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    • 22. 发明授权
    • Modified polymer, rubber composition, and tire
    • 改性聚合物,橡胶组合物和轮胎
    • US08202944B2
    • 2012-06-19
    • US11722892
    • 2005-12-19
    • Eiju SuzukiTetsuya Omura
    • Eiju SuzukiTetsuya Omura
    • C08C19/22C08F8/30C08K3/04B60C1/00
    • C08C19/44B60C1/00C08F8/30
    • The present invention provides a modified polymer, which is obtained by reacting, with an active metal bonded to a polymer, a modifier represented by the general formula (I) (where X1 to X5 each represent a hydrogen atom or a specific monovalent functional group, and at least one of those is other than a hydrogen atom, R1 to R5 each represent a single bond or a divalent hydrocarbon group having 1 to 18 carbon atoms, and a plurality of aziridine rings may be bonded through any of X1 to X5 and R1 to R5). More particularly, the present invention provides a novel modified polymer which has excellent interaction with carbon black and enables improvement in dispersibility of the carbon black when used in a rubber composition blended with the carbon black, a rubber composition containing the modified polymer and capable of providing a tire excellent in low heat generating property, rupture characteristics, and abrasion resistance, and a tire made of the rubber composition and having the above-mentioned characteristics.
    • 本发明提供一种改性聚合物,其通过与结合到聚合物上的活性金属与通式(I)表示的改性剂(其中X1至X5各自表示氢原子或特定一价官能团, 并且其中至少一个不是氢原子,R 1至R 5各自表示单键或具有1至18个碳原子的二价烃基,并且多个氮丙啶环可以通过X1至X5和R1中的任一个键合 到R5)。 更具体地说,本发明提供了与炭黑具有优异的相互作用的新颖的改性聚合物,并且当用于与炭黑混合的橡胶组合物中时,能够提高炭黑的分散性,含有改性聚合物的橡胶组合物能够提供 低发热性,断裂特性和耐磨性优异的轮胎,以及由该橡胶组合物制成的具有上述特性的轮胎。
    • 24. 发明申请
    • Modified Conjugated Diene Polymer, Polymerization Intitiator, Method of Producing the Same, and Rubber Composition
    • 改性共轭二烯聚合物,聚合引发剂,其制备方法和橡胶组合物
    • US20080033110A1
    • 2008-02-07
    • US10599651
    • 2005-03-17
    • Eiju SuzukiYoichi Ozawa
    • Eiju SuzukiYoichi Ozawa
    • C08F36/04C08F4/06C08L15/00
    • C08L15/00C08C19/44C08F4/086C08F4/10C08F36/04Y10T152/10495
    • This invention relates to a novel polymerization initiator capable of introducing an active amino proton into a polymerization starting terminal without losing polymerization activity, and a novel modified conjugated diene polymer being excellent in the interaction with a filler and capable of improving a low heat buildup of a rubber composition, and more particularly to a polymerization initiator being a diamine compound in which one amino group is protected with a silylating agent and an active proton of the other amino group is replaced with an alkali metal or an alkaline earth metal, and a modified conjugated diene polymer which can be produced by using such a polymerization initiator and is a homopolymer of a conjugated diene compound or a copolymer of a conjugated diene compound and an aromatic vinyl compound and has a residue derived from a diamine compound at its polymerization starting terminal.
    • 本发明涉及一种能够在聚合起始末端引入活性氨基质子而不失去聚合活性的新型聚合引发剂,以及与填料相互作用优异且能够改善低聚合度的新型改性共轭二烯聚合物 更具体地说,涉及作为二胺化合物的聚合引发剂,其中一个氨基被甲硅烷基化剂保护,另一个氨基的活性质子被碱金属或碱土金属代替,并且改性共轭 二烯聚合物,其可以通过使用这种聚合引发剂制备,并且是共轭二烯化合物的均聚物或共轭二烯化合物和芳族乙烯基化合物的共聚物,并且在其聚合起始末端具有衍生自二胺化合物的残基。
    • 30. 发明申请
    • MODIFIED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITIONS AND TIRES
    • 改性共混二烯共聚物,橡胶组合物和轮胎
    • US20090292043A1
    • 2009-11-26
    • US11911592
    • 2006-04-17
    • Junko KurazumiEiju SuzukiYoichi Ozawa
    • Junko KurazumiEiju SuzukiYoichi Ozawa
    • C08J5/14C08F236/04C08F236/06
    • C08C19/44B60C1/00B60C1/0016C08K3/04C08K3/36C08L7/00C08L9/00C08L15/00C08L21/00C08L2666/08
    • The present invention provides a modified conjugated diene polymer that is prepared by polymerization of a conjugated diene compound using a catalyst containing a lanthanoid rare earth element compound in an organic solvent and then modifying the resulting polymer having an active organic metal site with a modifier, wherein the modification efficiency is not less than 15% and the cis-1,4 bond content in the conjugated diene moiety measured by Fourier transform infrared spectroscopy satisfies the relationship (I): cis-1,4 bond content≧98.00(%)  (I), or the modification efficiency is not less than 75% and the cis-1,4 bond content in the conjugated diene moiety measured by Fourier transform infrared spectroscopy satisfies the relationship (II): 94.00(%)≦cis-1,4 bond content
    • 本发明提供一种改性共轭二烯聚合物,其通过使用含有镧系稀土元素化合物的催化剂在有机溶剂中使共轭二烯化合物聚合,然后用改性剂改性所得到的具有活性有机金属部位的聚合物而制备,其中 改性效率不低于15%,通过傅里叶变换红外光谱测量的共轭二烯部分中的顺式-1,4键含量满足关系式(I):顺式-1,4键含量> = 98.00(%)( I),或者通过傅里叶变换红外光谱测定的共轭二烯部分中的顺式-1,4键含量满足关系式(II):94.00(%)<=顺式-1, 4键含量本发明还提供含有改性共轭二烯聚合物的橡胶组合物,并赋予轮胎低发热,令人满意的破坏特性和高耐磨性, 以及由橡胶组合物构成的轮胎,具有这些特性。