Method for rotational molding

Details Method for rotational molding Method for rotational molding

1988-06-24

1990-12-25

Woo, Jay H.

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

264257, 264311, 249134, 249135, B29C 4104

Patent

active

049801120

ABSTRACT:
A method for rotational molding a thermoplastic article using a mold made of a fiber reinforced thermoset resin which has a heat distortion point above the melting point of the thermoplastic material. Metal or other materials may be used to provide different coefficients of heat transfer at preselected portions of the mold. The entire mold may include a thermal coefficient modifier to increase the heat transfer rate of the mold uniformly over the entire mold in addition to the preselected portions.

REFERENCES:
patent: 2750632 (1965-06-01), Kish
patent: 3153915 (1964-10-01), Deith
patent: 3292894 (1966-12-01), Falkenau
patent: 3386503 (1968-06-01), Corning
patent: 3607569 (1971-09-01), Greenwell
patent: 3622659 (1971-11-01), Sonia
patent: 4049767 (1977-09-01), Vaidya
patent: 4105184 (1978-08-01), Sumitomo
patent: 4146565 (1979-03-01), Quraishi
patent: 4394340 (1983-07-01), Tarumi
patent: 4601867 (1986-07-01), Martell

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