Method of molding thick parts of fibrous-ply-reinforced resin

Details Method of molding thick parts of fibrous-ply-reinforced resin Method of molding thick parts of fibrous-ply-reinforced resin

1986-11-04

1988-07-19

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264137, 264258, B32B 3112, B32B 3104, B29C 6700

Patent

active

047583959

ABSTRACT:
The method comprises placing upper and lower stacks of unimpregnated fibrous reinforcement plies having a core of preimpregnated fibrous reinforcement plies therebetween in a mold and injecting chemically activated resin to impregnate the upper and lower stacks of unimpregnated fibrous reinforcement plies and initiate curing of heat-activatable resin of the core, and removing the molded part from the mold after curing and cooling of the part.

REFERENCES:
patent: 3408239 (1968-10-01), Wedin
patent: 4123488 (1978-10-01), Lawson
patent: 4404261 (1983-09-01), Canning et al.
"The Mechanical Properties of an SMC-R50 Composite", Douglas L. Denton, 1979, by Owens-Corning Fiberglas Corporation.
Pre-Impregnation, pp. 277-282, "SPI Handbook of Technology and Engineering of Reinforced Plastic/Composites", 1973.

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