FLAME-RETARDED POLYACRYLIMIDE OR POLYMETHACRYLIMIDE SYNTHETIC RESIN FOAM

摘要

ABSTRACT OF THE DISCLOSUREFlame retarded polyacrylimide or polymethacryl-imide resin foams containing at least 70 percent by weightof cyclic acrylimide or methacrylimide units andincorporating at least 1 percent by weight of phosphorus,present at least partially in the form of a phosphoruscompound, XCH2-PO(OR)2, wherein R is methyl, ethyl, orchloromethyl, and X is hydrogen, halogen, hydroxyl, orRO-CO-.