Olefin polymerization process
    1.
    发明授权
    Olefin polymerization process 有权
    烯烃聚合工艺

    公开(公告)号:US07122606B2

    公开(公告)日:2006-10-17

    申请号:US10563497

    申请日:2004-06-29

    IPC分类号: C08F2/38

    摘要: A process for polymerizing one or more alpha-olefins of formula CH2═CHT wherein T is a hydrogen atom or a C1–C20 alkyl radical comprising the following steps: a) contacting in a continuous way one or more of said alpha olefins with a metallocene based catalyst system in a loop reactor, wherein: (i) the reaction is carried out in a liquid medium; (ii) the average residence time of the metallocene-based catalyst system is not more than 30 minutes; (iii) the temperature of the loop ranges from 25° to 70° C.; in order to obtain a polymerization degree ranging from 60 to 500 g per gram of catalyst system; b) feeding in continuous the prepolymerized metallocene-based catalyst system obtained in step a) into a polymerization reactor C) polymerizing one or more alpha-olefins, the same or different from the alpha olefins used in step a), in the presence of said prepolymerized metallocene-based catalyst system.

    摘要翻译: 用于聚合一种或多种式CH 2 -CHT的α-烯烃的方法,其中T是氢原子或C 1 -C 20 - 烷基,其包括以下步骤:a)在环流反应器中以连续方式使一种或多种所述α-烯烃与茂金属基催化剂体系接触,其中:(i)反应在液体介质中进行; (ii)金属茂系催化剂体系的平均停留时间不超过30分钟; (iii)环路温度为25°至70°C; 以获得每克催化剂体系60至500g的聚合度; b)将在步骤a)中获得的预聚合的茂金属基催化剂体系连续进料到聚合反应器中C)使所述α-烯烃在所述 预聚金属茂系催化剂体系。

    Supported metal alkyl compound and process for the polymerization of olefins in its presence
    2.
    发明授权
    Supported metal alkyl compound and process for the polymerization of olefins in its presence 失效
    负载型金属烷基化合物及其存在下烯烃聚合方法

    公开(公告)号:US07683146B2

    公开(公告)日:2010-03-23

    申请号:US12225970

    申请日:2007-04-23

    IPC分类号: C08F4/44

    摘要: The present invention relates to pulverulent solids obtainable by reaction of a metal alkyl compound of a divalent or higher-valent metal and a finely divided support which on its surface bears functional groups which can form a chemical bond between the metal atom of the metal alkyl compound and the surface of the support, wherein the particles of the finely divided support have particle diameters of less than 1000 nm and less than 5% by weight of the metal alkyl compound is extractable in a single extraction of the pulverulent solid with 20 ml of heptane per gram of solid at 50° C. In addition, the invention relates to a process for preparing the pulverulent solids, a catalyst composition for the polymerization of olefins which comprises the pulverulent solids and polymerization processes using the catalyst composition.

    摘要翻译: 本发明涉及通过二价或更高价金属的金属烷基化合物和细分散的载体的反应获得的粉状固体,其表面具有可在金属烷基化合物的金属原子之间形成化学键的官能团 和支撑体的表面,其中细分散载体的颗粒具有小于1000nm且小于金属烷基化合物重量的小于5重量%的颗粒可以在用20ml庚烷的单次提取粉状固体中提取 在50℃下每克固体。此外,本发明涉及制备粉状固体的方法,用于烯烃聚合的催化剂组合物,其包含粉状固体和使用该催化剂组合物的聚合方法。

    Supported Metal Alkyl Compound and Process for the Polymerization of Olefins in Its Presence
    3.
    发明申请
    Supported Metal Alkyl Compound and Process for the Polymerization of Olefins in Its Presence 失效
    负载型金属烷基化合物及其存在下烯烃聚合方法

    公开(公告)号:US20090124770A1

    公开(公告)日:2009-05-14

    申请号:US12225970

    申请日:2007-04-23

    IPC分类号: C08F4/52 C07F7/02 B01J31/14

    摘要: The present invention relates to pulverulent solids obtainable by reaction of a metal alkyl compound of a divalent or higher-valent metal and a finely divided support which on its surface bears functional groups which can form a chemical bond between the metal atom of the metal alkyl compound and the surface of the support, wherein the particles of the finely divided support have particle diameters of less than 1000 nm and less than 5% by weight of the metal alkyl compound is extractable in a single extraction of the pulverulent solid with 20 ml of heptane per gram of solid at 50° C. In addition, the invention relates to a process for preparing the pulverulent solids, a catalyst composition for the polymerization of olefins which comprises the pulverulent solids and polymerization processes using the catalyst composition.

    摘要翻译: 本发明涉及通过二价或更高价金属的金属烷基化合物和细分散的载体的反应获得的粉状固体,其表面具有可在金属烷基化合物的金属原子之间形成化学键的官能团 和支撑体的表面,其中细分散载体的颗粒具有小于1000nm且小于金属烷基化合物重量的小于5重量%的颗粒可以在用20ml庚烷的单次提取粉状固体中提取 在50℃下每克固体。此外,本发明涉及制备粉状固体的方法,用于烯烃聚合的催化剂组合物,其包含粉状固体和使用该催化剂组合物的聚合方法。

    1-butene propylene copolymer compositions
    6.
    发明授权
    1-butene propylene copolymer compositions 有权
    1-丁烯丙烯共聚物组合物

    公开(公告)号:US08097681B2

    公开(公告)日:2012-01-17

    申请号:US12310508

    申请日:2007-08-22

    IPC分类号: C08L23/20 C08F210/08

    摘要: A 1-butene/propylene copolymer composition having a content of propylene derived units from 1 to 4% by weight, wherein at least 50% of the crystalline polymer is present in the thermodynamically stable, trigonal Form I (detected by DSC analysis) after 100 hours of the first melting at room temperature comprising: b) from 5% by weight to 95% by weight of an atactic 1-butene propylene copolymer having the following features: i) distribution of molecular weight Mw/Mn equal to or lower than 4; ii) no enthalpy of fusion detectable at a differential scanning calorimeter (DSC); and iii) infrared crystallinity lower than 0.5%; b) from 5% by weight to 95% by weight of an isotactic 1-butene propylene copolymer having the following features: i) isotactic pentads (mmmm) measured by 13C-NMR, higher than 80%; ii) melting point (Tm(II)) higher than 70° C.; and iii) distribution of molecular weight Mw/Mn equal to or lower than 4.

    摘要翻译: 具有1至4重量%的丙烯衍生单元含量的1-丁烯/丙烯共聚物组合物,其中至少50%的结晶聚合物存在于热力学稳定的三角形式I(通过DSC分析检测)后100 包括:b)5重量%至95重量%的具有以下特征的无规立构1-丁烯丙烯共聚物:i)分子量Mw / Mn等于或低于4的分布 ; ii)在差示扫描量热计(DSC)处不可检测到融合焓; 和iii)红外结晶度低于0.5%; b)5重量%至95重量%的具有以下特征的全同立构1-丁烯丙烯共聚物:i)通过13 C-NMR测量的全同立构五单元组(mmmm)高于80%; ii)高于70℃的熔点(Tm(II))。 和iii)等于或低于4的分子量Mw / Mn的分布。

    Process for producing fractionable 1-butene polymers
    9.
    发明授权
    Process for producing fractionable 1-butene polymers 失效
    生产可分级的1-丁烯聚合物的方法

    公开(公告)号:US07776978B2

    公开(公告)日:2010-08-17

    申请号:US11632612

    申请日:2005-06-10

    摘要: A process for producing a 1-butene polymer comprising the step of polymerizing 1-butene in the presence of a catalyst system obtainable by contacting: b) at least a metallocene compound of formula (Ia) in the meso or meso-like form: wherein M is an atom of a transition metal p is an integer from 0 to 3, X, same or different, is a hydrogen atom, a halogen atom, or a hydrocarbon group. L is a divalent C1-C40 hydrocarbon radical R1 and R2, equal to or different from each other, are C1-C40 hydrocarbon radicals; T, equal to or different from each other, is a moiety of formula (IIa), (IIb) or (IIc): wherein R3 and R5 are a C1-C40 hydrocarbon radical; R4 and R6, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon radicals and R7 and R8, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon radicals b) at least a metallocene compound of formula (Ib) in the racemic (rac) or racemic-like form c) an alumoxane or a compound capable of forming an alkyl metallocene cation.

    摘要翻译: 一种制备1-丁烯聚合物的方法,包括在催化剂体系存在下聚合1-丁烯的步骤,所述催化剂体系可通过以下步骤获得:b)至少一种中内消旋或内消旋形式的式(Ia)金属茂化合物:其中 M为过渡金属的原子,p为0〜3的整数,X相同或不同,为氢原子,卤素原子或烃基。 L是二价C1-C40烃基R1和R2彼此相同或不同的是C1-C40烃基; T为相同或不同的式(IIa),(IIb)或(IIc)的部分:其中R3和R5为C1-C40烃基; R 4和R 6彼此相同或不同,为氢原子或C 1 -C 40烃基,R 7和R 8彼此相同或不同,为氢原子或C 1 -C 40烃基b)至少金属茂化合物 式(Ib)的外消旋(rac)或外消旋形式的c)铝氧烷或能够形成烷基金属茂阳离子的化合物。

    1-butene polymer and process for the preparation thereof
    10.
    发明授权
    1-butene polymer and process for the preparation thereof 有权
    1-丁烯聚合物及其制备方法

    公开(公告)号:US07534841B2

    公开(公告)日:2009-05-19

    申请号:US11665821

    申请日:2005-09-29

    IPC分类号: C08F4/64 C08F4/76 C08F210/08

    摘要: A 1-butene polymer optionally containing from 0 to 30% by mol of derived units of ethylene, propylene or alpha-olefin of formula CH2═CHZ, wherein Z is a C3-C20 linear or branched alkyl radical, having the following features: a) distribution of molecular weight (Mw/Mn) lower than 4; b) Melt flow rate (MFR) measured according to ISO 1133 (190° C., 2.16 kg); c) Intrinsic viscosity (IV) measured in tetrahydronaftalene (THN) at 135° C. lower than 0.8 dl/g; d) melting point higher than 100° C.; e) isotactic pentads (mmmm) measured with 13C-NMR operating at 100.61 MHz higher than 90%; f) 4,1 insertions not detectable at a C13-NMR operating at 100.61 MHz; and g) a yellowness index lower than 0.

    摘要翻译: 任选地含有0至30摩尔%的乙烯,丙烯或式CH 2 -CHZ的α-烯烃的衍生单元的1-丁烯聚合物,其中Z为C 3 -C 20直链或支链烷基,具有以下特征:a )分子量(Mw / Mn)低于4的分布; b)根据ISO 1133(190℃,2.16kg)测量的熔体流动速率(MFR); c)在135℃下在四氢萘甲酸(THN)中测得的特性粘度(IV)低于0.8dl / g; d)熔点高于100℃。 e)使用13 C-NMR测量的100.61MHz高于90%的全同立构五单元组(mmmm); f)在100.61MHz的C 13-NMR下不能检测到4,1个插入; 和g)黄色指数低于0。