Modified Polymer Compositions
    1.
    发明申请
    Modified Polymer Compositions 有权
    改性聚合物组合物

    公开(公告)号:US20150086735A1

    公开(公告)日:2015-03-26

    申请号:US14385565

    申请日:2012-03-20

    IPC分类号: C08F236/10 C08L47/00

    摘要: A process for the continuous preparation of modified elastomeric polymers includes (i) providing and polymerizing at least one conjugated diene monomer and, optionally, one or more aromatic vinyl monomer in the presence of an anionic initiator and a compound according to Formula I, e.g. 2,2-di-(2-oxolanyl)propane or a derivative thereof, to provide a living anionic polymer; and (ii) adding a “sulfanylsilane” compound to the living anionic polymer. Elastomeric polymers obtainable according to the above process and compositions including the elastomeric polymer and, optionally, further constituents such as oil, filler and/or vulcanizing agent are described. A process for the preparation of a cross-linked elastomeric polymer that includes adding a vulcanizing agent to the elastomeric polymer, as well as articles and compositions that include the elastomeric polymer, the cross-linked elastomeric polymer or both are described.

    摘要翻译: 用于连续制备改性弹性体聚合物的方法包括(i)在阴离子引发剂和根据式I的化合物的存在下,提供和聚合至少一种共轭二烯单体和任选的一种或多种芳族乙烯基单体。 2,2-二(2-氧杂环戊烷基)丙烷或其衍生物,提供活性阴离子聚合物; 和(ii)向活性阴离子聚合物中加入“硫烷基硅烷”化合物。 描述了根据上述方法可获得的弹性体聚合物和包括弹性体聚合物和任选的其它组分如油,填料和/或硫化剂的组合物。 描述了制备交联弹性体聚合物的方法,该方法包括向弹性体聚合物中加入硫化剂,以及包括弹性体聚合物,交联的弹性体聚合物或两者的制品和组合物。

    High Styrene High Vinyl Styrene-Butadiene Rubber with Narrow Molecular Weight Distribution and Methods for Preparation Thereof
    2.
    发明申请
    High Styrene High Vinyl Styrene-Butadiene Rubber with Narrow Molecular Weight Distribution and Methods for Preparation Thereof 有权
    具有窄分子量分布的高苯乙烯高乙烯基苯乙烯 - 丁二烯橡胶及其制备方法

    公开(公告)号:US20140107286A1

    公开(公告)日:2014-04-17

    申请号:US14119961

    申请日:2012-06-22

    IPC分类号: C08F4/48 C08F4/46

    摘要: A polymer having at least the following characteristics: (a) a block styrene content with more than 4 consecutive styrene units from about 40 to about 70 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 25 to about 80 weight percent based on total amount of polymerized 1,3-diene; (c) a styrene content from about 20 to about 75 weight percent based on total weight of polymer; and (d) a molecular weight distribution (Mw/Mn) of 1.5 or less.

    摘要翻译: 具有至少以下特征的聚合物:(a)基于聚合物中的总苯乙烯含量,具有大于4个连续苯乙烯单元的嵌段苯乙烯含量为约40至约70重量% (b)基于聚合的1,3-二烯的总量的约25至约80重量%的乙烯基含量; (c)基于聚合物总重量的约20至约75重量%的苯乙烯含量; 和(d)分子量分布(Mw / Mn)为1.5以下。