| abstract |
Improved stabilizer compositions for halogen-containing vinyl polymers, particularly improvements that do not contain cadmium, tin, and / or lead and provide improved resistance to discoloration during processing and / or use. Provided stabilizer compositions. Synergistic stabilizer compositions are used to stabilize halogen-containing vinyl polymers from, for example, degradation and discoloration. The stabilizer composition comprises a zinc compound, dihydropyridine or polydihydropyridine, beta-diketone and latent mercaptan. [Selection figure] None |