Method for molding a laminated molded article using a vented mol

Details Method for molding a laminated molded article using a vented mol Method for molding a laminated molded article using a vented mol

1991-10-21

1994-01-25

Kuhns, Allan R.

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

425812, B29C 4320

Patent

active

052813835

ABSTRACT:
In a method and device for combining a resin core member and a surface skin member at the same time as molding the resin core member into a desired shape, air and reaction gas trapped in the die cavity is removed through air vent pieces embedded in the die surfaces of the upper and lower dies so that a laminated molded article with a favorable appearance free from creases can be obtained. The air vent pieces may be either porous or provided with minute slits so that air and gas may be removed but the resin material may not seep through.

REFERENCES:
patent: 3452124 (1969-06-01), Knapp
patent: 4139177 (1979-02-01), Hanning
patent: 4165062 (1979-08-01), Mitchell
patent: 4267142 (1981-05-01), Lankheet
patent: 4436497 (1984-03-01), Dahl et al.
patent: 4740346 (1988-04-01), Freeman
patent: 4873045 (1989-10-01), Fujita et al.
patent: 4952358 (1990-08-01), Okina et al.

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