Stable isocyanate/epoxide prepolymers and thermoset polyurethane

Details Stable isocyanate/epoxide prepolymers and thermoset polyurethane Stable isocyanate/epoxide prepolymers and thermoset polyurethane

1985-08-12

1986-09-30

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 65, 528 66, 528 73, C08G 1858

Patent

active

046147861

ABSTRACT:
A process for preparing a polyurethane by reaction of A, a prepolymer prepared by the low temperature reaction of a polyisocyanate and a polyepoxide, with B, a polyol, is described.

REFERENCES:
patent: 3313747 (1967-04-01), Schramm
patent: 3847874 (1974-11-01), Murakami et al.
patent: 4022721 (1977-05-01), Ashida
patent: 4386191 (1983-05-01), DiSalvo et al.

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