Polyimides from bis(4-aminophenoxy) naphthalene and 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane dianhydride
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United States of America Patent
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Jul 6, 1993
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app pub date -
Oct 3, 1991
filing date -
Oct 3, 1991
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Abstract
Polyimides having high glass transition temperature prepared from 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane dianhydride and 1,5-, 1,6-, 2,6- or 2,7-bis(4-aminophenoxy)napthalene.
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