Sprayed polyurethane foams employing reactive amines to improve

Details Sprayed polyurethane foams employing reactive amines to improve Sprayed polyurethane foams employing reactive amines to improve

1981-11-02

1983-04-26

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 521164, 521167, C08G 1814

Patent

active

043813534

ABSTRACT:
A polyurethane foam formulation for use primarily in sprayed applications has been discovered which provides a smoother than average foam surface. The formulation includes the addition of a primary or secondary mono or polyamine having a hydrogen functionality of two or greater. The compressive strengths of the resultant foams are equivalent to or greater than equivalent formulations without the amines, even though the amines also reduce fluorocarbon loss yielding lower density foams.

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