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78 条记录 (耗时 0.025 秒)

    Polybenzazole block copolymer
    51.
    发明授权
    Polybenzazole block copolymer 失效
    聚吲唑嵌段共聚物

    公开(公告)号：US07799893B2

    公开(公告)日：2010-09-21

    申请号：US11718932

    申请日：2005-11-07

    申请人： Roland Martin

    发明人： Roland Martin

    IPC分类号： C08G73/06

    CPC分类号： C08G73/22 ,  B01D71/62 ,  B01D71/68 ,  B01D71/80 ,  C08G73/18 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1048 ,  H01M8/1081 ,  H01M2300/0082 ,  Y02P70/56

    摘要： The invention concerns a polybenzazole block copolymer suitable for solid polymer electrolyte membranes application comprising: at least one block (B1) comprising recurring units (R), more than 50% of said recurring units comprising at least one benzimidazole group (formula 1a and 1b) and at least one sulfonic acid group (formula 2) [recurring units (R1)];  wherein E in formula 1a can be a substituted or non-substituted carbon atom or nitrogen atom, and Q in formula 1 can be a hydrogen atom or a group comprising a sulfonic acid group; and at least one block (B2) comprising recurring units (R′), more than 50% by moles of said recurring units comprising at least one benzazole group chosen among benzoxazole group (formula 3a and 3b) and benzothiazole group (formula 4a and 4b) [recurring units (R2)],  wherein E′ and E″ in formula 3a and 4a, respectively, can be a substituted or non-substituted carbon atom or nitrogen atom, and the block (B2) is free from sulfonic acid groups. The invention also relates to a polybenzazole polymer composition thereof, a solid polymer electrolyte membrane therefrom, a solid polymer electrolyte doped membrane therefrom, and the fuel cell therefrom.

    摘要翻译： 本发明涉及一种适用于固体聚合物电解质膜应用的聚吲哚嵌段共聚物，其包括：至少一个包含重复单元（R）的嵌段（B1），超过50％的所述重复单元包含至少一个苯并咪唑基（式1a和1b） 和至少一个磺酸基（式2）[重复单元（R 1）]; 其中式1a中的E可以是取代或未取代的碳原子或氮原子，式1中的Q可以是氢原子或包含磺酸基的基团; 和包含重复单元（R'）的至少一个嵌段（B2），大于50摩尔％的所述重复单元包含至少一个选自苯并恶唑基（式3a和3b）和苯并噻唑基（式4a和4b）的苯并唑基 ）[重复单元（R2）]，其中式3a和4a中的E'和E“分别可以是取代或未取代的碳原子或氮原子，并且嵌段（B2）不含磺酸基团。 本发明还涉及其聚吲哚聚合物组合物，其固体聚合物电解质膜，由其固体聚合物电解质掺杂的膜及其燃料电池。

    Brake disk for a motor vehicle
    55.
    发明授权
    Brake disk for a motor vehicle 有权
    汽车制动盘

    公开(公告)号：US06234282B1

    公开(公告)日：2001-05-22

    申请号：US09289059

    申请日：1999-04-12

    申请人： Roland Martin

    发明人： Roland Martin

    IPC分类号： F16D6510

    CPC分类号： F16D65/126 ,  F16D65/128 ,  F16D2065/132 ,  F16D2065/1344

    摘要： A brake disk for a motor vehicle, particularly made of a fiber-glass-reinforced material, includes two disk elements with ribs forming air ducts, which can be connected with one another. The ribs of the disk elements have mutually corresponding hook-type connections on opposite front surfaces.

    摘要翻译： 用于机动车辆的制动盘，特别是由玻璃纤维增​​强材料制成的制动盘包括两个带有形成空气管道的肋片，它们可彼此连接。 盘元件的肋在相对的前表面上具有相互对应的钩型连接。

    Preparation of p-cymene and homologous alkylbenzenes
    57.
    发明授权
    Preparation of p-cymene and homologous alkylbenzenes 失效
    对甲基异丙苯和同系烷基苯的制备

    公开(公告)号：US4720603A

    公开(公告)日：1988-01-19

    申请号：US16941

    申请日：1987-02-20

    申请人： Roland Martin ,  Walter Gramlich

    发明人： Roland Martin ,  Walter Gramlich

    IPC分类号： C07B61/00 ,  B01J27/00 ,  C07C1/00 ,  C07C5/367 ,  C07C15/02 ,  C07C67/00 ,  C07C5/32

    CPC分类号： C07C5/367

    摘要： Alkylbenzenes of the general formula I ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl, preferably methyl, and R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, preferably methyl, are prepared by catalytic aromatization of the corresponding alkenylcyclohexenes of the general formula II ##STR2## by carrying out the conversion in the gas phase at 150.degree.-400.degree. C. over a catalyst which contains palladium oxide and sulfur and/or selenium or selenium oxide on active carbon.

    摘要翻译： 通式Ⅰ的烷基苯，其中R 1是C 1 -C 4烷基，优选甲基，R 2是氢或C 1 -C 4烷基，优选甲基，是通过一般的相应烯基环己烯的催化芳构化制备的 通过在活性炭上在含有氧化钯和硫和/或硒或氧化硒的催化剂上，在150-400℃的气相中进行转化，得到式II的化合物（II）。

    Selective power supply for travelling wire EDM apparatus
    58.
    发明授权
    Selective power supply for travelling wire EDM apparatus 失效
    行走线电火花加工设备的选择电源

    公开(公告)号：US4652717A

    公开(公告)日：1987-03-24

    申请号：US787982

    申请日：1985-10-16

    申请人： Jean P. Briffod ,  Roland Martin

    发明人： Jean P. Briffod ,  Roland Martin

    IPC分类号： B23H7/02 ,  B23H7/04 ,  B23H1/02

    CPC分类号： B23H7/04

    摘要： In a travelling wire EDM apparatus the thermal stresses of the electrode wire are substantially reduced by detecting the position of the triggering electrical discharges preceding the machining electrical discharges, and by controlling the supply of the machining electrical discharge current at one end of the machining zone, at the other end of the machining zone or at both ends of the machining zone. When a machining electrical discharge is located between one end of the machining zone and a first reference position, the machining current is applied at that end. When the electrical discharge is located between the other end of the machining zone and a second reference position, machining current is supplied at that second end. When the electrical discharge is located between the two reference positions, the machining current is applied simultaneously at both ends of the machining zone.

    摘要翻译： 在行走线EDM装置中，通过检测在加工放电之前的触发放电的位置，并且通过控制加工区域的一端的加工放电电流的供给，电极线的热应力大大减小， 在加工区域的另一端或加工区域的两端。 当加工放电位于加工区域的一端和第一基准位置之间时，在该端施加加工电流。 当放电位于加工区域的另一端和第二基准位置之间时，在该第二端提供加工电流。 当放电位于两个基准位置之间时，在加工区域的两端同时施加加工电流。

    Apparatus and process for preventing rupture of the wire electrode of an EDM travelling wire apparatus
    59.
    发明授权
    Apparatus and process for preventing rupture of the wire electrode of an EDM travelling wire apparatus 失效
    用于防止EDM行进线装置的线电极断裂的装置和方法

    公开(公告)号：US4329558A

    公开(公告)日：1982-05-11

    申请号：US171456

    申请日：1980-07-23

    申请人： Roland Martin

    发明人： Roland Martin

    IPC分类号： B23H7/04 ,  B23P1/02

    CPC分类号： B23H7/04 ,  Y10T83/148

    摘要： An arrangement for detecting abnormal concentration of electrical discharges between a travelling wire electrode and a workpiece in a travelling wire EDM apparatus. The abnormal electrical discharge detector of the invention comprises a circuit measuring the voltage across a pair of contacts supplying machining current to the electrode wire. The length of the electrode wire between the two contacts forms a pair of variable resistors connected in a branch of a Wheatstone bridge circuit. The voltage measuring circuit, connected across a diagonal of the bridge, in turn controls some of the machining parameters such as to prevent damages, as for example rupture of the wire electrode, when an abnormal concentration of electrical discharges is detected at a given point of the machining zone between the wire electrode and the workpiece.

    摘要翻译： 用于检测行进用线材EDM装置中的行走线电极与工件之间的放电异常浓度的装置。 本发明的异常放电检测器包括测量一对向电极线提供加工电流的触点两端的电压的电路。 两个触点之间的电极线的长度形成一对连接在惠斯登电桥电路的支路中的可变电阻器。 连接在桥的对角线上的电压测量电路进而控制一些加工参数，例如在给定点处检测到放电的异常浓度时，防止损坏，例如线电极的断裂 线电极和工件之间的加工区域。