Uniroyal Chemical Company, Inc.

Lawrence B Barry

Mark C Richardson

Edward L Wheeler

Paul E Stott

Bruce W Downs

A stabilizer composition useful as an additive for polyether polyols, particularly those employed in the manufacture of polyurethane foams, is provided which comprises a diphenylamine:isobutylene:diisobutylene reaction product, a sterically hindered phenol and a trihydrocarbyl phosphite.

Stabilized polyether polyol and polyurethane foam obtained therefrom

A stabilizer composition useful as an additive for polyether polyols, particularly those employed in the manufacture of polyurethane foams, is provided which comprises a diarylamine, a sterically hindered phenol and a pentaerythritol diphosphite.

The invention relates to the use of an acridans of Structure (I) as a stabilizer, preferably combined with hindered amine, phenolic, and phosphite stabilizers for stabilizing polyether polyols for polyurethane flexible foams and as stabilizers for the polyglycols, heat transfer fluids, lubricating additives. ##STR1##

Stabilization of polyoxyalkylene polyether polyols

The invention relates to the use of certain styrenated diphenylamine and hindered phenol compositions for the stabilization of polyether polyols.

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Newington, CT, United States of America

Lawrence B Barry