| 摘要 |
A polyvinyl chloride molding composition, suitable for the manufacture of sheet stock according to the "Luvitherm" method, consists essentially of emulsion polyvinyl chloride and 0.5-3.0% by weight of a processing aid which is a copolymer of 40-90% by weight of vinyl monomers whose corresponding homopolymers have a glass point below 0 DEG C., and of 10-60% by weight of vinyl monomers whose corresponding homopolymers have a glass transition temperature above 20 DEG C.
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