Reaction injection molded polyurethanes employing high molecular

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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252182, 521161, 521163, 521164, 521167, 521175, 521902, 528 73, 528 76, 528 77, 528 78, 264 51, 2643286, C08G 1814, C08G 1832, C08G 1848, C08G 1865

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045309418

ABSTRACT:
Reaction injection molded polyurethanes prepared from a composition comprising (A) a relatively high molecular weight polyol, (B) a chain extender and (C) a polyisocyanate or polyisothiocyanate are improved by replacing a portion of the relatively high molecular weight polyol with an aminated or partially aminated polyoxyalkylene material.

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