Method for forming an in-mold coated fiber reinforced part

Details Method for forming an in-mold coated fiber reinforced part Method for forming an in-mold coated fiber reinforced part

1987-03-16

1989-02-28

Lowe, James

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

264 405, 264246, 264DIG59, 4284237, 4284244, B29C 4320

Patent

active

048083615

ABSTRACT:
A method of making a fiber reinforced part by compression molding under heat and pressure a glass fiber reinforced thermosetting resin composition at an initial high pressure for a short period of time and then substantially reducing the pressure for a longer period of time to form an almost cured FRP part at which time there is applied to the exterior or outer surface of the FRP part an in-mold coating composition and heat and pressure are continued to cure the in-mold coating composition and to complete the cure of the FRP part. During the molding process the temperature gradient across, or the temperature non-uniformities of, the molding or working surfaces of the mold halves is less than about 5.degree. C.

REFERENCES:
patent: 3681483 (1972-08-01), Moore
patent: 4076788 (1978-02-01), Ditto
patent: 4353857 (1982-10-01), Rey et al.
patent: 4367192 (1983-01-01), Arnason
patent: 4473215 (1984-09-01), Rathfon, II et al.
patent: 4489031 (1984-12-01), Oglihara

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