Hot pressing method of forming a composite laminate containing e

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making

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264 454, 264 464, 264 465, 264257, 264258, 264273, 264321, B29C 4406, B29C 4410, B29C 4412

Patent

active

057923981

ABSTRACT:
A composite material comprises a web shaped material which is impregnated with a curable resin and which contains thermoplastic particles distributed in the web shaped material. The thermoplastic particles are of an expandable type but occur in the composite material in substantially unexpanded form. The curable resin is in a A- or B-stage. In addition, the invention comprises use of a composite material of this nature for producing laminates by warm pressing and expanding the thermoplastic particles and a method for producing the composite material.

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patent: 5164129 (1992-11-01), Douglas
patent: 5242637 (1993-09-01), Inoue et al.
patent: 5484815 (1996-01-01), Petersen et al.

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