Thermal stabilizer compositions for halogen-containing vinyl polymers

A method of stabilizing a halogen-containing vinyl polymer comprising adding to the halogen-containing vinyl polymer composition a stabilizer composition comprising a substantially metal-free perchlorate;

• a first amine-containing stabilizer;
• and a second amine-containing stabilizer;
• wherein the first and second amine-containing stabilizers are selected from an aminoalcohol, a dihydropyridine, an aminocrotonate, an aminouracil, a phenyl indole, or a mixture comprising one or more of the foregoing amine-containing stabilizers;
• and wherein the first and second amine-containing stabilizers are different types of stabilizers.

A polymeric composition, comprising

• a halogen-containing vinyl polymer, stabilizer composition comprising a substantially metal-free perchlorate;
• a first amine-containing stabilizer;
• and a second amine-containing stabilizer;
• wherein the first and second amine-containing stabilizers are selected from an aminoalcohol, a dihydropyridine, an aminocrotonate, an aminouracil, a phenyl indole, or a mixture comprising one or more of the foregoing amine-containing stabilizers;
• and wherein the first and second amine-containing stabilizers are different types of stabilizers.