Method of manufacturing a plastic motor vehicle door

Details Method of manufacturing a plastic motor vehicle door Method of manufacturing a plastic motor vehicle door

1990-04-26

1991-07-23

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264255, 264257, 264273, 425543, 425110, B29C 4513, B29C 4514

Patent

active

050341731

ABSTRACT:
A two-staged or sequential reaction injection molding (RIM) method of manufacturing a glass fiber mat reinforced plastic part having at least one appearance surface in which a high viscosity RIM material and a low viscosity RIM material are sequentially injected into a mold cavity containing at least one reinforcing member of a glass fiber mat.

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