中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

333 records (took 0.045 seconds)

    Olefin polymerization catalysts containing chelating dianionic ligands
    21.
    发明授权
    Olefin polymerization catalysts containing chelating dianionic ligands 失效
    含有螯合二阴离子配体的烯烃聚合催化剂

    公开(公告)号：US06544918B1

    公开(公告)日：2003-04-08

    申请号：US09907180

    申请日：2001-07-17

    Applicant: Sandor Nagy ,  Karen L. Neal-Hawkins ,  Jonathan L. Schuchardt

    Inventor： Sandor Nagy ,  Karen L. Neal-Hawkins ,  Jonathan L. Schuchardt

    IPC: B01J3100

    CPC classification number: C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/659

    Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises an activator and a complex that incorporates a Group 3 to 10 transition metal and at least one chelating dianionic bis(allyl) or bis(benzyl) ligand. The ligands are often easy to make, and they are readily incorporated into transition metal complexes. By modifying the structure of the dianionic ligand, polyolefin makers can control comonomer incorporation, catalyst activity, and polymer properties.

    Abstract translation: 公开了一种可用于烯烃聚合的催化剂体系。 该催化剂体系包括活化剂和掺入第3至10族过渡金属和至少一种螯合的二 - 阴离子双（烯丙基）或双（苄基）配体的络合物。 配体通常易于制备，并且它们容易并入过渡金属络合物中。 通过改变二阴离子配体的结构，聚烯烃制造商可以控制共聚单体掺入，催化剂活性和聚合物性质。

    Catalyst for preparing 1,3-alkanediol from epoxide derivative
    22.
    发明授权
    Catalyst for preparing 1,3-alkanediol from epoxide derivative 有权
    用于从环氧化物衍生物制备1,3-链烷二醇的催化剂

    公开(公告)号：US06541414B2

    公开(公告)日：2003-04-01

    申请号：US10046291

    申请日：2002-01-16

    Applicant: Byeong-No Lee ,  Byung-Soon Chen

    Inventor： Byeong-No Lee ,  Byung-Soon Chen

    IPC: B01J3100

    CPC classification number: C07C29/141 ,  C07C67/37 ,  C07C69/675 ,  C07C31/20 ,  C07C31/205

    Abstract: A process for preparing an 1,3-alkanediol through carbonylation of an epoxide derivative includes the steps of (a) reacting an epoxide derivative with alcohol and carbon monoxide in a solvent at a temperature from about 30 to about 150° C. and at a pressure from about 50 to about 3000 psig in the presence of a catalyst system including an effective amount of a cobalt catalyst and an effective amount of a promoter to afford a reaction mixture including a 3-hydroxyester or derivative thereof in an amount of from 2 to about 95% by weight, (b) separating the reaction product and solvent from the catalyst and promoter, (c) reacting said reaction product and solvent with hydrogen at a temperature from about 30 to about 350° C. and at a pressure from about 50 to about 5000 psig in the presence of a catalyst system for hydrogenation to prepare a hydrogenation product mixture including a 1,3-alkanediol, and (d) recovering the 1,3-alkanediol from the hydrogenation product mixture.

    Abstract translation: 通过环氧化物衍生物羰基化制备1,3-链烷二醇的方法包括以下步骤：（a）使环氧化物衍生物与醇和一氧化碳在溶剂中在约30至约150℃的温度和 在包括有效量的钴催化剂和有效量的助催化剂的催化剂体系的存在下，从约50至约3000psig的压力提供包含3-羟基酯或其衍生物的反应混合物，其量为2至 约95重量％，（b）从催化剂和促进剂中分离反应产物和溶剂，（c）使反应产物和溶剂与氢在约30至约350℃的温度和约 在用于氢化的催化剂体系的存在下，制备包含1,3-链烷二醇的氢化产物混合物，和（d）从氢化产物混合物中回收1,3-链烷二醇的50至约5000psig。

    Combined porous organic and inorganic oxide materials prepared by non-ionic surfactant templating route
    25.
    发明授权
    Combined porous organic and inorganic oxide materials prepared by non-ionic surfactant templating route 有权
    通过非离子表面活性剂模板法制备的组合多孔有机和无机氧化物材料

    公开(公告)号：US06465387B1

    公开(公告)日：2002-10-15

    申请号：US09691092

    申请日：2000-10-18

    Applicant: Thomas J. Pinnavaia ,  Louis Mercier

    Inventor： Thomas J. Pinnavaia ,  Louis Mercier

    IPC: B01J3100

    CPC classification number: B01J31/067 ,  B01J20/00 ,  B01J20/10 ,  B01J20/22 ,  B01J29/0308 ,  B01J31/0274 ,  B01J31/08 ,  B01J31/1633 ,  B01J35/10 ,  B01J2229/32

    Abstract: A method for preparing synthetic, semi-crystalline, porous inorganic oxide composition containing a reactive organic silane moiety which is on the surface of pore walls. The composition is prepared from a poly(oxyalkylene) based surfactant and a hydrolyzable organic silane. The surfactant is preferably a poly(ethylene) oxide, a poly(propylene) oxide polymer or mixtures thereof. The organic silane is preferably mercaptopropylsilane. The compositions are particularly useful as adsorbents, and catalysts.

    Abstract translation: 制备含孔反应性有机硅烷部分的合成，半结晶，多孔无机氧化物组合物的方法。 组合物由聚（氧化烯）基表面活性剂和可水解的有机硅烷制备。 表面活性剂优选为聚（乙烯）氧化物，聚（丙烯）氧化物聚合物或其混合物。 有机硅烷优选为巯基丙基硅烷。 该组合物特别可用作吸附剂和催化剂。

    Amine elimination process for making single-site catalysts
    27.
    发明授权
    Amine elimination process for making single-site catalysts 失效
    用于制备单中心催化剂的胺消除方法

    公开(公告)号：US06440889B1

    公开(公告)日：2002-08-27

    申请号：US09930631

    申请日：2001-08-15

    Applicant: Barbara M. Tsuie

    Inventor： Barbara M. Tsuie

    IPC: B01J3100

    CPC classification number: C07F17/00 ,  B01J31/2295 ,  B01J2531/40 ,  B01J2531/48 ,  C07D209/94 ,  C08F10/00 ,  C08F2420/05 ,  C08F4/65925

    Abstract: An amine-elimination process for making single-site catalysts is disclosed. First, an indenoindole or its synthetic equivalent reacts with a tetrakis(dialkylamino) Group 4 metal compound to give a tris(dialkyl-amino) compound. This versatile intermediate can be halogenated, alkylated, or reacted directly with cyclopentadienyl precursors to provide valuable indenoindolyl-Group 4 metal complexes. The process selectively provides mono-indenoindolyl complexes. In addition, it enables the economical preparation of desirable Cp- or Cp-like derivatives and allows the use of an inexpensive Group 4 transition metal source.

    Abstract translation: 公开了制备单中心催化剂的胺消除方法。 首先，茚并茚或其合成当量与四（二烷基氨基）4族金属化合物反应，得到三（二烷基 - 氨基）化合物。 这种多功能的中间体可以被卤化，烷基化或直接与环戊二烯基前体反应，以提供有价值的茚并吲哚基 - 第4族金属络合物。 该方法选择性地提供单茚并吲哚基复合物。 此外，它能够经济地制备所需的Cp-或Cp-样衍生物，并允许使用廉价的第4族过渡金属源。

    Lewis acid catalyst composition
    28.
    发明授权
    Lewis acid catalyst composition 失效
    路易斯酸催化剂组合物

    公开(公告)号：US06436866B1

    公开(公告)日：2002-08-20

    申请号：US09578862

    申请日：2000-05-26

    Applicant: Joji Nishikido ,  Hitoshi Nakajima

    Inventor： Joji Nishikido ,  Hitoshi Nakajima

    IPC: B01J3100

    CPC classification number: B01J31/122 ,  B01J31/0224 ,  B01J31/0227 ,  B01J31/0231 ,  B01J31/0252 ,  B01J31/0271 ,  B01J2231/326 ,  B01J2231/341 ,  B01J2231/342 ,  B01J2231/346 ,  B01J2231/348 ,  B01J2231/4205 ,  B01J2231/70

    Abstract: Disclosed is a Lewis acid catalyst composition comprising a specific mixed medium and a Lewis acid catalyst (II), wherein the specific mixed medium is mixed medium (I) comprising a perfluorinated aliphatic hydrocarbon (A) and at least one non-fluorinated hydrocarbon or a mixed medium (I′) comprising a perfluorinated aliphatic hydrocarbon (A), a perfluorinated aromatic hydrocarbon (C) and water (D), and wherein the Lewis acid catalyst (II) is at least one compound selected from the group consisting of compounds respectively represented by the following formulae (1), (2) and (3): (RfSO3)nM  (1), [(RfSO2)2N]nM  (2), and [(RfSO2)3C]nM  (3). Also disclosed is a Lewis acid catalyst represented by the above-mentioned formula (3).

    Abstract translation: 公开了包含特定混合介质和路易斯酸催化剂（II）的路易斯酸催化剂组合物，其中特定混合介质是包含全氟化脂族烃（A）和至少一种非氟化烃的混合介质（I）或 包含全氟化脂族烃（A），全氟化芳烃（C）和水（D）的混合介质（I'），其中路易斯酸催化剂（II）分别是选自化合物中的至少一种化合物 由下式（1），（2）和（3）表示：并且还公开了由上述式（3）表示的路易斯酸催化剂。

    Production of powder catalysts
    30.
    发明授权
    Production of powder catalysts 失效
    生产粉末催化剂

    公开(公告)号：US06420303B1

    公开(公告)日：2002-07-16

    申请号：US09461071

    申请日：1999-12-14

    Applicant: Guy Debras ,  Alain Standaert ,  Hendrik D'Haese

    Inventor： Guy Debras ,  Alain Standaert ,  Hendrik D'Haese

    IPC: B01J3100

    CPC classification number: C08F10/02 ,  B01J27/138 ,  B01J37/349 ,  C01F5/30 ,  C01P2004/61 ,  C07F3/003 ,  C08F4/16 ,  C08F4/6543 ,  C08F4/022

    Abstract: A process for the production of a magnesium chloride powder for use in a catalyst, the process comprising vaporizing magnesium chloride in a plasma torch and quenching the vapor with a liquid containing an electron donor to form a magnesium chloride-based powder catalyst wherein at least 80% by weight of the magnesium chloride is present as the hexagonal phase thereof. The invention also relates to a precursor for such a catalyst.

    Abstract translation: 一种用于生产用于催化剂的氯化镁粉末的方法，该方法包括在等离子体焰炬中蒸发氯化镁并用含有电子给体的液体猝灭蒸气以形成基于氯化镁的粉末催化剂，其中至少80 氯化镁的重量百分比以其六方相存在。 本发明还涉及这种催化剂的前体。

Patent Agency Ranking