VORRICHTUNG ZUM VORMISCHEN UND EINSPEISEN VON ADDITIVEN IN EINEM POLYMERSCHMELZESTROM
    52.
    发明公开
    VORRICHTUNG ZUM VORMISCHEN UND EINSPEISEN VON ADDITIVEN IN EINEM POLYMERSCHMELZESTROM 有权
    设备技术预混合和添加剂喂养聚合物熔体流动

    公开(公告)号:EP1322410A1

    公开(公告)日:2003-07-02

    申请号:EP01980467.3

    申请日:2001-10-02

    申请人: Zimmer AG

    IPC分类号: B01F5/12 B01F5/14

    摘要: The invention relates to a device for mixing additives and introducing them into a polymer melt stream. Said device comprises a line element (2), a first and second intermediary element (4a, 4b) and a pump assembly group (6), the polymer melt stream being guided in channels (8, 10) of the line element. The first intermediary element (4a) comprises a feeding element (12) which extends in the first channel in such a way that it forms a ring channel. Said feeding element (12) is surrounded by openings (14) by which means part of the polymer melt is sucked off to be mixed with an additive in the pump assembly group (6). The mixture is then redirected into the polymer melt stream via the feeding element (12). The inventive device enables shorter retention times of the polymer to be achieved and involves little effort in terms of technical equipment.