Adhesive sealant for bonding metal parts to ceramics

Details Adhesive sealant for bonding metal parts to ceramics Adhesive sealant for bonding metal parts to ceramics

1997-04-29

1999-08-10

Marquis, Melvyn I.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156330, 1563309, 428448, 428450, 428441, 428414, 428416, 428413, 525423, 525476, 524366, 524317, 524233, 524377, C09J18304, C09J16300

Patent

active

059353724

ABSTRACT:
Disclosed is a blend capable of forming a semi-interpenetrating network when cured of (A) a solution of about 30 to about 50 wt % solids in an organic solvent of a fully imidized polyimidesiloxane and (B) about 5 to about 30 pbw per 100 pbw of the polyimidesiloxane of an epoxy resin which comprises a cycloaliphatic epoxy and an epoxy curing agent. The polyimidesiloxane is the reaction product of an aromatic dianhydride and diamine. The diamine is about 5 to about 80 mole % non-siloxane containing aromatic diamine and the remainder a siloxane diamine, where the siloxane diamine is about 40 to about 80 wt % of the weight of the polyimidesiloxane. The blend is used to bond metal parts to ceramic packages.

REFERENCES:
patent: 4480009 (1984-10-01), Berger
patent: 5180627 (1993-01-01), Inoue et al.
patent: 5252703 (1993-10-01), Nakajima et al.
patent: 5654081 (1997-08-01), Todd
patent: 5677393 (1997-10-01), Ohmori et al.

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