Sprayable polyurethane composition and method of preparation

Details Sprayable polyurethane composition and method of preparation Sprayable polyurethane composition and method of preparation

1986-03-28

1988-05-31

Welsh, Maurice J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524874, 524875, 528 51, 528 55, 528 56, 528 58, 528 80, 528 85, C08G 1830

Patent

active

047482010

ABSTRACT:
An aromatic, isocyanate-base, polyurethane polymer and a process for preparing the polymer. The process comprises reacting, such as by spraying onto a substrate or an open mold, a caprolactone polyol with a methylene dipara phenylene isocyanate in the presence of a catalytic amount of a metallo catalyst, and a fast-curing and cross-linking amount of a curing agent comprising a polyalkanol amine, particularly a triethanol amine, to provide a fast-reaction aliphatic poilyurethane polymer. The reaction of difunctional caprolactone polyols with low functionality MDI in the presence of a tin catalyst and triethanol amine provides for flexible and rigid polymer films of substantially no porosity.

REFERENCES:
patent: 4080318 (1978-03-01), Smith et al.
patent: 4251427 (1981-02-01), Recker et al.

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