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    Process for producing thermoplastic granulated polymer material from polymer solutions
    1.
    发明授权
    Process for producing thermoplastic granulated polymer material from polymer solutions 失效
    从聚合物溶液制备热塑性粒状聚合物材料的方法

    公开(公告)号：US5684087A

    公开(公告)日：1997-11-04

    申请号：US719775

    申请日：1996-09-25

    申请人： Claus Wulff ,  Gottfried Zaby ,  Clemens Casper ,  Klemens Kohlgruber ,  Thomas Bamberger ,  Hugo Obermann

    发明人： Claus Wulff ,  Gottfried Zaby ,  Clemens Casper ,  Klemens Kohlgruber ,  Thomas Bamberger ,  Hugo Obermann

    IPC分类号： C08J3/12 ,  B29B9/00 ,  B29B9/06 ,  B29K69/00 ,  C08G63/89 ,  C08G64/40 ,  C08J3/14 ,  C08G63/48

    CPC分类号： C08J3/14 ,  B29B7/7485 ,  B29B9/06 ,  C08G63/89 ,  C08G64/403

    摘要： This invention relates to a process for producing granulated polymer materials from polymer solutions, in which organic solvent of the polymer solution is evaporated in a heat exchanger, optionally with the admixture of steam, or in a holding tube with the admixture of steam, and the paste-like mixture of concentrated solution, solvent vapour and optionally of condensed steam is separated in a separator provided with rotating built-in components for cleaning off the walls. The pre-concentrated polymer solution is further concentrated in the separator by supplying heat by way of heating the separator walls or the rotating built-in components and by the shearing energy of the rotating built-in components.Residual degassing of the solvent is effected before granulation, e.g. in the discharge extruder of the separator which is provided with rotating built-in components, through one or more degassing zones, optionally by the additional admixture of entraining media, such as inert gas or steam, for example.

    摘要翻译： 本发明涉及一种由聚合物溶液制备粒状聚合物材料的方法，其中聚合物溶液的有机溶剂在热交换器中蒸发，任选地与蒸汽混合，或在具有蒸汽混合物的保持管中蒸发， 浓缩溶液，溶剂蒸气和任选的冷凝蒸汽的糊状混合物在具有旋转的内置部件的隔板中分离，用​​于清洁壁。 通过加热隔离壁或旋转的内置部件以及旋转的内置部件的剪切能量，将预浓缩的聚合物溶液进一步浓缩在隔板中。 在造粒前进行溶剂的残留脱气，例如 在具有旋转内置部件的分离器的排出挤出机中，通过一个或多个脱气区，任选地通过例如惰性气体或蒸汽的夹带介质的附加混合物。