Process for Feeding a Catalyst in a Polymerization Reactor
    251.
    发明申请
    Process for Feeding a Catalyst in a Polymerization Reactor 有权
    在聚合反应器中加入催化剂的方法

    公开(公告)号:US20110282013A1

    公开(公告)日:2011-11-17

    申请号:US13142444

    申请日:2009-12-23

    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 C3-C12 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 C3-C12 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-烯烃的气体混合物进行聚合。

    Polypropylene composition
    252.
    发明授权
    Polypropylene composition 失效
    聚丙烯组成

    公开(公告)号:US08058350B2

    公开(公告)日:2011-11-15

    申请号:US10577270

    申请日:2004-11-03

    Abstract: A composition comprising: a) 50% to 90% of a propylene (co)polymer having: (i) a polydispersity index >3, (ii) melt flow rate >1 dg/min, and (iii) fraction soluble in xylene at 25° C. >1%, b) 5% to 25% of an ethylene/α-olefin copolymer having: (i) ethylene content over 50% but under 92% by mol, (ii) intrinsic viscosityover 1.2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, and (iv) enthalpy of fusion under 62 J/g; c) 5% to 25% of a propylene/ethylene copolymer having: (i) propylene content over 50% but under 92% by mol, (ii) intrinsic viscosity over 2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, (iv) product of reactivity ratios r1×r2 u nder 2, and (v) enthalpy of fusion under 45 J/g; wherein the weight ratio between component b and the sum of components b) and c) is 0.5 to 0.9.

    Abstract translation: 一种组合物,其包含:a)50%至90%的丙烯(共)聚合物,其具有:(i)多分散指数> 3,(ii)熔体流动速率> 1dg / min,和(iii)可溶于二甲苯的馏分 25℃> 1%,b)5%至25%的乙烯/α-烯烃共聚物,其具有:(i)乙烯含量超过50%但低于92摩尔%,(ii)特性粘度不超过1.2但低于6dL / g,(iii)密度范围为0.850〜0.890g / cm3,(iv)62J / g以下的熔融焓; c)5%至25%的丙烯/乙烯共聚物,其具有:(i)丙烯含量超过50%但低于92%摩尔,(ii)2以上的特性粘度但低于6dL / g,(iii) 0.850〜0.890g / cm3,(iv)反应性比r1×r2under2的产物,(v)45J / g以下的熔融焓; 其中组分b与组分b)和c)之和的重量比为0.5至0.9。

    Polymer Composition
    253.
    发明申请
    Polymer Composition 有权
    聚合物组成

    公开(公告)号:US20110269893A1

    公开(公告)日:2011-11-03

    申请号:US13143963

    申请日:2010-01-04

    Abstract: A polypropylene composition comprising:A) from 30% to 90% by weight of a propylene polymer composition comprising: a1) from 20% to 90% of a propylene homopolymer, or a copolymer of propylene containing 3% or less of derived units of ethylene or C4-C10 α-olefin(s) or of combinations thereof, said homopolymer or copolymer having a content of isotactic pentads (mmmm), measured by 13C NMR on the fraction insoluble in xylene at 25° C., higher than 96; a2) from 10% to 80%, of a copolymer of ethylene containing from 40% to 70% of derived units of propylene or C4-C10 α-olefin(s) or of combinations thereof; B) from 10% to 70% by weight of a multimodal ethylene copolymer wherein the comonomer is selected from the derived units of alpha olefins of formula CH2═CHT wherein T is a C3-C10 alkyl group; having the following properties: i) density (with ISO 1183) comprised in the range from 0.850 to 0.935 g/cm3; ii) total comonomer content ranging from 6% to 30% by weight; iii) content of 1-butene derived units ranging from 0 to 2% by weight; iv) Mw/Mn comprised from 4 to 20; v) intrinsic viscosity (decalin at 135° C. as determined according to EN IS0 1628-312003) comprised between 1.0 and 4.0 dL/g, and C) from 0 to 50% by weight; preferably from 0 to 20% of a filler.

    Abstract translation: 一种聚丙烯组合物,其包含:A)30重量%至90重量%的丙烯聚合物组合物,其包含:a1)20重量%至90重量%的丙烯均聚物,或含有3重量%或更少的衍生的乙烯单元的丙烯的共聚物 或C 4 -C 10α-烯烃或其组合,所述均聚物或共聚物的含量为全同立构五单元组(mmmm),通过13 C NMR测量在25℃下不溶于二甲苯的级分,高于96; a2)10%至80%的含有40%至70%的丙烯或C 4 -C 10α-烯烃的衍生单元或其组合的乙烯共聚物; B)10重量%至70重量%的多峰乙烯共聚物,其中共聚单体选自式CH2 = CHT的α-烯烃的衍生单元,其中T是C 3 -C 10烷基; 具有以下特性:i)密度(ISO 1183),范围为0.850-0.935g / cm3; ii)总共聚单体含量为6重量%至30重量%; iii)1-丁烯衍生单元的含量为0-2重量%; iv)Mw / Mn为4〜20; v)特性粘度(根据EN IS 1628-312003测定的135℃下的十氢化萘)为1.0-4.0dL / g,C)为0至50重量% 优选0至20%的填料。

    Polyolefin composition having a high balance of stiffness, impact strength and elongation at break and low thermal shrinkage
    254.
    发明授权
    Polyolefin composition having a high balance of stiffness, impact strength and elongation at break and low thermal shrinkage 有权
    具有高刚度,冲击强度和断裂伸长率以及低热收缩率的高分子量聚烯烃组合物

    公开(公告)号:US08039540B2

    公开(公告)日:2011-10-18

    申请号:US11628628

    申请日:2005-05-30

    Abstract: Polymer composition showing an improved balance of flexural modulus, IZOD impact strength and elongation at break comprising (percent by weight): A) a polymer blend comprising: A1) 50-70% of a crystalline propylene homopolymer or copolymer; and A2) 30-50% of one or more copolymer(s) of ethylene with one or more C4-C10 α-olefin(s) containing from 15 to 35% of said C4-C10 α-olefin(s); said polymer blend (A) having values of MFR equal to or higher than 10 g/10 min., a total content C4-C10 α-olefin(s) equal to or higher than 8% and an intrinsic viscosity value of the fraction soluble in xylene at room temperature of from 1.3 to 2 dl/g, the amounts of (A1) and (A2) being referred to the total weight of the polymer blend; and optionally B) 1-15% of an elastomeric polymer different from A2), having a hardness (Shore A, ASTM D-2240) value equal to or lower than 90 points; and/or C) 0.5-20% of a mineral filler; the amounts of optional components (B) and (C) being referred to the total weight of the composition.

    Abstract translation: 显示改善的弯曲模量,IZOD冲击强度和断裂伸长率平衡的聚合物组合物,其包含(重量%):A)包含:A1)50-70%的结晶丙烯均聚物或共聚物的聚合物共混物; 和A2)30-50%的一种或多种乙烯共聚物与一种或多种含有15至35%所述C 4 -C 10α-烯烃的C 4 -C 10α-烯烃; 所述聚合物共混物(A)具有等于或高于10g / 10分钟的MFR,等于或高于8%的总量的C 4 -C 10α-烯烃和可溶解的馏分的特性粘度值 在室温下的二甲苯为1.3-2dl / g,(A1)和(A2)的量是指聚合物共混物的总重量; 和任选的B)1-15%不同于A2)的弹性体聚合物,其硬度(肖氏A,ASTM D-2240)值等于或低于90分; 和/或C)0.5-20%的矿物填料; 任选组分(B)和(C)的量被称为组合物的总重量。

    Process for the continuous production of emulsions
    256.
    发明授权
    Process for the continuous production of emulsions 有权
    连续生产乳液的方法

    公开(公告)号:US07942572B2

    公开(公告)日:2011-05-17

    申请号:US10575751

    申请日:2004-09-30

    Abstract: A multistage process for the continuous production of an emulsion comprising subjecting at least two immiscible liquids to a sequence of at least two mixing stages carried out in at least two successive stator-rotor devices, wherein a peripheral outlet from a first stator-rotor device is connected to an axial inlet in the successive stator-rotor device by means of a duct in which the Reynold number ReT inside said duct is higher than 5000, and the peripheral velocity of each rotor of said stator-rotor devices ranges from 5 to 60 m/s.

    Abstract translation: 一种用于连续生产乳液的多级方法,包括使至少两种不混溶的液体经受至少两个连续的定子 - 转子装置中执行的至少两个混合阶段的序列,其中来自第一定子 - 转子装置的外围出口是 通过其中所述管道内的雷诺数ReT高于5000的管道连接到连续的定子 - 转子装置中的轴向入口,并且所述定子 - 转子装置的每个转子的圆周速度为5至60m / s。

    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS
    258.
    发明申请
    PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS 有权
    油相的气相聚合方法

    公开(公告)号:US20100317811A1

    公开(公告)日:2010-12-16

    申请号:US12735090

    申请日:2008-12-17

    Abstract: A process for the gas-phase polymerization of α-olefins 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 Fp 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。

    METHOD FOR CONTROLLING A SOLUTION PROCESS FOR THE POLYMERIZATION OF OLEFINS
    259.
    发明申请
    METHOD FOR CONTROLLING A SOLUTION PROCESS FOR THE POLYMERIZATION OF OLEFINS 失效
    用于控制烯烃聚合的溶液方法的方法

    公开(公告)号:US20100311921A1

    公开(公告)日:2010-12-09

    申请号:US12734406

    申请日:2008-10-20

    Abstract: A method for controlling a solution process for the polymerisation of olefins is disclosed. The method is based on an algorithm that calculates predicted operating parameters of the process, including calculation of the extent of reaction (ξ), as a function of the solution density (π), and then calculation of the whole composition of the solution. The algorithm resolves a system of equations comprising the equation of state in the PC-SAFT form, the Lewis-Mayo equation for monomer incorporation into a copolymer, and the stoichiometry equation. Predicted parameters are compared to target parameters to detect possible deviations and implement corresponding compensation in the feed.

    Abstract translation: 公开了一种用于控制烯烃聚合的溶液方法的方法。 该方法基于计算过程的预测操作参数的算法,包括计算反应程度(&xgr),作为溶液密度(&pgr)的函数,然后计算溶液的整体组成 。 该算法解决了包含PC-SAFT形式的状态方程,单体掺入共聚物的Lewis-Mayo方程式和化学计量方程式的方程组。 将预测参数与目标参数进行比较,以检测可能的偏差并在进料中实现相应的补偿。

    TSOFT AND FLEXIBLE POLYOLEFIN COMPOSITIONS
    260.
    发明申请
    TSOFT AND FLEXIBLE POLYOLEFIN COMPOSITIONS 有权
    TSOFT和柔性聚烯烃组合物

    公开(公告)号:US20100305276A1

    公开(公告)日:2010-12-02

    申请号:US12734849

    申请日:2008-12-09

    Abstract: A polyolefin composition having unusually low values of flexural modulus and shore hardness and comprising, in percent by weight: A) 15-40% of a copolymer of propylene with hexene-1 containing from 2.5 to 10% of hexene-1 and having Melt Flow Rate (MFR, measured according to ISO 1133, 230° C./2.16 Kg) from 0.5 to 100 g/10 min.; and B) 60-85% of an ethylene copolymer containing ethylene in a quantity equal to or lower than 40%, and having solubility in xylene at room temperature greater than 70%.

    Abstract translation: 具有非常低的弯曲模量和肖氏硬度值的聚烯烃组合物,其包含以重量百分比计:A)丙烯与含有2.5至10%己烯-1并具有熔体流动的己烯-1的共聚物的15-40% 速率(MFR,根据ISO 1133测定,230℃/ 2.16Kg)为0.5〜100g / 10分钟。 和B)含有等于或低于40%乙烯的乙烯共聚物的60-85%,并且在室温下在二甲苯中的溶解度大于70%。

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