Process for making foamed, sulfur-cured polymer blend compositions
    3.
    发明授权
    Process for making foamed, sulfur-cured polymer blend compositions 失效
    制备泡沫,硫固化聚合物共混组合物的方法

    公开(公告)号:US4540719A

    公开(公告)日:1985-09-10

    申请号:US692634

    申请日:1985-01-18

    Applicant: Gary L. Loomis

    Inventor: Gary L. Loomis

    Abstract: A blend of an E/X/Y copolymer, where E is ethylene, X is a vinyl ester, and Y is carbon monoxide or sulfur dioxide, with a polymer of vinyl halide or vinylidene halide is foamed and cured by dispersing in the blend a blowing agent and sulfur or a sulfur-releasing agent and heating the blend containing those additives at 100.degree.-180.degree. C. for a sufficient time to produce curing and foaming. This process can be run either continuously or batchwise in conventional equipment under conventional conditions in the presence of air. Plasticizers and other materials which often interfere with peroxide cures can be present in the process of this invention. The foamed and cured products have excellent physical properties and ozone resistance.

    Abstract translation: E / X / Y共聚物的共混物,其中E是乙烯,X是乙烯基酯,Y是一氧化碳或二氧化硫,与乙烯基卤化物或亚乙烯基卤化物的聚合物发泡并通过在共混物a中分散而固化 发泡剂和硫或脱硫剂,并将含有这些添加剂的共混物在100-180℃下加热足够的时间以产生固化和发泡。 这种方法可以在常规设备中在常规条件下在空气存在下连续运行或分批运行。 常常干扰过氧化物固化的增塑剂和其它材料可以存在于本发明的方法中。 发泡和固化产品具有优异的物理性能和耐臭氧性。

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