Oligourea polyols, polyether polyols produced from them and the

Details Oligourea polyols, polyether polyols produced from them and the Oligourea polyols, polyether polyols produced from them and the

1986-10-01

1989-10-17

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528 77, 564 59, C08G 1800, C08G 1814, C08G 1832

Patent

active

048747971

ABSTRACT:
The present invention is directed to novel polyhydroxyalkyl oligoureas prepared by condensing urea derivatives with polyamides. The present invention is further directed to polyether polyols prepared by alkoxylating these polyhydroxyalkyl oligoureas. Finally, the present invention is directed to the use of both the polyhydroxyalkyl oligoureas and the polyethers prepared therefrom for use in the production of polyurethanes, particularly rigid foams.

REFERENCES:
patent: 3277027 (1966-10-01), Hennig et al.
patent: 3277061 (1966-10-01), Fenton
patent: 3321415 (1967-05-01), Hennig et al.
patent: 3519680 (1970-07-01), Wismer et al.
patent: 3795638 (1974-03-01), Grogler et al.
patent: 4180131 (1979-12-01), Chammas
patent: 4546121 (1985-10-01), Haas et al.

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