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US 5,292,812 AGranted
Adhesive of epoxy resin, CTBN and maleimide
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsHajime Yamazaki, Hiroyuki Wakamatsu, Toshinobu Takahashi, Naoya Adachi
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Abstract
Adhesive compositions of a selected class of epoxy resins combined with a selected class of carboxylic group-containing acrylonitrile-butadiene and methacrylonitrile-butadiene copolymers, maleimide derivatives and an imidazole compound. The resultant compositions are electrically insulative, thermally resistant, highly capable of fabrication at low pressure and storage stable.
Claims8
An adhesive composition consisting essentially of:
- (I) an epoxy resin selected from the group consisting of a glycidyl ether epoxy resin, a cresol-novolak epoxy resin, a glycidyl ester epoxy resin, an aliphatic epoxy resin, an alicyclic epoxy resin and a halogenated epoxy resin;
- (II) a carboxyl group-containing acrylonitrile-butadiene or methacrylonitrile-butadiene copolymer or a combination thereof in an amount of from 5 to 50 parts by weight per 100 parts by weight of the epoxy resin (I);
- (III) a maleimide compound in an amount that satisfies the following equation:
- 1.ltoreq.(II)/(III).ltoreq.10 on a weight basis;
- and
- (IV) an imidazole compound in an amount of from 0.5 to 20 parts by weight per 100 parts by weight of the epoxy resin (I).
3 more elements
Dependencies are inferred from the claim text.