Split-stream process for making nanocomposites
    7.
    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。

    Low permeability nanocomposites
    8.
    发明授权
    Low permeability nanocomposites 有权
    低渗透性纳米复合材料

    公开(公告)号:US07485677B2

    公开(公告)日:2009-02-03

    申请号:US10478281

    申请日:2002-05-29

    IPC分类号: C08K3/34 C08C19/22 C08L27/00

    摘要: The present invention is a blend of an halogenated elastomer and a clay, desirably an exfoliated clay, to form a nanocomposite suitable for an air barrier. In one embodiment, the halogenated elastomer is a polymer comprising C4 to C7 isoolefin derived units, a para-methylstyrene derived units, and para-(halomethylstyrene) derived units. In another embodiment, the halogenated elastomer is a butyl-type rubber. The clay may or may not have an additional exfoliating treatment present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an innerliner or innertube.

    摘要翻译: 本发明是卤化弹性体和粘土的混合物,理想地是剥离粘土,以形成适合于空气屏障的纳米复合材料。 在一个实施方案中,卤化弹性体是包含C4-C7异烯烃衍生单元,对甲基苯乙烯衍生单元和对 - (卤代甲基苯乙烯)衍生单元的聚合物。 在另一个实施方案中,卤化弹性体是丁基型橡胶。 在与共聚体共混之前,粘土可以或可以不具有额外的去角质处理。 互聚物/粘土混合物在本发明的纳米复合材料混合物中形成不同的相。 本发明的共混物具有改善的空气阻隔性能,并且适合作为内衬或内管。