Two-stage cure polyimide oligomers

Details Two-stage cure polyimide oligomers Two-stage cure polyimide oligomers

2011-08-09

2011-08-09

Seidleck, James (Department: 1765)

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

Synthetic resins

From carboxylic acid or derivative thereof

C528S310000, C528S352000, C528S342000, C528S220000, C528S229000

Reexamination Certificate

active

07994274

ABSTRACT:
A method for using citraconic anhydride and itaconic anhydride as addition cure end caps in reactions for forming polyamic acid oligomers and polyimide oligomers, is provided. Prepregs and high temperature adhesives made from the resulting oligomers, as well as, high temperature, low void volume composites made from the prepregs, are also provided.

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