Patent ID: 8536256

Claim:
A flame retardant epoxy composition comprising: (i) an epoxy resin; (ii) a compound having the following structure: wherein A is a direct bond, C 6 -C 12 aryl, C 3 -C 12 cycloalkyl, or a C 3 -C 12 cycloalkenyl, wherein said cycloalkyl or cycloalkenyl may be optionally substituted by a C 1 -C 6 alkyl; each R 1 , R 2 , R 3 and R 4 are independently hydrogen, C 1 -C 15 alkyl, C 6 -C 12 aryl, C 7 -C 15 aralkyl or C 7 -C 15 alkaryl; or R 1 and R 2 or R 3 and R 4 taken together can form a saturated or unsaturated cyclic ring, wherein said saturated or unsaturated cyclic ring may be optional substituted by a C 1 -C 6 alkyl; each m is independently 1, 2, 3 or 4 each R 5 and R 6 are independently hydrogen or a C 1 -C 6 alkyl; each n is independently 0, 1, 2, 3, 4 or 5; with the proviso that when A is aryl or a direct bond, n can not be 0.