Fiber-reinforced thermoplastic sheet

Details Fiber-reinforced thermoplastic sheet Fiber-reinforced thermoplastic sheet

1992-04-23

1994-05-31

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428246, 428248, 428253, 428254, 428284, 428287, 428296, 428300, 428408, 428902, 428920, 428921, B32B 502

Patent

active

053168348

ABSTRACT:
A fiber-reinforced thermoplastic sheet such as a flame-resistant, fiber-reinforced thermoplastic sheet comprising at least one first layer formed by impregnating a woven or knitted fabric of continuous carbon fibers with a matrix resin of a thermoplastic resin and at least one second layer formed by impregnating a fiber structure material of a heat-resistant fiber with a matrix resin of a thermoplastic resin, the above first layer(s) and the second layer(s) being laminated integrally, the second layer having the heat-resistant fibers substantially uniformly distributed in the matrix resin in the cross section of the sheet and substantially having no voids of which the diameter exceeds the fiber diameter of the heat-resistant fibers, the fiber structure material, used in the second layer, having a fiber-entangling strength of at least 1.0 kg/mm.sup.2 in any directions crossing at right angles; and a process for the production thereof.

REFERENCES:
patent: 3778334 (1973-12-01), Sturgeon
patent: 4992127 (1991-02-01), Hishi et al.
Database WPIL Week 3582, Derwent Publications Ltd., London, GB, AN 82-73611E & JP-B-60 050 146 (Toray Ind Inc) 7 Nov. 1985.

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