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696 条记录 (耗时 0.03 秒)

    Process for the copolymerization of ethylene
    81.
    发明授权
    Process for the copolymerization of ethylene 失效
    乙烯共聚方法

    公开(公告)号：US07615597B2

    公开(公告)日：2009-11-10

    申请号：US10526656

    申请日：2003-08-19

    申请人： Luigi Resconi ,  Anna Fait ,  Nicoletta Mascellani

    发明人： Luigi Resconi ,  Anna Fait ,  Nicoletta Mascellani

    IPC分类号： C08F4/76 ,  C08F4/64 ,  C07F17/00

    CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  Y10S526/901 ,  Y10S526/941 ,  Y10S526/943 ,  C08F4/65927 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2500/20

    摘要： A process for producing a polymer of ethylene containing from 0.1 to 99% by mol of one or more derived units of alpha-olefins and optionally from 0 to 5% by mol polyene, comprising contacting ethylene, one or more alpha-olefins and optionally said polyene, in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I): wherein M is zirconium, hafnium or titanium; X, is a hydrogen atom, a halogen atom, or a hydrocarbon group; R1 is a hydrocarbon group; R2, R3, R4 and R5 are hydrogen atoms, or hydrocarbon groups; R6 is a hydrocarbon group; L is a divalent bridging group, and T is a divalent radical of formula (II) or (III): wherein R8 and R9 are hydrogen or hydrocarbon groups; and b) an alumoxane or a compound capable of forming an alkyl metallocene cation.

    摘要翻译： 一种制备乙烯聚合物的方法，该聚合物含有0.1-99％（摩尔）一种或多种衍生的α-烯烃单元和任选的0-5％（摩尔）多烯，包括使乙烯，一种或多种α-烯烃和任选地所述 多烯，在可通过使a）金属茂化合物（I）表示的催化剂体系存在下，其中M是锆，铪或钛; X是氢原子，卤素原子或烃基; R1是烃基; R2，R3，R4和R5是氢原子或烃基; R6是烃基; L是二价桥基，T是式（II）或（III）的二价基团：其中R8和R9是氢或烃基; 和b）铝氧烷或能够形成烷基茂金属阳离子的化合物。

    Process for Preparing Olff in Polymers in the Presence of Catalyst Systems Having Photochromic Groups
    82.
    发明申请
    Process for Preparing Olff in Polymers in the Presence of Catalyst Systems Having Photochromic Groups 审中-公开
    在具有光致变色基团的催化剂体系存在下，在聚合物中制备Olff的方法

    公开(公告)号：US20090227748A1

    公开(公告)日：2009-09-10

    申请号：US11991585

    申请日：2006-08-31

    申请人： Robert Larry Jones

    发明人： Robert Larry Jones

    IPC分类号： C08F4/42 ,  C08F10/00 ,  C08F2/00 ,  C07F5/00 ,  C07F7/00 ,  C07F9/00 ,  C07F11/00 ,  C07F15/02 ,  C07F15/04 ,  C07D333/50 ,  C07F15/06 ,  C07F7/28

    CPC分类号： C07F17/00 ,  C08F4/65912 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F10/00 ,  C08F110/06 ,  C08F210/16 ,  C08F4/65922 ,  C08F2/48 ,  C08F2/06 ,  C08F210/14 ,  C08F2500/20 ,  C08F2500/17 ,  C08F2500/08 ,  C08F2500/10 ,  C08F2500/04

    摘要： The present invention relates to a process for preparing olefin polymers by polymerization or copolymerization of at least one olefin of the formula Ra—CH═CH—Rb, where Ra and Rb are identical or different and are each a hydrogen atom or a hydrocarbon radical having from 1 to 20 carbon atoms, or Ra and Rb together with the atoms connecting them can form a ring, at a temperature of from −60 to 200° C. and a pressure of from 0.5 to 100 bar, in solution, in suspension or in the gas phase in the presence of a catalyst system comprising one or more catalyst constituents, wherein the catalyst system comprises at least one photochromic group in one of the catalyst constituents, the corresponding catalyst systems, a process for preparing the catalyst systems of the invention, specific transition metal coordination compounds having photochromic groups, specific cyclopentadienyl derivatives and precursors thereof, in each case comprising a specific photochromic group, the use of the catalyst systems of the invention for the polymerization of olefins, the use of specific transition metal coordination compounds for preparing polymerization catalysts and polyolefins obtainable by the polymerization process of the invention.

    摘要翻译： 本发明涉及通过聚合或共聚至少一种式Ra-CH-CH-Rb的烯烃制备烯烃聚合物的方法，其中Ra和Rb相同或不同并且各自为氢原子或具有 1至20个碳原子，或者R a和R b与连接它们的原子一起可以在-60至200℃的温度和0.5至100巴的压力下在溶液中悬浮或悬浮形成环 在包含一种或多种催化剂组分的催化剂体系存在下的气相中，其中所述催化剂体系在催化剂组分之一中包含至少一个光致变色基团，相应的催化剂体系，本发明的催化剂体系的制备方法 ，具有光致变色基团的具体的过渡金属配位化合物，特定的环戊二烯基衍生物及其前体，每种情况包括特定的光致变色基团，使用催化剂体系 本发明用于烯烃聚合的方法，使用特定的过渡金属配位化合物制备聚合催化剂和通过本发明的聚合方法获得的聚烯烃。

    Polypropylene for Injection Molding
    84.
    发明申请
    Polypropylene for Injection Molding 有权
    注塑用聚丙烯

    公开(公告)号：US20090137739A1

    公开(公告)日：2009-05-28

    申请号：US12083793

    申请日：2006-10-12

    申请人： Alexander Fuchs ,  Bernd Schuetz

    发明人： Alexander Fuchs ,  Bernd Schuetz

    IPC分类号： C08L23/12 ,  C08F110/06

    CPC分类号： C08L23/10 ,  C08L2205/02 ,  C08L2666/06

    摘要： A polypropylene resin comprising a propylene polymer having the following features: a) melt flow rate (MFR) (ISO 1133) (230° C./2.16 kg) comprised between 120 g/10′ and 400 g/10′; b) distribution of molecular weight Mw/Mn lower than 4; c) haze measured according to ASTM D 1003 comprised between 5% and 30%; and d) flexural modulus measured according ISO 178 after 48 h comprised between 1750 N/m2 and 2300 N/m2.

    摘要翻译： 包含具有以下特征的丙烯聚合物的聚丙烯树脂：a）包含在120g / 10'和400g / 10'之间的熔体流动速率（MFR）（ISO 1133）（230℃/ 2.16kg）; b）分子量Mw / Mn低于4的分布; c）根据ASTM D 1003测量的雾度为5％至30％; 和d）在48小时后根据ISO 178测量的挠曲模量包括在1750N / m 2和2300N / m 2之间。

    Discontinuous metering of catalysts and process auxilliaries into a gas-phase fluidized-bed reactor
    85.
    发明授权
    Discontinuous metering of catalysts and process auxilliaries into a gas-phase fluidized-bed reactor 失效
    催化剂和工艺助剂不连续计量进入气相流化床反应器

    公开(公告)号：US07534341B2

    公开(公告)日：2009-05-19

    申请号：US10552853

    申请日：2004-04-15

    申请人： Rainer Karer ,  Kaspar Evertz ,  Peter Kölle ,  Hans-Jacob Feindt

    发明人： Rainer Karer ,  Kaspar Evertz ,  Peter Kölle ,  Hans-Jacob Feindt

    IPC分类号： C10G35/00 ,  C10G35/10

    CPC分类号： B01J4/002 ,  B01J4/007 ,  B01J4/02 ,  B01J8/0035 ,  B01J8/004 ,  B01J8/1872 ,  B01J2208/00752 ,  C08F10/00 ,  C08F110/02 ,  C08F210/16 ,  C08F2/00 ,  C08F2/01 ,  C08F2/34 ,  C08F2500/07 ,  C08F2500/12

    摘要： Method of metering at least one solid, particulate catalyst into a reactor containing a fluidized bed (11) of particles in an at least partly gaseous medium, in which the catalyst is metered discontinuously at prescribed time intervals into the fluidized bed (11) at at least one metering point (10). According to the present invention, a fluid stream is firstly introduced into the reactor (5) so that a region having a reduced particle density is formed in the fluidized bed (11) around the metering point (10) and the catalyst is subsequently metered into this region. As a result of the prior introduction of a fluid stream (“preblowing”) before the actual introduction of the catalyst, the catalyst can penetrate significantly deeper into the fluidized bed from the metering point due to the reduced particle density and is dispersed better.

    摘要翻译： 将至少一种固体颗粒催化剂计量到含有至少部分气体介质中的颗粒流化床（11）的反应器的方法，其中催化剂以规定的时间间隔不连续地计量加入流化床（11）中 至少一个计量点（10）。 根据本发明，首先将流体流引入反应器（5），使得在流化床（11）周围形成具有减小的颗粒密度的区域，并将催化剂随后计量加入 这个地区。 由于在实际引入催化剂之前先前引入流体物流（“预吹扫”），由于颗粒密度降低，催化剂可以从计量点深入到流化床中，并且分散得更好。

    Synthesis of Cyclopentadienedithiophene Derivatives
    86.
    发明申请
    Synthesis of Cyclopentadienedithiophene Derivatives 审中-公开
    环戊二烯二噻吩衍生物的合成

    公开(公告)号：US20090118522A1

    公开(公告)日：2009-05-07

    申请号：US11992033

    申请日：2006-09-15

    申请人： Simona Guidotti

    发明人： Simona Guidotti

    IPC分类号： C07D495/04

    CPC分类号： C07D495/04

    摘要： A process for preparing cyclopentadiene derivatives having formula (I) wherein T1 is selected from the group consisting of oxygen (O), or sulphur (S); R1, R2, R3 and R4, are hydrogen atoms, or hydrocarbon radicals; comprising the following steps: a) reacting a compound of formula (II) with a compound of formula (III) in the presence of a palladium or nickel based catalyst and a base; b) contacting the obtained compound with a carbonylating system; and c) treating the product obtained in step b) with a reducing agent.

    摘要翻译： 一种制备式（I）的环戊二烯衍生物的方法，其中T1选自氧（O）或硫（S）; R1，R2，R3和R4是氢原子或烃基; 包括以下步骤：a）在钯或镍基催化剂和碱的存在下使式（II）化合物与式（III）化合物反应; b）使所得化合物与羰基化体系接触; 和c）用还原剂处理步骤b）中获得的产物。

    1-Butene Polymers Composition
    90.
    发明申请
    1-Butene Polymers Composition 有权
    1-丁烯聚合物组合物

    公开(公告)号：US20080319135A1

    公开(公告)日：2008-12-25

    申请号：US11632616

    申请日：2005-06-10

    申请人： Luigi Resconi ,  Anteo Pelliconi ,  Stefano Spataro ,  Gilberto Moscardi

    发明人： Luigi Resconi ,  Anteo Pelliconi ,  Stefano Spataro ,  Gilberto Moscardi

    IPC分类号： C08L23/00 ,  C08L23/04 ,  C08L23/10

    CPC分类号： C08L23/18 ,  C08L23/20 ,  C08L2205/02 ,  Y10S526/943 ,  C08L2666/04

    摘要： A 1-butene polymer composition comprising: a) from 5% by weight to 95% by weight of an atactic 1-butene-based polymer, having the following features: distribution of molecular weight Mw/Mn equal to or lower than 4; rr triads, measured by 13C-NMR comprised between 5% and 50%; no enthalpy of fusion detectable at a differential scanning calorimeter (DSC); intrinsic viscosity (IV) measured in tetrahydronaphtalene (THN) at 135° C. comprised between 0.85 dl/g and 5.0 dl/g; and infrared crystallinity lower than 0.5%; b) from 5% by weight to 95% by weight of an isotactic 1-butene-based polymer having the following features: isotactic pentads (mmmm) measured by 13C-NMR, higher than 80%; melting point higher than 80° C.; and intrinsic viscosity (IV) measured in tetrahydronaphtalene (THN) at 135° C. comprised between 0.1 dl/g and 5 dl/g.

    摘要翻译： 1-丁烯聚合物组合物，其包含：a）5重量％至95重量％的无规立构1-丁烯基聚合物，具有以下特征：分子量Mw / Mn等于或低于4的分布; 通过13 C-NMR测量的rr三单元组在5％和50％之间; 在差示扫描量热仪（DSC）上可检测不到融合焓; 在135℃下在四氢萘（THN）中测得的特性粘度（Ⅳ）为0.85dl / g至5.0dl / g; 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-丁烯基聚合物：通过13 C-NMR测量的全同立构五单元组（mmmm）高于80％; 熔点高于80℃。 在135℃下在四氢萘（THN）中测得的特性粘度（IV）为0.1dl / g至5dl / g。