Witco Chemical Corporation

Ck Witco Corporation

James Stogis

Carl Bernstein

Robert J Kufrin

Travis Riddle

Ibrahim Bechara

Thomas R Baranowski

Thomas H Morong

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):

Scorch resistant additives for polyurethane foams

The machine processing character as well as the stress-strain properties of polyester polyurethane foam are improved by the use of a cross-linking polyol, a viscosity increasing dicarboxylic acid or anhydride such as phthalic anhydride, and by the use of specific minor amounts of poly(oxyethylene) glycol, in the esterification formula of foam grade polyester resins. A nonhydrophillic flexible polyester based polyurethane foam is produced.

Polyester resins for polyurethane foams

Polyester resins for polyurethane foams prepared by reacting two

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Joliet, IL, United States of America

James Stogis