Title: In-mold coating of structural foams and resultant product

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.

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Inventors: Shanoski, Henry (Akron, OH, US)
Griffith, Richard M. (Akron, OH, US)

Application Number: 050902
Filing Date: 1979-06-21
Publication_date: 1980-12-16
Assignee: The General Tire & Rubber Company (Akron, OH)
Primary Class(es): 428/319.7 264/45.5, 264/46.4, 264/51, 264/129, 264/250, 264/255, 264/296, 264/DIG5, 264/DIG6, 264/DIG83, 428/71, 428/325
Other Classes:
US Patent Ref:

3538043	Nov, 1970	Herold	260/40.
3576909	Apr, 1971	Schmidle et al.	528/289.
3813462	May, 1974	Roberts	264/46.
3875275	Apr, 1975	Lemelson	264/46.
3903224	Sep, 1975	Billiu	264/46.
4032683	Jun, 1977	Coale	264/129.
4053545	Oct, 1977	Fay	264/DIG.
4076788	Feb, 1978	Ditto	264/279.
4081578	Mar, 1978	Van Essen et al.	264/296.
4082486	Apr, 1978	Cerano et al.	425/550.

Other Refs:
Primary Examiner: Anderson, Philip
Assistant Examiner:
Attorney: