METHOD FOR STABILIZING AN ORGANIC MATERIAL WHICH IS SUBJECT TO THERMAL AND/OR OXIDATIVE DETERIORATION AND RESULTING STABILIZED MATERIAL

摘要

Organic materials which are subject to thermal and/or oxidative deterioration, e.g., polyether polyols and polyurethane foams prepared from polyether polyols, are stabilized against such deterioration by the addition thereto of a stabilizing amount of a liquid, crystallizationresistant mixture of phenolic esters made up predominantly of phenolic monoester(s), the mixture of phenolic esters being obtained by reacting an alkyl ester of a 3,5-dialkyl-4-hydroxyphenyl alkanoic acid with a polyhydrixyl alcohol under esterification reaction conditions employing an esterification reaction catalyst.