Process for producing expanded plastics with skin

Details Process for producing expanded plastics with skin Process for producing expanded plastics with skin

1993-03-26

1994-11-22

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264466, 264102, 264572, B29C 6722

Patent

active

053666747

ABSTRACT:
A process for producing expanded plastic with a skin and a molding apparatus therefor, the process including blowing a parison being held in a closed blow mold to obtain a hollow article, filling the hollow article with thermoplastic preexpanded resin beads before the hollow article is cooled to solidify, heating and fusing said beads, and cooling the expanded plastic. A hollow article and an expanded body are completely fused together, and improved productivity is obtained.

REFERENCES:
patent: 3619436 (1971-11-01), Gruss et al.
patent: 3801244 (1974-04-01), Eisenberg
patent: 4115491 (1978-09-01), Hanning
patent: 4144296 (1979-03-01), Dickens
patent: 4546899 (1985-10-01), Williams
patent: 4990083 (1991-02-01), Bernhardt

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