Method for plastic coating foam molding insert

Details Method for plastic coating foam molding insert Method for plastic coating foam molding insert

1990-01-04

1991-10-29

Simmons, David A.

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

264259, 264261, 264262, 264279, 156245, B29C 4100

Patent

active

050614282

ABSTRACT:
A method for forming a plastic coating for a foam molding insert or retainer member includes the steps of preforming an insert member having openings therethrough; partially sealing the openings and/or the perimeter edge of the insert member with protuberances formed on a conforming buck; completely sealing the openings and/or the perimeter edge by spraying polymeric material against the insert and the protuberances only in the vicinity of the hole and the perimeter edge to form seals without covering the insert with a film wrap; curing the seals to provide a leak proof patch which prevents foam leakage through the insert during a foam molding process.

REFERENCES:
patent: 3816580 (1974-06-01), Valyi
patent: 4375445 (1983-03-01), Cole et al.
patent: 4473423 (1984-09-01), Kolff
patent: 4587153 (1986-05-01), Sella
patent: 4610835 (1986-09-01), Ghavamikia
patent: 4675061 (1987-06-01), Mead
patent: 4678531 (1987-07-01), Metzger et al.
patent: 4710250 (1987-12-01), Kojima et al.
patent: 4818211 (1989-04-01), Weidman et al.
patent: 4913786 (1990-04-01), Horiki et al.

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