Gas assist injection molding

Details Gas assist injection molding Gas assist injection molding

1998-07-10

2000-05-23

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264537, 264572, B29C 4906, B29C 4920

Patent

active

060662875

ABSTRACT:
A double-walled container is formed by gas assist injection molding. Thereafter, the container is further processed by 1) inserting a gas between the container layers, 2) injecting a colored liquid between the container layers, 3) evacuating the void space between the container layers, or 4) pressurizing the space between the container layers.

REFERENCES:
patent: 4101617 (1978-07-01), Friedrich
patent: 5407629 (1995-04-01), Schmidt et al.
patent: 5584470 (1996-12-01), Klotz
patent: 5611988 (1997-03-01), Mahajan
patent: 5928600 (1999-07-01), Chu

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