PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    2.
    发明申请
    PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 审中-公开
    用于烯烃聚合的预聚合催化剂组分

    公开(公告)号:US20140094576A1

    公开(公告)日:2014-04-03

    申请号:US14123794

    申请日:2012-06-01

    IPC分类号: C08F10/02

    摘要: A pre-polymerized catalyst component for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a C1-C12 hydrocarbon group, characterized by comprising a non-stereospecific solid catalyst component, comprising Ti, Mg and a halogen, said pre-polymerized catalyst component containing an amount of a (co)polymer of a monomer having formula CH2═CHA, where A is a C6 aliphatic or aromatic ring, optionally substituted, up to 5 g per g of said solid catalyst component. Said prepolymerized catalyst shows an excellent balance in terms of activity, morphological stability, reduced tendency to agglomeration and hydrogen response.

    摘要翻译: 用于烯烃CH 2 = CHR聚合的预聚合催化剂组分,其中R是氢或C1-C12烃基,其特征在于包含非立体特异性固体催化剂组分,其包含Ti,Mg和卤素,所述预聚合 催化剂组分含有一定量的具有式CH 2 = CAB的单体((共))聚合物,其中A是任选取代的C 6脂族或芳环,每克所述固体催化剂组分最多达5克。 所述预聚合催化剂在活性,形态稳定性,凝聚趋势和氢反应方面表现出极好的平衡。

    Catalyst components for the polymerization of olefins and catalysts therefrom obtained
    6.
    发明申请
    Catalyst components for the polymerization of olefins and catalysts therefrom obtained 审中-公开
    用于烯烃聚合的催化剂组分及其催化剂

    公开(公告)号:US20100029869A1

    公开(公告)日:2010-02-04

    申请号:US12448288

    申请日:2007-12-10

    摘要: A catalyst component comprising Ti, Mg, Cl, and optionally ORI groups in which RI is a C1-C20 hydrocarbon group up to an amount such as to give a molar ORI/Ti ratio lower than 0.5, characterized by the following properties: surface area, determined by BET method, of lower than 80 m2/g, a total porosity (PT), measured by the mercury method, in the range of 0.60-1.50 cm3/g a difference (PT−PF) of higher than 0.1 in which PT is the total porosity and PF is the porosity due to pore with radius equal to or less than 1 μm; an amount of Ti in the catalyst component of less that 10% wt based on the total weight of catalyst component. The said catalyst components show high morphological stability under the low molecular weight ethylene polymerization conditions while at the same time maintaining characteristics of high activity.

    摘要翻译: 一种催化剂组分,其包含Ti,Mg,Cl和任选的ORI基团,其中RI是C1-C20烃基,直到其摩尔ORI / Ti比低于0.5,其特征在于以下性质:表面积 通过BET法测定,低于80m2 / g,通过汞法测量的总孔隙率(PT)在0.60-1.50cm 3 / ga差异(PT-PF)的范围内高于0.1的PT,其中PT 是总孔隙率,PF是由于具有等于或小于1um的孔的孔隙度; 基于催化剂组分的总重量,催化剂组分中Ti的量小于10%wt。 所述催化剂组分在低分子量乙烯聚合条件下显示出高的形态稳定性,同时保持高活性的特性。

    Process for preparing crystalline ethylene (co)polymers
    8.
    发明授权
    Process for preparing crystalline ethylene (co)polymers 有权
    制备结晶乙烯(共)聚合物的方法

    公开(公告)号:US07834117B2

    公开(公告)日:2010-11-16

    申请号:US11887527

    申请日:2006-03-15

    IPC分类号: C08F110/02

    摘要: A process for preparing crystalline ethylene (co)polymers comprising (co)polymerizing ethylene in the presence of carried out in the presence catalyst system comprising (a) a solid catalyst component comprising Ti, Mg, halogen, ORI groups, where RI is a C1-C12 hydrocarbon group optionally containing heteroatoms, having ORI/Ti molar ratio of at least 0.5, an amount of titanium, with respect to the total weight of said solid catalyst component, higher than 4% by weight, and showing a specific pattern of the SS-NMR; and (b) an aluminum alkyl compound as a cocatalyst. The process allows to obtain in good yields ethylene polymers with narrow MWD.

    摘要翻译: 在包含(a)包含Ti,Mg,卤素,ORI基团的固体催化剂组分的情况下,在存在催化剂体系的情况下,制备结晶乙烯(共)聚合物的方法,包括(共)聚合乙烯,其中RI是C1 -C12烃基,任选地含有杂原子,ORI / Ti摩尔比至少为0.5,相对于所述固体催化剂组分的总重量,钛的量高于4重量%,并且显示了 SS-NMR; 和(b)作为助催化剂的烷基铝化合物。 该方法允许以良好的产率获得具有窄MWD的乙烯聚合物。