Method for foam filling vinyl articles

Details Method for foam filling vinyl articles Method for foam filling vinyl articles

1989-09-18

1990-11-27

Simmons, David A.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

156 78, 156155, 156245, 264 454, 264310, 264313, B29C 3908, B29C 3912

Patent

active

049734385

ABSTRACT:
A method of making a foam filled polymer article includes the steps of compressing an expandable foam material (12) and containing the compressed expandable material (12) in a degradable container, such as a polyethylene bag (16). An outer polymer shell (10) is formed while degrading the container (16) therewithin, such as by rotation molding. The shell (10) is filled with the uncontained expandable foam material (12).

REFERENCES:
patent: 2989783 (1961-06-01), Slapnik
patent: 3607999 (1971-09-01), Corbett

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