Compression molding using insulating films

Details Compression molding using insulating films Compression molding using insulating films

1989-07-10

1990-11-13

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264316, 264320, 264348, 425 89, 249112, B29C 4320, B29C 4352

Patent

active

049700448

ABSTRACT:
Deformable insulating films are used as mold liners in a compression molding process. The film delays the initial cooling of the preheated thermoplastic charge. The film also serves as a plastic charge carrier and convection barrier during transport of the plastic charge from a heating unit into the compression molding press.

REFERENCES:
patent: 2263792 (1941-11-01), Wood
patent: 3274298 (1966-04-01), Utiger
patent: 3681483 (1972-08-01), Moore
patent: 3883632 (1975-05-01), Petrochko
patent: 4306856 (1981-12-01), Arppol
patent: 4372900 (1983-02-01), Doerfling
patent: 4390489 (1983-06-01), Segal
patent: 4416716 (1983-11-01), Ichikawa
patent: 4440702 (1984-04-01), Susnjara
patent: 4595551 (1986-06-01), Maurer

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