SALT OF 5,5-BIS-(BROMOMETHYL)-2-HYDROXY-2- OXO-1,3,2-DIOXAPHOSPHORINANE AND MANUFACTURE

摘要

A process for preparing polyvalent metal and amine salts of the indicated phosphorinane (an acid). The salts are isolated as such and are effective, in small proportions, to impart flame-retardant properties to polymers, especially to polypropylene and to styrenic polymers such as polystyrene, ABS and MBS.