Refrigerant compositions
    1.
    发明授权
    Refrigerant compositions 失效
    制冷剂组合物

    公开(公告)号:US06495060B2

    公开(公告)日:2002-12-17

    申请号:US09242809

    申请日:2000-02-10

    IPC分类号: C09K500

    摘要: A composition comprising (A) 1,1,2,2,3-pentafluoropropane(CF2HCF2CFH2) and (B) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,3,3-pentafluoropropane (CF3CH2CF2H) and 1,1,1,2,2,3,3,4,4-nonafluorobutane (CF3CF2CF2CF2H) is described. The composition is useful as a refrigerant and may be used in chillers as a replacement for refrigerant R-11.

    摘要翻译: 一种组合物,其包含(A)1,1,2,2,3-五氟丙烷(CF 2 HCF 2 CFH 2)和(B)至少一种选自1,1,1,3,3-五氟丙烷(CF 3 CH 2 CF 2 H)和1 ,1,1,2,2,3,3,4,4-九氟丁烷(CF 3 CF 2 CF 2 CF 2 H)。 该组合物可用作制冷剂,并且可用于冷却器中作为制冷剂R-11的替代物。

    Laser weapon simulator apparatus with firing detection system
    3.
    发明授权
    Laser weapon simulator apparatus with firing detection system 失效
    具有点火检测系统的激光武器模拟器装置

    公开(公告)号:US5591032A

    公开(公告)日:1997-01-07

    申请号:US409336

    申请日:1995-03-23

    IPC分类号: F41G3/26

    CPC分类号: F41G3/2683

    摘要: A laser weapon simulator apparatus for practice in the shooting of a firearm at a target having reflective material thereon. The apparatus includes a laser beam transmitter that is actuable to emit a laser beam of short duration, a laser beam receiver for collecting and processing a reflected portion of the laser beam, circuitry for detecting the emission of the laser beam by the transmitter, and a visual display. The receiver includes circuitry adapted to produce a "hit" signal upon receiving the reflected portion of the laser beam and the detecting circuitry is adapted to produce a "try" signal in response to the emission of the laser beam. The visual display produces an output "hit" display signal upon the concurrent receipt of a "hit" signal from the receiver and a "try" signal from the detecting circuitry.

    摘要翻译: 一种激光武器模拟装置,用于在其上具有反光材料的目标枪上射击枪械。 该装置包括可致动以发射短持续时间的激光束的激光束发射器,用于收集和处理激光束的反射部分的激光束接收器,用于检测由发射器发射激光束的电路,以及 视觉显示。 接收机包括适于在接收到激光束的反射部分时产生“命中”信号的电路,并且检测电路适于响应于激光束的发射而产生“尝试”信号。 视觉显示器在从接收器同时接收“命中”信号和来自检测电路的“尝试”信号时产生输出“命中”显示信号。

    Polymeric foams
    5.
    发明授权
    Polymeric foams 失效
    聚合物泡沫

    公开(公告)号:US5264462A

    公开(公告)日:1993-11-23

    申请号:US26218

    申请日:1993-03-01

    IPC分类号: C08J9/14

    CPC分类号: C08J9/143

    摘要: A method for the preparation of a polymeric foam which comprises vaporising a fluorine-containing ether in the presence of a foamable polymer or the precursors of a foamable polymer.

    摘要翻译: 一种制备聚合物泡沫的方法,其包括在可发泡聚合物或可发泡聚合物的前体存在下蒸发含氟醚。

    Polyols
    6.
    发明授权
    Polyols 失效
    多元醇

    公开(公告)号:US4806694A

    公开(公告)日:1989-02-21

    申请号:US98970

    申请日:1987-09-10

    CPC分类号: C07C43/137 C08G18/638

    摘要: Fluorine-containing polyols obtained by the free radical addition of a fluoro-olefin having the general formula: ##STR1## wherein Y represents F and Z represents Cl or F(CF.sub.2)n--wherein n is an integer from 0 to 10 or Y and Z together form a --(CF.sub.2)m-- chain wherein m represents an integer from 2 to 4 to a polyol wherein each hydroxyl group is directly attached to a group of the formula:--(CH.sub.2).sub.p O-- (2)wherein p is an integer of at least 4.

    摘要翻译: 通过自由基添加具有以下通式的氟代烯烃获得的含氟多元醇:其中Y表示F且Z表示Cl或F(CF 2)n - ,其中n为0至10的整数 或Y和Z一起形成 - (CF 2)m-链,其中m表示2至4的整数,其中每个羟基直接连接到下式的基团: - (CH 2)p O-(2)其中 p是至少4的整数。