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48 条记录 (耗时 0.032 秒)

    Catalyst components for the polymerization of olefins
    21.
    发明授权
    Catalyst components for the polymerization of olefins 失效
    用于烯烃聚合的催化剂组分

    公开(公告)号：US07208436B2

    公开(公告)日：2007-04-24

    申请号：US10517587

    申请日：2003-05-19

    申请人： Tiziano Dall'Occo ,  Gianfrancesco Margelli

    发明人： Tiziano Dall'Occo ,  Gianfrancesco Margelli

    IPC分类号： C08F4/42

    CPC分类号： C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08F4/651 ,  C08F4/6365 ,  C08F2500/12 ,  C08F2500/20 ,  C08F210/08

    摘要： Catalyst components for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1–12 carbon atoms, comprising Mg, Ti, Cl, OR groups, where R is a C1–C10 alkyl group optionally containing heteroatoms, and an ether having two or more ether groups, characterized by the fact that the Mg/Ti weight ratio is lower than 3 from 2 to 6.5 the Cl/Ti weight ratio is from 1.5 to 6, the OR/Ti weight ratio is from 0.5 to 3.5 and at least 50% of the Titanium atoms are in a valence state lower than 4. The said catalyst components allow the preparation of ethylene copolymers with a low content of xylene soluble fractions.

    摘要翻译： 用于烯烃CH 2 -CHR的聚合的催化剂组分，其中R是氢或具有1-12个碳原子的烃基，其包含Mg，Ti，Cl，OR基团，其中R是C1- 任选含有杂原子的C10烷基和具有两个或更多个醚基的醚，其特征在于Mg / Ti重量比低于3的值为2至6.5，Cl / Ti重量比为1.5至6，OR / Ti重量比为0.5-3.5，并且至少50％的钛原子处于低于4的价态。所述催化剂组分允许制备低二甲苯可溶组分含量的乙烯共聚物。

    Catalyst for the polymerization of olefins
    24.
    发明授权
    Catalyst for the polymerization of olefins 失效
    用于烯烃聚合的催化剂

    公开(公告)号：US06716940B1

    公开(公告)日：2004-04-06

    申请号：US10070120

    申请日：2002-02-28

    申请人： Tiziano Dall'Occo ,  Giovanni Baruzzi ,  Diego Brita ,  Mario Sacchetti

    发明人： Tiziano Dall'Occo ,  Giovanni Baruzzi ,  Diego Brita ,  Mario Sacchetti

    IPC分类号： C08F442

    CPC分类号： C08F10/00 ,  C08F4/6426

    摘要： Catalyst system for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising the product of the reaction between (a) a solid catalyst component comprising Mg, Ti, and halogen, (b) dimethylaluminium chloride (DMAC) and (c) an alkylaluinium compound, in which the molar ratio between (b) and (c) is lower than 10. This kind of catalyst system is particularly suitable for the preparation of copolymers of ethylene with &agr;-olefins due to its high capacity for incorporating the comonomer while at the same time maintaining high yields.

    摘要翻译： 用于烯烃CH 2 = CHR（其中R是氢或具有1-12个碳原子的烃基）聚合的催化剂体系包括（a）包含Mg，Ti和卤素的固体催化剂组分（b ）二甲基氯化铝（DMAC）和（c）（b）和（c）之间的摩尔比低于10的烷基铝化合物。这种催化剂体系特别适用于制备乙烯与α- 烯烃，因为它具有高的并入共聚单体的能力，同时保持高产率。

    Process for preparing elastomeric ethylene copolymers
    27.
    发明授权
    Process for preparing elastomeric ethylene copolymers 失效
    制备弹性乙烯共聚物的方法

    公开(公告)号：US5532326A

    公开(公告)日：1996-07-02

    申请号：US341441

    申请日：1994-11-14

    申请人： Tiziano Dall'Occo ,  Floriano Guglielmi ,  Umberto Zucchini, deceased

    发明人： Tiziano Dall'Occo ,  Floriano Guglielmi ,  Umberto Zucchini, deceased

    IPC分类号： C08F4/658 ,  C08F4/60 ,  C08F10/00 ,  C08F10/02 ,  C08F210/02 ,  C08F4/634

    CPC分类号： C08F210/02 ,  Y10S526/901

    摘要： Process for preparing elastomeric copolymers of ethylene with .alpha.-olefins CH.sub.2 .dbd.CHR, optionally containing minor proportions of a diene, characterized by the use during the polymerization of a catalyst comprising the reaction product of:(I) a solid component comprising VCl.sub.3 supported on a magnesium dihalide in spherical or spheroidal shape, in active form;(II) an alkyaluminum compound;(III) optionally a halohydrocarbon.VCl.sub.3 is precipitated on said magnesium dihalide by heating VCl.sub.4 solutions in inert hydrocarbon solvents.

    摘要翻译： 制备乙烯与α-烯烃CH2 = CHR的弹性体共聚物的方法，任选地含有少量的二烯，其特征在于在聚合催化剂期间使用的催化剂，其包含以下反应产物：（I）包含负载在 活性形式的球形或球状二卤化镁; （II）烷基铝化合物; （III）任选的卤代烃。 VCl 3通过在惰性烃溶剂中加热VCl 4溶液沉淀在所述二卤化镁上。

    Supported catalysts for the polymerization of olefins
    29.
    发明授权
    Supported catalysts for the polymerization of olefins 失效
    用于烯烃聚合的负载催化剂

    公开(公告)号：US06774194B2

    公开(公告)日：2004-08-10

    申请号：US10184679

    申请日：2002-06-26

    申请人： Enrico Albizzati ,  Tiziano Dall'Occo ,  Luigi Resconi ,  Fabrizio Piemontesi

    发明人： Enrico Albizzati ,  Tiziano Dall'Occo ,  Luigi Resconi ,  Fabrizio Piemontesi

    IPC分类号： C08F402

    CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65922 ,  C08F110/02 ,  C08F210/16 ,  Y10S526/904 ,  Y10S526/943 ,  C08F4/602 ,  C08F4/63916 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/20 ,  C08F210/08

    摘要： Supported catalysts for the polymerization of olefins comprise the following components: (A) a porous organic support functionalised with groups having active hydrogen atoms; (B) an organo-metallic compound of aluminium containing heteroatoms selected from oxygen, nitrogen and sulphur; and (C) a compound of a transition metal selected from those of groups IVb, Vb or VIb of the Periodic Table of the Elements, containing ligands of the cyclopentadienyl type. These supported catalysts, obtainable in the form of spherical particles, can be used in the polymerization reaction of olefins either in liquid or in gas phase, thus producing polymers endowed with a controlled morphology and with a high bulk density.

    摘要翻译： 用于烯烃聚合的载体催化剂包括以下组分：（A）用具有活性氢原子的基团官能化的多孔有机载体;（B）含有选自氧，氮和硫的杂原子的铝的有机金属化合物; 和（C）选自元素周期表IVb，Vb或VIb族的过渡金属的化合物，其含有环戊二烯基型配体。可以使用可以球形颗粒形式获得的这些负载型催化剂 在烯烃在液相或气相中的聚合反应中，从而产生具有受控形态和高体积密度的聚合物。