Nmr Method of Determining and Regulating the Composition of Polymer Mixtures in Polymerization
    1.
    发明申请
    Nmr Method of Determining and Regulating the Composition of Polymer Mixtures in Polymerization 有权
    确定和调节聚合物中聚合物混合物组成的方法

    公开(公告)号:US20080200622A1

    公开(公告)日:2008-08-21

    申请号:US11629542

    申请日:2005-06-09

    IPC分类号: C08F2/00 G01R33/44 G01N24/08

    摘要: Method of determining the composition of polymer mixtures comprising defined polymer components of differing mean molar masses Mn, which comprises the steps (a) recording of at least one 1H-NMR relaxation curve of the polymer mixture and (b) calculating the proportions of the polymer components by matching the measured relaxation curve with the relaxation curves of the individual polymer components. In this way, the composition of polymer mixtures can be determined quickly and simply. Furthermore, process integration for regulating the polymerization is possible.

    摘要翻译: 确定包含不同平均摩尔质量M N的定义的聚合物组分的聚合物混合物的组成的方法,其包括步骤(a)记录至少一个1 H-NMR 聚合物混合物的松弛曲线和(b)通过将测量的松弛曲线与各个聚合物组分的松弛曲线相匹配来计算聚合物组分的比例。 以这种方式,可以快速且简单地确定聚合物混合物的组成。 此外,用于调节聚合的方法集成是可能的。

    NMR method of determining and regulating the composition of polymer mixtures in polymerization
    2.
    发明授权
    NMR method of determining and regulating the composition of polymer mixtures in polymerization 有权
    确定和调节聚合物中聚合物混合物组成的NMR方法

    公开(公告)号:US07737230B2

    公开(公告)日:2010-06-15

    申请号:US11629542

    申请日:2005-06-09

    IPC分类号: C08F2/00 C08F210/00

    摘要: Method of determining the composition of polymer mixtures comprising defined polymer components of differing mean molar masses Mn, which comprises the steps (a) recording of at least one 1H-NMR relaxation curve of the polymer mixture and (b) calculating the proportions of the polymer components by matching the measured relaxation curve with the relaxation curves of the individual polymer components. In this way, the composition of polymer mixtures can be determined quickly and simply. Furthermore, process integration for regulating the polymerization is possible.

    摘要翻译: 确定包含不同平均摩尔质量Mn的限定的聚合物组分的聚合物混合物的组成的方法,其包括步骤(a)记录聚合物混合物的至少一个1H-NMR松弛曲线,和(b)计算聚合物的比例 通过将测量的松弛曲线与各个聚合物组分的松弛曲线相匹配来获得组分。 以这种方式,可以快速且简单地确定聚合物混合物的组成。 此外,用于调节聚合的方法集成是可能的。

    Polymerization catalyst used for producing polyolefins that have excellent combined properties
    3.
    发明授权
    Polymerization catalyst used for producing polyolefins that have excellent combined properties 有权
    用于生产具有优异组合性能的聚烯烃的聚合催化剂

    公开(公告)号:US06897181B2

    公开(公告)日:2005-05-24

    申请号:US10276618

    申请日:2001-05-14

    CPC分类号: C08F10/02 C08F4/24

    摘要: The invention relates to a process for preparing a catalyst for the polymerization of olefins, which comprises: a) preparation of a finely divided silica xerogel, b) loading of the xerogel with chromium from a solution of chromium trioxide or a chromium compound which is converted into chromium trioxide under the conditions of step c), and c) activation of the resulting product at from 400 to 1100° C. in a water-free gas stream comprising oxygen in a concentration of above 10% by volume, wherein a fluoride doping with a fluorinating agent is carried out in step b) or in step c). Furthermore, the invention relates to a catalyst for the polymerization of olefins which is obtainable by the process of the invention and to a process for the polymerization of olefins in which an olefin or an olefin mixture is polymerized in the presence of a catalyst according to the invention.

    摘要翻译: 本发明涉及一种制备烯烃聚合催化剂的方法,该方法包括:a)制备细碎的二氧化硅干凝胶,b)用铬从三氧化铬溶液或铬化合物的溶液中加载干凝胶, 在步骤c)的条件下转化为三氧化铬,和c)在含有浓度高于10体积%的氧的无水气流中,在400至1100℃下活化所得产物,其中氟化物掺杂 在步骤b)或步骤c)中进行氟化剂。 此外,本发明涉及可通过本发明的方法获得的烯烃聚合催化剂和烯烃聚合方法,其中烯烃或烯烃混合物在催化剂存在下聚合,根据 发明。

    Polymerization catalyst used for producing polyolefins that have excellent combined properties
    4.
    再颁专利
    Polymerization catalyst used for producing polyolefins that have excellent combined properties 有权
    用于生产具有优异组合性能的聚烯烃的聚合催化剂

    公开(公告)号:USRE40140E1

    公开(公告)日:2008-03-04

    申请号:US11541519

    申请日:2001-05-14

    CPC分类号: C08F10/02 C08F4/24

    摘要: The invention relates to a process for preparing a catalyst for the polymerization of olefins, which comprises: a) preparation of a finely divided silica xerogel, b) loading of the xerogel with chromium from a solution of chromium trioxide or a chromium compound which is converted into chromium trioxide under the conditions of step c), and c) activation of the resulting product at from 400 to 1100° C. in a water-free gas stream comprising oxygen in a concentration of above 10% by volume, wherein a fluoride doping with a fluorinating agent is carried out in step b) or in step c). Furthermore, the invention relates to a catalyst for the polymerization of olefins which is obtainable by the process of the invention and to a process for the polymerization of olefins in which an olefin or an olefin mixture is polymerized in the presence of a catalyst according to the invention.

    摘要翻译: 本发明涉及一种制备烯烃聚合催化剂的方法,该方法包括:a)制备细碎的二氧化硅干凝胶,b)用铬从三氧化铬溶液或铬化合物的溶液中加载干凝胶, 在步骤c)的条件下转化为三氧化铬,和c)在含有浓度高于10体积%的氧的无水气流中,在400至1100℃下活化所得产物,其中氟化物掺杂 在步骤b)或步骤c)中进行氟化剂。 此外,本发明涉及可通过本发明的方法获得的烯烃聚合催化剂和烯烃聚合方法,其中烯烃或烯烃混合物在催化剂存在下聚合,根据 发明。

    Preparation of supported catalysts for polymerization
    6.
    发明申请
    Preparation of supported catalysts for polymerization 审中-公开
    负载聚合催化剂的制备

    公开(公告)号:US20070179051A1

    公开(公告)日:2007-08-02

    申请号:US10588391

    申请日:2005-02-02

    IPC分类号: C08F2/00 B01J23/00

    摘要: The invention relates to a process for preparing a supported catalyst, in particular for the polymerization and/or copolymerization of olefins, which comprises: a) preparing a hydrogel; b) milling the hydrogel to give a finely particulate hydrogel; c) producing a slurry based on the finely particulate hydrogel; d) drying the slurry comprising the finely particulate hydrogel to give the support for catalysts; e) producing the supported catalyst by applying at least one transition metal and/or at least one transition metal compound to the support for catalysts and, if appropriate, activating the applied metal and/or compound, wherein a finely particulate hydrogel in which at least 5% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦3 μm; and/or at least 40% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦12 μm, and/or at least 75% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦35 μm, is produced in step b) and a support which can be prepared as set forth in steps a) to d) is used to produce catalysts in step e).

    摘要翻译: 本发明涉及一种制备负载型催化剂的方法,特别是用于烯烃的聚合和/或共聚合,其包括:a)制备水凝胶; b)研磨水凝胶以得到细颗粒水凝胶; c)基于细颗粒水凝胶生产浆料; d)干燥包含细颗粒状水凝胶的浆料,得到催化剂载体; e)通过将至少一种过渡金属和/或至少一种过渡金属化合物施加到催化剂的载体上,并且如果合适地活化所施加的金属和/或化合物,制备负载型催化剂,其中至少 基于颗粒的总体积,5体积%的颗粒具有在>0μm至<3μm的范围内的粒度; 和/或至少40体积%的颗粒,基于颗粒的总体积,其粒度范围为>0μm至≤12μm,和/或至少75体积% 基于颗粒的总体积的颗粒具有在>0μm至<=35μm的范围内的粒度,在步骤b)中制备,并且可以如步骤a)至d所述制备的载体 )用于在步骤e)中制备催化剂。

    Polymerisates of ethylene with a high degree of resistance to stress crack, and a catalyst system for the production thereof
    9.
    发明授权
    Polymerisates of ethylene with a high degree of resistance to stress crack, and a catalyst system for the production thereof 失效
    具有高抗应力裂纹性的乙烯的聚合物,以及用于制备它的催化剂体系

    公开(公告)号:US06180731B2

    公开(公告)日:2001-01-30

    申请号:US09000011

    申请日:1997-01-22

    IPC分类号: C08F442

    摘要: Polymers of ethylene are obtainable by polymerization of ethylene and, if desired, further comonomers in the presence of a catalyst system comprising as active constituents I) a Phillips catalyst, II) a solid which is different from I) and comprises a component which is derived from the metallocene complexes of the formula (A) in which the substituents and indices have the following meanings:  R1 to R10 are hydrogen, C1-C10-alkyl, 5-to 7-membered cycloalkyl which may in turn bear C1-C6-alkyl groups as substituents, C6-C15-aryl or aryalkyl, where two adjacent radicals may also together form a cyclic group having from 4 to 15 carbon atoms, or Si(R11)3, where R11 is C1-C10-alkyl, C6-C15-aryl or C3-C10-cycloalkyl, or the radicals R4 and R9 together form a group —[Y(R12R13)]m—, where Y is silicon, germanium, tin or carbon, and R12, R13 are hydrogen C1-C10-alky, C3-C10-cycloalyl or C6-C15-aryl, M is a metal of transition groups IV to VIII or a metal of the lanthanide series, Z1, Z2 are fluorine, chlorine, bromine, iodine, hydrogen, C1-C20-alkyl or aryl, —OR14, —OOCR14,  where R14 is hydrogen or C1-C20-alkyl; R15 is C1-C20-alkyl; m is 1,2,3 or 4; n is 0, or 2; r is 0, 1 or 2; the sum n+r is likewise 0, 1 or 2, and, if desired, III) an organometallic component selected from groups IA, IIA, IIB and IIIA of the Periodic Table of the Elements.

    摘要翻译: 乙烯的聚合物可以通过在包含作为活性成分的催化剂体系的存在下乙烯和如果需要的情况下进一步的共聚单体获得。I)菲利普斯催化剂,II)与I)不同的固体,并且包含衍生自 式(A)的金属茂络合物,其中取代基和指数具有以下含义:R 1至R 10是氢,C 1 -C 10 - 烷基,5-至7-元环烷基,其也可以含有C 1 -C 6 - 烷基 作为取代基,其中两个相邻基团也可以一起形成具有4至15个碳原子的环状基团的C 6 -C 15 - 芳基或芳烷基,或其中R 11是C 1 -C 10 - 烷基,C 6 -C 15 - 芳基或C 3 -C 10 - 环烷基,或基团R 4和R 9一起形成 - [Y(R 12 R 13)] m - 基团,其中Y是硅,锗,锡或碳,R 12,R 13是氢C1-C10-烷基 C 3 -C 10 - 环烷基或C 6 -C 15 - 芳基,M为Ⅳ〜Ⅷ族金属或镧系金属,Z 1,Z 2为氟, 氯,溴,碘,氢,C 1 -C 20烷基或芳基,-OR 14,-OOCR 14,其中R 14是氢或C 1 -C 20烷基; R 15是C 1 -C 20 - 烷基; m为1,2,3或4; n为0或2; r为0,1或2; 总和n + r同样为0,1或2,如果需要,III)选自元素周期表的IA,IIA,IIB和IIIA族的有机金属组分。