Stabilising materials for halogen-containing polymers, polymer compositions containing the same and shaped articles formed therefrom.

摘要

Compositions effective for stabilizing halogen-containing polymers against the deteriorative effects of heat comprise 1) at least one zinc mercaptoester, 2) at least one basic inorganic alkali or alkaline earth metal compound, and, optionally, 3) at least one substituted dihydropyridine.