Stabilizing polyurea polymer polyols by treating with a secondar

Details Stabilizing polyurea polymer polyols by treating with a secondar Stabilizing polyurea polymer polyols by treating with a secondar

1980-07-11

1981-10-06

Welsh, Maurice J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

2604159QA, 528 49, 528 85, 560 25, 560 26, 560115, 560158, C08G 1832

Patent

active

042934702

ABSTRACT:
A polyurea polymer polyol with improved storage stability is made by the reaction of a hydroxyl-containing amine, a polyether polyol of about 3,000 to 8,000 molecular weight and an organic polyisocyanate followed by quenching with a secondary amine. This stable polyurea polymer polyol may be used in the manufacture of flexible polyurethane foams which are firmer and stronger than similar products using conventional polyols.

REFERENCES:
patent: 3325421 (1967-06-01), Muller
patent: 4002584 (1977-01-01), Takahashi et al.
patent: 4009307 (1977-02-01), Erikson et al.
patent: 4107102 (1978-08-01), Dahm et al.

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