Polyester polymer polyols made with polyester polycarbonates and

Details Polyester polymer polyols made with polyester polycarbonates and Polyester polymer polyols made with polyester polycarbonates and

1983-01-24

1984-03-06

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260463, 528 76, 528 77, C08G 1814

Patent

active

044355270

ABSTRACT:
A polyester polymer polyol made by the reaction of a polyester polycarbonate, a polyether polyol and an organic polyisocyanate is described. The polyester polycarbonate may have a molecular weight of about 250 to 1,000. The polyether polyol may have a molecular weight of about 3,000 to 8,000. This polyester polymer polyol may be used in the manufacture of flexible polyurethane foams which are characterized by good load bearing properties as well as good water absorption and retention properties. Foams made from these polymer polyols show a lesser tendency to yellow than those made from prior art polyols and polymer polyols.

REFERENCES:
patent: 4165423 (1979-08-01), Passagne et al.
patent: 4267120 (1981-05-01), Cuscurida et al.

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