High performance mixed bisimide resins and composites based ther

Details High performance mixed bisimide resins and composites based ther High performance mixed bisimide resins and composites based ther

1985-04-04

1986-02-04

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F22070

Patent

active

045687331

ABSTRACT:
The present invention relates to mixed bismaleimide/biscitraconimide resins. Mixtures of the two resins produces materials which have better handling, processing or mechanical and thermal properties, particularly in graphite composites, than materials made with the individual resins. The mechanical strength of cured graphite composites prepared from a 1:1 copolymer of such bisimide resins is excellent at both ambient and elevated temperatures. The copolymer mixture provides improved composites which are lighter than metals and replace metals in many aerospace applications.

REFERENCES:
patent: 4158730 (1979-06-01), Baumann
patent: 4323662 (1982-04-01), Oba
patent: 4463147 (1984-07-01), Diethelm

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