利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

35 条记录 (耗时 0.024 秒)

    Compounds and catalysts for the polymerization of olefins
    2.
    发明授权
    Compounds and catalysts for the polymerization of olefins 失效
    用于烯烃聚合的化合物和催化剂

    公开(公告)号：US06399533B2

    公开(公告)日：2002-06-04

    申请号：US08927059

    申请日：1997-09-10

    申请人： Mario Sacchetti ,  Stefano Pasquali ,  Gabriele Govoni

    发明人： Mario Sacchetti ,  Stefano Pasquali ,  Gabriele Govoni

    IPC分类号： B01J3100

    CPC分类号： B01J31/143 ,  B01J31/1616 ,  B01J31/2295 ,  B01J31/26 ,  B01J35/023 ,  B01J35/10 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1042 ,  B01J35/108 ,  B01J2531/46 ,  B01J2531/48 ,  B01J2531/49 ,  B01J2531/56 ,  C08F4/65912 ,  C08F4/65927 ,  C08F10/00 ,  C08F210/16 ,  C08F4/65916 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/08

    摘要： The present invention relates to components of catalysts for the polymerization of olefins comprising a metallocene compound and a magnesium halide which have particular values of porosity and surface area. Group 4 and vanadium metallocenes are useful metallocenes and the components typically include an electron donor such as an ether, ester or ketone. In particular the components of the invention have surface area (BET) greater than about 50 m2/g, porosity (BET) greater than about 0.15 cm3/g and porosity (Hg) greater than 0.3 cm3/g, with the proviso that when the surface area is less than about 150 m2g, the porosity (Hg) is less than about 1.5 cm3/g. The magnesium halide is complexed by an ether, ester, or ketone electro donor. The components of the invention are particularly suitable for the preparation of catalysts for the gas-phase polymerization of &agr;-olefins.

    摘要翻译： 本发明涉及包含茂金属化合物和卤化镁的烯烃聚合用催化剂的组分，其具有特定的孔隙率和表面积值。 组4和钒茂金属是有用的金属茂，并且组分通常包括电子给体如醚，酯或酮。 特别地，本发明的组分具有大于约50m 2 / g的表面积（BET），大于约0.15cm 3 / g的孔隙率（BET）和大于0.3cm 3 / g的孔隙率（Hg），条件是当 表面积小于约150m 2 / g，孔隙率（Hg）小于约1.5cm 3 / g。 卤化镁由醚，酯或酮电子给体络合。 本发明的组分特别适用于制备用于α-烯烃气相聚合的催化剂。

    Multistage process for the (CO) polymerization of olefins
    6.
    发明授权
    Multistage process for the (CO) polymerization of olefins 失效
    烯烃（CO）聚合的多步法

    公开(公告)号：US5589549A

    公开(公告)日：1996-12-31

    申请号：US461136

    申请日：1995-06-05

    申请人： Gabriele Govoni ,  Mario Sacchetti ,  Stefano Pasquali

    发明人： Gabriele Govoni ,  Mario Sacchetti ,  Stefano Pasquali

    IPC分类号： C08F4/642 ,  C08F4/60 ,  C08F4/68 ,  C08F10/00 ,  C08F210/16 ,  C08F295/00 ,  C08F10/06

    CPC分类号： C08F295/00 ,  C08F10/00 ,  C08F110/06 ,  C08F2410/05 ,  Y10S526/901 ,  Y10S526/943

    摘要： Multistage process for the polymerization of olefins CH.sub.2 .dbd.CHR, where R is hydrogen or an alkyl, cycloalkyl or aryl radical with 1-10 carbon atoms, comprising two stages of polymerization. In a first stage, in the presence of a titanium or a vanadium catalyst and working in one or more reactors, an olefinic polymer with particular values of porosity is prepared; in a second stage, in the presence of the said porous polymer and a metallocene compound and/or their reaction products, one or more olefins, that are equal to or different from those polymerized in the first stage, are polymerized in one or more reactors.

    摘要翻译： 用于烯烃CH 2 = CHR聚合的多阶段方法，其中R是氢或具有1-10个碳原子的烷基，环烷基或芳基，包括两个阶段的聚合。 在第一阶段中，在钛或钒催化剂的存在下并在一个或多个反应器中加工，制备具有特定孔隙率的烯属聚合物; 在第二阶段中，在所述多孔聚合物和茂金属化合物和/或其反应产物的存在下，与在第一阶段聚合的那些相同或不同的一种或多种烯烃在一个或多个反应器 。

    Components and catalysts for the polymerization of olefins
    7.
    发明授权
    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：US5698487A

    公开(公告)日：1997-12-16

    申请号：US451008

    申请日：1995-05-25

    申请人： Mario Sacchetti ,  Stefano Pasquali ,  Gabriele Govoni

    发明人： Mario Sacchetti ,  Stefano Pasquali ,  Gabriele Govoni

    IPC分类号： C08F4/02 ,  C08F4/642 ,  C08F4/651 ,  C08F4/654 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F210/16 ,  C08F4/634

    CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65922 ,  Y10S526/904 ,  Y10S526/943

    摘要： The present invention relates to components of catalysts for the polymerization of olefins comprising a metallocene compound and a magnesium halide which have particular values of porosity and surface area. In particular the components of the invention have surface area (BET) greater than about 50 m.sup.2 /g, porosity (BET) greater than about 0.15 cm.sup.3 /g and porosity (Hg) greater than 0.3 cm.sup.3 /g, with the proviso that when the surface area is less than about 150 m.sup.2 /g, the porosity (Hg) is less than about 1.5 cm.sup.3 /g. The components of the invention are particularly suitable for the preparation of catalysts for the gas-phase polymerization of .alpha.-olefins.

    摘要翻译： 本发明涉及包含茂金属化合物和卤化镁的烯烃聚合用催化剂的组分，其具有特定的孔隙率和表面积值。 特别地，本发明的组分具有大于约50m 2 / g的表面积（BET），大于约0.15cm 3 / g的孔隙率（BET）和大于0.3cm 3 / g的孔隙率（Hg），条件是当 表面积小于约150m2 / g，孔隙率（Hg）小于约1.5cm 3 / g。 本发明的组分特别适用于制备用于α-烯烃的气相聚合的催化剂。

    Magnesium dischloride-alcohol adducts and catalyst components obtained therefrom
    8.
    发明授权
    Magnesium dischloride-alcohol adducts and catalyst components obtained therefrom 失效
    镁离子 - 醇加合物和由其获得的催化剂组分

    公开(公告)号：US06127304A

    公开(公告)日：2000-10-03

    申请号：US50612

    申请日：1998-03-30

    申请人： Mario Sacchetti ,  Gabriele Govoni ,  Anna Fait

    发明人： Mario Sacchetti ,  Gabriele Govoni ,  Anna Fait

    IPC分类号： B01J31/26 ,  B01J27/138 ,  B01J31/02 ,  C07C31/02 ,  C08F4/02 ,  C08F4/654 ,  C08F10/00 ,  C08F110/06 ,  C08F4/64

    CPC分类号： C08F10/00 ,  B01J27/138 ,  B01J31/0201 ,  C08F110/06

    摘要： The present invention relates to MgCl.sub.2.mROH.nH.sub.2 O adducts, where R is a C.sub.1 -C.sub.10 alkyl, 2.ltoreq.m.ltoreq.4.2, 0.ltoreq.n.ltoreq.0.7, characterized by an X-ray diffraction spectrum in which, in the range of 2.theta. diffraction angles between 5.degree. and 15.degree., the three main diffraction lines are present at diffraction angles 2.theta. of 8.8.+-.0.2.degree., 9.4.+-.0.2.degree. and 9.8.+-.0.2.degree., the most intense diffraction lines being the one at 2.theta.=8.8.+-.0.2.degree., the intensity of the other two diffraction lines being at least 0.2 times the intensity of the most intense diffraction line. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity and stereospecificity with respect to the catalysts prepared from the adducts of the prior art.

    摘要翻译： 本发明涉及MgCl 2·mROH·nH 2 O加合物，其中R是C 1 -C 10烷基，2 = 4.2，0，n = 0.7，其特征在于X射线衍射光谱 在2θ衍射角在5°和15°的范围内，三个主要衍射线存在于衍射角2θ为8.8 +/- 0.2°，9.4 +/- 0.2°和9.8 +/- 0.2° ，最强烈的衍射线是2θ= 8.8 +/- 0.2°的衍射线，其他两条衍射线的强度是最强衍射线的强度的至少0.2倍。 从本发明的加合物获得的催化剂组分能够产生用于烯烃聚合的催化剂，其特征在于相对于由现有技术的加合物制备的催化剂具有增强的活性和立体定向性。

    Magnesium dichloride-alcohol adducts, process for their preparation and catalyst components obtained therefrom
    9.
    发明授权
    Magnesium dichloride-alcohol adducts, process for their preparation and catalyst components obtained therefrom 有权
    二氯化镁 - 醇加合物，其制备方法和由其获得的催化剂组分

    公开(公告)号：US06437061B1

    公开(公告)日：2002-08-20

    申请号：US09625605

    申请日：2000-07-26

    申请人： Mario Sacchetti ,  Gabriele Govoni ,  Anna Fait

    发明人： Mario Sacchetti ,  Gabriele Govoni ,  Anna Fait

    IPC分类号： C08F444

    CPC分类号： C08F10/00 ,  B01J27/138 ,  B01J31/0201 ,  C08F110/06 ,  C08F4/022 ,  C08F4/6543 ,  C08F2500/18 ,  C08F4/6545 ,  C08F2500/20

    摘要： The present invention relates to MgCl2.mROH.nH2O adducts, where R is a C1-C10 alkyl, 2≦m≦4.2, 0≦n≦0.7 , characterized by an X-ray diffraction spectrum in which, in the range of 2&thgr; diffraction angles between 5° and 15°, the three main diffraction lines are present at diffraction angles 2&thgr; of 8.8±0.2°, 9.4±0.2° and 9.8±0.2°, the most intense diffraction lines being the one at 2&thgr;=8.8±0.2°, the intensity of the other two diffraction lines being at least 0.2 times the intensity of the most intense diffraction line. Catalyst components obtained from the adducts of the present invention are capable to give catalysts for the polymerization of olefins characterized by enhanced activity and stereospecificity.

    摘要翻译： 本发明涉及MgCl 2·mROH·nH 2 O加合物，其中R是C 1 -C 10烷基，2 <= m <= 4.2,0 <= n <0.7，其特征在于X射线衍射光谱，其中在 2θ衍射角在5°和15°之间的范围内，三条主要的衍射线分别以8.8±0.2°，9.4±0.2°和9.8±0.2°的衍射角2θ处存在，最强的衍射线为2θ= 8.8±0.2°，其他两条衍射线的强度为最强衍射线强度的至少0.2倍。 由本发明的加合物得到的催化剂组分能够提供催化剂用于以增强的活性和立体定向性为特征的烯烃聚合。