Toughened thermosetting structural materials

Details Toughened thermosetting structural materials Toughened thermosetting structural materials

1994-12-29

1997-02-25

Bell, James J.

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Coated or impregnated woven, knit, or nonwoven fabric which...

Coated or impregnated inorganic fiber fabric

428408, 428413, 428902, 525415, 427212, 427386, 442179, B32B 516

Patent

active

056057458

ABSTRACT:
The incorporation of 2 to 35 .mu.m particles of a differentially soluble engineering thermoplastic into heat curable epoxy resin systems significantly increases the toughness of such systems without loss of other desirable properties. These toughened epoxy resin systems are useful in preparing carbon fiber reinforced composites having compression strength after impact (CAI) of greater than 45. Ksi 310 MPa after a 1500 in-lb/in impact.

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European Search Report European Patent Appln. 90106513.6.
Bucknall and Partridge, "Phase Separation in Epoxy Resins Containing Polyurethersulfone," Polymer 24 639-646 (1983).

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