Thermoplastic composite material having improved toughness and m

Details Thermoplastic composite material having improved toughness and m Thermoplastic composite material having improved toughness and m

1991-12-12

1993-11-23

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428280, 428282, 428290, 428402, D04H 108, D04H 116, B32B 516

Patent

active

052642747

ABSTRACT:
The composite material having improved toughness is produced by preparing a laminate from reinforcing fibers and a thermoplastic resin; heating the laminate at a temperature higher than a melting point of the thermoplastic resin under pressure; quenching the composite material at an initial cooling rate of 100.degree. C./min or more, thereby providing the PEEK in the resulting composite material with a degree of crystallization equal to or lower than 75% of the maximum degree of crystallization of the thermoplastic resin.

REFERENCES:
patent: 5019450 (1991-05-01), Cogswell et al.

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