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    • 4. 发明授权
    • Stabilized metallocene compounds of transition metals of group 4 and process for their preparation
    • 第4组过渡金属的稳定金属茂化合物及其制备方法
    • US06833465B2
    • 2004-12-21
    • US10670348
    • 2003-09-26
    • Francesco MasiAnna SommazziGiampietro BorsottiEvelina BallatoRoberto Santi
    • Francesco MasiAnna SommazziGiampietro BorsottiEvelina BallatoRoberto Santi
    • C07F1700
    • C08F10/00C07F17/00C08F4/65908C08F8/04C08F110/02C08F210/16Y10S526/943C08F4/65925C08F4/65927C08F4/6592C08F2500/03C08F210/14
    • A metallocene compound of a metal M of group 4 in the table of elements, comprising a cyclopentadienyl group and at least one oligomeric group R′ bonded to M, having the following formula (II): -(AxDyUz)RI  (II) wherein: A represents any monomeric unit deriving from a vinylaromatic group polymerizable by means of anionic polymerization, having from 6 to 20 carbon atoms; D represents any monomeric unit deriving from a conjugated diolefin polymerizable by means of anionic polymerization, having from 4 to 20 carbon atoms; U represents any generic optional monomeric unit deriving from an unsaturated compound copolymerizable with any of the above conjugated diolefins D or vinylaromatic compounds A; RI represents hydrogen or a hydrocarbyl group having from 1 to 20 carbon atoms, each index “x” and “y” can be independently zero or an integer, provided the sum (x+y) is equal to or higher than 2, preferably between 2 and 50, more preferably between 2 and 25; “z” can be zero or an integer ranging from 1 to 20. Said complex can be used for the formation of catalytic systems, in particular for the (co)polymerization of olefins, with enhanced stability and a high activity, so as to enable transportation and storage for prolonged periods of time.
    • 元素表中第4族金属M的茂金属化合物,其包含环戊二烯基和至少一个与M键合的低级基团R',具有下式(II):其中:A表示衍生自 通过阴离子聚合可聚合的乙烯基芳族基团,具有6至20个碳原子; D表示衍生自具有4至20个碳原子的通过阴离子聚合可共聚的共轭二烯烃的任何单体单元; U表示任何通用的任选单体单元衍生物 可以与任何上述共轭二烯烃D或乙烯基芳族化合物A共聚的不饱和化合物; R 1表示氢或具有1至20个碳原子的烃基,每个指数“x”和“y”可以独立地为零或 (x + y)等于或高于2,优选在2和50之间,更优选在2和25之间;“z”可以是0或1至20的整数。 lex可以用于形成催化体系,特别是用于烯烃的(共)聚合,具有增强的稳定性和高活性,从而使得运输和储存更长时间。