Multiple extruder assembly and process for continuous reactive extrusion
    3.
    发明申请
    Multiple extruder assembly and process for continuous reactive extrusion 审中-公开
    多个挤出机组装和连续反应挤出的方法

    公开(公告)号:US20060076705A1

    公开(公告)日:2006-04-13

    申请号:US11047472

    申请日:2005-01-31

    IPC分类号: B29C47/38 B29C47/60

    摘要: Methods are disclosed for a novel and useful single pass extrusion process for the reactive extrusion and compounding of polymers. Traditional extruders utilized in reactive processes are of length to diameter ratios ranging from 30 to 1 to as high as 56 to 1. The process disclosed uses a series of sequential, very closely-coupled, independently driven screw extruders having a total effective length to diameter ratio much greater than 70 to 1 and as high as 132 to 1 or greater, and providing greatly extended reaction times, separate and multiple introductions of reactive and non-reactive agents and mechanical connections allowing for convenient screw changes and differential thermal expansion. The assembly is employed to economically produce grafted polyolefins, produce ionomers without employing the use of strong caustic agents, remove large volumes of unwanted polymer processing solvents and produce other reacted polymer species in one continuous pass.

    摘要翻译: 公开了用于聚合物的反应性挤出和复合的新型和有用的单程挤出方法的方法。 在反应过程中使用的传统挤出机的长径比为30至1至高达56至1.所公开的方法使用一系列顺序,非常紧密耦合的独立驱动的螺杆挤出机,其具有总有效长度至直径 比例大于70比1,高达132比1或更高,并提供大大延长的反应时间,反应和非反应剂的分离和多次引入以及允许方便的螺杆变化和不同热膨胀的机械连接。 该组件用于经济地生产接枝的聚烯烃,生产离聚物而不使用强碱性试剂,除去大量不需要的聚合物加工溶剂,并在一个连续通过中产生其它反应的聚合物物质。