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    • 55. 发明专利
    • Production of rubber-like polymer
    • 生产橡胶状聚合物
    • JPS5947213A
    • 1984-03-16
    • JP15817582
    • 1982-09-13
    • Japan Synthetic Rubber Co Ltd
    • TAKEUCHI YOSHIHIROTAGATA NOBUOTAKEUCHI HIROMIODA MASARU
    • C08F236/00B01J19/18C08F236/10G01N11/00G01N30/04G01N33/44
    • B01J19/1862B01J2219/00058B01J2219/00162B01J2219/00168B01J2219/00171
    • PURPOSE: To obtain a rubber-like polymer of uniform quality, by determining the polymer viscosity and conversion of the polymerization mixture during and after the polymerization reaction in carrying out the emulsion polymerization of a synthetic rubber and controlling the reaction according to the measured values.
      CONSTITUTION: In the continuous emulsion polymerization process for producing a synthetic rubber (e.g., styrene/butadiene copolymer), the measurement is made for the polymer conversion and viscosity of the polymerization mixture during and after the polymerization reaction. The measurement of polymer conversion (16) is carried out preferably by a differential pressure densitometer. A GPC device is used for the measurement of viscosity (17). These devices are used preferably on line. The GPC device is provided with an automatic sampling/ diluting device 17', and the polymer viscosity is determined by means of GPC. The desired polymer is obtained by comparing these measured values with their set values and controlling the factors of the polymerization reaction by the differences.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:为了获得均匀质量的橡胶状聚合物,通过在进行合成橡胶的乳液聚合并根据测量值控制反应的同时测定聚合反应期间和之后的聚合混合物的聚合物粘度和转化率。 构成:在用于制造合成橡胶(例如苯乙烯/丁二烯共聚物)的连续乳液聚合方法中,测量在聚合反应期间和之后聚合物转化率和聚合混合物的粘度。 聚合物转化率(16)的测量优选通过差压密度计进行。 使用GPC装置测量粘度(17)。 这些设备最好在线使用。 GPC装置设置有自动取样/稀释装置17',并且通过GPC确定聚合物粘度。 通过将这些测量值与其设定值进行比较并通过差异控制聚合反应的因素来获得所需的聚合物。