Injection molding articles of more than one resin component

Details Injection molding articles of more than one resin component Injection molding articles of more than one resin component

1979-05-08

1981-06-23

Hoag, W. E.

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

264245, 264255, 264294, 2643287, B29C 500, B29F 112

Patent

active

042750300

ABSTRACT:
Method for making an article from plural resin materials including blocking of injection channels with pairs of abutting plates and separating the plates to unblock a channel or channels to permit sequentially injecting different resin compositions.

REFERENCES:
patent: 818286 (1906-04-01), Porten
patent: 3051994 (1962-09-01), Carozzo
patent: 3632729 (1972-01-01), Bielfeldt
patent: 3859016 (1975-01-01), McGee et al.
870334 06001961 GBX 425 130
1018894 02001966 GBX 425 130

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