中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

196 records (took 0.041 seconds)

    Cyclopentadienyl-containing low-valent early transition metal olefin polymerization catalysts
    37.
    发明授权
    Cyclopentadienyl-containing low-valent early transition metal olefin polymerization catalysts 失效
    含环戊二烯基的低价早期过渡金属烯烃聚合催化剂

    公开(公告)号：US06544922B1

    公开(公告)日：2003-04-08

    申请号：US10198241

    申请日：2002-07-18

    Applicant: Tobin J. Marks ,  Lubin Luo ,  Sung Cheol Yoon

    Inventor： Tobin J. Marks ,  Lubin Luo ,  Sung Cheol Yoon

    IPC: C08F464

    CPC classification number: C08F220/14 ,  B01J31/2295 ,  B01J2231/12 ,  B01J2531/46 ,  C08F4/6192 ,  C08F4/65908 ,  C08F4/6592 ,  C08F10/00 ,  C08F12/08 ,  C08F212/08 ,  Y10S526/943

    Abstract: A catalyst system useful to polymerize and co-polymerize polar and non-polar olefin monomers is formed by in situ reduction with a reducing agent of a catalyst precursor comprising {Cp*MRR′n}+{A}− wherein Cp* is a cyclopentadienyl or substituted cyclopentadienyl moiety; M is an early transition metal; R is a C1-C20 hydrocarbyl; R′ are independently selected from hydride, C1-C20 hydrocarbyl, SiR″3, NR″2, OR″, SR″, GeR″3, and SnR″3 containing groups (R″=C1-C10 hydrocarbyl); n is an integer selected to balance the oxidation state of M; and A is a suitable non-coordinating anionic cocatalyst or precursor. This catalyst system may form stereoregular olefin polymers including syndiotactic polymers of styrene and methylmethacrylate and isotactic copolymers of polar and nonpolar olefin monomers such as methylmethacrylate and styrene.

    Abstract translation: 通过用包含Cp *是环戊二烯基或取代的环戊二烯基部分的催化剂前体的还原剂进行原位还原来形成可用于聚合和共聚极性和非极性烯烃单体的催化剂体系; M是早期过渡金属; R是C1-C20烃基; R'独立地选自氢化物，C 1 -C 20烃基，SiR''3，NR''2，OR“，SR”，GeR'3和含SnR'3的基团（R“= C1- C10烃基）; n是选择以平衡M的氧化态的整数; 而A是合适的非配位阴离子助催化剂或前体。 该催化剂体系可以形成包含苯乙烯和甲基丙烯酸甲酯的间同立构聚合物的立构规环烯烃聚合物，以及极性和非极性烯烃单体如甲基丙烯酸甲酯和苯乙烯的全同立构共聚物。

    Organo-Lewis acids of enhanced utility, uses thereof, and products based thereon
    38.
    发明授权
    Organo-Lewis acids of enhanced utility, uses thereof, and products based thereon 有权
    其有效路易斯酸具有增强的效用，其用途和基于其的产品

    公开(公告)号：US06403732B2

    公开(公告)日：2002-06-11

    申请号：US09863721

    申请日：2001-05-23

    Applicant: Tobin J. Marks ,  You-Xian Chen

    Inventor： Tobin J. Marks ,  You-Xian Chen

    IPC: C07F1700

    CPC classification number: B01J31/2295 ,  B01J31/146 ,  B01J31/1608 ,  B01J2531/39 ,  B01J2531/46 ,  B01J2531/48 ,  B01J2531/49 ,  C07F17/00 ,  C08F4/61908 ,  C08F4/6592 ,  C08F10/00 ,  C08G65/12 ,  C08G65/20 ,  Y10S526/943 ,  C08F4/52

    Abstract: The organo-Lewis acids are novel triarylboranes which are are highly fluorinated. Triarylboranes of one such type contain at least one ring substituent other than fluorine. These organoboranes have a Lewis acid strength essentially equal to or greater than that of the corresponding organoborane in which the substituent is replaced by fluorine, or have greater solubility in organic solvents. Another type of new organoboranes have 1-3 perfluorinated fused ring groups and 2-0 perfluorophenyl groups. When used as a cocatalyst in the formation of novel catalytic complexes with d- or f-block metal compounds having at least one leaving group such as a methyl group, these triorganoboranes, because of their ligand abstracting properties, produce corresponding anions which are capable of only weakly, if at all, coordinating to the metal center, and thus do not interfere in various polymerization processes such as are described.

    Abstract translation: 有机路易斯酸是高度氟化的新型三芳基硼烷。 一种这样的三芳基硼烷含有除氟以外的至少一个环取代基。 这些有机硼烷具有基本上等于或大于其中取代基被氟代替的有机硼烷的路易斯酸强度，或者在有机溶剂中具有更大的溶解度。 另一种新型有机硼烷具有1-3个全氟化稠环基团和2-0个全氟苯基。 当作为助催化剂用于与具有至少一个离去基团如甲基的d-或f-嵌段金属化合物形成新的催化络合物时，由于它们的配体抽出性质，这些三有机硼烷产生相应的阴离子，其能够 只有在与金属中心配位的情况下才是弱的，因此不会干扰如所述的各种聚合方法。

    Organo-Lewis acids of enhanced utility, uses thereof, and products based thereon
    39.
    发明授权
    Organo-Lewis acids of enhanced utility, uses thereof, and products based thereon 有权
    其有效路易斯酸具有增强的效用，其用途和基于其的产品

    公开(公告)号：US06291695B1

    公开(公告)日：2001-09-18

    申请号：US09329765

    申请日：1999-06-10

    Applicant: Tobin J. Marks ,  You-Xian Chen

    Inventor： Tobin J. Marks ,  You-Xian Chen

    IPC: C07F1700

    CPC classification number: B01J31/2295 ,  B01J31/146 ,  B01J31/1608 ,  B01J2531/39 ,  B01J2531/46 ,  B01J2531/48 ,  B01J2531/49 ,  C07F17/00 ,  C08F4/61908 ,  C08F4/6592 ,  C08F10/00 ,  C08G65/12 ,  C08G65/20 ,  Y10S526/943 ,  C08F4/52

    Abstract: The organo-Lewis acids are novel triarylboranes which are highly fluorinated. Triarylboranes of one such type contain at least one ring substituent other than fluorine. These organoboranes have a Lewis acid strength essentially equal to or greater than that of the corresponding organoborane in which the substituent is replaced by fluorine, or have greater solubility in organic solvents. Another type of new organoboranes have 1-3 perfluorinated fused ring groups and 2-0 perfluorophenyl groups. When used as a cocatalyst in the formation of novel catalytic complexes with d- or f-block metal compounds having at least one leaving group such as a methyl group, these triorganoboranes, because of their ligand abstracting properties, produce corresponding anions which are capable of only weakly, if at all, coordinating to the metal center, and thus do not interfere in various polymerization processes such as are described.

    Abstract translation: 有机路易斯酸是高度氟化的新型三芳基硼烷。 一种这样的三芳基硼烷含有除氟以外的至少一个环取代基。 这些有机硼烷具有基本上等于或大于其中取代基被氟代替的有机硼烷的路易斯酸强度，或者在有机溶剂中具有更大的溶解度。 另一种新型有机硼烷具有1-3个全氟化稠环基团和2-0个全氟苯基。 当作为助催化剂用于与具有至少一个离去基团如甲基的d-或f-嵌段金属化合物形成新的催化络合物时，由于它们的配体抽出性质，这些三有机硼烷产生相应的阴离子，其能够 只有在与金属中心配位的情况下才是弱的，因此不会干扰如所述的各种聚合方法。

    Treatment of a composition comprising a trimethylolalkane bis-monolinear formal
    40.
    发明授权
    Treatment of a composition comprising a trimethylolalkane bis-monolinear formal 有权
    包含三羟甲基烷烃双 - 单变体形式的组合物的处理

    公开(公告)号：US6096905A

    公开(公告)日：2000-08-01

    申请号：US324435

    申请日：1999-06-01

    Applicant: Carolyn Supplee ,  Tobin J. Marks ,  William E. Slinkard ,  Edward G. Zey

    Inventor： Carolyn Supplee ,  Tobin J. Marks ,  William E. Slinkard ,  Edward G. Zey

    IPC: C07D317/12 ,  C07B61/00 ,  C07C29/10 ,  C07C29/128 ,  C07C31/22 ,  C07D319/06

    CPC classification number: C07D319/06

    Abstract: A process for treating a composition containing a substantial proportion of trimethylolpropane bis-monolinear formal (TMP-BMLF) or trimethylolethane bis-monolinear formal (TME-BMLF), e.g., a heavy ends residue obtained from the purification of a crude trimethylolpropane (TMP) or trimethylolethane (TME) product, wherein the composition is contacted at an elevated temperature with a strong acid catalyst, e.g., methanesulfonic acid, to produce a composition containing significantly increased amounts of TMP and trimethylolpropane monocyclic formal (TMP-MCF) or TME and trimethylolethane monocyclic formal (TME-MCF) respectively.

    Abstract translation: 一种用于处理含有相当比例的三羟甲基丙烷双 - 单体形式（TMP-BMLF）或三羟甲基乙烷双 - 单体形式（TME-BMLF）的组合物的方法，例如从纯化三羟甲基丙烷（TMP）获得的重馏分残余物， 或三羟甲基乙烷（TME）产物，其中组合物在高温下与强酸催化剂（例如甲磺酸）接触以产生含有显着增加量的TMP和三羟甲基丙烷单环形式（TMP-MCF）或TME和三羟甲基乙烷的组合物 单体形式（TME-MCF）。

Patent Agency Ranking