Low-shrink in-mold coating

Details Low-shrink in-mold coating Low-shrink in-mold coating

1978-11-08

1980-02-19

Kendell, Lorraine T.

Stock material or miscellaneous articles

Composite

Of polyamidoester

264241, 264255, 264257, 264259, 428411, 428482, 528 75, 260 37N, B32B 904, B32B 2740

Patent

active

041895177

ABSTRACT:
A laminate comprises an adherent in-mold thermoset coating composition on a thermoset polyester glass fiber substrate, the coating composition comprising essentially the reaction product of an unsaturated aliphatic fumarate polyester diol, a saturated polyester diol flexibilizer, a cross-linking aliphatic polyol having from 3 to 6 OH groups, a diisocyanate in an amount by weight sufficient to provide from about 50 to 120%, preferably from about 80 to 99%, of the stoichiometric amount of --NCO groups required to react with all of the active hydrogen atoms in the coating composition and an ethylenically unsaturated monomer sufficient to polymerize with and crosslink the unsaturated polyester in admixture with a minor amount by weight of polyvinyl acetate which serves to reduce or eliminate shrinkage of the coating composition.

REFERENCES:
patent: 3254060 (1966-05-01), Connolly et al.
patent: 3538043 (1970-11-01), Herold
patent: 3576909 (1971-04-01), Schmidle
patent: 3741799 (1973-06-01), Kulhanek
patent: 3772241 (1973-11-01), Kroekel
patent: 3838093 (1974-09-01), Owston
patent: 3876728 (1975-04-01), Kuroda et al.
patent: 3883612 (1975-05-01), Pratt et al.
patent: 4051085 (1977-09-01), Hess et al.
patent: 4081578 (1978-03-01), Van Essen et al.

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