Article for connecting optical fibers
    71.
    发明授权
    Article for connecting optical fibers 失效
    光纤连接条

    公开(公告)号:US5091988A

    公开(公告)日:1992-02-25

    申请号:US684129

    申请日:1991-04-12

    IPC分类号: G02B6/36 G02B6/38 G02B6/42

    摘要: An optical fiber connector pair is provided, which includes a plug assembly and a receptacle. An optical connection can be repeatedly made and broken by insertion and withdrawal, repectively, of the plug assembly relative to the receptacle. The final alignment of the mating fiber ends is provided by a pair of silicon blocks, each having a guiding groove formed in one surface. One block is included in the receptacle, and the other block is included in the plug assembly. One fiber end is affixed in each groove. The act of inserting the plug assembly in the receptacle brings the grooved surfaces together such that each fiber is captured by the opposing groove.

    Process for improving photostability of titanium dioxide pigments in
binder compositions without decreasing reflectivity
    72.
    发明授权
    Process for improving photostability of titanium dioxide pigments in binder compositions without decreasing reflectivity 失效
    改善粘合剂组合物中二氧化钛颜料的光稳定性而不降低反射率的方法

    公开(公告)号:US5037476A

    公开(公告)日:1991-08-06

    申请号:US617465

    申请日:1990-11-19

    IPC分类号: C09C1/36 C09D7/12

    摘要: Paints and coatings involving semiconducting pigments such as titanium dioxide generally degrade because of oxidation of the binder by reactants that are photochemically produced on the pigment surface, and because of direct binder oxidation by charges that are photogenerated in the pigment. In titanium dioxide, this interaction is substantially reduced by avoiding reduced species and by introducing into the titanium dioxide trap states where photogenerated electron-hole pairs recombine by processes such as prolonged milling. Through these expedients, a substantial increase in the stability of the pigment containing composition is obtained.

    摘要翻译: 涉及半导体颜料如二氧化钛的涂料和涂料通常由于在颜料表面上光化学反应产生的反应物的粘合剂的氧化以及由于颜料中光生的电荷的直接粘合剂氧化而降解。 在二氧化钛中,这种相互作用通过避免减少的物质并通过引入二氧化钛捕获状态而显着降低,其中光生电子 - 空穴对通过诸如延长研磨的方法重组。 通过这些方法,可获得含颜料组合物的稳定性的显着提高。