Processable branched isoolefin-alkylstyrene elastomers
    1.
    发明授权
    Processable branched isoolefin-alkylstyrene elastomers 有权
    可加工的支链异烯烃 - 烷基苯乙烯弹性体

    公开(公告)号:US07767743B2

    公开(公告)日:2010-08-03

    申请号:US11373783

    申请日:2006-03-10

    IPC分类号: C08K5/09

    摘要: A branched isobutylene-styrenic elastomer with a broad molecular weight distribution is disclosed comprising an interpolymer of an isoolefin monomer as isobutylene, a styrenic monomer such as p-methylstyrene, and a multiolefin such as divinylbenzene. The elastomer has improved green strength, relaxation characteristics, and processability in melt processing, while retaining excellent aging characteristics and barrier properties, and can be used in a blend with a linear isobutylene-p-alkylstyrene elastomer to improve processability of the linear elastomer. Also disclosed are a method for processing the linear elastomer with an effective amount of the branched elastomer to improve processability, and nanocomposites, curable compositions, cured compositions and useful articles formed from the branched elastomer and the linear-branched elastomer blends.

    摘要翻译: 公开了具有宽分子量分布的支链异丁烯 - 苯乙烯系弹性体,其包含异烯烃单体作为异丁烯的共聚体,苯乙烯单体如对甲基苯乙烯和多烯烃如二乙烯基苯。 弹性体在熔融加工中具有改善的生坯强度,松弛特性和加工性能,同时保持优异的老化特性和阻隔性能,并且可用于与线性异丁烯 - 对烷基苯乙烯弹性体的共混物中,以改善线性弹性体的加工性能。 还公开了一种用有效量的支化弹性体处理线性弹性体以改善加工性能的方法,以及由支化弹性体和直链支化弹性体共混物形成的纳米复合材料,可固化组合物,固化组合物和有用制品。

    Butyl nanocomposite via low Mw elastomer pre-blend
    3.
    发明授权
    Butyl nanocomposite via low Mw elastomer pre-blend 有权
    丁基纳米复合材料通过低Mw弹性体预混合

    公开(公告)号:US07638573B2

    公开(公告)日:2009-12-29

    申请号:US11400662

    申请日:2006-04-07

    IPC分类号: C08K9/00 C08K9/04

    摘要: The present invention provides a method to form a nanocomposite including blending a high molecular weight elastomer, a low molecular weight elastomer, and a clay to form a nanocomposite; wherein the high molecular weight elastomer has a weight average molecular weight greater than 250000; wherein the low molecular weight elastomer has a weight average molecular weight less than 150000. In another embodiment, the invention provides a method to form a nanocomposite including the steps of blending a low molecular weight elastomer and a clay to form a first mixture; blending a high molecular weight elastomer and the first mixture to form the nanocomposite; wherein the low molecular weight elastomer has a weight average molecular weight less than 150000; and, wherein the high molecular weight elastomer has a weight average molecular weight greater than 250000.

    摘要翻译: 本发明提供一种形成纳米复合材料的方法,包括混合高分子量弹性体,低分子量弹性体和粘土以形成纳米复合材料; 其中所述高分子量弹性体的重均分子量大于250000; 其中低分子弹性体的重均分子量小于150000.在另一个实施方案中,本发明提供形成纳米复合材料的方法,包括以下步骤:混合低分子量弹性体和粘土以形成第一混合物; 混合高分子量弹性体和第一混合物以形成纳米复合材料; 其中所述低分子量弹性体的重均分子量小于150000; 其中高分子量弹性体的重均分子量大于250000。

    Butyl nanocomposite via low Mw elastomer pre-blend
    4.
    发明申请
    Butyl nanocomposite via low Mw elastomer pre-blend 有权
    丁基纳米复合材料通过低Mw弹性体预混合

    公开(公告)号:US20070238822A1

    公开(公告)日:2007-10-11

    申请号:US11400662

    申请日:2006-04-07

    IPC分类号: C08K9/00 C08K9/04

    摘要: The present invention provides a method to form a nanocomposite including blending a high molecular weight elastomer, a low molecular weight elastomer, and a clay to form a nanocomposite; wherein the high molecular weight elastomer has a weight average molecular weight greater than 250000; wherein the low molecular weight elastomer has a weight average molecular weight less than 150000. In another embodiment, the invention provides a method to form a nanocomposite including the steps of blending a low molecular weight elastomer and a clay to form a first mixture; blending a high molecular weight elastomer and the first mixture to form the nanocomposite; wherein the low molecular weight elastomer has a weight average molecular weight less than 150000; and, wherein the high molecular weight elastomer has a weight average molecular weight greater than 250000.

    摘要翻译: 本发明提供一种形成纳米复合材料的方法,包括混合高分子量弹性体,低分子量弹性体和粘土以形成纳米复合材料; 其中所述高分子量弹性体的重均分子量大于250000; 其中低分子量弹性体的重均分子量小于150000.在另一个实施方案中,本发明提供形成纳米复合材料的方法,包括以下步骤:混合低分子量弹性体和粘土以形成第一混合物; 混合高分子量弹性体和第一混合物以形成纳米复合材料; 其中所述低分子量弹性体的重均分子量小于150000; 其中高分子量弹性体的重均分子量大于250000。