Thermoset molding compositions

Details Thermoset molding compositions Thermoset molding compositions

1986-07-03

1987-06-16

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 521173, 521174, 521176, 528 49, 528 75, C08G 1814

Patent

active

046736964

ABSTRACT:
Disclosed is a storage stable blend of a long chain polyol and a short chain diol wherein the diol is present in an amount whereby the diol and polyol form an incompatible blend. The blend is rendered storage stable by the addition of a compatibilizing amount of an ethylenically unsaturated esterol. Alternatively, the compatibilizing agent comprises an adduct of the ethylenically unsaturated esterol and a polyol, e.g. glycol. The storage stable blends find utility in making rigid, tough RIM parts.

REFERENCES:
patent: 3929730 (1975-12-01), Graefe et al.
patent: 3993576 (1976-11-01), Barron
patent: 4082634 (1978-04-01), Chang
patent: 4213837 (1980-07-01), Bristowe et al.
patent: 4220732 (1980-09-01), McBrayer
patent: 4374229 (1983-02-01), Dunnavant et al.
patent: 4385133 (1983-05-01), Alberino et al.

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