Polymer compositions with improved cold flow
    3.
    发明授权
    Polymer compositions with improved cold flow 有权
    具有改善冷流的聚合物组合物

    公开(公告)号:US08673998B2

    公开(公告)日:2014-03-18

    申请号:US13240466

    申请日:2011-09-22

    IPC分类号: C08L47/00

    摘要: A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent; introducing a cold-flow inhibitor with the polymer cement, where the cold-flow inhibitor is selected from the group consisting of vicinal diamides, vicinal diureas and vicinal amide-ureas; and isolating at least a portion of the polymer and the cold-flow inhibitor from the solvent to provide a polymeric composition including the polymer and the cold-flow inhibitor.

    摘要翻译: 一种制备聚合物组合物的方法,所述方法包括提供包含聚合物和溶剂的聚合物粘合剂; 在聚合物粘合剂中引入冷流阻止剂,其中冷流阻抑剂选自邻位二酰胺,邻位二脲和邻氨基脲; 并从溶剂中分离聚合物和冷流阻抑剂的至少一部分,以提供包含聚合物和冷流阻止剂的聚合物组合物。

    POLYMER COMPOSITIONS WITH IMPROVED COLD FLOW
    4.
    发明申请
    POLYMER COMPOSITIONS WITH IMPROVED COLD FLOW 有权
    具有改进的冷流的聚合物组合物

    公开(公告)号:US20120071583A1

    公开(公告)日:2012-03-22

    申请号:US13240466

    申请日:2011-09-22

    IPC分类号: C08L47/00 C08K5/21 C08K5/20

    摘要: A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent; introducing a cold-flow inhibitor with the polymer cement, where the cold-flow inhibitor is selected from the group consisting of vicinal diamides, vicinal diureas and vicinal amide-ureas; and isolating at least a portion of the polymer and the cold-flow inhibitor from the solvent to provide a polymeric composition including the polymer and the cold-flow inhibitor.

    摘要翻译: 一种制备聚合物组合物的方法,所述方法包括提供包含聚合物和溶剂的聚合物粘合剂; 在聚合物粘合剂中引入冷流阻止剂,其中冷流阻抑剂选自邻位二酰胺,邻位二脲和邻氨基脲; 并从溶剂中分离聚合物和冷流阻抑剂的至少一部分,以提供包含聚合物和冷流阻止剂的聚合物组合物。

    Method for making alkoxy-modified silsesquioxanes
    7.
    发明授权
    Method for making alkoxy-modified silsesquioxanes 有权
    制备烷氧基改性倍半硅氧烷的方法

    公开(公告)号:US08822620B2

    公开(公告)日:2014-09-02

    申请号:US13030611

    申请日:2011-02-18

    IPC分类号: C08G77/08

    摘要: A method is presented for making alkoxy-modified silsesquioxanes (AMS) or co-alkoxy-modified silsesquioxanes (co-AMS,) comprising the steps of (a) combining as a reaction mixture (i) water, (ii) an acid-stable solvent for the water, (iii) a solid strong cationic hydrolysis and condensation catalyst, and (iv) a trialkoxysilane compound, (b) allowing the reaction mixture to react for about 0.5 hours to about 200 hours to form the alkoxy-modified silsesquioxanes; and (c) recovering the alkoxy-modified silsesquioxanes from the reaction mixture. The use of solid strong cationic catalysts in this reaction system is advantageous because they remain as solids throughout the reaction, allowing simplified separation of the solid catalyst from the soluble AMS or co-AMS products, resulting in total or near total recovery of the AMS or co-AMS products, the products being free of, or substantially free of residual acid catalyst, as well as virtual total recovery of the catalyst for recycling. The improved AMS and co-AMS compounds, vulcanizable rubber compounds containing them, and a pneumatic tire having a component made from the vulcanized rubber compounds are also presented.

    摘要翻译: 提出了制备烷氧基改性倍半硅氧烷(AMS)或共 - 烷氧基改性倍半硅氧烷(co-AMS)的方法,该方法包括以下步骤:(a)将反应混合物(i)和(ii)酸稳定 溶剂,(iii)固体强阳离子水解和缩合催化剂,和(iv)三烷氧基硅烷化合物,(b)使反应混合物反应约0.5小时至约200小时以形成烷氧基改性倍半硅氧烷; 和(c)从反应混合物中回收烷氧基改性的倍半硅氧烷。 在该反应系统中使用固体强阳离子催化剂是有利的,因为它们在整个反应中保持固体,允许固体催化剂与可溶性AMS或共AMS产物的简单分离,导致AMS或 共AMS产品,产品没有或基本上没有残留的酸催化剂,以及用于再循环的催化剂的虚拟总回收。 还提出了改进的AMS和共AMS化合物,含有它们的可硫化橡胶化合物和具有由硫化橡胶化合物制成的组分的充气轮胎。