Method for molding precured high temperature resins

Details Method for molding precured high temperature resins Method for molding precured high temperature resins

1987-02-02

1988-09-06

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264258, 264313, 26433112, B29C 4310, B29C 4330

Patent

active

047691972

ABSTRACT:
A method for molding composite prepregs using high temperature substantially cured thermosetting resins that reduces fiber damage. Fiber plies are impregnated with solutions of high temperature substantially cured thermosetting resins and the plies are stacked to form a prepreg. A solid flowable particulate silicone rubber is caused to apply pressure to the prepreg to form a composite.
This invention makes a significant advance in the field of molding high temperature resin composites by providing methods of molding that reduce fiber damage, shorten molding time and result in denser parts.

REFERENCES:
patent: 3666600 (1972-05-01), Yoshino
patent: 3772418 (1973-11-01), Johnson
patent: 3966864 (1976-06-01), Stenzenberger
patent: 4012415 (1977-05-01), Chang
patent: 4058581 (1977-11-01), Park
patent: 4409048 (1983-10-01), Hatch

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