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    Method for preparing a vinyl polymer-polyolefine composite
    3.
    发明授权
    Method for preparing a vinyl polymer-polyolefine composite 失效
    乙烯基聚合物 - 聚烯烃复合材料的制备方法

    公开(公告)号：US5312872A

    公开(公告)日：1994-05-17

    申请号：US103886

    申请日：1993-08-06

    申请人： Torvald Vestberg ,  Ismo Lehtiniemi

    发明人： Torvald Vestberg ,  Ismo Lehtiniemi

    IPC分类号： C08F255/00 ,  C08F2/18 ,  C08F255/02 ,  B32B27/30 ,  C08J3/02

    CPC分类号： C08F255/02

    摘要： A method for preparing a polyolefine-vinyl composite, in which method about 10-200 weight fractions of vinyl monomer and about 0.01-4.0 weight fractions of a free radical polymerization initiator, based on 100 weight fractions of vinyl monomer, are impregnated in 100 weight fractions of polyolefine particles by slowly mixing these at a temperature of about 20.degree.-100.degree. C. while continuously or discontinuously adding about 1-60% by weight of water, based on the total weight of the vinyl monomer and the polyolefine, during the maintenance of the particle structure of the polyolefine, is disclosed. A water suspension is prepared by adding water and stabilizing agents to the above-mentioned mixture after a completed impregnation. The total quantity of water is about 80-1000 weight fractions, based on 100 weight fractions of polyolefine+vinyl monomer. The temperature of the water suspension is then increased for polymerizing the vinyl monomer.

    摘要翻译： 一种制备聚烯烃 - 乙烯基复合材料的方法，其中基于100重量份乙烯基单体约10-200重量份的乙烯基单体和约0.01-4.0重量份的自由基聚合引发剂以100重量份 通过在约20℃-100℃的温度下缓慢混合它们，同时连续地或不连续地加入约1-60重量％的水，基于乙烯基单体和聚烯烃的总重量，聚烯烃微粒的分数 公开了维持聚烯烃的颗粒结构。 在完全浸渍之后，通过向上述混合物中加入水和稳定剂来制备水悬浮液。 基于100重量份的聚烯烃+乙烯基单体，水的总量为约80-1000重量份。 然后增加水悬浮液的温度以使乙烯基单体聚合。

    RANDOM PROPYLENE COPOLYMER WITH HIGH COMONOMER CONTENT
    7.
    发明申请
    RANDOM PROPYLENE COPOLYMER WITH HIGH COMONOMER CONTENT 审中-公开
    具有高音质内容的随机丙烯共聚物

    公开(公告)号：US20100256318A1

    公开(公告)日：2010-10-07

    申请号：US12734730

    申请日：2008-11-26

    申请人： Peter Denifl ,  Timo Leinonen ,  Anssi Haikarainen ,  Torvald Vestberg

    发明人： Peter Denifl ,  Timo Leinonen ,  Anssi Haikarainen ,  Torvald Vestberg

    IPC分类号： C08F210/06

    CPC分类号： C08F210/06 ,  C08F2/001 ,  C08F210/16 ,  C08F2500/12

    摘要： The present invention relates to a propylene random copolymer, comprising comonomers selected from the group consisting of ethylene, C4 to C20 alpha-olefins, and any combination thereof, wherein the propylene random copolymer (a) has a comonomer content of at least 3.5 wt.-%, based on the weight of the propylene random copolymer, (b) has a randomness of at least 30%, and (c) is prepared in the presence of a catalyst system comprising solid catalyst particles, wherein the solid catalyst particles (c1) have a specific surface area of less than 20 m2/g, (c2) comprise a transition metal compound which is selected from one of the groups 4 to 10 of the periodic table or a compound of actinide or lanthanide, (c3) comprise a metal compound which is selected from one of the groups 1 to 3 of the periodic table, and (c4) comprise inclusions not having catalytically active sites.

    摘要翻译： 本发明涉及丙烯无规共聚物，其包含选自乙烯，C 4至C 20α-烯烃以及它们的任何组合的共聚单体，其中丙烯无规共聚物（a）的共聚单体含量为至少3.5wt。 - ％，基于丙烯无规共聚物的重量，（b）具有至少30％的随机性，和（c）在包含固体催化剂颗粒的催化剂体系的存在下制备，其中固体催化剂颗粒（c1 ）具有小于20m 2 / g的比表面积，（c2）包含选自周期表第4至10族之一的过渡金属化合物或锕系元素或镧系元素的化合物，（c3）包含 金属化合物，其选自元素周期表第1至3族之一，（c4）包含不具有催化活性位点的夹杂物。

    Process for producing olefin polymers
    8.
    发明授权
    Process for producing olefin polymers 失效
    生产烯烃聚合物的方法

    公开(公告)号：US07531607B2

    公开(公告)日：2009-05-12

    申请号：US10582781

    申请日：2004-12-17

    申请人： Torvald Vestberg

    发明人： Torvald Vestberg

    IPC分类号： C08F4/649 ,  C08F110/06 ,  C08F210/06

    CPC分类号： C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  C08F2400/02 ,  C08F4/6465 ,  C08F2/00 ,  C08F2/38 ,  C08F2/40 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/15

    摘要： A process for producing at least two different propylene polymer grades, in which process the isotacticity of the polymer is changed while keeping the melt flow rate of the polymer at a predetermined level during a transition of production from a first polymer grade to a second. The process is carried out in a polymerization arrangement comprising at least one polymerization reactor, where propylene is polymerized, optionally with comonomers, under polymerization conditions in the presence of hydrogen as a molecular weight controlling agent and a Ziegler-Natta catalyst system. The catalyst system comprises a catalyst component and an external donor. During a transition of production from the first polymer grade to the second, the external donor is changed, but the hydrogen feed is kept at a predetermined level.

    摘要翻译： 一种生产至少两种不同丙烯聚合物级别的方法，其中改变聚合物的全同立构规整度，同时保持聚合物的熔体流动速率在从第一聚合物级到第二级的生产过渡期间处于预定水平。 该方法在包含至少一个聚合反应器的聚合装置中进行，其中丙烯聚合，任选地与共聚单体聚合，在氢气作为分子量控制剂和齐格勒 - 纳塔催化剂体系的存在下在聚合条件下进行。 催化剂体系包括催化剂组分和外部供体。 在从第一聚合物级到第二级的生产过渡期间，改变外供体，但氢进料保持在预定水平。