PROCESS FOR THE PREPARATION OF PROPYLENE RANDOM COPOLYMERS
    1.
    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:WO2014060217A1

    公开(公告)日:2014-04-24

    申请号:PCT/EP2013/070609

    申请日:2013-10-03

    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) n 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%乙烯单元的丙烯的无规共聚物的方法,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的存在下共聚合丙烯和乙烯: (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 供体量,选自琥珀酸盐,另一种选自1,3二醚,(b)n烃基铝化合物,和(c)任选的外电子给体化合物。

    POLYPROPYLENE FIBER
    2.
    发明申请
    POLYPROPYLENE FIBER 审中-公开
    聚丙烯纤维

    公开(公告)号:WO2014005816A1

    公开(公告)日:2014-01-09

    申请号:PCT/EP2013/062245

    申请日:2013-06-13

    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 MFRl; (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/10min, the ratio MFR2/MFR1 is comprised between 8 and 18, both MFRl 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, 3二醚,(b)铝烃基化合物和(c)任选的外电子给体化合物,以获得熔体流动速率MFR1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为15至40g / 10min,MFR 2 / MFR 1的比率为8至18,根据ISO方法1133(230℃,2.16kg)测量MFR1和MFR2。

    PROCESS FOR GAS-PHASE POLYMERIZATION OF OLEFINS

    公开(公告)号:WO2018177701A1

    公开(公告)日:2018-10-04

    申请号:PCT/EP2018/055537

    申请日:2018-03-07

    Abstract: Process for the preparation of heterophasic propylene copolymer compositions (RAH ECO) comprising a random propylene copolymer (RACO) and an elastomeric propylene copolymer (BlPO), the process being carried out in a reactor having two interconnected polymerization zones, a riser and a down- comer, wherein the growing polymer particles: (a) flow through the first of said polymerization zones, the riser, under fast fluidization conditions in the presence of propylene and of ethylene and/or an alpha-olefin having from 4 to 10 carbon atoms, thus obtaining the random propylene copolymer (RACO); (b) leave the riser and enter the second of said polymerization zones, the downcomer, through which they flow downward in a densified form in the presence of propylene and of ethylene and/or an alpha-olefin having from 4 to 10 carbon atoms, wherein the concentration of ethylene and/or of the alpha-olefin in the downcomer is higher than in the riser, thus obtaining the elastomeric propylene copolymer (Bl PO); (c) leave the downcomer and are reintroduced into the riser, thus establishing a circulation of polymer between the riser and the downcomer.

    NUCLEATED PROPYLENE-BASED POLYOLEFIN COMPOSITIONS
    6.
    发明申请
    NUCLEATED PROPYLENE-BASED POLYOLEFIN COMPOSITIONS 审中-公开
    基于丙烯的聚烯烃组合物

    公开(公告)号:WO2014170070A1

    公开(公告)日:2014-10-23

    申请号:PCT/EP2014/054869

    申请日:2014-03-12

    Abstract: A polyolefin composition, particularly fit for the production of extrusion blow molded articles, comprising (a) a propylene-ethylene copolymer having a content of units deriving from ethylene of 4.0 % by weight or higher, and (b) a nucleating agent and having a crystallization temperature (Tc) higher than 117°C can be obtained by copolymerizing propylene and ethylene in the presence of a catalyst system obtained by contacting 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 selected from 1,3 diethers, an aluminum hydrocarbyl compound, and optionally an external electron donor compound.

    Abstract translation: 一种聚烯烃组合物,特别适用于生产挤出吹塑制品,其包含(a)乙烯衍生物的含量为4.0重量%以上的丙烯 - 乙烯共聚物,和(b)成核剂并具有 在通过使包含卤化镁的固体催化剂组分,至少具有Ti-卤素键的钛化合物的固体催化剂组分和在至少含有Ti-卤素键的钛化合物的存在下,将丙烯和乙烯共聚合,可以获得高于117℃的结晶温度(Tc) 至少两种电子给体化合物,其中一种以相对于供体总量为40至90摩尔%的量存在,并且选自琥珀酸盐,另一种选自1,3-二醚,铝烃基化合物和任选的 外电子给体化合物。

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    7.
    发明申请
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开
    油相的气相聚合方法

    公开(公告)号:WO2014044544A1

    公开(公告)日:2014-03-27

    申请号:PCT/EP2013/068375

    申请日:2013-09-05

    Abstract: A process and apparatus for producing olefin polymers are disclosed, comprising: a. polymerizing one or more olefins in the gas phase, in the presence of an olefin polymerization catalyst, whereby growing polymer particles flow along a cylindrically- shaped downward path in densified form under the action of gravity so as to form a densified bed of downward-flowing polymer particles b. allowing said polymer particles to flow through a restriction of the densified bed, such restriction being positioned in a restriction zone extending from the bed upward to a distance of 15% of the total height of the densified bed; and c. metering an antistatic agent through a feed line connected to the densified bed at a feed point being located in a feed zone extending from the top of the restriction upward, to a distance five times the diameter of the section of the densified bed above the restriction.

    Abstract translation: 公开了一种用于生产烯烃聚合物的方法和设备,包括:a。 在气相中在烯烃聚合催化剂存在下聚合一种或多种烯烃,由此生长的聚合物颗粒在致密化形式的重力作用下沿着圆柱形的向下路径流动,以形成向下流动的致密化床 聚合物颗粒b。 允许所述聚合物颗粒流过致密化床的限制,这种限制被定位在从床向上延伸到致密化床的总高度的15%的距离的限制区域中; 和c。 通过连接到致密化床的进料管,在位于从限制器顶部向上延伸的进料区中的进料点计量抗静电剂至限制物上方致密化床的部分直径的五倍。

    PROCESS FOR THE PREPARATION OF HETEROPHASIC PROPYLENE POLYMER COMPOSITIONS
    8.
    发明申请
    PROCESS FOR THE PREPARATION OF HETEROPHASIC PROPYLENE POLYMER COMPOSITIONS 审中-公开
    制备异构丙烯聚合物组合物的方法

    公开(公告)号:WO2013072225A1

    公开(公告)日:2013-05-23

    申请号:PCT/EP2012/071974

    申请日:2012-11-07

    Abstract: A processfor the preparation of propylene polymer compositions comprising from 50 to 90 % by weight of a propylene (co)polymer fraction insoluble in xylene at 25°C, and from 10 to 50% by weight of an ethylene copolymer fraction soluble in xylene at 25°C, said process comprising: (i)a first step of polymerizing propylene in the optional presence of ethylene and/or C 4 - C 10 alpha olefins, to produce a propylene (co)polymer being for at least 85% by weight insoluble in xylene at 25°C; and (ii)a successive step, carried out in gas-phase, in the presence of the product coming from step (i), of copolymerizing a mixture of ethylene with one or more α-olefins CH 2 =CHR in which R is a hydrocarbon radical having 1-10 carbon atoms, to produce an ethylene copolymer; the process being carried out in the presence of a catalyst system comprising: the product obtained by contacting: (a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two internal electron donor compounds one of which being present in an amount from 35 to 90% by mol with respect to the total amount of donors and being selected from succinates and the other being selected from 1,3-diethers, the total amount of internal electron donor compounds being lower than 14.0% by weight with respect to the total weight of the solid catalyst component; with (b) an aluminum hydrocarbyl compound, and optionally with (c) an external electron donor compound.

    Abstract translation: 一种制备丙烯聚合物组合物的方法,其包含50至90重量%的在25℃下不溶于二甲苯的丙烯(共)聚合物部分和10至50重量%在25℃下可溶于二甲苯的乙烯共聚物部分 ℃,所述方法包括:(i)在乙烯和/或C 4 -C 10α-烯烃的任选存在下聚合丙烯的第一步骤,以产生不溶于二甲苯的至少85重量%的丙烯(共)聚合物 在25°C; 和(ii)在来自步骤(i)的产物存在下,在气相中进行共聚合乙烯与一种或多种α-烯烃CH 2 = CHR的混合物的连续步骤,其中R是烃 具有1-10个碳原子的基团,以制备乙烯共聚物; 该方法在催化剂体系存在下进行,该催化剂体系包括:通过使(a)包含卤化镁的固体催化剂组分,至少具有Ti-卤素键的钛化合物和至少两个内部电子给体 其中一种相对于供体总量为35至90摩尔%,其中一种选自琥珀酸酯,另一种选自1,3-二醚,内给电子体化合物的总量为 相对于固体催化剂组分的总重量低于14.0重量% 与(b)铝烃基化合物,和任选与(c)外电子给体化合物。

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    9.
    发明申请
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 审中-公开
    油相的气相聚合方法

    公开(公告)号:WO2009080660A1

    公开(公告)日:2009-07-02

    申请号:PCT/EP2008/067772

    申请日:2008-12-17

    Abstract: A process for the gas-phase polymerization of α-olefms carried out in two interconnected polymerization zones, wherein the growing polymer particles flow through the first of said polymerization zones (riser) under fast fluidization conditions, leave said riser and enter the second of said polymerization zones (downcomer) through which they flow downward in a densified form, the process being characterized in that: (a) the gas mixture present in the riser is totally or partially prevented from entering the downcomer by introducing into the upper part of said downcomer a liquid stream LB having a composition different from the gaseous mixture present in the riser; (b) the ratio R between the flow rate F p of polymer circulated between said downcomer and said riser and the flow rate LB of said liquid being adjusted in a range from 10 to 50.

    Abstract translation: 一种用于在两个相互连接的聚合区中进行的α-烯烃的气相聚合的方法,其中生长的聚合物颗粒在快速流化条件下流过第一个所述聚合区(提升管),离开所述提升管并进入所述 聚合区(降液管),通过它们以致密化形式向下流动,该方法的特征在于:(a)通过引入所述降液管的上部,存在于提升管中的气体混合物被全部或部分地防止进入降液管 具有与提升管中存在的气体混合物不同的组成的液体流LB; (b)在所述降液管和所述提升管之间循环的聚合物的流量Fp与所述液体的流量LB之间的比R调节在10至50的范围内。

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