ANTI-CHLORINE SPANDEX FIBER CONTAINING PHENYLIC SYMMETRIC DI-HINDERED HYDROXYBENZOATE COMPOUNDS

摘要

PURPOSE: An anti-chlorine spandex fiber is provided to improve anti-chlorine property while maintaining the properties of a polyurethane polymer by containing a symmetric di-hindered hydroxybenzoate compound and hydrotalcite. CONSTITUTION: An anti-chlorine spandex fiber comprises; symmetric di-hindered hydroxybenzoate compound including a phenyl group 0.1-5 weight% based on a polyurethane compound; and hydrotalcite 0.1-10 weight% based on the polyurethane polymer. The spandex fiber is manufactured by spinning a polyurethane spinning solution. The symmetric di-hiindered hydroxylbenzoate compound is 2,3-di-t-butylphenyl 3,5-di-t-butyl-4-hydroxybenzoate.