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Compositions and process for the stabilization of polyvinyl chloride against thermal degradation, and the use of a phenolic antioxidant estericamente prevented together with a thio ether - ester
Compositions and process for the stabilization of polyvinyl chloride against thermal degradation, and the use of a phenolic antioxidant estericamente prevented together with a thio ether - ester
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机译:稳定聚氯乙烯防止热降解的组合物和方法,以及与硫醚-酯一起防止的酚类抗氧剂酯的使用。
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摘要
The instant invention relates to a composition and process for the stabilization of halogen containing polymer slurries, in particular polyvinylchloride (PVC). The composition comprises a halogen containing polymer in the form of an aqueous suspension or emulsion, a partially hindered phenolic antioxidant and selected sulfur containing antioxidants, which are both solid at 20° C. A further aspect of the invention is the use of specific antioxidant mixtures for the stabilization of halogen containing polymer suspensions or emulsions, in particular PVC.
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