Process for producing multilayer molded article

Details Process for producing multilayer molded article Process for producing multilayer molded article

1991-12-20

1994-05-03

Woo, Jay H.

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

264257, 264259, 264273, B29C 4514

Patent

active

053085701

ABSTRACT:
A multilayer molded article having good appearance is produced by providing a preheated fiber-reinforced resin sheet between a pair of upper and lower molds, and supplying a thermoplastic resin melt and optionally a foam sheet between the upper mold and the fiber-reinforced resin sheet. The thermoplastic resin melt is supplied through a resin supplying opening provided in the lower mold, and through a hole made in the fiber-reinforced resin sheet and the foam sheet. During the supply of the resin melt or as soon as the resin supply is finished, the molds are closed to further flow, and the resin melt is formed to produce a mu molded article made of the fiber-reinforced resin sheet, a skin layer of the thermoplastic resin and optionally the foam sheet therebetween.

REFERENCES:
patent: 4783298 (1988-11-01), Oda
patent: 4933131 (1990-06-01), Okey et al.

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