Pre-polymerized catalyst components for the polymerization of olefins
    1.
    发明授权
    Pre-polymerized catalyst components for the polymerization of olefins 有权
    用于烯烃聚合的预聚合催化剂组分

    公开(公告)号:US07223711B2

    公开(公告)日:2007-05-29

    申请号:US10030466

    申请日:2001-05-07

    IPC分类号: B01J31/06

    摘要: Catalyst components for the preparation of ethylene (co)polymers capable to produce polymers with high bulk density, to avoid the problems of formation of fines and that have a high activity are provided. Said catalyst components are characterized by comprising a non-stereospecific solid catalyst component, comprising a titanium compound and a magnesium dihalide, which is pre-polymerized with an alpha olefin CH2═CHR1 wherein R is a C1–C8 alkyl group, to such an extent that the amount of the α-olefin pre-polymer is up to 100 g per g of said solid catalyst component.

    摘要翻译: 提供了用于制备能够生产具有高堆积密度的聚合物的乙烯(共)聚合物的催化剂组分,以避免细粉形成和具有高活性的问题。 所述催化剂组分的特征在于包含非立体特异性固体催化剂组分,其包含钛化合物和二卤化镁,其与α-烯烃CH 2 - 2 -CHR 1 - SUP>其中R是C1-C8烷基,使得α-烯烃预聚物的量高达100g每克所述固体催化剂组分。

    Catalyst components for the polymerization of olefins
    3.
    发明授权
    Catalyst components for the polymerization of olefins 有权
    用于烯烃聚合的催化剂组分

    公开(公告)号:US09200094B2

    公开(公告)日:2015-12-01

    申请号:US12224008

    申请日:2007-02-09

    摘要: The present invention relates to catalysts component for the polymerization of ethylene and its mixtures with olefins CH2═CHR, wherein R is an alkyl, cycloalkyl or aryl radical having 1-12 carbon atoms, comprising Ti, Mg, halogen, and electron donor belonging to 1,2-diethers as internal electron donor compound. The catalyst of the invention is suitably used in (co)polymerization processes of ethylene to prepare (co)polymers having narrow Molecular Weight Distribution (MWD) and high bulk density.

    摘要翻译: 本发明涉及用于乙烯及其与烯烃CH 2 = CHR的混合物的聚合的催化剂组分,其中R是具有1-12个碳原子的烷基,环烷基或芳基,包括Ti,Mg,卤素和属于 1,2-二醚作为内电子给体化合物。 本发明的催化剂适用于乙烯的(共)聚合方法,以制备具有窄分子量分布(MWD)和高堆积密度的(共)聚合物。

    Multistage Process for the Polymerization of Ethylene
    8.
    发明申请
    Multistage Process for the Polymerization of Ethylene 有权
    乙烯聚合的多步法

    公开(公告)号:US20120010374A1

    公开(公告)日:2012-01-12

    申请号:US13201202

    申请日:2010-02-15

    IPC分类号: C08F2/01

    摘要: The present invention relates to a slurry process for preparing an ethylene polymer having a melt flow ratio F/P, according to ASTM 1238, of higher than 25, carried out in two or more stages of polymerization at temperatures in the range from 60 to 120° C., in which at least two of the said two or more polymerization stages are carried out under different concentration of a molecular weight regulator, said process being carried out in the presence of a catalyst system comprising the product obtained by contacting (A) a solid catalyst component comprising Ti, Mg, halogen, and having a porosity (PF), measured by the mercury method and due to pores with radius equal to, or lower than, 1 μm of at least 0.3 cm3/g and a surface area determined by BET method, of lower than 100 m2/g, and (B) of an organoaluminum compound.

    摘要翻译: 本发明涉及一种用于制备乙烯聚合物的浆料方法,所述乙烯聚合物的熔体流动比F / P(根据ASTM 1238)高于25,在60至120℃的温度范围内进行两个或多个聚合阶段 其中所述两个或更多个聚合阶段中的至少两个在不同浓度的分子量调节剂下进行,所述方法在催化剂体系存在下进行,所述催化剂体系包含通过使(A) 包含Ti,Mg,卤素的固体催化剂组分,并且具有通过汞法测量的孔隙率(PF),并且由于具有等于或低于1μm至少为0.3cm 3 / g的1μm的孔和表面积 通过BET法测定,低于100m 2 / g,和(B)有机铝化合物。

    Components and catalysts for the polymerization of olefins
    10.
    发明申请
    Components and catalysts for the polymerization of olefins 失效
    用于烯烃聚合的组分和催化剂

    公开(公告)号:US20080146756A1

    公开(公告)日:2008-06-19

    申请号:US11200618

    申请日:2005-08-05

    IPC分类号: C08F4/654 C08F4/651

    摘要: A catalyst component for the polymerization of olefins comprising a titanium compound, a Mg-dihalide, a difunctional electron donor compound (ED) selected from diesters, diketones, diamines or diethers, and a monofunctional electron donor compound (MD) selected from ethers, esters, amines or ketones, wherein a molar ratio ED/MD is higher than 10.

    摘要翻译: 用于烯烃聚合的催化剂组分,包括钛化合物,二卤化镁,选自二酯,二酮或二醚的双官能电子给体化合物(ED)和选自醚,酯的单官能电子给体化合物(MD) ,胺或酮,其中ED / MD的摩尔比高于10。