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    Metallocenes and process for the preparation of metallocenes
    1.
    发明授权
    Metallocenes and process for the preparation of metallocenes 失效
    金属茂和金属茂制备方法

    公开(公告)号：US06175026B1

    公开(公告)日：2001-01-16

    申请号：US09543886

    申请日：2000-04-06

    申请人： John J. Eisch ,  Yun Qian ,  J{umlaut over (u)}rgen Weber ,  Nicola Zandona ,  Fabian Siberdt

    发明人： John J. Eisch ,  Yun Qian ,  J{umlaut over (u)}rgen Weber ,  Nicola Zandona ,  Fabian Siberdt

    IPC分类号： C07F1700

    CPC分类号： C07F17/00 ,  C08F4/65908 ,  C08F4/65912 ,  C08F110/02 ,  C08F2420/02 ,  Y10S526/943 ,  C08F4/6592 ,  C08F2500/12

    摘要： A metallocene corresponding to the formula wherein M is a group 4 transition metal, each Y is, independently, selected from the group of halogen, hydrocarbyl and hydrocarbyloxy, R1, R4 are, independently, selected from the group of hydrogen, hydrocarbyl, hydrocarbyloxy, R2, R3, R5, R6, R7, R8 are, independently, selected from the group of hydrogen, hydrocarbyl, hydrocarbyloxy, with the provision that, respectively, R2 and R3, R5 and R6, R7 and R8 can be linked to each other. A process for the preparation of metallocenes comprising the following steps: (a) contacting, in a solvent, a transition metal halide of formula MX4 with an organometallic compound of formula M′Rm, wherein M is a group 4 transition metal, X is a halogen, M′ is an element chosen from the groups 1, 2 and 13 of the periodic table, R is hydrogen, an alkyl, aryl, alkenyl or alkynyl group containing up to 20 carbon atoms, m=1 when M′ is a group 1 element, m=2 when M′ is a group 2 element, m=3 when M′ is a group 13 element, in order to reduce M, which leads to a subvalent transition metal halide, (b) purifying the subvalent transition metal halide and (c) contacting the subvalent transition metal halide with at least one fulvene compound.

    摘要翻译： 对应于甲基呋喃M的茂金属是4族过渡金属，每个Y独立地选自卤素，烃基和烃氧基，R 1，R 4独立地选自氢，烃基，烃氧基，R 2 R 3，R 5，R 6，R 7，R 8独立地选自氢，烃基，烃氧基，其中R2和R3，R5和R6，R7和R8可以相互连接。 一种制备金属茂的方法，包括以下步骤：（a）在溶剂中使式MX4的过渡金属卤化物与式M'Rm的有机金属化合物接触，其中M是第4族过渡金属，X是 卤素，M'是选自周期表第1,2和13族的元素，R是氢，含有至多20个碳原子的烷基，芳基，烯基或炔基，当M'是基团时，m = 1 1元素，m = 2，当M'为第2族元素时，m = 3，当M'为13族元素时， 以减少M，其导致亚价过渡金属卤化物，（b）纯化亚价过渡金属卤化物和（c）使亚价过渡金属卤化物与至少一种富烯化合物接触。

    Metallocenes and process for the preparation of metallocenes
    2.
    发明授权
    Metallocenes and process for the preparation of metallocenes 失效
    金属茂和金属茂制备方法

    公开(公告)号：US6087515A

    公开(公告)日：2000-07-11

    申请号：US167597

    申请日：1998-10-07

    申请人： John J. Eisch ,  Yun Qian ,  Jurgen Weber ,  Nicola Zandona ,  Fabian Siberdt

    发明人： John J. Eisch ,  Yun Qian ,  Jurgen Weber ,  Nicola Zandona ,  Fabian Siberdt

    IPC分类号： C07F17/00 ,  C08F4/64 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/02 ,  C07F7/00

    CPC分类号： C07F17/00 ,  C08F110/02 ,  C08F4/65908 ,  C08F4/65912 ,  Y10S526/943

    摘要： A metallocene corresponding to the formula ##STR1## wherein M is a group 4 transition metal, each Y is, independently, selected from the group of halogen, hydrocarbyl and hydrocarbyloxy,R.sup.1, R.sup.4 are, independently, selected from the group of hydrogen, hydrocarbyl, hydrocarbyloxy,R.sup.2, R.sup.3, R.sup.5, R.sup.6, R.sup.7, R.sup.8 are, independently, selected from the group of hydrogen, hydrocarbyl, hydrocarbyloxy, with the provision that, respectively, R.sup.2 and R.sup.3, R.sup.5 and R.sup.6, R.sup.7 and R.sup.8 can be linked to each other.A process for the preparation of metallocenes comprising the following steps:(a) contacting, in a solvent, a transition metal halide of formula MX.sub.4 with an organometallic compound of formula M'R.sub.m, wherein M is a group 4 transition metal, X is a halogen, M' is an element chosen from the groups 1, 2 and 13 of the periodic table, R is hydrogen, an alkyl, aryl, alkenyl or alkynyl group containing up to 20 carbon atoms, m=1 when M' is a group 1 element, m=2 when M' is a group 2 element, m=3 when M' is a group 13 element, in order to reduce M, which leads to a subvalent transition metal halide, (b) purifying the subvalent transition metal halide and (c) contacting the subvalent transition metal halide with at least one fulvene compound.

    摘要翻译： 对应于下式的金属茂其中M是第4族过渡金属，每个Y独立地选自卤素，烃基和烃氧基，R 1，R 4独立地选自氢，烃基，烃氧基， R2，R3，R5，R6，R7，R8独立地选自氢，烃基，烃氧基，其中R2和R3，R5和R6，R7和R8可以相互连接 。 一种制备金属茂的方法，包括以下步骤：（a）在溶剂中使式MX4的过渡金属卤化物与式M'Rm的有机金属化合物接触，其中M是第4族过渡金属，X是 卤素，M'是选自周期表第1,2和13族的元素，R是氢，含有至多20个碳原子的烷基，芳基，烯基或炔基，当M'是基团时，m = 1 1元素，当M'为第2族元素时m = 2，当M'为13族元素时m = 3，以减少M，其导致亚价过渡金属卤化物，（b）纯化亚价过渡金属 卤化物和（c）使亚价过渡金属卤化物与至少一种富烯化合物接触。

    Catalytic solid for the (co)polymerization of ethylene, process for its preparation, and catalytic system for the (co)polymerization of ethylene
    3.
    发明授权
    Catalytic solid for the (co)polymerization of ethylene, process for its preparation, and catalytic system for the (co)polymerization of ethylene 失效

    公开(公告)号：US6013595A

    公开(公告)日：2000-01-11

    申请号：US607661

    申请日：1996-02-27

    申请人： Olivier Lhost ,  Nicola Zandona

    发明人： Olivier Lhost ,  Nicola Zandona

    IPC分类号： C08F4/642 ,  C08F4/02 ,  C08F4/52 ,  C08F4/60 ,  C08F4/602 ,  C08F4/619 ,  C08F4/6192 ,  C08F4/623 ,  C08F4/626 ,  C08F4/659 ,  C08F4/6592 ,  C08F4/78 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08F4/24

    CPC分类号： C08F10/02 ,  C08F10/00 ,  C08F110/02 ,  C08F4/63908 ,  C08F4/65925 ,  C08F4/63912

    摘要： A catalytic solid for (co)polymerization of ethylene, includes (a) at least one inorganic support; (b) at least one transition metal metallocene having a formula (C.sub.p).sub.a (C.sub.p ').sub.h MX.sub.x Z.sub.z, in which C.sub.p and C.sub.p each denote a cyclopentadienyl, indenyl, or fluorenyl radical or a substituted derivative of such a radical, coordinated to the central atom M, optionally the groups C.sub.p and C.sub.p are linked via a covalent bridge, M denotes the at lease one transition metal, which is selected from the group consisting of scandium, titanium, zirconium, hafnium and vanadium, a, b, x and z denote integers such that (a+b+x+z)=m, x>0, z.gtoreq.0 and a and/or b.noteq.0, m denotes the valency of the at least one transition metal M, X denotes a halogen, and Z denotes a hydrocarbon radical which may optionally comprise oxygen or a silyl radical of formula (--R.sub.1 --Si--R'R"R'") where R denotes an alkyl, alkenyl, aryl, alkoxy or cycloalkyl group comprising up to 20 carbon atoms, R', R", R'" are identical or different and each denote a halogen or an alkyl, alkenyl, aryl, alkoxy or cycloalkyl group comprising up to 20 carbon atoms, and t denotes 0 or 1; (c) at least one ionizing agent selected from the group consisting of triphenylcarbenium tetrakis(pentafluorophenyl)borate, N,N-dimethylanilinium tetrakis (pentafluorophenyl)borate, tri(n-butyl)ammonium tetrakis(pentafluorophenyl)borate, lithium tetrakis(pentafluorophenyl)borate, tris(pentafluorophenyl)boron, triphenylboron, trimethylboron, tris(trimethylsilyl)borate and organoboroxines, and (d) at least one chromium compound which is selected from the group consisting of chromium oxides, chromium acetate, chromium chloride, chromium sulfate, chromates, dichromates and chromium acetylacetonate, and which is present in a molar ratio of chromium/transition metal M ranging from 0.001 to 100.

    Process for the manufacture of a catalytic solid, catalytic solid and process for (co)polymerisation of olefins by means of this catalytic solid
    4.
    发明授权
    Process for the manufacture of a catalytic solid, catalytic solid and process for (co)polymerisation of olefins by means of this catalytic solid 失效
    通过该催化剂固体制备催化固体，催化固体和（烯）聚合烯烃的方法

    公开(公告)号：US5631334A

    公开(公告)日：1997-05-20

    申请号：US412412

    申请日：1995-03-27

    申请人： Nicola Zandona

    发明人： Nicola Zandona

    IPC分类号： C08F4/654 ,  C08F4/60 ,  C08F4/655 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02

    CPC分类号： C08F10/02 ,  C08F10/00 ,  C08F110/02

    摘要： Catalytic solid for the (co)polymerisation of at least one olefin, comprising a coprecipitate of magnesium and of at least one transition metal, obtained by means of a process comprising the preparation of a mixture of a magnesium compound, such as the chloride or a magnesium alcoholate, and of a compound denoted by one of the formulae MY.sub.x (O--R').sub.t-x and M'O.sub.y (O--R").sub.s-2y and the treatment of the resulting mixture with a complex of formula M"(A)Al.sub.2 (X',X").sub.8 where X' and X" denote halogens, M and M' transition metals of groups IVB and VB, M" a transition metal of group IVB, A an aromatic hydrocarbon, Y a halogen or a group (O--R'"), and R', R" and R'" an alkyl, aryl or cycloalkyl group.

    摘要翻译： 用于使（至少一种）烯烃（共）聚合的催化固体，其包含镁和至少一种过渡金属的共沉淀物，其通过包括制备镁化合物如氯化物或 醇化物和由式MYx（O-R'）tx和M'Oy（O-R“）s-2y之一表示的化合物，并且用式M” （A）Al 2（X'，X“）8其中X'和X”表示IVB和VB族的卤素，M和M'过渡金属，M“是IVB族的过渡金属，A是芳族烃， Y是卤素或基团（O-R“'），R'，R”和R“'是烷基，芳基或环烷基。

    Process for the preparation of a catalytic system, process for the (CO)polymerization of olefins and (CO)polymers of at least one olefin
    8.
    发明授权
    Process for the preparation of a catalytic system, process for the (CO)polymerization of olefins and (CO)polymers of at least one olefin 失效
    用于制备催化体系的方法，用于（CO）聚合至少一种烯烃的烯烃和（CO）聚合物的方法

    公开(公告)号：US06555632B1

    公开(公告)日：2003-04-29

    申请号：US09111736

    申请日：1998-07-08

    申请人： Nicola Zandona

    发明人： Nicola Zandona

    IPC分类号： C08F442

    CPC分类号： C08F10/00 ,  C08F4/63908 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/63922 ,  C08F4/65908 ,  C08F4/65916 ,  C08F4/65922 ,  C08F4/65912

    摘要： Process for the preparation of a catalytic system according to which a mixture of a halogenated neutral metallocene derived from a transition metal chosen from groups IIIB, IVB, VB and VIB of the Periodic Table and of an organoaluminium compound is prepared and an ionising agent is added thereto. (Co)polymerisation process according to which a mixture of a halogenated neutral metallocene as defined above and of an organoaluminium compound is prepared, the olefin is brought into contact with this mixture and an ionising agent is added thereto.

    摘要翻译： 制备催化体系的方法，其中制备衍生自选自元素周期表IIIB，IVB，VB族和VIB族的过渡金属的卤化中性金属茂与有机铝化合物的混合物，并加入电离剂 到此。 （Co）聚合方法，根据该方法制备如上定义的卤化中性茂金属和有机铝化合物的混合物，使烯烃与该混合物接触，并向其中加入离子化剂。

    Membrane Electrode Assemblies for PEM Fuel Cells
    10.
    发明申请
    Membrane Electrode Assemblies for PEM Fuel Cells 审中-公开
    PEM燃料电池膜电极组件

    公开(公告)号：US20130330652A1

    公开(公告)日：2013-12-12

    申请号：US13995130

    申请日：2011-12-22

    申请人： Jens-Peter Suchsland ,  Matthias Binder ,  Nicola Zandona

    发明人： Jens-Peter Suchsland ,  Matthias Binder ,  Nicola Zandona

    IPC分类号： H01M4/86

    CPC分类号： H01M4/8657 ,  H01M4/8647 ,  H01M4/9016 ,  H01M4/921 ,  H01M4/923 ,  H01M4/925 ,  H01M8/1007 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/523

    摘要： The invention relates to Membrane Electrode Assemblies (“MEAs”) for solid-polymer-electrolyte proton-conducting membrane fuel cells (“PEM-FCs”) having better performance and improved durability, in particular when operated under severe electrochemical conditions such as fuel starvation and start-up/shut-down cycling. The MEAs are characterized in that at least one of its two electrode layers (EL1 and/or EL2) contains a first electrocatalyst (EC1) comprising an iridium oxide component in combination with at least one other inorganic oxide component and a second electrocatalyst (EC2/EC2′), which is free from iridium. Preferably, an iridium oxide/titania catalyst is employed as EC1. The MEAs reveal better performance, in particular when operated under severe operating conditions such as fuel starvation and start-up/shut-down cycling.

    摘要翻译： 本发明涉及具有更好性能和改善耐久性的固体 - 聚合物 - 电解质质子传导膜燃料电池（“PEM-FC”）的膜电极组件（“MEA”），特别是当在严重的电化学条件例如燃料不足 和启动/关闭循环。 MEA的特征在于，其两个电极层（EL1和/或EL2）中的至少一个包含第一电极催化剂（EC1），其包含与至少一种其它无机氧化物组分和第二电极催化剂（EC2 / EC2'），不含铱。 优选使用氧化铱/二氧化钛催化剂作为EC1。 多边环境协定显示出更好的性能，特别是在恶劣的操作条件下操作，如燃油不足和启动/关闭循环。