Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1980-01-31
1981-05-26
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521176, C08G 1814
Patent
active
042699460
ABSTRACT:
A process for producing flexible polyurethane foams having improved load bearing properties which process includes the step of reaction of a polyisocyanate with a polymeric polyol in the presence of a catalyst, a blowing agent and a chain extender consisting of 1,2-diaminocyclohexane.
REFERENCES:
patent: 3789027 (1974-01-01), Traubel et al.
patent: 4136241 (1979-01-01), Ammann
The Goodyear Tire & Rubber Company
Welsh Maurice J.
Wolfe J. D.
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