Adhesive tape for electronic parts

Details Adhesive tape for electronic parts Adhesive tape for electronic parts

1997-11-07

1999-04-06

Ahmad, Nasser

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

428 415, 428 418, 428 419, 428212, 428214, 428447, 4284735, 524 99, B32B 712

Patent

active

058915400

ABSTRACT:
This invention provide an adhesive tape and a liquid adhesive for electronic parts having sufficient thermal resistance and reliability. The adhesive tape comprises an adhesive layer composed of at least a polyimide comprising the repeating units represented by the formulas (1) and (2), provided on surface of a heat resistance film or a release film: ##STR1## wherein X is --SO.sub.2 -- and/or --C(.dbd.O)--OCH.sub.2 CH.sub.2 O--C(.dbd.O)--, Ar is a divalent group containing aromatic rings, and R is an alkylene group having 1 to 10 carbon atoms or --CH.sub.2 OC.sub.6 H.sub.4 --, and n means an integer of 1 to 20.

REFERENCES:
patent: 4063984 (1977-12-01), Critchley

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