Catalytic composition for the (co) polymerization of alpha-olefins
    2.
    发明申请
    Catalytic composition for the (co) polymerization of alpha-olefins 有权
    α-烯烃(共)聚合的催化组合物

    公开(公告)号:US20040127657A1

    公开(公告)日:2004-07-01

    申请号:US10670211

    申请日:2003-09-26

    Abstract: Catalytic composition for the (co)polymerization of ethylene and other null-olefins, including a metallocene complex of a metal M of group 4 of the periodic table or the product obtainable from the same combined with a suitable activator, wherein said metallocene complex includes at least one cyclopentadienyl group and at least one unsaturated hydrocarbyl organic group bonded to the metal M, having the following formula (I): -(AxDyUz)RInullnull(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 co-polymerizable 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 nullxnull and nullynull can be independently zero or an integer, provided the sum (xnully) is equal to or higher than 2, preferably between 2 and 50, more preferably between 2 and 25; nullznull can be zero or an integer ranging from 1 to 20.

    Abstract translation: 乙烯和其它α-烯烃(包括周期表第4族金属M的茂金属络合物)的共聚合的催化组合物或其合适的活化剂得到的产物,其中所述茂金属络合物包括在 至少一个环戊二烯基和至少一个与金属M键合的不饱和烃基有机基团,具有下式(I): - (AxDyUz)R(I)其中:A表示衍生自可聚合乙烯基芳族基团的任何单体单元 通过阴离子聚合,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聚合的共轭二烯烃的任何单体单元; U表示与任何上述共轭二烯烃D或乙烯基芳族化合物A共可共聚的不饱和化合物衍生的任何通用任选的单体单元; 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”可以独立地为零或整数,条件是和(x + y)等于或高于2 ,优选2至50,更优选2至25; “z”可以为零或整数范围从1到20。

    Elastomeric composition for the insulation of electric cables
    3.
    发明申请
    Elastomeric composition for the insulation of electric cables 审中-公开
    用于电缆绝缘的弹性组合物

    公开(公告)号:US20040242781A1

    公开(公告)日:2004-12-02

    申请号:US10810695

    申请日:2004-03-29

    Inventor: Tiziano Tanaglia

    Abstract: An elastomeric blend is described, which can be used for preparing electric cables comprising one or more polymers selected from: (i) a polymer (Base 1) obtained by means of shear treatment, in the presence of hydroperoxides, of a polymeric base essentially consisting of elastomeric copolymers of ethylene with propylene (EPM) or EPDM terpolymers and relative blends, EPDM terpolymers being preferred; (ii) a copolymer of ethylene with alpha olefins, vinyl acetate or a derivative of acrylic acid (Base 2); said copolymer (ii) having a melting point lower than 115null C., preferably lower than 100null C.

    Abstract translation: 描述了一种弹性体共混物,其可用于制备包含一种或多种聚合物的电缆的电缆,所述聚合物选自:(i)在氢过氧化物存在下通过剪切处理获得的聚合物(基体1),其基本上由 乙烯与丙烯(EPM)或EPDM三元共聚物和相关共混物的弹性体共聚物,EPDM三元共聚物是优选的; (ii)乙烯与α-烯烃的共聚物,乙酸乙烯酯或丙烯酸的衍生物(基料2); 所述共聚物(ⅱ)的熔点低于115℃,优选低于100℃

    Process for the production of mesitylene
    4.
    发明申请
    Process for the production of mesitylene 失效
    生产均三甲苯的方法

    公开(公告)号:US20040225170A1

    公开(公告)日:2004-11-11

    申请号:US10786553

    申请日:2004-02-26

    CPC classification number: C07C5/2737 C07C2529/40 C07C15/02

    Abstract: A process is described for the synthesis of mesitylene, characterized in that mesitylene is obtained starting exclusively from pseudocumene, without the use of any other chemical compound, operating in continuous, at a temperature ranging from 225 to 400null C., at a pressure ranging from 1 to 50 bar, at a weight space velocity ranging from 0.1 to 10 hoursnull1, and in the presence of a catalyst containing a zeolite selected from ZSM-5 zeolite having a crystal lattice based on silicon oxide and aluminum oxide, and ZSM-5 zeolite modified by the partial or total substitution of Si with a tetravalent element such as Ti or Ge and/or the partial or total substitution of Al with other trivalent elements, such as Fe, Ga or B.

    Abstract translation: 描述了用于合成均三甲苯的方法,其特征在于,均匀地从假阳离子开始获得均三甲苯,而不使用在225-400℃的温度范围内连续操作的任何其它化合物,在压力范围 1至50巴,重量空间速度为0.1至10小时-1,并且在含有选自具有基于氧化硅和氧化铝的晶格的ZSM-5沸石的沸石的催化剂存在下, 和通过Si与四价元素如Ti或Ge的部分或全部取代和/或Al与其它三价元素如Fe,Ga或B的部分或全部取代而改性的ZSM-5沸石。

    Process for the preparation of branched polydienes in the presence of catalysts based on rare-earth
    5.
    发明申请
    Process for the preparation of branched polydienes in the presence of catalysts based on rare-earth 有权
    在基于稀土的催化剂存在下制备支链聚二烯的方法

    公开(公告)号:US20040127665A1

    公开(公告)日:2004-07-01

    申请号:US10736744

    申请日:2003-12-17

    CPC classification number: C08F36/04 C08F4/545

    Abstract: A process is described for the preparation of polydienes with a low vinyl content and having a branched structure effected by means of the polymerization of conjugated dienes in the presence of catalysts based on rare-earth compounds. The resulting polymers are characterized in that they have a cis content varying from 80 to 96% and prove to be branched with consequent low viscosity values in solution.

    Abstract translation: 描述了一种制备具有低乙烯基含量并具有通过在基于稀土化合物的催化剂存在下共轭二烯的聚合而实现的支链结构的聚二烯的方法。 所得聚合物的特征在于它们的顺式含量为80至96%,证明是在溶液中具有分支的结果,因此具有低粘度值。

    Process for the hydrogenation of homopolymers and copolymers of conjugated dienes
    9.
    发明申请
    Process for the hydrogenation of homopolymers and copolymers of conjugated dienes 有权
    共聚二烯的均聚物和共聚物的氢化方法

    公开(公告)号:US20040132917A1

    公开(公告)日:2004-07-08

    申请号:US10668288

    申请日:2003-09-24

    CPC classification number: C08C19/02 C08F8/04

    Abstract: 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) 1 wherein: M is selected from Ti(III) and Ti(IV) and their mixtures.

    Abstract translation: 描述了存在于共轭二烯的聚合物和共聚物中的烯烃双键的氢化方法,其包括将上述共轭二烯的聚合物或共聚物与惰性溶剂中的氢接触,在催化体系存在下,其特征在于 上述催化体系基本上由一种或多种选自具有通式(I)的钛化合物组成,其中:M选自Ti(III)和Ti(IV)及其混合物。

    Process for the production of mesitylene and durene
    10.
    发明申请
    Process for the production of mesitylene and durene 失效
    生产均三甲苯和杜烯的方法

    公开(公告)号:US20040127762A1

    公开(公告)日:2004-07-01

    申请号:US10736594

    申请日:2003-12-17

    CPC classification number: C07C6/123 C07C5/2737 C07C15/02

    Abstract: A process is described for the contemporaneous preparation of mesitylene and durene, characterized in that mesitylene and durene are obtained exclusively starting from pseudo-cumene without the use of any further chemical compound, operating in continuous, at a temperature ranging from 210 to 400null C., at a pressure ranging from 1 to 50 bar, with a weight space velocity ranging from 0.1 to 20 hoursnull1 and in the presence of a catalyst based on crystalline metal-silicates in acid form. After the recovery of mesitylene and durene from the reaction raw product, some of the remaining components of the raw product itself are recycled and fed to the reactor together with the pseudo-cumene.

    Abstract translation: 描述了同时制备均三甲苯和杜烯的方法,其特征在于,均三甲苯和杜烯仅从起始伪异丙苯开始获得,而不使用任何进一步的化合物,连续操作,温度范围为210-400℃ 在1至50巴的压力下,重量空间速度为0.1至20小时-1,并且在基于酸形式的结晶金属硅酸盐的催化剂存在下进行。 在从反应原料中回收均三甲苯和杜烯后,原料的其余部分本身被再循环并与假枯烯一起进料到反应器中。

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