Method for molding composite, structural plastics, and objects m

Details Method for molding composite, structural plastics, and objects m Method for molding composite, structural plastics, and objects m

1996-09-17

1998-12-15

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264 406, 264313, 264317, B29C 3902

Patent

active

058492291

ABSTRACT:
A method for producing composite, structural plastic parts in traditional foundry molds, including sand, permanent, die-cast, wax and investment molds. Short fiber length fibers reinforcing low viscosity thermoset resins, and in particular resole phenolics, provides a pourable low bulk density polymer compound with minimal externally applied thermal requirements during molding and post cure when required. Foundries can consider metal parts replacement with this new method. It permits foundries to actually produce composite, structural plastic parts with superior mechanical and thermal properties. This permits them to provide plastic products on a competitive basis with the compression and injection molders.

REFERENCES:
patent: 3692892 (1972-09-01), Lemelson
patent: 3975479 (1976-08-01), McClean
patent: 4355128 (1982-10-01), Mercer
patent: 5045251 (1991-09-01), Johnson
patent: 5176864 (1993-01-01), Bates et al.
patent: 5280053 (1994-01-01), Dearlove et al.

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