USE OF 3,5-DI-TERT-BUTYL-4-HYDROXYPHENYLPROPIONIC ACID FOR STABILIZING POLYETHER POLYOLS

摘要

Mo3259 LeA 26,474 USE OF 3,5-DI-TERT-BUTYL-4-HYDROXYPHENYLPROPIONIC ACID FOR STABILIZING POLYETHER POLYOLS The present invention relates to a method for stabilizing a polyether polyol having a molecular weight of from about 300 to about 10,000 comprising adding 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid as an antioxidant stabilizer, optionally in combination with other antioxidants, to said polyether polyol. This invention further relates to polyols stabilized by the method of this invention and to stabilized polyurethanes prepared from such stabilized polyols. Le A 26 474