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    • 1. 发明公开
    • High melt flow crosslinked PVC resin, compound and articles derived therefrom
    • 的交联PVC树脂与由其制备的高流动性,混合物和产品。
    • EP0501300A1
    • 1992-09-02
    • EP92102797.5
    • 1992-02-20
    • The Geon Company
    • Cozens, Ross James
    • C08F14/06C08L27/06
    • C08F14/06C08F2/18
    • Low complex viscosity crosslinked polyvinyl halide resins and post-chlorinated versions are disclosed. Said crosslinked resins, including post-chlorinated crosslinked polyvinyl chloride are produced by suspension, mass, emulsion, micro suspension and preferably a skinless process. Said resins are polymerized in the presence of a complex viscosity suppressant which is at least partially miscible in vinyl halide monomer and substantially removable from said resin by conventional means. The preferred said suppressant is selected from the group consisting of substituted or unsubstituted lower aromatics, lower ethers, esters, lower ketones, lower aldehydes, halogenated hydrocarbons and derivatives. Lower ethers are preferred and most preferred are unsubstituted cyclic ethers. The invention includes blend compositions comprising said modified crosslinked polyvinyl halide resin including post-chlorinated versions in combination with uncrosslinked polyvinyl halide resin or post-chlorinated version, said resins and blends are useful for flexible and rigid articles, in particular, large and/or intricate molded articles requiring enhanced melt flow.
    • 低复数粘度交联的聚卤乙烯树脂和后氯化的版本是游离缺失盘。 所述交联树脂,包括后氯化的交联聚氯乙烯通过悬浮,本体,乳液,微悬浮并优选无表皮过程中产生的。 所述树脂在复数粘度抑制剂的所有其至少在卤乙烯单体部分混溶,并从通过常规方法,所述树脂基本上可移除的存在下聚合。 在优选地,所述抑制剂是选自substituiertem奥德unsubstituiertem低级芳烃,低级醚,酯,酮低,低级醛,卤代烃及其衍生物组成的组。 低级醚是优选和最优选是环醚unsubstituiertem。 本发明包括刺眼的组合物包含所述改性的交联聚卤乙烯树脂包括后氯化的版本与未交联的聚卤乙烯树脂或后氯化的版本组合,所述树脂和共混物是尤其是用于柔性和刚性制品是有用的,大和/或复杂的 模制品需要增强的熔体流动。