Thermal stabilizer composition for halogen-containing vinyl polymers

摘要

Stabilizer compositions are employed to stabilize filled halogen-containing vinyl polymers from, for example, degradation and discoloration. The stabilizer compositions comprise a mercaptan-containing organic compound; and a zinc salt in an amount effective to provide 0.075 to 1.5 parts by weight of zinc, based on 100 parts by weight of the halogen-containing vinyl polymers.