Process for preparing plastic articles having an outer shell and

Details Process for preparing plastic articles having an outer shell and Process for preparing plastic articles having an outer shell and

1984-01-19

1985-05-28

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 457, 264 466, B29D 2700

Patent

active

045199647

ABSTRACT:
A process for preparing plastic articles having an outer rigid shell and an inner polystyrene foamed core, whereby pre-expanded polystyrene beads are foamed and fused inside a hollow thermoplastic shell, comprising, coating the inside of the shell prior to introducing the polystrene beads into the hollow shell, with a thermoplastic bonding layer.

REFERENCES:
patent: 2989783 (1961-06-01), Slapnik
patent: 3042967 (1962-07-01), Edberg
patent: 3309439 (1967-03-01), Nonweiler
patent: 3455483 (1969-07-01), Inklaar
patent: 3505137 (1970-04-01), Kliene
patent: 3814778 (1974-06-01), Hosoda et al.
patent: 3984451 (1976-10-01), Weiss
patent: 4144296 (1979-03-01), Dickens

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