Copolymers utilizing isoimides and method of preparing same

Details Copolymers utilizing isoimides and method of preparing same Copolymers utilizing isoimides and method of preparing same

1983-12-27

1986-09-23

Lee, Lester L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524108, 524113, 524233, 524361, 524365, 526266, 528 26, 528 28, 528125, 528126, 528128, 528172, 528179, 528182, 528185, 528188, 528208, 528351, 528352, 528353, 549297, 549298, 549299, 549300, 549303, 549320, C08G 7310, C08G 7312

Patent

active

046136371

ABSTRACT:
A copolymer formed from an isoimide oligomer and another compound, such as an aryl sulfone, each of which has reactive functional terminal groups, such as ethylenic or acetylenic groups. The isoimide oligomer is soluble in the other compound, unreactive with the compound below a certain temperature and forms a liquid blend therewith. Upon heating the liquid blend above that certain temperature, the terminal groups on the isoimide oligomer and the other compound react with each other to form a copolymer. The liquid blends may be used to form encapsulants, coatings, films, and resin matrices for composites to provide resins with excellent high temperature properties.

REFERENCES:
patent: 3261811 (1966-07-01), Tatum
patent: 3271366 (1966-09-01), Kreuz
patent: 3282898 (1966-11-01), Angelo
patent: 3316212 (1967-04-01), Angelo
patent: 3413267 (1968-11-01), Kreuz
patent: 4485231 (1984-11-01), Landis
patent: 4495342 (1985-01-01), Landis
patent: 4496711 (1985-01-01), Landis

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