Stabilized polyvinyl chloride
AssigneeCiba-Geigy Corporation
InventorsRolf Drewes, Markus Kolb, Karl Kuhn, Wolfgang Wehner
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Abstract
Use of an inorganic or organic zinc compound and a terminal epoxide compound, optionally with chalk, gives a high level of stabilization of PVC.
Claims17
A stabilized PVC composition comprising (a) PVC, (b) 0.001-5.0 parts, per 100 parts of PVC, of an inorganic or organic zinc compound, (c) at least 0.01 parts, per 100 parts of PVC, of a compound containing at least one terminal epoxide group and (d) at least 10 parts, per 100 parts of PVC, of chalk.
A stabilizer composition suitable for stabilizing PVC comprising 0.001-5.0 parts of an inorganic or organic zinc compound, 0.01-5.0 parts of a compound containing at least one terminal epoxide group and 15-80 parts of chalk.
Dependencies are inferred from the claim text.