Patent ID: 6268033
Filing Date: 2001-07-31
Classification: C09J,H01L,Y10T

Abstract:
A heat resisting adhesive composition for electronic parts which comprises a resin mixture of (A) 100 parts by weight of a polyimide comprising 100-30% by mol of at least one of the repeating units represented by the following formulas (1a) and (1b) and 0-70% by mol of at least one of the repeating unit represented by the following formulas (2a) and (2b) and (B) 5-150 parts by weight of a polyimide consisting of the repeating unit represented by the following formula (2a): ##STR7##wherein Ar represents a divalent group selected from the following formulas containing aromatic rings: ##STR8##wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which are identical or different represent each a hydrogen atom, an alkyl group having 1-4 carbon atoms or an alkoxy group having 1-4 carbon atoms, provided that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are not hydrogen atoms at the same time: ##STR9##wherein R is an alkylene group having 1 to 10 carbon atoms or --CH.sub.2 OC.sub.6 H.sub.4 --, the methylene group of which attaches to Si, and n means an integer of 1 to 20.