Foamed polyurea elastomer-rigid and close-celled

Details Foamed polyurea elastomer-rigid and close-celled Foamed polyurea elastomer-rigid and close-celled

1991-02-08

1992-10-06

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521111, 521112, 521115, 521128, 521159, 521163, C08G 1832

Patent

active

051532328

ABSTRACT:
A polyurea elastomer foam is disclosed. Specifically, the polyurea foam of this invention includes an (A) component including an isocyanate and a (B) component including (1) a primary amine terminated polyoxyalkylene polyol, (2) a chain extender, (3) water employed as the sole blowing agent and (4) a surfactant employed as a foam stabilizer. The polyurea foam of this invention is characterized as a rigid, closed cell foam.

REFERENCES:
patent: 4696954 (1987-09-01), Pritchard et al.

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