Prepreg for making a composite having high elongation and heat r

Details Prepreg for making a composite having high elongation and heat r Prepreg for making a composite having high elongation and heat r

1983-01-14

1984-11-13

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523467, 523468, 525113, C08L 6300

Patent

active

044826605

ABSTRACT:
A prepreg for making a composite is disclosed. The prepreg comprising reinforcing fibers impregnated with a resin composition comprising (A) an epoxy resin, (B) a reaction product of an epoxy resin and a butadiene-acrylonitrile copolymer having carboxyl groups on at least both terminals of the molecular chain of the copolymer, and (C) 4,4'-diaminodiphenylsulfone as a curing agent. A composite produced by curing this prepreg is high in both tensile elongation and heat resistance and is used with advantage as primary and secondary structural materials in aircraft.

REFERENCES:
patent: 4107128 (1978-08-01), Hosoi et al.
patent: 4269759 (1981-05-01), Edelman

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