Polyurethane foams using a polyurea polymer polyol

Details Polyurethane foams using a polyurea polymer polyol Polyurethane foams using a polyurea polymer polyol

1980-10-31

1981-10-20

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 260 332R, 521163, 521164, 521137, C08G 1814, C08G 1850, C08G 1832

Patent

active

042962137

ABSTRACT:
A polyurea polymer polyol 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 is disclosed. This 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: 2929800 (1960-03-01), Hill
patent: 3294751 (1966-12-01), Beitchman
patent: 3325421 (1967-06-01), Muller
patent: 3590002 (1971-06-01), Powers
patent: 4089835 (1978-05-01), Koenig et al.
patent: 4107102 (1978-08-01), Dahm et al.
patent: 4239856 (1980-12-01), Rowton

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