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    Catalyst system for lean burn engines
    41.
    发明申请
    Catalyst system for lean burn engines 有权
    用于稀薄燃烧发动机的催化剂系统

    公开(公告)号：US20040082470A1

    公开(公告)日：2004-04-29

    申请号：US10065497

    申请日：2002-10-24

    Inventor： Haren S. Gandhi ,  Jun Li ,  Joseph Robert Theis ,  Ronald Gene Hurley ,  William Lewis Henderson Watkins

    IPC: B01J023/00

    CPC classification number: B01D53/945 ,  B01J23/58 ,  B01J23/63 ,  B01J23/892 ,  B01J35/0006 ,  B01J37/0244 ,  B01J37/0248 ,  Y02T10/22

    Abstract: A catalyst system to provide emission reductions under lean and stoichiometric conditions. The catalyst system comprises a forward catalyst having a first cerium-free zone including oxides of aluminum, alkali metals and alkaline earth metals and precious metals and a second zone with a lower loading of precious metals, oxides of aluminum, alkali metals or alkaline earth metals. This forward catalyst stores NOx emissions under lean conditions for subsequent reduction and converts HC, CO and NOx during stoichiometric operation. The second downstream catalyst includes precious metals, reduces emissions under stoichiometric conditions, and stores any residual NOx emitted from the first catalyst for subsequent reduction. In another embodiment, a forward catalyst has top and bottom layers designed to reduce emissions under lean conditions. In this embodiment, a second downstream catalyst is used to reduce emissions under stoichiometric conditions. In yet another catalyst, multiple zones are created within a single catalyst.

    Abstract translation: 在精益和化学计量条件下提供减排的催化剂体系。 催化剂体系包括具有包括铝，碱金属和碱土金属的氧化物和贵金属的第一无铈区的正向催化剂和贵金属，氧化铝，碱金属或碱土金属的较低负载量的第二区 。 这种正向催化剂在稀薄条件下存储NOx排放，用于随后的还原，并在化学计量操作期间转化HC，CO和NO x。 第二下游催化剂​​包括贵金属，在化学计量条件下减少排放，并且存储从第一催化剂排放的任何残余NOx用于随后的还原。 在另一个实施方案中，正向催化剂具有设计成在稀薄条件下减少排放的顶层和底层。 在该实施方案中，第二下游催化剂​​用于在化学计量条件下减少排放。 在另一种催化剂中，在单一催化剂内形成多个区域。

    Polymerization catalyst used for producing polyolefins that have excellent combined properties
    42.
    发明申请
    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：US20040038810A1

    公开(公告)日：2004-02-26

    申请号：US10276618

    申请日：2002-12-03

    Inventor： Shahran Mihan ,  Martin Lux ,  Wolfgang Rhode ,  Andreas Deckers ,  Peter Kolle ,  Heinz Vogt

    IPC: B01J027/06 ,  B01J027/132 ,  B01J021/08 ,  B01J021/12 ,  B01J021/14 ,  B01J023/00

    CPC classification number: C08F10/02 ,  C08F4/24

    Abstract: 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 1100null 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.

    Abstract translation: 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。

    Lamination apparatus and methods
    47.
    发明申请
    Lamination apparatus and methods 有权
    层压装置和方法

    公开(公告)号：US20030191021A1

    公开(公告)日：2003-10-09

    申请号：US10115523

    申请日：2002-04-03

    Applicant: 3M Innovative Properties Company

    Inventor： Scott Alan Ripley ,  Donald Ivan Hirsch ,  William Frederic Bader

    IPC: B01J023/00

    CPC classification number: H01M8/1004 ,  H01M4/8605 ,  H01M4/8814 ,  H01M4/8875 ,  H01M4/8896 ,  H01M4/92 ,  H01M4/96 ,  H01M2008/1095 ,  Y02P70/56 ,  Y10T156/1062 ,  Y10T156/1074 ,  Y10T156/1077 ,  Y10T156/1098 ,  Y10T156/1317 ,  Y10T156/1702 ,  Y10T428/2804 ,  Y10T428/2839 ,  Y10T428/2857 ,  Y10T428/2861 ,  Y10T428/31504

    Abstract: Components for the manufacture of polymer electrolyte membrane fuel cells are provided, as well as apparatus and automatable methods for their manufacture by rotary die cutting and by lamination of various layers to form membrane electrode assemblies. A method and apparatus for performing the method are provided for making a membrane electrode assembly comprising the steps of providing a web of polymer electrolyte membrane material and a laminating station, where the web of polymer electrolyte membrane material is drawn between a pair of laminating rollers in the laminating station which form a laminating nip; die-cutting a first and second web of catalyst decal materials or electrode materials to make first and second workpieces at first and second rotary die stations; which typically have a shape other than a four-sided parallelogram; holding the die-cut workpieces by action of sub-ambient air pressure to an endless perforated belt of first and second vacuum conveyors, typically before they are fully cut from the first and second webs; transporting first and second workpieces to opposing sides of the membrane in the laminating station; concurrently feeding the first and second workpieces into the laminating nip adjacent to the membrane, typically before they are fully released by the first and second vacuum conveyors; and laminating the first and second workpieces to the membrane, advantageously in accurate registration.

    Abstract translation: 提供了用于制造聚合物电解质膜燃料电池的组件，以及通过旋转模切制造并通过层压各种层以形成膜电极组件的装置和可自动化方法。 提供了一种用于制造膜电极组件的方法和装置，其包括以下步骤：提供聚合物电解质膜材料的网状物和层压站，其中聚合物电解质膜材料的网状物被拉伸在一对层压辊之间 形成层压辊隙的层压站; 模切第一和第二网状催化剂贴花材料或电极材料，以在第一和第二旋转模具座处制造第一和第二工件; 其通常具有不同于四面平行四边形的形状; 通过次级环境空气压力的作用将切割的工件保持在第一和第二真空输送机的环形穿孔带上，通常在它们从第一和第二腹板完全切割之前; 将第一和第二工件运送到层压站中的膜的相对侧; 通常在第一和第二真空输送机完全释放之前，将第一和第二工件同时供给到邻近膜的层压辊隙中; 并且将第一和第二工件层合到膜上，有利地精确配准。

    Titanium oxide, and photocatalyst and photocatalyst coating composition using the same
    48.
    发明申请
    Titanium oxide, and photocatalyst and photocatalyst coating composition using the same 审中-公开
    氧化钛，光催化剂和光催化剂涂料组合物

    公开(公告)号：US20030162658A1

    公开(公告)日：2003-08-28

    申请号：US10322658

    申请日：2002-12-19

    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED

    Inventor： Kazunari Domen ,  Yoshiaki Sakatani

    IPC: B01J023/00

    CPC classification number: C01G23/006 ,  B01J23/02 ,  B01J35/004 ,  C01G23/003 ,  C09D1/00

    Abstract: A titanium oxide showing sufficiently high photocatalytic activities by irradiation of visible light is provided. The titanium oxide contains an element selected from IIa group elements, IIb group elements and lantanoids, and has (i) an X-ray photoelectron spectrum (XPS) which has a peak at a binding energy within the range of from 458 eV to 460 eV and (ii) index X (nullB/A) of about 0.98 or less, wherein A and B stand for half-widths of peaks at binding energies in 458-460 eV in the integrated spectra obtained by integrating the first and second XPS spectra and the seventh and eighth XPS spectra, respectively, which are obtained from eight-time XPS measurements of the titanium oxide.

    Abstract translation: 提供了通过可见光照射显示足够高的光催化活性的氧化钛。 氧化钛含有选自IIa族元素，IIb族元素和蓝宝石的元素，并且具有（i）在458eV〜460eV的结合能下具有峰值的X射线光电子光谱（XPS） 和（ii）约0.98或更低的指数X（= B / A），其中A和B代表通过对第一和第二XPS光谱进行积分而获得的积分光谱中458-460eV中结合能的峰的半峰宽 以及分别从氧化钛的八次XPS测量获得的第七和第八XPS光谱。

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