Elastomeric Copolymers, Copolymer Compositions, and Their Use in Articles
    15.
    发明申请
    Elastomeric Copolymers, Copolymer Compositions, and Their Use in Articles 审中-公开
    弹性共聚物,共聚物组合物及其在制品中的应用

    公开(公告)号:US20110060086A1

    公开(公告)日:2011-03-10

    申请号:US12861414

    申请日:2010-08-23

    摘要: A copolymer is formed from an isoolefin having from 4 to 7 carbon atoms and an alkylstyrene. The copolymer has a substantially homogeneous compositional distribution. The copolymer has from about 8 to about 12 wt % of alkylstyrene and at least 85 wt % of isoolefin. The copolymer is preferably halogenated with about 1.1 to about 1.5 wt % of a halogen. The copolymer may in elastomeric nanocomposites. To obtain a good dispersion of the nanoclay in a formulated compound, at least one cure accelerator is selected from the group consisting of mercaptobenzothiazole disulfide, mercaptobenzothiazole, cyclohexyl benzothiazole disulfide, dibutyl thiourea, tetramethylthiuram disulfide, 4-4-dithiodimropholine, zinc dimethyldithiocarbamate, and zinc dibutylphosphorodithiate.

    摘要翻译: 由具有4至7个碳原子的异烯烃和烷基苯乙烯形成共聚物。 共聚物具有基本均匀的组成分布。 共聚物具有约8至约12重量%的烷基苯乙烯和至少85重量%的异烯烃。 共聚物优选卤化为约1.1至约1.5重量%的卤素。 共聚物可以在弹性纳米复合材料中。 为了在配制的化合物中获得纳米粘土的良好分散体,至少一种固化促进剂选自巯基苯并噻唑二硫化物,巯基苯并噻唑,环己基苯并噻唑二硫化物,二丁基硫脲,二硫化四甲基秋兰姆,4-4-二硫代环己烷,二甲基二硫代氨基甲酸锌和 二丁基二硫代磷酸锌。

    Split-stream process for making nanocomposites
    17.
    发明授权
    Split-stream process for making nanocomposites 有权
    用于制造纳米复合材料的分流工艺

    公开(公告)号:US07501460B1

    公开(公告)日:2009-03-10

    申请号:US11183361

    申请日:2005-07-18

    IPC分类号: C08J3/20

    摘要: The present invention is a process to produce a nanocomposite of a elastomer and organic clay, e.g. an exfoliated clay, suitable for use as an air barrier. The process can include the steps of: (a) contacting a solution (10) of butyl rubber in an organic solvent with a halogen (12) to form a halogenated butyl rubber solution (16); (b) neutralizing the halogenated butyl rubber solution; (c) functionalizing at least a portion (18) of the halogenated butyl rubber; (d) mixing a dispersion (22) of clay with the functionalized butyl rubber (18) to form a masterbatch (26) comprising a polymer-clay nanocomposite; (e) combining the masterbatch (26) with the rest of the halogenated butyl rubber solution (20) to form a second mixture (28); (e) recovering the nanocomposite from the second mixture (28). The nanocomposite so formed has improved air barrier properties and is suitable for use as a tire innerliner or innertube.

    摘要翻译: 本发明是一种制备弹性体和有机粘土的纳米复合材料的方法,例如, 一种适合用作空气屏障的剥离粘土。 该方法可以包括以下步骤:(a)将丁基橡胶在有机溶剂中的溶液(10)与卤素(12)接触以形成卤化丁基橡胶溶液(16); (b)中和卤化丁基橡胶溶液; (c)官能化所述卤化丁基​​橡胶的至少一部分(18); (d)将粘土分散体(22)与官能化丁基橡胶(18)混合以形成包含聚合物 - 粘土纳米复合材料的母料(26); (e)将母料(26)与其余的卤化丁基橡胶溶液(20)组合以形成第二混合物(28); (e)从第二混合物(28)回收纳米复合材料。 如此形成的纳米复合材料具有改善的空气阻隔性能,并且适合用作轮胎内衬或内管。