Molded plastic article and method of making the same

Details Molded plastic article and method of making the same Molded plastic article and method of making the same

1977-09-06

1978-10-31

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264137, 264250, 264255, 264257, 264265, 264328, B29C 500, B29D 302, B29F 100

Patent

active

041234880

ABSTRACT:
A composite molded article composed of a backing layer of fiber-reinforced thermosetting resin and an outer layer of a thermoplastic resin which is mechanically interlocked to the backing layer through the fiber reinforcement. In fabrication, a layer of fibrous material impregnated with an uncured thermosetting resin is placed in a mold and a molten thermoplastic resin is injected into the mold. The heat of the thermoplastic resin serves to cure the thermosetting resin and the resulting composite article has a rigid, high strength backing formed of the reinforced thermosetting resin and has a smooth thermoplastic outer surface which is receptive to surface finishes.

REFERENCES:
patent: 2802766 (1957-08-01), Leverenz
patent: 3058165 (1962-10-01), Purvis
patent: 3250640 (1966-05-01), Varlet
patent: 3971837 (1966-07-01), Hasegawa

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