Method for the preparation of X-form metal phthalocyanine and X-form metal free compounds
AssigneeXerox Corporation
InventorsClifford H. Griffiths, Richard C. Keezer
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Abstract
A method for the preparation of X-form metal phthalocyanine and X-form metal-free compounds which comprises heating any suitable metal phthalocyanine polymorph or compound to from about 600.degree. to about 650.degree. and cooling the resulting product formed thereby is herein disclosed.
Claims11
A method of preparing X-form metal phthalocyanine which comprises heating a metal phthalocyanine polymorph to from about 600.degree. to about 650.degree. C and allowing said polymorph to cool.
A method of preparing X-form metal phthalocyanine which comprises heating a metal phthalocyanine polymorph selected from the group consisting of alpha copper phthalocyanine, beta copper phthalocyanine, alpha cobalt phthalocyanine, beta cobalt phthalocyanine, alpha lead phthalocyanine, beta lead phthalocyanine, alpha zinc phthalocyanine, beta zinc phthalocyanine, and mixtures thereof from about 600.degree. to about 650.degree. C and allowing said polymorph to cool.
A method of preparing X-form metal phthalocyanine which comprises heating a metal phthalocyanine polymorph selected from the group consisting of alpha copper phthalocyanine, beta copper phthalocyanine and mixtures thereof to from about 600.degree. to about 650.degree. C and allowing said polymorph to cool.
Dependencies are inferred from the claim text.