Method for making rim elastomers using a catalyst system which i

Details Method for making rim elastomers using a catalyst system which i Method for making rim elastomers using a catalyst system which i

1981-05-29

1982-11-16

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

525131, 528 53, C08G 1814

Patent

active

043595405

ABSTRACT:
The invention is a method for making reaction injection molded polyurethane of improved properties. The method comprises injecting into a mold cavity a high molecular weight polyhydric polyether, a low molecular weight active hydrogen containing compound of at least two functionality, a polyisocyanate and a catalyst comprising polymers substantially without active hydrogens containing tertiary amine moieties. This catalyst results in improved paintability when using high solids paint. Reaction injection molded elastomers are useful as molded articles of commerce including, but not limited to, vehicle body parts.

REFERENCES:
patent: 4115321 (1978-09-01), Sandner et al.
patent: 4143003 (1979-03-01), Haas et al.
patent: 4184023 (1980-01-01), Cuscurida
patent: 4218543 (1980-08-01), Weber et al.

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