Polymerization products of polyimide derivatives having unsatura

Details Polymerization products of polyimide derivatives having unsatura Polymerization products of polyimide derivatives having unsatura

1980-01-25

1981-10-27

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 75, 526258, 526262, C08F 2606

Patent

active

042974674

ABSTRACT:
Novel compositions comprising polymerization products of polyimide derivatives having unsaturated amide groups and processes for their preparation are disclosed herein. These new compositions are primarily polymers of derivatives of anhydride-terminated aromatic polyimides from which these derivatives are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups as hemi-amic acid groups or their derivatives. These derivative compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures and in accordance with the practive of this invention to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are polymers from monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides.

REFERENCES:
patent: 4168360 (1979-09-01), D'Alelio
patent: 4168367 (1979-09-01), D'Alelio

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