Process for forming composite article

Details Process for forming composite article Process for forming composite article

1984-03-15

1986-10-07

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

264225, 264227, 264317, 264338, 249 91, 249114R, B29C 3340

Patent

active

046158553

ABSTRACT:
A process for forming a hollow, cured composite article. The process includes steps of making a plug from a meltable material. The plug is covered with a polymerizable material and the covered plug is inserted into a cavity formed in a thermally-expansive and heat-resistant polymer held within a rigid container. The almost filled container is covered and the container and part are heated to cause curing of the polymerizable covering. The cured assembly is removed from the thermally-expansive and heat-resistant polymer and heated to an extent sufficient to melt the core.

REFERENCES:
patent: 2941277 (1960-06-01), Ganz
patent: 3907949 (1975-09-01), Carlson
patent: 3939898 (1976-02-01), Petro
patent: 3957382 (1976-05-01), Greuel
patent: 4225546 (1980-09-01), Ohno
patent: 4388263 (1983-06-01), Prunty

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