Patent ID: 7153901

Claim:
A flame retardant which comprises the reaction product of (A) at least one brominated aromatic diester diol with (B) at least one alcohol-reactive agent which is (i) an anhydride containing from four to about eight carbon atoms, (ii) at least one dihydrocarbyl phosphate, (iii) at least one dihalohydrocarbyl phosphate, wherein each halogen atom is chlorine or bromine, (iv) at least one dehydrocarbyl chlorophosphate, (v) at least one dihalohydrocarbyl chlorophosphate, wherein each halogen atom is chlorine or bromine, (vi) at least one dihydrocarbyl chlorothiophosphate, (vii) at least one dihalohydrocarbyl chlorothiophosphate, wherein each halogen atom is chlorine or bromine, or (viii) mixtures of two or more of the foregoing.