Compositions of polyaryloxypyridine oligomers with phthalonitrile end groups, their preparation and use for manufacturing polyaryloxypyridine co-phthalocyanine lattices
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United States of America Patent
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Aug 16, 1988
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N/A
app pub date -
Sep 16, 1986
filing date -
Sep 16, 1985
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Expired
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Abstract
The disclosed compositions of polyaryloxypyridine oligomers with phthalonile end groups are obtained by formation of a composition of polyaryloxypyridine oligomers with alkali phenolate end groups, followed with the reaction of said composition with 4-nitrophthalonitrile. Their average polycondensation degree may range from 1 to 50. They can be used in combination with a co-reactant derived from benzhydrol and containing one or two ortho-dinitrile functional groups, to constitute polyaryloxypyridine co-polyphthalocyanine lattices.
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