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146 条记录 (耗时 0.03 秒)

    Process for producing methacrylic acid esters
    4.
    发明授权
    Process for producing methacrylic acid esters 失效
    生产甲基丙烯酸酯的方法

    公开(公告)号：US5072027A

    公开(公告)日：1991-12-10

    申请号：US416993

    申请日：1989-10-04

    申请人： Akihiro Kobayashi ,  Toshio Akima ,  Takayuki Saito ,  Toshiyuki Fujita

    发明人： Akihiro Kobayashi ,  Toshio Akima ,  Takayuki Saito ,  Toshiyuki Fujita

    IPC分类号： C07C67/03

    CPC分类号： C07C67/03

    摘要： In a process for producing a methacrylic acid ester by subjecting methyl methacrylate and an alcohol to a transesterification reaction in the presence of a catalyst and a polymerization inhibitor, the filtration time of catalyst and the like can be shortened by making a total water content in the catalyst, alcohol and methyl methacrylate 1000 ppm or less, or the generation of large bubbles during the reaction can be prevented by adding the starting alcohol to the reaction system at the alcohol conversion of 40% or more, or high catalytic activity is obtained even if a secondary or tertiary alcohol is used as a starting material by using as a catalyst that obtained by drying lithium hydroxide monohydrate with heating, these effects being also obtained by combining individual conditions.

    摘要翻译： 在通过在催化剂和阻聚剂的存在下使甲基丙烯酸甲酯和醇进行酯交换反应来生产甲基丙烯酸酯的方法中，通过使催化剂等的总含水量可以缩短催化剂等的过滤时间 催化剂，醇和甲基丙烯酸甲酯1000ppm以下，或通过在醇转化率为40％以上时将起始醇加入到反应体系中，可以防止反应期间产生大的气泡，即使得到高催化活性，即使 通过使用通过加热将氢氧化锂一水合物干燥而获得的催化剂，可以使用仲醇或叔醇作为原料，这些效果也通过组合各个条件而获得。

    Brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl)-indane and method for preparing the same
    7.
    发明授权
    Brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl)-indane and method for preparing the same 失效
    溴化1,3-二甲基-3-苯基-1-（2-甲基-2-苯基丙基） - 茚满及其制备方法

    公开(公告)号：US5939593A

    公开(公告)日：1999-08-17

    申请号：US110818

    申请日：1998-07-07

    申请人： Atsushi Fujioka ,  Kiyotaka Mashita ,  Takayuki Saito ,  Akihiro Kobayashi ,  Fumiaki Kanega

    发明人： Atsushi Fujioka ,  Kiyotaka Mashita ,  Takayuki Saito ,  Akihiro Kobayashi ,  Fumiaki Kanega

    IPC分类号： C07C17/12 ,  C07C25/22 ,  C07C22/00

    CPC分类号： C07C25/22 ,  C07C17/12

    摘要： A brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl) indane herein disclosed is represented by the following general formula (I): ##STR1## (wherein x and z each independently represents an integer ranging from 0 to 5, y represents an integer ranging from 0 to 4, provided that x+y+z>1). The compound can be prepared by a method which comprises the step of reacting 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl) indane with a bromination agent. The brominated indane is excellent in flame-resistance, has a high thermal decomposition temperature and never generates brominated dioxine and/or brominated dibenzofuran when burning at a specific temperature. Therefore, the compound is suitably used for imparting flame-resistance to a variety of thermoplastic and thermosetting resins.

    摘要翻译： 本文公开的溴化1,3-二甲基-3-苯基-1-（2-甲基-2-苯基丙基）二氢化茚由以下通式（I）表示：（其中x和z各自独立地表示0以上的整数 至5，y表示0至4的整数，条件是x + y + z> 1）。 该化合物可以通过包括使1,3-二甲基-3-苯基-1-（2-甲基-2-苯基丙基）二氢化茚与溴化剂反应的步骤的方法制备。 溴化二环烷具有优异的耐火性，热分解温度高，在特定温度下燃烧时，不会产生溴化二恶英和/或溴化二苯并呋喃。 因此，该化合物适合用于赋予各种热塑性和热固性树脂的阻燃性。

    Mass air flow measurement device
    10.
    发明授权
    Mass air flow measurement device 有权
    大气流量测量装置

    公开(公告)号：US08573041B2

    公开(公告)日：2013-11-05

    申请号：US13314591

    申请日：2011-12-08

    申请人： Takayuki Saito ,  Takayuki Yogo ,  Shinya Igarashi ,  Hiromu Kikawa

    发明人： Takayuki Saito ,  Takayuki Yogo ,  Shinya Igarashi ,  Hiromu Kikawa

    IPC分类号： G01M15/04

    CPC分类号： G01F1/6842 ,  G01F5/00 ,  H01L2224/48091 ,  H01L2924/00014

    摘要： An arrangement of a mass intake air flow measurement device suitable for integrating a humidity sensing device as well as a temperature sensing device and a pressure sensing device is provided. A second bypass passage 501 bypassing a bypass passage 205 is formed and a humidity sensing device 500 is mounted in the second bypass passage 501. A second bypass passage inlet 502 and a second bypass passage outlet 503 formed in a wall surface of the bypass passage 205 are opened parallel to the direction of flow of air flowing in the bypass passage 205.

    摘要翻译： 提供了一种适合于集成湿度感测装置以及温度感测装置和压力感测装置的大量进气流量测量装置的布置。 形成旁通旁路通路205的第二旁路通路501，在第二旁路通路501中安装湿度检测装置500.形成在旁通路205的壁面的第二旁路通路入口502和第二旁路通路出口503 平行于在旁路通路205中流动的空气的流动方向开口。