Adduct of a carbinol-containing polyimide oligomer terminated wi

Details Adduct of a carbinol-containing polyimide oligomer terminated wi Adduct of a carbinol-containing polyimide oligomer terminated wi

1986-07-01

1989-04-11

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525423, C08G 5906, C08G 7310

Patent

active

048207799

ABSTRACT:
A carbinol-containing polyimide oligomer terminated with epoxide-reactive end groups has the structure ##STR1## wherein Ar is ##STR2## R.sup.1 and R.sup.2 are independently divalent organic radicals; R.sup.3 is a trivalent organic radical; Y is an epoxide-reactive group; m is 0 or 1 and n is 0-10. Suitable epoxide-reactive groups include a phenol, thiol, amine, or carboxyl group. Polyimide-polyepoxide adducts are prepared by reacting the polyimides with a polyepoxide, preferably a diepoxide used in excess. The polyimide oligomers are useful as coatings or adhesives. The adducts are useful as adhesives, for composites, and particularly for impregnating the fiberglass sheets which are used to form circuit boards.

REFERENCES:
patent: 4277583 (1981-07-01), Waitkus et al.
patent: 4410664 (1983-10-01), Lee
patent: 4487894 (1984-12-01), Lee
patent: 4489185 (1984-12-01), Schoenberg
patent: 4519941 (1985-05-01), Anderson

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