Electrically conductive polyimide film containing gold (III) ions, composition, and process of making
First Claim
1. An electrically conductive, thermooxidatively stable polyimide comprising an intimate admixture of the following components:
- a polyimide 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;
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; and
gold (III) ions in an amount sufficient to provide between about 17 and 21 percent by weight of gold (III) ions, based on the weight of the electrically conductive, thermooxidatively stable polyimide.
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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.
18 Citations
12 Claims
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1. An electrically conductive, thermooxidatively stable polyimide comprising an intimate admixture of the following components:
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a polyimide 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;
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; andgold (III) ions in an amount sufficient to provide between about 17 and 21 percent by weight of gold (III) ions, based on the weight of the electrically conductive, thermooxidatively stable polyimide. - View Dependent Claims (2, 3, 4)
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5. A process for preparing an electrically conducting, thermooxidatively stable polyimide film, which process comprises:
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preparing a solution of a polyamic acid in a polar organic solvent by reacting in a polar organic solvent 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;
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;adding to the solution of the polyamic acid in the polar organic solvent gold (III) ions in an amount sufficient to provide between about 17 and 21 percent by weight of gold (III) ions, based on the weight of the electrically conducting, thermooxidatively stable polyimide film; fabricating a film layer of the solution of the polyamic acid in the polar organic solvent containing gold (III) ions on a surface of a substrate; imidizing the film layer and recovering a gold (III) ion-containing polyimide film from the substrate. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification