Process for producing a multilayer molded article

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

1991-05-13

1992-10-13

Tentoni, Leo B.

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

264295, B29C 4318

Patent

active

051548720

ABSTRACT:
A multilayer molded article includes a resin body and skin material with good quality and is produced by a process which includes the steps of: (a) supplying a skin material between a male mold and a female mold which are attached to a clamping mechanism, (b) starting closing of the male and female molds, and supplying a resin melt for the resin body between the skin material and the male or female mold while temporarily stopping the closing action of the mold or adjusting a closing rate at 30 mm/sec. or less when a cavity clearance between the molds is in the range between (C+100) mm and (C+5) mm (wherein C is the cavity clearance when the molding is finished), and (c) further closing the molds to the cavity clearance of C to finish the molding.

REFERENCES:
patent: 2938232 (1960-05-01), Martin
patent: 5034076 (1991-07-01), Masui et al.
English-Language Translation of Japan 61-137,713 (published Jun. 25, 1986).
Encyclopedia of Polymer Science and Technology, p. 436 (undated).

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