POLYOLEFINS MODIFIED BY SILICONES
    1.
    发明申请
    POLYOLEFINS MODIFIED BY SILICONES 审中-公开
    硅改性聚硅氧烷

    公开(公告)号:US20120283388A1

    公开(公告)日:2012-11-08

    申请号:US13520855

    申请日:2010-12-22

    IPC分类号: C08F255/02 C08F8/00

    摘要: The invention provides a process for grafting silicone onto a polyolefin comprising reacting the polyolefin with a silicon compound containing an unsaturated group in the presence of means capable of generating free radical sites in the polyolefin, characterized in that the silicon compound is a branched silicone resin containing at least one group of the formula —X—CH═CH—R″ (I) or —X—C≡C—R″ (II), in which X represents a divalent organic linkage having an electron withdrawing effect with respect to the —CH═CH— or —C≡C-bond and/or containing an aromatic ring or a further olefinic double bond or acetylenic unsaturation, the aromatic ring or the further olefinic double bond or acetylenic unsaturation being conjugated with the olefinic unsaturation of —X—CH═CH—R″ or with the acetylenic unsaturation of —X—C≡C—R″, X being bonded to the branched silicone resin by a C—Si 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. The polyolefin is reinforced by grafting the branched silicone resin onto it.

    摘要翻译: 本发明提供一种将聚硅氧烷接枝到聚烯烃上的方法,包括使聚烯烃与含有不饱和基团的硅化合物在能够在聚烯烃中产生自由基位点的方式存在下反应,其特征在于硅化合物是含有 至少一个式-X-CH = CH-R“(I)或-X-C≡C-R”(II)的基团,其中X表示具有相对于 -CH = CH-或-C≡C-键和/或含有芳环或另外的烯属双键或炔属不饱和键,所述芳环或其它烯属双键或炔属不饱和键与-X 1的烯属不饱和键 -CH = CH-R“或-X-C≡C-R”的炔属不饱和度,X通过C-Si键与支链硅氧烷树脂键合,R“表示氢或具有吸电子基团 翼效应或相对于-CH = CH-或-C≡C-键的任何其它活化效应。 通过将支化硅树脂接枝到其上来增强聚烯烃。