2-TRICHLOROMETHYL OXAZOLIDINE AND THIAZOLIDINE DERIVATIVES AS FLAME RETARDANTS FOR POLYURETHANES

摘要

ADSTRACT OF THE INVENTION A rigid polyurethane foam is prepared from a reaction mixture incorporating therein n 2-trichloromethyloxazolidine or a thiazolidine derivative for imparting to the foam smoke and flame retardancy. The 2-trichloromethyloxazolidine has the formulaa) X is 0 or S; andb) R is selected from the group consisting of H, -CH2CH20H, and , .