Patent ID: 7109260

Claim:
A flame retardant polymer composition which comprises (a) an organic polymer substrate and (b) an effective flame retarding amount of a synergistic mixture of (i) at least one sterically hindered amine stabilizer, (ii) tris[3-bromo-2,2-bis(bromomethyl)propyl] phosphate and where the stabilizers of component (i) 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 hydrotalcite are present from about 0.1% to about 1.0% by weight based on component (a).