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157 条记录 (耗时 0.025 秒)

    Crosslinked chlorinated polyethylene foam
    14.
    发明授权
    Crosslinked chlorinated polyethylene foam 失效
    交联氯化聚乙烯泡沫

    公开(公告)号：US4220730A

    公开(公告)日：1980-09-02

    申请号：US951545

    申请日：1978-10-16

    申请人： Brenton S. Coyne

    发明人： Brenton S. Coyne

    IPC分类号： C08J9/06

    CPC分类号： C08J9/06 ,  C08J2323/28 ,  Y10S264/18 ,  Y10S521/915

    摘要： A crosslinked, soft, flexible, closed-cell foam of chlorinated high density polyethylene and a process for the preparation thereof, comprising admixing a high density chlorinated polyethylene with a thermally decomposable chemical foaming agent at a temperature below the decomposition temperature of said foaming agent, molding the chlorinated high density polyethylene into desired form at a temperature below the decomposition temperature of the foaming agent, subjecting the molded chlorinated high density polyethylene to irradiation cross-linking at a temperature below the decomposition temperature of said foaming agent and contacting, in a substantially oxygen-free environment, the crosslinked chlorinated high density polyethylene with a heat transfer medium maintained at a temperature of from about 150.degree. C. to about 350.degree. C. for a period sufficient to form the desired product.

    摘要翻译： 一种氯化高密度聚乙烯的交联，柔软，柔性，闭孔泡沫及其制备方法，包括在低于所述发泡剂的分解温度的温度下将高密度氯化聚乙烯与可热分解的化学发泡剂混合， 在低于发泡剂的分解温度的温度下将氯化高密度聚乙烯成型为所需形式，在低于所述发泡剂的分解温度的温度下对成型的氯化高密度聚乙烯进行照射交联，基本上 无氧环境，交联的氯化高密度聚乙烯与传热介质保持在约150℃至约350℃的温度下足以形成所需产物的时间。

    Method for producing foamed article from polypropylene
    17.
    发明授权
    Method for producing foamed article from polypropylene 失效
    从聚丙烯生产泡沫制品的方法

    公开(公告)号：US3714083A

    公开(公告)日：1973-01-30

    申请号：US3714083D

    申请日：1969-01-13

    申请人： MITSUBISHI PETROCHEMICAL CO

    发明人： NAKAYAMA Y ,  FUKADA T ,  OGAWA M

    IPC分类号： C08F255/02 ,  C08J9/10 ,  C08F47/10 ,  C08F1/16 ,  C08F19/20

    CPC分类号： C08F255/02 ,  C08J9/10 ,  Y10S521/915

    摘要： A method of producing a foamed article having a uniform cellular structure using a modified polypropylene produced by irradiating polypropylene with an ionizing radiation of from 0.1 to 5.0 megarad and graft-copolymerizing the irradiated polypropylene with from 0.5 - 6 percent by weight divinyl benzene or with from 0.5 - 6 percent by weight of divinyl benzene and not more than 10 percent by weight of an acrylic acid ester.

    摘要翻译： 使用改性聚丙烯制造具有均匀多孔结构的发泡制品的方法，所述改性聚丙烯通过用0.1至5.0兆拉德的电离辐射照射聚丙烯，并将经辐射的聚丙烯与0.5-6重量％的二乙烯基苯接触共聚， 0.5-6重量％的二乙烯基苯和不超过10重量％的丙烯酸酯。