Process for the preparation of random propylene copolymers and products obtained therefrom
    44.
    发明授权
    Process for the preparation of random propylene copolymers and products obtained therefrom 失效
    用于制备无规丙烯共聚物及由其获得的产物的方法

    公开(公告)号:US06365685B1

    公开(公告)日:2002-04-02

    申请号:US09413281

    申请日:1999-10-06

    IPC分类号: C08F444

    摘要: The present invention relates to a process for the preparation of random copolymers of propylene with c2-c10&agr;-olefins, carried out in the presence of a catalyst comprising: A) A solid component comprising a titanium compound supported on mgcl2 in active form and an electron-donor compound; b) An alkyl-al compound, and c) An electron-donor compound selected from the group of 1,3-diethers. The copolymers obtained using the said process show, for an equivalent content of &agr;-olefin, a lower content of xylene-soluble fractions when compared with the copolymers obtained with the catalysts of the prior art.

    摘要翻译: 本发明涉及一种制备丙烯与c2-c10α-烯烃的无规共聚物的方法,该催化剂在催化剂存在下进行,所述催化剂包含:A)包含负载在活性形式的mgCl 2上的钛化合物和电子的固体组分 - 供体化合物; b)烷基铝化合物,和c)选自1,3-二醚的电子给体化合物。使用所述方法获得的共聚物显示出等效的α-烯烃含量较低的 与用现有技术的催化剂获得的共聚物相比,二甲苯可溶级分的含量。

    Catalyst components for the polymerization of olefins
    46.
    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。

    Pre-polymerized catalyst components for the polymerization of olefins
    47.
    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。

    Dynamically vulcanizable polyolefin composition
    49.
    发明授权
    Dynamically vulcanizable polyolefin composition 失效
    动态可硫化聚烯烃组合物

    公开(公告)号:US07019078B1

    公开(公告)日:2006-03-28

    申请号:US09571997

    申请日:2000-05-16

    IPC分类号: C08L23/10 C08L23/04 C08L23/26

    CPC分类号: C08K5/3435 C08K5/14

    摘要: Polyolefin compositions comprising: (A) 20 to 50 parts by weight of a particular propylene polymer having a MWD greater than 3.5; and (B) 50 to 80 parts by weight of an elastomeric ethylene copolymer having a low enthalpy of fusion and a narrow MWD. The compositions of the invention are capable of giving, after dynamic vulcanization, thermoplastic elastomeric products having optimum elastomeric properties and a good balance of physico-mechanical properties.

    摘要翻译: 聚烯烃组合物,其包含:(A)20至50重量份具有MWD大于3.5的特定丙烯聚合物; 和(B)50至80重量份具有低熔融焓和窄MWD的弹性体乙烯共聚物。 本发明的组合物能够在动态硫化后提供具有最佳弹性性质和良好物理机械性能平衡的热塑性弹性体产品。