High temperature resistant molded elastomer

Details High temperature resistant molded elastomer High temperature resistant molded elastomer

1991-12-16

1993-07-27

Welsh, Maurice J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 55, 528 57, 528 60, 528 61, 528 63, 528 64, 528 65, 528 66, C08G 1810

Patent

active

052311597

ABSTRACT:
A molded elastomer having high and low temperature resistance in dynamic applications. The elastomer includes the reaction product of an amine or hydroxy terminated polyol having an unsaturated level of less than about 0.06 milliequivalents per gram polyol, an hydroxyl or amine terminated chain extender, and a polyisocyanate-containing prepolymer capable of rapid reaction times with said chain extender when admixed together in a mold.

REFERENCES:
patent: 4297444 (1981-10-01), Gilbert et al.

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