SPANDEX CONTAINING A MIXTURE OF PHENOLIC COMPOUNDS

摘要

The invention provides polyurethane containinga) a first additive comprising at least one mono-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons;b) a second additive selected from the group consisting of i) condensation polymers of p-cresol and divinyl benzene and ii) compounds comprising at least one unsymmetrically di-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; andc) an inorganic chlorine-resist additive.The polyurethane of the invention exhibits improved resistance to degradation by chlorine and by atmospheric fumes.