Copolymers utilizing isoimides and method of preparing same
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United States of America Patent
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Sep 23, 1986
Grant Date -
N/A
app pub date -
Dec 27, 1983
filing date -
Dec 27, 1983
priority date (Note) -
Expired
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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.
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