Patent ID: 7323502

Claim:
A flame retardant polyolefin composition which comprises (A) a polyolefin substrate and (B) an effective flame retarding amount of a synergistic mixture of (i) at least one compound selected from the group consisting of the sterically hindered alkoxyamine stabilizers and (ii) at least one phosphazene flame retardant, where the sterically hindered alkoxyamine stabilizers are of the formula where G 1 and G 2 are independently alkyl of 1 to 8 carbon atoms or are together pentamethylene, Z 1 and Z 2 are each methyl, or Z 1 and Z 2 together form a linking moiety which may additionally be substituted by an ester, ether, amide, amino, carboxy or urethane group, and E is cyclohexyloxy, and where the phosphazene is of the formula where m is 3 or 4 and R 50 and R 51 are independently selected from methyl, phenyl and p-tolyl.