Heat resistant adhesive composition
AssigneeUbe Industries, Ltd.
InventorsHiroshi Inoue, Seiichirou Takabayashi, Tadao Muramatsu, Tsutomu Funagoshi, Tetsuji Hirano
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Abstract
The disclosed heat resistant adhesive composition comprises a polyimidesiloxane obtained from a biphenyltetracarboxylic acid or its derivative and a diamine composition comprising a diaminopolysiloxane and an aromatic diamine, an epoxy compound having an epoxy group, and an epoxy compound-hardening agent. An adhesive film and a composite sheet utilizing the heat resistant resinous composition are also disclosed.
Claims7
A heat resistant adhesive composition comprising
- 100 weight parts of a polyimidesiloxane obtained from a biphenyltetracarboxylic acid selected from the group consisting of 2,3,3',4'-biphenyltetracarboxylic acid, 3,3'4,4'-biphenyltetracarboxylic acid, dianhydrides of said acids and esters of said acids, and a diamine composition comprising a diaminopolysiloxane having the formula (I):
- ##STR5## wherein R is a divalent hydrocarbon group, each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently is a lower alkyl group or phenyl group, and n is an integer of 3-60, and an aromatic diamine, said diaminopolysiloxane and aromatic diamine being used in a ratio of 2:8 to 8:2;
- 1- 500weight parts of an epoxy resin having an epoxy group;
- and
- an epoxy resin-hardening agent in an amount of 0.01-60 weight parts per 100 weight parts of the epoxy compound.
A heat resistant adhesive composition film having a thickness of 1 to 200 .mu.m, wherein said adhesive composition comprises:
- 100 weight parts of a polyimidesiloxane obtained from a biphenyltetracarboxylic acid selected from the group consisting of 2,3,3',4'-biphenyltetracarboxylic acid, 3,3',4,4'-biphenyltetracarboxylic acid, dianhydrides of said acids and esters of said acids, and a diamine composition comprising a diaminopolysiloxane having the formula (I):
- ##STR6## wherein R is a divalent hydrocarbon group, each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently is a lower alkyl group or phenyl group, and n is an integer of 3-60, and an aromatic diamine, said diaminopolysiloxane and aromatic diamine being used in a ratio of 2:8 to 8:2;
- 1- 500weight parts of an epoxy resin having an epoxy group;
- and
- an epoxy resin-hardening agent in an amount of 0.01-60 weight parts per 100 weight parts of the epoxy compound.
A composite sheet comprising a metal film and an aromatic polyimide film adhered to each other by a heat resistant resinous composition film, wherein said resinous composition film comprises:
- 100 weight parts of a polyimidesiloxane obtained from a biphenyltetracarboxylic acid selected from the group consisting of 2,3,3',4'-biphenyltetracarboxylic acid, 3,3',4,4'-biphenyltetracarboxylic acid, dianhydrides of said acids and esters of said acids, and a diamine composition comprising a diaminopolysiloxane having the formula (I):
- ##STR7## wherein R is a divalent hydrocarbon group, each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently is a lower alkyl group or phenyl group, and n is an integer of 3-60, and an aromatic diamine, said diaminopolysiloxane and aromatic diamine being used in a ratio of 2:8 to 8:2;
- 1- 500weight parts of an epoxy resin having an epoxy group;
- and
- an epoxy resin-hardening agent in an amount of 0.01-60 weight parts per 100 weight parts of the epoxy compound.
Dependencies are inferred from the claim text.