Method of forming reinforced foam structure

Details Method of forming reinforced foam structure Method of forming reinforced foam structure

1980-11-13

1983-02-08

Anderson, Philip E.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 464, 264258, 264DIG65, B29D 2704

Patent

active

043729002

ABSTRACT:
A method of forming a reinforced foam structure or laminate wherein a low density, fast reacting liquid foamable resin is sprayed under pressure into a low density fiberglass mat to penetrate and wet the fibers. The foam then expands within the fiberglass mat, forming a low density foam sheet having fiberglass distributed substantially continuously therethrough. A support or cover sheet is preferably laminated to the foam-fiberglass sheet and the laminate is formed under heat and pressure in a die into a contoured shape, simultaneously curing the resin foam.

REFERENCES:
patent: 2879197 (1959-03-01), Muskat et al.
patent: 3025202 (1962-03-01), Morgan et al.
patent: 3193598 (1965-07-01), Schafer
patent: 3395201 (1968-07-01), Kalwaites
patent: 3867494 (1975-02-01), Rood et al.
patent: 3895159 (1975-07-01), Yoshimura
patent: 4078100 (1978-03-01), Doerfling
patent: 4096303 (1978-06-01), Doerfling
patent: 4241131 (1980-12-01), Bailey

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