Compositions – Electrically conductive or emissive compositions – Free metal containing
Patent
1994-07-22
1996-11-19
McGinty, Douglas J.
Compositions
Electrically conductive or emissive compositions
Free metal containing
427125, 4271265, 106403, H01B 122, H01B 120, H01B 112, B05D 512
Patent
active
055759556
ABSTRACT:
An electrically conductive, thermooxidatively stable poltimide, especially a film thereof, is prepared from an intimate admixture of a particular polyimide and gold (III) ions, in an amount sufficient to provide between 17 and 21 percent by weight of gold (III) ions, based on the weight of electrically conductive, thermooxidatively stable polyimide. The particular polyimide is prepared from a polyamic acid which has been synthesized from a dianhydride/diamine combination selected from the group consisting of 3,3',4,4'-benzophenonetetracarboxylic dianhydride and 2,2-bis[4-(4 -aminophenoxy)phenyl]hexafluoropropane; 3,3',4,4'-benzophenonetetracarboxylic dianhydride and 4,4'-oxydianiline; 2,2'-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride and 4,4'-oxydianiline; and 3,3'4,4'-benzophenonetetracarboxylic dianhydride and 2,2-bis(3-aminophenyl)hexafluoropropane.
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Caplan Maggie L.
St. Clair Anne K.
Stoakley Diane M.
Helfrich George F.
McGinty Douglas J.
The United States of America as represented by the Administrator
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