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    • 17. 发明授权
    • Heat exchanger for easily polymerizing substance-containing gas provided with gas distributing plate
    • 用于容易聚合含气体分布板的含物气体的换热器
    • US06382313B2
    • 2002-05-07
    • US09792469
    • 2001-02-23
    • Tetsuji MitsumotoTakeshi NishimuraKazuhiko SakamotoHiroo Iwato
    • Tetsuji MitsumotoTakeshi NishimuraKazuhiko SakamotoHiroo Iwato
    • F28D700
    • F28F9/0278B01J19/002B01J2219/00252F28D7/1607F28D7/1623
    • A heat exchanger for an easily polymerizing substance-containing gas provided with a shell possessed of a heat-exchanging gas inlet and a heat-exchanging gas outlet and a heat-exchanging part adapted to circulate fluid introduced from outside the shell between the gas inlet and said gas outlet, which heat exchanger is characterized by being provided with a gas distributing plate between the gas inlet and the heat-exchanging part. The heat exchanger is characterized by the gas distributing plate having a cross-sectional area in the range of 1.0-10.0 times the cross-section of the gas inlet. When an easily polymerizing substance-containing gas contacts a structure, the gas is condensed on the contact surface of the structure and suffered to generate a polymer. According to the heat exchanger of this invention, by uniformly distributing a gas in the heat-exchanging part, it is made possible to attain uniform distribution of heat, depress the possible condensation of the gas, and prevent the easily polymerizing substance from succumbing to polymerization.
    • 一种用于容易聚合的含物质气体的热交换器,其具有壳体,该壳体具有热交换气体入口和热交换气体出口,以及热交换部分,其适于使从壳体外部引入的流体在气体入口和 所述气体出口,其特征在于在气体入口和热交换部分之间设置有气体分配板。 热交换器的特征在于气体分布板的横截面积在气体入口横截面的1.0-10.0倍的范围内。 当容易聚合的物质的气体接触结构时,气体在结构的接触表面上被冷凝,并产生聚合物。 根据本发明的热交换器,通过在热交换部中均匀分布气体,可以获得均匀的热分布,抑制气体的可能的冷凝,并且防止容易聚合的物质屈服于聚合 。
    • 19. 发明授权
    • Rail arrangement for flush sliding door panels
    • 滑动门板的导轨布置
    • US4565031A
    • 1986-01-21
    • US574881
    • 1984-01-30
    • Kazuhiko Sakamoto
    • Kazuhiko Sakamoto
    • E05D15/10E05D15/20
    • E05D15/1042E05D2015/1055E05D2015/106E05D2015/1063E05Y2900/20
    • A double panel sliding door arrangement where the two panels will lie in one plane when shut, said arrangement comprises upper and lower rails disposed on upper and lower wall portions of a door mounting frame to laterally move and guide right and left door panels by means of rollers provided at the upper and lower ends of the right and left sliding panels. The rails each have at the right and left sides thereof an oblique portion bent backwards, a rail switching portion and a guide portion in such a manner that one panel can be shifted beforehand, and to switch the rail. The sliding panels can be fully closed without a gap between the panels with only one rail without the necessity of chamfering the inner ends of the panels.
    • 一种双面板滑动门装置,其中两个面板在关闭时将位于一个平面中,所述装置包括设置在门安装框架的上壁和下壁部分上的上轨道和下轨道,以横向移动并引导左右门板,借助于 设置在左右滑动面板的上端和下端的滚子。 轨道的左右两侧具有向后弯曲的倾斜部分,轨道切换部分和引导部分,使得可以预先移动一个面板并切换轨道。 滑动面板可以完全关闭,而仅在一个轨道之间没有间隙,而不需要倒角面板的内端。
    • 20. 发明授权
    • Method for producing acrylic acid, and method for producing hydrophilic resin and method for producing water-absorbing resin using production method thereof
    • 制造丙烯酸的方法,以及亲水性树脂的制造方法以及使用其制造方法制造吸水性树脂的方法
    • US08426640B2
    • 2013-04-23
    • US12989553
    • 2009-04-24
    • Kazuhiko SakamotoMasaru Ishikawa
    • Kazuhiko SakamotoMasaru Ishikawa
    • C07C51/42C08F20/06
    • C07C51/44C07C51/25C07C51/43C07C51/487C08F220/06C07C57/04
    • [Problem]There is provided, in a process for producing acrylic acid having a catalytic gas-phase oxidation reaction step, a condensation step, a collection step, a distillation step, a crystallization step, an acrylic acid recovering step or the like, a production method for acrylic acid, in which contamination of acrylic acid with protoanemonin without providing any additional purification treatment to the resultant purified acrylic acid can be reduced.[Solution]The problems described above can be solved by providing the production method for acrylic acid comprising A) a step obtaining an acrylic acid-containing gas by a catalytic gas-phase oxidation reaction of gas containing a acrylic acid raw material; B) a step of obtaining the acrylic acid-containing solution by introducing the acrylic acid-containing gas to the collection column or the condensation column and performing collection or condensation; C) a step of obtaining the crude acrylic acid by introducing the acrylic acid-containing solution to the distillation column or the crystallizer and performing distillation or crystallization, wherein a step of heat treating the acrylic acid-containing solution or the crude acrylic acid containing 100 ppm by mass or more of protoanemonin, under the condition of 100° C. or more of temperature, 1 hour or more of time and a step of introducing the heat-treated acrylic acid-containing solution or the crude acrylic acid to the collection column, the condensation column, the distillation column or the crystallizer, are included.
    • 在具有催化气相氧化反应步骤,缩合步骤,收集步骤,蒸馏步骤,结晶步骤,丙烯酸回收步骤等的丙烯酸生产方法中,提供了 可以减少丙烯酸的生产方法,其中丙烯酸与原白蛋白素的污染,而不对所得纯化的丙烯酸进行任何额外的纯化处理。 [解决方案]通过提供丙烯酸的制造方法可以解决上述问题,其包括:A)通过含有丙烯酸原料的气体的催化气相氧化反应获得含丙烯酸的气体的步骤; B)通过将含丙烯酸的气体引入收集塔或冷凝塔并进行收集或冷凝来获得含丙烯酸溶液的步骤; C)通过将含丙烯酸的溶液引入蒸馏塔或结晶器并进行蒸馏或结晶来获得粗丙烯酸的步骤,其中将含有丙烯酸的溶液或粗丙烯酸热处理的步骤包括100 在100℃以上的温度,1小时以上的时间的条件下,将经热处理的丙烯酸溶液或粗丙烯酸引入收集塔中的步骤 ,缩合塔,蒸馏塔或结晶器。