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    PROCESS FOR THE PREPARATION OF PROPYLENE RANDOM COPOLYMERS
    12.
    发明申请
    PROCESS FOR THE PREPARATION OF PROPYLENE RANDOM COPOLYMERS 审中-公开
    制备丙烯随机共聚物的方法

    公开(公告)号：US20150284488A1

    公开(公告)日：2015-10-08

    申请号：US14436412

    申请日：2013-10-03

    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

    Inventor： Monica Galvan ,  Andreas Neumann ,  Tiziana Caputo ,  Stefano Squarzoni ,  Antonio Mazzucco ,  Ofelia Fusco ,  Benedetta Gaddi ,  Gianni Collina

    IPC: C08F210/06

    CPC classification number: C08F210/06 ,  C08F4/651 ,  C08F210/16 ,  C08F2500/03 ,  C08F2500/26

    Abstract: A process for the preparation of random copolymer of propylene containing up to 6.0% by weight of ethylene units, suitable for the manufacture of pipes, by copolymerizing propylene and ethylene in the presence of a catalyst system comprising the product obtained by contacting the following components:(a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers,(b) an aluminum hydrocarbyl compound, and(c) optionally an external electron donor compound.

    Abstract translation: 一种制备含有至多6.0重量％乙烯单元的丙烯无规共聚物的方法，该乙烯单元通过在包含通过接触以下组分获得的产物的催化剂体系存在下共聚丙烯和乙烯来制备管道： （a）固体催化剂组分，其包含卤化镁，至少具有Ti-卤素键的钛化合物和至少两种电子给体化合物，其中一种以相对于总量为40至90摩尔％的量存在 选自琥珀酸盐，另一种选自1,3-二醚，（b）铝烃基化合物，和（c）任选的外电子给体化合物。

    POLYPROPYLENE FIBER
    13.
    发明申请
    POLYPROPYLENE FIBER 审中-公开
    聚丙烯纤维

    公开(公告)号：US20150191852A1

    公开(公告)日：2015-07-09

    申请号：US14408023

    申请日：2013-06-13

    Applicant: Basell Poliolefine Italia S.r.l.

    Inventor： Monica Galvan ,  Andreas Neumann ,  Roberto Pantaleoni ,  Antonio Mazzucco ,  Ofelia Fusco ,  Benedetta Gaddi ,  Gianni Collina

    IPC: D01F6/06 ,  D04H3/016 ,  D04H3/007 ,  B29C47/00 ,  D04H3/16

    Abstract: Fibers comprising a polypropylene obtainable by a process comprising the steps of: (i) polymerizing propylene in the presence of a catalyst system comprising the product obtained by contacting the following components: (a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being present in an amount from 40 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers, (b) an aluminum hydrocarbyl compound, and (c) optionally an external electron donor compound, to obtain a polypropylene precursor having a melt flow rate MFR1; (ii) subjecting the thus-obtained polypropylene precursor to visbreaking to obtain a visbroken polypropylene having a melt flow rate MFR2; (iii) spinning the visbroken polypropylene obtained in the previous step; wherein MFR2 is comprised between from 15 to 40 g/10 min, the ratio MFR2/MFR1 is comprised between 8 and 18, both MFR1 and MFR2 being measured according to ISO method 1133 (230° C., 2.16 kg).

    Abstract translation: 包含聚丙烯的纤维包括以下步骤：（i）在催化剂体系存在下聚合丙烯，所述催化剂体系包含通过使以下组分接触获得的产物：（a）固体催化剂组分，其包含卤化镁，钛化合物 具有至少一个Ti-卤素键和至少两个电子给体化合物，其中一种以相对于供体总量为40-90％摩尔量存在，选自琥珀酸盐，另一种选自1， 3个二醚，（b）铝烃基化合物和（c）任选的外电子给体化合物，得到熔体流动速率MFR 1的聚丙烯前体; （ii）将由此获得的聚丙烯前体进行减粘裂化以得到熔体流动速率MFR 2的减粘裂化聚丙烯; （iii）纺丝上一步获得的耐磨破坏聚丙烯; 其中MFR 2在15至40g / 10min之间，MFR 2 / MFR 1的比率在8和18之间，MFR 1和MFR 2均根据ISO方法1133（230℃，2.16kg）测量。

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