Scorch resistant additives for polyurethane foams

Details Scorch resistant additives for polyurethane foams Scorch resistant additives for polyurethane foams

1997-06-11

2000-04-18

Truong, Duc

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 50, 528 48, 528 52, 528 59, 528287, 528288, 528369, C08L 7500

Patent

active

060516208

ABSTRACT:
Polyester polyols which contain at least one dihydrazide linkage --C(.dbd.O)--NHNH--C(.dbd.O)-- reduce the incidence of scorching when used as a reactant in the manufacture of polyurethane foam. Also disclosed are compounds of structures (2) and (3):

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