Method and appartus for forming composite products

Details Method and appartus for forming composite products Method and appartus for forming composite products

1986-07-24

1988-03-29

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 465, 264 466, 264 469, 264250, 264267, 264DIG83, 425127, 425129R, 425543, 425817R, C08G 1814, B29C 4514

Patent

active

047342307

ABSTRACT:
A composite plastic product is formed by a process which includes formation of a preform of high strength plastic having openings formed therethrough which are covered by a film barrier that is formed during molding of the preform; and wherein the preform is configured to be placed as a unit in a foam station at which material is foamed onto the insert without escape to its backside.

REFERENCES:
patent: 2811744 (1957-11-01), Baldanza
patent: 4228115 (1980-10-01), Gardner et al.
patent: 4309370 (1982-01-01), Sizemore et al.
patent: 4420447 (1983-12-01), Nakashima
patent: 4477504 (1984-10-01), Bailey et al.
patent: 4529639 (1985-07-01), Peoples, Jr. et al.

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