Stabilized metallocene compounds of transition metals of group 4 and process for their preparation
    41.
    发明公开
    Stabilized metallocene compounds of transition metals of group 4 and process for their preparation 有权
    第4组过渡金属稳定的金属茂化合物及其制备方法

    公开(公告)号:EP1403294A3

    公开(公告)日:2004-04-07

    申请号:EP03078025.8

    申请日:2003-09-24

    摘要: 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):-(A x D y U z ) R I 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.

    摘要翻译: 包含环戊二烯基和与M键合的至少一个低聚基团R'的元素表中第4族金属M的金属茂化合物,其具有下式(II): - (A x D y U z)R 1其中:A 表示任何衍生自可通过阴离子聚合可聚合的乙烯基芳族基团的单体单元,具有6-20个碳原子; D表示衍生自可通过阴离子聚合进行聚合的共轭二烯烃的任何单体单元,具有4至20个碳原子; U表示衍生自可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的任何通用任选单体单元; RI表示氢或具有1至20个碳原子的烃基,每个指数“x”和“y”可以独立地为零或整数,条件是总和(x + y)等于或大于2,优选为 2和50,更优选2和25之间; “z”可以是零或1-20的整数。所述配合物可以用于形成催化体系,特别是用于烯烃(共)聚合的催化体系,其具有增强的稳定性和高活性,从而能够 运输和储存很长一段时间。

    Process for the hydrogenation of homopolymers and copolymers of conjugated dienes
    42.
    发明公开
    Process for the hydrogenation of homopolymers and copolymers of conjugated dienes 有权
    制备聚合物和共轭二烯的共聚物的氢化

    公开(公告)号:EP1403286A1

    公开(公告)日:2004-03-31

    申请号:EP03077945.8

    申请日:2003-09-18

    IPC分类号: C08C19/02 C08F8/04

    CPC分类号: C08C19/02 C08F8/04

    摘要: A process is described for the hydrogenation of olefin double bonds present in polymers and copolymers of conjugated dienes, which comprises putting the above polymer or copolymer of conjugated dienes in contact with hydrogen in an inert solvent, in the presence of a catalytic system, characterized in that the above catalytic system essentially consists of one or more titanium compounds selected from those having general formula (I)
    wherein:
    M is selected from Ti(III) and Ti(IV) and their mixtures.

    摘要翻译: 存在于聚合物和共轭二烯的共聚物的烯烃双键被通过将共轭二烯的聚合物或共聚物中的接触与氢在惰性溶剂中,并在含有钛化合物的催化体系的存在下氢化。 中存在的聚合物和共轭二烯的共聚物的烯烃双键的氢化包括使聚合物或共轭二烯的共聚物在接触与氢在惰性溶剂中和在具有式(I)的钛化合物(S)的催化体系的存在。 [图像M:钛(III),钛(IV),或它们的混合物; R '':有机或无机基团的阴离子性质differentFrom(任选地substituiertem)环戊二烯,或低聚式的基团的 - (A的xD YU Z)R(I)>; R 1-R连接到配位到金属M,选自H或环戊二烯基的任何其它有机或无机取代基中选择的环戊二烯基或5atoms自由基; ř6inorganic阴离子,具有1-20C的烃基,或R“; 瓦特:0或1; R:式低聚基团 - (A的xD YU Z)R(I)>; 答:从通过阴离子聚合的乙烯基芳族聚合基团的单体单元6-20C; D:使用阴离子聚合共轭二烯烃聚合4-20C单体单元; U:由不饱和化合物共聚合的通用可选的单体单元与D或A; R(I)> 1-20C烃基; X,Y:0或在整数;和z是0或1-20。 x和y的总和为至少2,优选2-50,更优选2-25。

    Process for the preparation of MFI-Type zeolitic catalysts
    50.
    发明公开
    Process for the preparation of MFI-Type zeolitic catalysts 有权
    Verfahren zur Herstellung von Zeolithkatalysatoren des MFI-Typs

    公开(公告)号:EP1314475A1

    公开(公告)日:2003-05-28

    申请号:EP02079730.4

    申请日:2002-11-13

    摘要: The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form.
    The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a suitable combination of a non-ionic surface-active agent and a cationic surface-active agent, a dispersion of particles of zeolitic material of the MFI type in a silica sol.

    摘要翻译: 本发明涉及一种以球形形式制备MFI型沸石催化剂的方法。 该方法包括在非离子表面活性剂或非离子表面活性剂和阳离子表面活性剂的合适组合的存在下在链烷烃中乳化和固结,沸石颗粒的分散体 二氧化硅溶胶中MFI型材料。