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    • 2. 发明申请
    • POLYOLEFINS MODIFIED BY SILICONES
    • 硅改性聚硅氧烷
    • US20120283388A1
    • 2012-11-08
    • US13520855
    • 2010-12-22
    • Michael BackerThomas ChausseFrancois De BuylDamien DeheunynckSatoshi OnoderaValerie Smits
    • Michael BackerThomas ChausseFrancois De BuylDamien DeheunynckSatoshi OnoderaValerie Smits
    • C08F255/02C08F8/00
    • C08L23/06C08F8/42C08F290/04C08F290/042C08F299/08C08L23/12C08L51/06C08L83/10C08F10/00C08L2666/24C08L2666/06C08F230/08C08F236/14
    • 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.
    • 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。
    • 3. 发明授权
    • Polymers modified by silanes
    • 由硅烷改性的聚合物
    • US08476375B2
    • 2013-07-02
    • US13001677
    • 2009-07-02
    • Michael BackerValerie SmitsDamien Deheunynck
    • Michael BackerValerie SmitsDamien Deheunynck
    • C08F230/08C08F4/34C08J3/28C08J9/04C08L51/06
    • C08F255/02C08F255/00C08L51/06C08L2666/04C08L2666/02
    • The invention relates to a process for grafting hydrolysable silane groups to a polyolefin, comprising reacting the polyolefin with an unsaturated silane, containing an olefinic —C═C— bond or acetylenic —C≡C— bond and having at least one hydrolysable group bonded to Si, or a hydrolysate thereof, in the presence of means capable of generating free radical sites in the polymer. The silane contains 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 —C═C— or acetylenic —C≡C— unsaturation of the silane. The unsaturated silane may also contains electron-withdrawing moiety with respect to the olefinic —C═C— or acetylenic —C≡C— bond. The invention permits to provide a silane-modified polyolefin having a high grafting efficiency while limiting/preventing polymer degradation by chain scission. The silane-modified polyolefin can be further reacted with a polar surface, a filler or a polar polymer or reacted on itself to crosslink the polyolefin and obtain enhanced physical properties of the composites made thereof.
    • 本发明涉及将可水解硅烷基接枝到聚烯烃上的方法,包括使聚烯烃与不饱和硅烷反应,所述不饱和硅烷含有烯烃-C = C-键或炔属-C = C-键并且具有至少一个可水解基团键合到 Si或其水解产物,在能够在聚合物中产生自由基位点的手段存在下进行。 所述硅烷含有芳环或其它烯属双键或炔属不饱和键,所述芳环或所述其它烯属双键或炔属不饱和键与所述硅烷的烯烃-C = C-或炔属-C = C-不饱和键结合。 相对于烯烃-C = C-或炔属-C = C-键,不饱和硅烷还可含有吸电子部分。 本发明允许提供具有高接枝效率的硅烷改性聚烯烃,同时通过链断裂限制/防止聚合物降解。 硅烷改性的聚烯烃可以进一步与极性表面,填料或极性聚合物反应,或者自身反应以使聚烯烃交联并获得由其制成的复合材料的增强的物理性能。
    • 9. 发明授权
    • Modified polyolefins
    • 改性聚烯烃
    • US08569417B2
    • 2013-10-29
    • US13001668
    • 2009-07-02
    • Michael BackerFrancois De BuylValerie SmitsDamien Deheunynck
    • Michael BackerFrancois De BuylValerie SmitsDamien Deheunynck
    • C08F255/00C08F255/02C08F8/12C08F8/42
    • C08F255/00C08F255/02C08F255/08C08L51/06C08L2666/02C09D151/06C09J151/06
    • The invention relates to a process for grafting hydrolysable silane groups to a polyolefin in which ethylene units, if present, form less than 50% by weight of the total polyolefin. The polyolefin is reacted with an unsaturated silane, having at least one hydrolysable group bonded to Si, or a hydrolysate thereof, in the presence of means capable of generating free radical sites in the polyolefin. The unsaturated silane has the formula R″—CH═CH—Z (I) or R″—C≡C—Z (II) in which Z represents an electron-withdrawing moiety substituted by a —SiRaR′(3-a) group wherein R represents a hydrolysable group; R′ represents a hydrocarbyl group having 1 to 6 carbon atoms; a has a value in the range 1 to 3 inclusive; and R″ represents hydrogen or a group having an electron withdrawing or any other activation effect with respect to the —CH═CH— or —C≡C— bond. The use of an unsaturated silane of the formula R″—CH═CH—Z (I) or R″—C≡C—Z (II) in carrying out the grafting reaction on the polyolefin may give enhanced grafting yield compared to grafting with an olefinically unsaturated silane such as vinyltrimethoxysilane not containing an electron withdrawing moiety Z. The invention permits to provide a silane-modified polyolefin having a high grafting efficiency while limiting/preventing polymer degradation by chain scission. The silane-modified polyolefin can be further reacted with a polar surface, a filler or a polar polymer or reacted on itself to crosslink the polyolefin and obtain enhanced physical properties of the composites made thereof.
    • 本发明涉及一种将可水解硅烷基接枝到聚烯烃上的方法,其中乙烯单元(如果存在的话)占总聚烯烃的小于50重量%。 在能够在聚烯烃中产生自由基位点的手段的存在下,聚烯烃与不饱和硅烷反应,所述不饱和硅烷具有与Si结合的至少一个可水解基团或其水解产物。 不饱和硅烷具有式R“-CH = CH-Z(I)或R”C = CZ(II),其中Z表示被-SiRaR'(3-a)基团取代的吸电子部分 其中R表示可水解基团; R'表示碳原子数1〜6的烃基。 a的值在1到3的范围内; R“表示氢或相对于-CH = CH-或-C = C-键具有吸电子或任何其它活化作用的基团。 在聚烯烃上进行接枝反应时,使用式R'-CH = CH-Z(I)或R“C = CZ(II)的不饱和硅烷可以提高接枝率, 烯属不饱和硅烷如不含吸电子部分Z的乙烯基三甲氧基硅烷。本发明允许提供具有高接枝效率的硅烷改性聚烯烃,同时通过链断裂限制/防止聚合物降解。 硅烷改性的聚烯烃可以进一步与极性表面,填料或极性聚合物反应,或者自身反应以使聚烯烃交联并获得由其制成的复合材料的增强的物理性能。
    • 10. 发明申请
    • Process For Forming Crosslinked and Branched Polymers
    • 形成交联和支化聚合物的方法
    • US20120289620A1
    • 2012-11-15
    • US13520866
    • 2010-12-22
    • Damien DeheunynckValerie Smits
    • Damien DeheunynckValerie Smits
    • C08F255/02C08J3/24
    • C08F255/02C08J3/242C08J2309/00C08J2323/02C08F222/1006C08F236/14
    • The invention provides a polymer composition comprising a polyolefin or a diene elastomer, and an unsaturated compound (A) containing at least two groups each comprising an olefinic —C═C— bond or acetylenic —C≡C— bond, characterized in that each group comprising an olefinic —C═C— bond or acetylenic —C≡C— bond in the unsaturated compound (A) contains 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 —C═C— or acetylenic —C≡C— unsaturation. The use of a multifunctional unsaturated compound (A) containing an aromatic ring or a further olefinic bond conjugated with the olefinic —C═C— or acetylenic —C≡C— unsaturation of the multifunctional unsaturated compound gives enhanced crosslinking and/or branching yield and/or less degradation of the polymer compared to crosslinking with a multifunctional unsaturated compound not containing an aromatic ring or a further olefinic bond.
    • 本发明提供包含聚烯烃或二烯弹性体的聚合物组合物和含有至少两个各自包含烯属-C≡C-键或炔属-C≡C-键的基团的不饱和化合物(A),其特征在于每个基团 在不饱和化合物(A)中包含烯属-C≡C-键或炔属-C≡C-键含有芳环或其它烯属双键或炔属不饱和键,芳环或其它烯属双键或炔属不饱和键 与烯属-C≡C-或炔属-C≡C-不饱和键共轭。 使用多官能不饱和化合物(A)含有芳族环或与多官能不饱和化合物的-C≡C-或炔属-C≡C-不饱和烯烃共轭的另外的烯键,可提高交联和/或支链产率, /或者与不含芳族环或另外的烯键的多官能不饱和化合物的交联相比,聚合物的降解降低。