ong; Beng S. (Mississauga, CA), Bluhm; Terry L. (Pittsford, NY), Hsiao; Cheng-Kuo (Mississauga, CA), Duff James M. (Mississauga, CA)

Assignee: Xerox Corporation (Stamford, CT)

Application Number: 08/105,264

Issued: 1995-01-17

Expired: 2007-01-17

Classes: 430/135 ; 540/141

Field of search: 430/76,83,73,135 540/141,142,143

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