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    • 7. 发明申请
    • MODIFIED DIENE ELASTOMERS
    • 改性的二烯弹性体
    • WO2011083050A2
    • 2011-07-14
    • PCT/EP2010070489
    • 2010-12-22
    • DOW CORNINGBACKER MICHAELCHAUSSEE THOMASDE BUYL FRANCOISDEHEUNYNCK DAMIENHABIMANA JEAN DE LA CROIXSMITS VALERIE
    • BACKER MICHAELCHAUSSEE THOMASDE BUYL FRANCOISDEHEUNYNCK DAMIENHABIMANA JEAN DE LA CROIXSMITS VALERIE
    • C08F253/00
    • C08K3/36B60C1/00C08C19/25C08F253/00C08F279/02C08F291/02C08G77/442C08K5/5425C08K5/544Y02T10/862C08F230/08C08L7/00C08L15/00
    • The invention is related to a process for grafting silane or silicone functionality onto a diene elastomer, comprising reacting the diene elastomer with an unsaturated monomer (A) containing an olefinic-C=C-bond or acetylenic -C=C- bond and a reactive functional group X with an organosilicon compound (B) having a functional group Y which is reactive with the functional group X of the unsaturated monomer (A). According to the invention, the unsaturated monomer (A) has the formula R"-CH=CH-Z (I) or R"-C=C-Z (II) in which Z represents an electron-withdrawing moiety containing the reactive functional group X and R" represents hydrogen or a group having an electron withdrawing effect or any other activation effect with respect to the -CH=CH-or -C=C- bond. According to a second aspect of the invention, the unsaturated monomer (A') contains at least two groups of the formula R"- CH=CH-Z'-(III) or R"-C=C-Z'-(IV) in which Z' represents a divalent linkage having an electron withdrawing effect with respect to the -CH=CH-or -C=C-bond, and R" represents hydrogen or a group having an electron withdrawing effect or any other activation effect with respect to the -CH=CH-or -C=C-bond, and the functional group Y of the organosilicon compound (B) is capable of reacting with the olefinic or acetylenic bond present in the group R"-CH=CH-Z'- (III) or R"-C=C-Z'- (IV). Such elastomer composition can be used to produce tires with good rolling resistance.
    • 本发明涉及将硅烷或硅氧烷官能团接枝到二烯弹性体上的方法,该方法包括使二烯弹性体与含有烯属-C = C-键或炔属-C = C-键的不饱和单体(A) 官能团X与具有可与不饱和单体(A)的官能团X反应的官能团Y的有机硅化合物(B)。 根据本发明,不饱和单体(A)具有式R“-CH = CH-Z(I)或R”-C = CZ(II)其中Z表示含有反应性官能团X的吸电子部分 根据本发明的第二方面,所述不饱和单体(A')与所述不饱和单体(A')具有不同的吸电子效应或任何其它活化作用, )含有至少两个式R“-CH = CH-Z' - (III)或R”-C = C-Z' - (IV)的基团,其中Z'代表具有吸电子效应的二价连接基团 关于-CH = CH-或-C = C-键,并且R“表示氢或对于-CH = CH-或-C = C-键具有吸电子效应或任何其它活化作用的基团 并且有机硅化合物(B)的官能团Y能够与存在于基团R“-CH = CH-Z'-(III)或R”-C = C-Z'中的烯属或炔属键反应, - (IV)。 这种弹性体组合物可用于生产具有良好滚动阻力的轮胎。