Polyether polyols suitable for flexible polyurethane foam prepar

Details Polyether polyols suitable for flexible polyurethane foam prepar Polyether polyols suitable for flexible polyurethane foam prepar

1996-10-21

1997-07-29

Gorr, Rachel

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521914, C08G 1848

Patent

active

056522797

ABSTRACT:
Polyoxyalkylene polyether polyols suitable for preparation of flexible polyurethane foams are prepared by oxyalkylating an aqueous solution of one or more polyhydric, hydroxyl-functional solid initiators under conditions where both water as well as initiator are oxyalkylated. The polyols have calculated functionalities of between about 2.2 and 4.0 and hydroxyl numbers in the range of 10 to 180. The polyols may be used to prepare soft, high resiliency polyurethane flexible foams at low isocyanate indexes.

REFERENCES:
patent: 4166172 (1979-08-01), Klein
patent: 4316991 (1982-02-01), Speranza
patent: 4820810 (1989-04-01), Klein et al.
patent: 4950694 (1990-08-01), Hager
patent: 5045623 (1991-09-01), Horn et al.
patent: 5272183 (1993-12-01), Doerge
patent: 5306798 (1994-04-01), Horn et al.

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