HR foams made with reactive polyol compositions having improved

Details HR foams made with reactive polyol compositions having improved HR foams made with reactive polyol compositions having improved

1980-05-05

1981-08-18

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 521 99, 521117, 521128, 521130, 521170, 521172, C08G 1814

Patent

active

042847281

ABSTRACT:
HR or high resiliency polyurethane foams having improved processing stability are prepared from reactive urethane formation promoting active hydrogen-containing compositions which have been pre-treated with carbon dioxide or a weak acid. The pre-treated active hydrogen-containing composition is, then, reacted with an organic polyisocyante to form the foams hereof.

REFERENCES:
patent: 2889291 (1959-06-01), Moore
patent: 3567664 (1971-03-01), Haring
patent: 3663465 (1972-05-01), Fogiel
patent: 3798198 (1974-03-01), Hole

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