FLAME RETARDANT POLYACRYL- OR POLYMETHACRYLIMIDE FOAM AND MANUFACTURE

摘要

Flame retarded polyacrylimide or polymethacrylimide resin foams containing at least 70 percent by weight of cyclic acrylimide or methacrylimide units and incorporating at least 1 percent by weight of phosphorus, present at least partially in the form of a phosphorus compound, XCH2-PO(OR)2, wherein R is methyl, ethyl, or chloromethyl, and X is hydrogen, halogen, hydroxyl, or RO-CO-.