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    • 9. 发明申请
    • FUNCTIONALIZED ELASTOMER NANOCOMPOSITE
    • 功能性弹性体纳米复合材料
    • WO2004005387A1
    • 2004-01-15
    • PCT/US2003/016944
    • 2003-05-30
    • EXXONMOBIL CHEMICAL PATENTS INC.GONG, CaiguoDIAS, Anthony, J.TSOU, Andy, H.POOLE, Beverly, J.KARP, Kriss, R.
    • GONG, CaiguoDIAS, Anthony, J.TSOU, Andy, H.POOLE, Beverly, J.KARP, Kriss, R.
    • C08K3/34
    • C08K3/346C08L51/00C08L23/22
    • An embodiment of the present invention is a nanocomposite comprising a clay and an elastomer comprising at least C 2 to C 10 olefin derived units; wherein the elastomer also comprises functionalized monomer units pendant to the elastomer. Desirable embodiments of the elastomer include poly(isobutylene- co-p -alkylstyrene) elastomers and poly(isobutylene- co -isoprene) elastomers, which are functionalized via Friedel-Crafts reaction with a Lewis acid and a functionalizing agent such as acid anhydrides and/or acylhalides. The clay is exfoliated in one embodiment by the addition of exfoliating agents such as alkyl amines and silanes to the clay. The composition can include secondary rubbers such as general purpose rubbers, and curatives, fillers, and the like. The nanocomposites of the invention have improved air barrier properties such as are useful for tire innerliners and innertubes.
    • 本发明的一个实施方案是纳米复合材料,其包含粘土和包含至少C2-C10烯烃衍生单元的弹性体; 其中弹性体还包括垂直于弹性体的官能化单体单元。 弹性体的优选实施方案包括聚(异丁烯 - 共 - 对烷基苯乙烯)弹性体和聚(异丁烯 - 共异戊二烯)弹性体,其通过与路易斯酸和官能化试剂如酸酐和/ 或酰卤。 粘土在一个实施方案中通过向粘土中加入去角质剂如烷基胺和硅烷来剥离。 组合物可以包括二次橡胶,例如通用橡胶,固化剂,填料等。 本发明的纳米复合材料具有改进的空气阻隔性能,例如可用于轮胎内衬和内管。