1H-pyrrolo-[1,2-b][1,2,4,]triazole compound and its synthetic intermediate, and method of preparing a 1H-1,2,4-triazole-5-yl-acetic acid ester compound
    22.
    发明授权
    1H-pyrrolo-[1,2-b][1,2,4,]triazole compound and its synthetic intermediate, and method of preparing a 1H-1,2,4-triazole-5-yl-acetic acid ester compound 失效
    1H-吡咯并[1,2-b] [1,2,4]三唑化合物及其合成中间体,以及制备1H-1,2,4-三唑-5-基 - 乙酸酯化合物

    公开(公告)号:US06384219B1

    公开(公告)日:2002-05-07

    申请号:US09003881

    申请日:1998-01-07

    IPC分类号: C07D48704

    摘要: There is disclosed a 1H-pyrrolo-[1,2-b][1,2,4]triazole compound represented by formula (I): wherein R is an alkyl group; R1, R2, R3, R1′, R2′, and R3′ each are a hydrogen atom or an alkyl group; R1 and R2, and R1′ and R2′ may bond together to form a ring, respectively; R4 is a hydrogen atom or an alkyl group, and X is heterocyclic group, a substituted amino group, or an aryl group. The compound is useful as a photographic cyan coupler. There is also disclosed synthetic intermediates of the compound and a production method of the intermediates.

    摘要翻译: 公开了由式(I)表示的1H-吡咯并[1,2-b] [1,2,4]三唑化合物:其中R是烷基; R1,R2,R3,R1',R2'和R3'各自为氢原子或烷基; R 1和R 2,并且R 1'和R 2'可以分别键合在一起形成环; R4是氢原子或烷基,X是杂环基,取代氨基或芳基。 该化合物可用作照相青色成色剂。 还公开了该化合物的合成中间体和中间体的制备方法。

    High temperature sliding element and method for preventing high
temperature sliding wear
    23.
    发明授权
    High temperature sliding element and method for preventing high temperature sliding wear 失效
    高温滑动元件及防止高温滑动磨损的方法

    公开(公告)号:US4902576A

    公开(公告)日:1990-02-20

    申请号:US919455

    申请日:1986-10-16

    IPC分类号: C04B41/52 C04B41/89 F16C33/04

    摘要: A high temperature sliding element is provided with a metallic film formed of any one of metals Ni, Mn, Cr, Fe and Co, and alloys of these metals on a sliding surface of a substrate of carbide ceramics or nitride ceramics in accordance with physical vapor deposition. When the substrate and a sliding counterpart ceramic member are slid in a high temperature atmosphere 500.degree. C. or higher with the metallic film intervening therebetween, wear due to sliding motion between the substrate and the counterpart ceramic member can effectively be reduced. The metallic film forms an oxidized sliding surface layer at the high temperature.

    摘要翻译: 高温滑动元件设置有由金属Ni,Mn,Cr,Fe和Co中的任何一种形成的金属膜,以及这些金属在碳化物陶瓷或氮化物陶瓷的基板的滑动表面上的合金根据物理蒸气 沉积 当衬底和滑动配对陶瓷构件在介于其间的金属膜的500℃或更高的高温环境中滑动时,可以有效地减少由于衬底和配对陶瓷构件之间的滑动而导致的磨损。 金属膜在高温下形成氧化的滑动表面层。

    Yellow dye-forming coupler and silver halide color photographic
light-sensitive material containing the same
    25.
    发明授权
    Yellow dye-forming coupler and silver halide color photographic light-sensitive material containing the same 失效
    黄色染料成色剂和卤化银彩色摄影感光材料含有

    公开(公告)号:US5283166A

    公开(公告)日:1994-02-01

    申请号:US883130

    申请日:1992-05-14

    IPC分类号: G03C7/36

    CPC分类号: G03C7/36

    摘要: An acylacetamide-type yellow dye-forming coupler. The acyl group of the coupler is a bicyclo[1.1.1]pentane-1-carbonyl group, a bicyclo[2.1.1]hexane-1-carbonyl group, a bicyclo[2.2.1.]heptane-1-carbonyl group, a bicyclo[2.2.2]octane-1-carbonyl group, a tricyclo[3.1.1.0.sup.3,6 ]heptane-6-carbonyl group, a tricyclo[3.3.0.0.sup.3,7 ]octane-1-carbonyl group, or a tricyclo[3.3.1.0.sup.3,7 ]nonane-3-carbonyl group.

    摘要翻译: 酰基乙酰胺型黄色染料成色剂。 成色剂的酰基是双环[1.1.1]戊烷-1-羰基,双环[2.1.1]己烷-1-羰基,双环[2.2.1。]庚烷-1-羰基, 双环[2.2.2]辛烷-1-羰基,三环[3.1.1.03.6]庚烷-6-羰基,三环[3.3.0.03.7]辛烷-1-羰基或三环[ 3.3.1.03,7]壬烷-3-羰基。