Polyimide/metal composite sheet
AssigneeUbe Industries, Ltd.
InventorsAkinori Shiotani, Hiroaki Yamaguchi, Fumio Aoki, Katsutoshi Washio, Tatsuo Tsumiyama
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Abstract
A polyimide/metal composite sheet is composed of a metal film and a polyimide film polyimide which is prepared by reaction of asymmetric biphenyltetracarboxylic acid dianhydride and 1,3-bis(4-aminophenoxy)benzene. The polyimide film is firmly bonded to and hardly peelable from the metal film. The polyimide film can contain a solid filler.
Claims9
A composite sheet comprising a metal film and a polyimide film bonded to the metal film, wherein the polyimide film comprises a polyimide having a recurring unit of the following formula (1):
- 2
A polyimide film comprising a polyimide having a recurring unit of the following formula (1):
- 3
A composite sheet comprising a metal film and a polyimide film bonded to the metal film, wherein the polyimide film comprises 5 to 50 weight % of a polyimide having a recurring unit of the following formula (1):
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- and 95 to 50 weight % of a solid filler.
A polyimide film comprising 5 to 50 weight % of a polyimide having a recurring unit of the following formula (1):
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- and 95 to 50 weight % of a solid filler.
Dependencies are inferred from the claim text.