利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

35 条记录 (耗时 0.02 秒)

    Pre-polymerized catalyst components for the polymerization of olefins
    8.
    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

    申请人： Mario Sacchetti ,  Diego Brita ,  Gianni Collina

    发明人： Mario Sacchetti ,  Diego Brita ,  Gianni Collina

    IPC分类号： B01J31/06

    CPC分类号： C08F4/6492 ,  C08F4/6555 ,  C08F4/6567 ,  C08F110/02 ,  C08F110/06 ,  C08F2500/18 ,  C08F2500/07 ,  C08F2500/12

    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 component for the polymerization of olefins based on 1,3-diethers
    9.
    发明申请
    Catalyst component for the polymerization of olefins based on 1,3-diethers 审中-公开
    用于基于1,3-二醚的烯烃聚合的催化剂组分

    公开(公告)号：US20100240846A1

    公开(公告)日：2010-09-23

    申请号：US12308423

    申请日：2007-06-01

    申请人： Gianni Collina ,  Ofelia Fusco ,  Benedetta Gaddi ,  Giampiero Morini ,  Mario Sacchetti ,  Gianni Vitale

    发明人： Gianni Collina ,  Ofelia Fusco ,  Benedetta Gaddi ,  Giampiero Morini ,  Mario Sacchetti ,  Gianni Vitale

    IPC分类号： C08F4/602 ,  C08F4/60

    CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F4/651 ,  C08F2500/18 ,  C08F2500/24

    摘要： Catalyst components for the polymerization of olefins comprising Mg, Ti, halogen and 1,3-diethers as internal donors having an improved balance of properties in terms of activity and morphological stability are obtained by a process comprising: (A) A first step comprising reacting an adduct of formula MgCl2(ROH)n, where R is a C1-C10 alkyl group, and n is from 0.5 to 6, with a titanium compound having at least a Ti—Cl bond at a reaction temperature ranging from 0° C. to 80° C.; (B) A subsequent step comprising contacting the solid product obtained in (A) with an electron donor ED selected from 1,3 diethers with a titanium compound having at least a Ti—Cl bond at a temperature higher than 80° C.; and (C) A subsequent step comprising reacting the solid product coming from (B) with a titanium compound having at least a Ti—Cl bond at a temperature higher than 80° C.

    摘要翻译： 通过包括以下步骤的方法获得包含Mg，Ti，卤素和作为内部供体的1,3-二醚作为内部供体具有改善的活性和形态稳定性能平衡的催化剂组分：（A）第一步，包括使 式中MgCl 2（ROH）n的加合物，其中R为C 1 -C 10烷基，n为0.5至6，钛化合物在0℃的反应温度下至少具有Ti-Cl键。 至80℃。 （B）随后的步骤包括使（A）中获得的固体产物与选自1,3二醚的电子给体ED与具有至少Ti-Cl键的钛化合物在高于80℃的温度下接触; 和（C）随后的步骤包括使来自（B）的固体产物与至少具有Ti-Cl键的钛化合物在高于80℃的温度下反应。

    Catalyst components for the polymerization of olefins and catalysts therefrom obtained
    10.
    发明授权
    Catalyst components for the polymerization of olefins and catalysts therefrom obtained 有权
    用于烯烃聚合的催化剂组分及其催化剂

    公开(公告)号：US06627710B1

    公开(公告)日：2003-09-30

    申请号：US09763218

    申请日：2001-02-16

    申请人： Mario Sacchetti ,  Diego Brita

    发明人： Mario Sacchetti ,  Diego Brita

    IPC分类号： C08F476

    CPC分类号： C08F10/00 ,  C08F110/02 ,  C08F4/6557 ,  C08F4/654 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/18

    摘要： The invention relates to catalyst components, suitable for the preparation of homopolymers and copolymers of ethylene having a broad molecular weight distribution (MWD), which comprise Ti, Mg, Cl, and are characterized by the following properties: surface area, determined by BET method, of lower than 100 m2/g, a total porosity, measured by the mercury method, of higher than 0.25 cm3/g, a pore radius distribution such that at least 45% of the total porosity is due to pores with radius up to 0.1 &mgr;m.

    摘要翻译： 本发明涉及适用于制备具有宽分子量分布（MWD）的乙烯的均聚物和共聚物的催化剂组分，其包含Ti，Mg，Cl，并且其特征在于以下性质：通过BET法测定的表面积 ，低于100m 2 / g，通过汞法测量的总孔隙率高于0.25cm 3 / g，孔半径分布使得总孔隙率的至少45％是由于 半径达0.1um的孔。