Method of forming an expanded composite

Details Method of forming an expanded composite Method of forming an expanded composite

1994-04-12

1995-12-12

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 464, 264 465, 264 466, 264 469, 264 54, B29C 6722

Patent

active

054747210

ABSTRACT:
Process using low to medium temperature thermoset epoxy composite materials and an expandable epoxy matrix material to efficiently form high strength composite parts of divers shapes in a single-one-step process. The composite material is placed within the periphery of a mold and expandable epoxy matrix material is placed between the layers of the composite material either before or after closing the mold and, then, subjecting the mold and its contents to heat which activates the epoxy resins in both the composite material and the matrix material causing the matrix material to expand thereby compressing the composite material in order to produce a competent composite part.

REFERENCES:
patent: 3873654 (1975-03-01), Smith
patent: 3879245 (1975-04-01), Fetherston et al.
patent: 3940468 (1976-02-01), Tunstall
patent: 4124670 (1978-11-01), Cecka et al.
patent: 5230844 (1993-07-01), Macaire et al.
Disclosure Document of Robert B. Stevens (Apr. 18, 1991) No. 280 072.

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