中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

14 records (took 0.026 seconds)

    MULTISTAGE PROCESS FOR THE POLYMERIZATION OF ETHYLENE
    2.
    发明申请
    MULTISTAGE PROCESS FOR THE POLYMERIZATION OF ETHYLENE 审中-公开
    乙烯聚合的多级方法

    公开(公告)号：WO2014095473A1

    公开(公告)日：2014-06-26

    申请号：PCT/EP2013/076013

    申请日：2013-12-10

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： MAUS, Andreas ,  MEIER, Gerhardus ,  COLLINA, Gianni ,  BRITA, Diego

    IPC: C08F10/02 ,  C08F2/00 ,  C08F2/14

    CPC classification number: C08F110/02 ,  C08F2/14 ,  C08F10/02 ,  C08F2/001 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/14

    Abstract: The present invention relates to a slurry process for preparing an ethylene polymer having a melt flow ratio F/P, which is the ratio among the melt index value measured according to ASTM 1238 condition "F" and the melt index value measured according to ASTM 1238 condition "P" of equal to or lower than 27, 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 amounts of molecular weight regulator, said process being carried out in the presence of (A) a solid catalyst component comprising Ti, Mg, halogen, having a porosity (PF), measured by the mercury method and due to pores with radius equal to, or lower than, 1µm, of at least 0.3 cm 3 /g and a surface area determined by BET method, of lower than 100 m 2 /g, and being further characterized by the fact that more than 50% of the titanium atoms are in a valence state lower than 4 and (B) of an organoaluminum compound.

    Abstract translation: 本发明涉及一种用于制备熔体流动比F / P的乙烯聚合物的浆料方法，其是根据ASTM 1238条件“F”测量的熔体指数与根据ASTM 1238测量的熔体指数之间的比率 条件“P”等于或低于27，在60至120℃的温度下在两个或更多个聚合阶段进行，其中至少两个所述两个或更多个聚合阶段在 不同量的分子量调节剂，所述方法在（A）含有通过汞法测量的孔隙率（PF）的Ti，Mg，卤素的固体催化剂组分存在下进行，并且由于半径等于 ，或低于1μm，至少0.3cm 3 / g，BET法测定的表面积低于100m2 / g，进一步的特征在于，超过50％的钛原子为 价态低于4和（B）的一个orga 没有铝化合物。

    PROCESS FOR FEEDING A CATALYST IN A POLYMERIZATION REACTOR
    3.
    发明申请
    PROCESS FOR FEEDING A CATALYST IN A POLYMERIZATION REACTOR 审中-公开
    在聚合反应器中加入催化剂的方法

    公开(公告)号：WO2010076289A1

    公开(公告)日：2010-07-08

    申请号：PCT/EP2009/067906

    申请日：2009-12-23

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L. ,  BAITA, Pietro ,  KARER, Rainer ,  MEIER, Gerhardus ,  FUNK, Guido ,  MEI, Gabriele

    Inventor： BAITA, Pietro ,  KARER, Rainer ,  MEIER, Gerhardus ,  FUNK, Guido ,  MEI, Gabriele

    IPC: B01J8/00 ,  B01J8/24 ,  C08F10/00

    CPC classification number: B01J8/0015 ,  B01J8/1827 ,  B01J2208/00752 ,  B01J2208/00769 ,  C08F10/00 ,  C08F210/16 ,  C08F2/34 ,  C08F210/08 ,  C08F2500/12

    Abstract: A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises: (a) storing the catalyst powder under an atmosphere of a liquid C 3 -C 12 alkane; (b) withdrawing from step (a) a measured amount of said catalyst powder by means of a rotary valve; (c) transferring said metered amount of catalyst powder to a catalyst activation section by a continuous pick-up flow of a liquid C 3 -C 12 alkane; (d) contacting the catalyst powder with a liquid phase comprising an organo-aluminum compound and optionally an external donor compound, at a temperature ranging from -20 °C to 60 °C; (e) introducing the activated catalyst powder in one or more gas-phase olefin polymerization reactors, where a gaseous mixture comprising at least one alpha-olefin is subjected to polymerization.

    Abstract translation: 将基于负载在卤化镁上的钛化合物的催化剂粉末引入气相烯烃聚合反应器的方法，其特征在于，其包括：（a）将催化剂粉末在液体C 3 -C 12烷烃的气氛下储存; （b）通过旋转阀从步骤（a）中取出测量量的所述催化剂粉末; （c）通过液体C 3 -C 12烷烃的连续提取流将所述计量的催化剂粉末转移到催化剂活化部分; （d）在-20℃至60℃的温度范围内使催化剂粉末与包含有机铝化合物和任选的外部供体化合物的液相接触; （e）将活化的催化剂粉末引入一个或多个气相烯烃聚合反应器中，其中包含至少一种α-烯烃的气体混合物进行聚合。

    PROCESS FOR FEEDING A CATALYST IN A POLYMERIZATION REACTOR
    7.
    发明公开
    PROCESS FOR FEEDING A CATALYST IN A POLYMERIZATION REACTOR 有权
    EEREN POLYMERISATIONSREAKTOR的VERFAHREN ZUM EINTRAGEN EINES KATALYSATORS

    公开(公告)号：EP2370201A1

    公开(公告)日：2011-10-05

    申请号：EP09796392.0

    申请日：2009-12-23

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： BAITA, Pietro ,  KARER, Rainer ,  MEIER, Gerhardus ,  FUNK, Guido ,  MEI, Gabriele

    IPC: B01J8/00 ,  B01J8/24 ,  C08F10/00

    CPC classification number: B01J8/0015 ,  B01J8/1827 ,  B01J2208/00752 ,  B01J2208/00769 ,  C08F10/00 ,  C08F210/16 ,  C08F2/34 ,  C08F210/08 ,  C08F2500/12

    Abstract: A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises: (a) storing the catalyst powder under an atmosphere of a liquid C
    3 -C
    12 alkane; (b) withdrawing from step (a) a measured amount of said catalyst powder by means of a rotary valve; (c) transferring said metered amount of catalyst powder to a catalyst activation section by a continuous pick-up flow of a liquid C
    3 -C
    12 alkane; (d) contacting the catalyst powder with a liquid phase comprising an organo-aluminum compound and optionally an external donor compound, at a temperature ranging from -20 °C to 60 °C; (e) introducing the activated catalyst powder in one or more gas-phase olefin polymerization reactors, where a gaseous mixture comprising at least one alpha-olefin is subjected to polymerization.

    Abstract translation: 一种将负载在卤化镁上的钛化合物的催化剂粉末引入气相烯烃聚合反应器中的方法，其特征在于它包括：（a）将催化剂粉末储存在液体C 3 -C 12烷烃气氛下; （b）通过旋转阀从步骤（a）中取出测量量的所述催化剂粉末; （c）通过液体C 3 -C 12烷烃的连续吸入流将所述计量的催化剂粉末转移到催化剂活化部分; （d）在-20℃至60℃的温度下使催化剂粉末与包含有机铝化合物和任选的外部供体化合物的液相接触; （e）将活化的催化剂粉末引入一个或多个气相烯烃聚合反应器中，其中包含至少一种α-烯烃的气态混合物进行聚合。

    MULTISTAGE PROCESS FOR THE POLYMERIZATION OF ETHYLENE
    9.
    发明授权
    MULTISTAGE PROCESS FOR THE POLYMERIZATION OF ETHYLENE 有权
    乙烯聚合的多步法

    公开(公告)号：EP2935353B1

    公开(公告)日：2018-03-28

    申请号：EP13802057.3

    申请日：2013-12-10

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： MAUS, Andreas ,  MEIER, Gerhardus ,  COLLINA, Gianni ,  BRITA, Diego

    IPC: C08F10/02 ,  C08F2/00 ,  C08F2/14

    CPC classification number: C08F110/02 ,  C08F2/14 ,  C08F10/02 ,  C08F2/001 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/14

    Abstract: The present invention relates to a slurry process for preparing an ethylene polymer having a melt flow ratio F/P, which is the ratio among the melt index value measured according to ASTM 1238 condition "F" and the melt index value measured according to ASTM 1238 condition "P" of equal to or lower than 27, 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 amounts of molecular weight regulator, said process being carried out in the presence of (A) a solid catalyst component comprising Ti, Mg, halogen, having a porosity (P F ), measured by the mercury method and due to pores with radius equal to, or lower than, 1µm, of at least 0.3 cm 3 /g and a surface area determined by BET method, of lower than 100 m 2 /g, and being further characterized by the fact that more than 50% of the titanium atoms are in a valence state lower than 4 and (B) of an organoaluminum compound.

Patent Agency Ranking