Process for the preparation of cold setting flexible polyurethan

Details Process for the preparation of cold setting flexible polyurethan Process for the preparation of cold setting flexible polyurethan

1988-06-13

1989-05-23

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

C08G 1814

Patent

active

048331767

ABSTRACT:
The present invention is directed to a process for the preparation of cold setting, flexible, polyurethane, molded foams in a closed mold by reacting a polyisocyanate with a high molecular weight polyol in the presence of about 5 to 15, preferably about 6 to 12 parts by weight of water, based on the weight of the high molecular weight polyol at an isocyanate index below 70.

REFERENCES:
patent: 3706678 (1972-12-01), Dietrich et al.
patent: 4248930 (1981-02-01), Haas et al.
patent: 4263408 (1981-04-01), Meyborg et al.
Journal of Cellular Plastics, 20, 1984 by S. Consoli et al., pp. 200-204.

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