Dual-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements
    41.
    发明申请
    Dual-Edge Working Surfaces for Polycrystalline Diamond Cutting Elements 有权
    用于多晶金刚石切割元件的双刃加工面

    公开(公告)号:US20080142275A1

    公开(公告)日:2008-06-19

    申请号:US12037312

    申请日:2008-02-26

    IPC分类号: E21B10/43

    CPC分类号: E21B10/567

    摘要: A polycrystalline diamond cutting element for earth boring drill bits presents regions of different abrasion resistance to the earthen formation when in operation. The cutting element has an end working surface and a region which is substantially free of catalyzing material, forming a layer. In operation, this layer wears at a different rate than the underlying material causing a pair of protruding lips to form. The end working surface may be substantially planar or frusto-conical in form.

    摘要翻译: 用于镗孔钻头的多晶金刚石切割元件在操作时呈现出与土层形成不同的耐磨性的区域。 切割元件具有端部工作表面和基本上不含催化材料的区域,形成层。 在操作中,该层以与底层材料不同的速率磨损,导致形成一对突出的唇缘。 端部工作表面可以是基本上平面的或截头圆锥形的。

    Vinyl addition polycylic olefin polymers prepared using non-olefinic chain transfer agents and uses thereof
    43.
    发明申请
    Vinyl addition polycylic olefin polymers prepared using non-olefinic chain transfer agents and uses thereof 有权
    使用非烯烃链转移剂制备的乙烯基加成聚烯烃聚合物及其用途

    公开(公告)号:US20070066775A1

    公开(公告)日:2007-03-22

    申请号:US11517538

    申请日:2006-09-07

    IPC分类号: C08F4/80

    摘要: A method of polymerizing poly(cyclic)olefin monomers encompassing (a) combining a monomer composition containing the poly(cyclic)olefin monomers, a non-olefinic chain transfer agent and an activator compound to form a mixture; (b) heating the mixture; and (c) adding a polymerization catalyst containing Ni and/or Pd. The non-olefinic chain transfer agent includes one or more compounds selected from H2, alkylsilanes, alkylalkoxysilanes, alkylgermanes, alkylalkoxygermanes, alkylstannanes, and alkylalkoxystannanes. The activator is characterized as having an active hydrogen with a pKa of at least 5. The resulting poly(cyclic)olefin polymers can be used in photoresist compositions.

    摘要翻译: 聚合聚(环状)烯烃单体的方法包括(a)将含有聚(环状)烯烃单体,非烯烃链转移剂和活化剂化合物的单体组合物混合以形成混合物; (b)加热混合物; 和(c)加入含有Ni和/或Pd的聚合催化剂。 非烯烃链转移剂包括一种或多种选自H 2,烷基硅烷,烷基烷氧基硅烷,烷基锗烷,烷基烷氧基锗烷,烷基锡烷和烷基烷氧基烷基的化合物。 活化剂的特征在于具有pKa至少为5的活性氢。所得聚(环状)烯烃聚合物可用于光致抗蚀剂组合物中。

    Apparatus and methods for dynamically pressure testing an article
    44.
    发明授权
    Apparatus and methods for dynamically pressure testing an article 失效
    用于动态压力测试物品的装置和方法

    公开(公告)号:US07024918B2

    公开(公告)日:2006-04-11

    申请号:US10780698

    申请日:2004-02-19

    IPC分类号: G01M3/02

    摘要: The dynamic pressure tester includes a first cylinder and a first piston movable relative to the cylinder. The piston may have one or more weights applied thereto. The cylinder is vibrated by a shaker table and pressure pulses in the fluid are transmitted to a stationary housing and to a second piston in the housing. The opposite side of the piston contacts a corrosive or caustic fluid also in contact with the sensor face of an article being tested. The pressure pulses are transmitted by the second piston and corrosive fluid to the sensor face, enabling dynamic pressure testing in the corrosive fluid.

    摘要翻译: 动压测试仪包括可相对于气缸移动的第一气缸和第一活塞。 活塞可以具有施加到其上的一个或多个重量。 气缸由振动台振动,流体中的压力脉冲传递到固定壳体和壳体中的第二活塞。 活塞的相对侧接触也与被测试物品的传感器面接触的腐蚀性或苛性液体。 压力脉冲由第二活塞和腐蚀性流体传递到传感器面,使腐蚀性液体能够进行动态压力测试。