In-mold coating of structural foams and resultant product

Details In-mold coating of structural foams and resultant product In-mold coating of structural foams and resultant product

1979-06-21

1980-12-16

Anderson, Philip

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

264 455, 264 464, 264 51, 264129, 264250, 264255, 264296, 264DIG5, 264DIG6, 264DIG83, 428 71, 428325, B32B 518, B29D 2700

Patent

active

042397960

ABSTRACT:
A method is disclosed comprising in-mold coating a structural foam part made from a thermoplastic aromatic polycarbonate resin or a thermoplastic ABS polymer resin with a thermosetting in-mold coating composition at a pressure of from about 25 to 50 p.s.i. and at a temperature not in excess of about 200.degree. F. for from about 1 to 10 minutes, preferably for from about 1 to 3 minutes, to provide hard, smooth and adherent coatings, said thermosetting in-mold coating composition comprising an ethylenically unsaturated polyester resin and an ethylenically unsaturated monomer(s) catalyzed with an organic perioxide initiator including an accelerator for the initiator.

REFERENCES:
patent: 3538043 (1970-11-01), Herold
patent: 3576909 (1971-04-01), Schmidle et al.
patent: 3813462 (1974-05-01), Roberts
patent: 3875275 (1975-04-01), Lemelson
patent: 3903224 (1975-09-01), Billiu
patent: 4032683 (1977-06-01), Coale
patent: 4053545 (1977-10-01), Fay
patent: 4076788 (1978-02-01), Ditto
patent: 4081578 (1978-03-01), Van Essen et al.
patent: 4082486 (1978-04-01), Cerano et al.

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