Composition and method for purging polymer processing equipment
    3.
    发明授权
    Composition and method for purging polymer processing equipment 失效
    清洗聚合物加工设备的组成和方法

    公开(公告)号:US06384002B1

    公开(公告)日:2002-05-07

    申请号:US09844459

    申请日:2001-04-27

    Abstract: A composition and method purge resin deposits from the inner surfaces of polymer processing machinery upon the flow of a stream of resin through the polymer processing machinery. The composition includes a mixture of purging agents separate from the resin that are poured into the stream of resin as an additive. The purging agents include a blowing agent to induce foaming of the stream of resin and an abrasive to scrub the resin deposits from the inner surfaces of the polymer processing machinery. The purging agents further include a surfactant to promote the flow of the stream of resin along the inner surfaces of polymer processing machinery. A binder binds the purging agents together in the mixture. The method includes feeding a mixture comprised of a blowing agent, an abrasive, a surfactant, and a binder into the stream of resin entering the polymer processing equipment.

    Abstract translation: 当聚合物加工机械流过树脂流时,组合物和方法吹扫树脂从聚合物加工机械的内表面沉积。 该组合物包括与作为添加剂的树脂流中注入的与树脂分离的清洗剂的混合物。 清洗剂包括用于引发树脂流发泡的发泡剂和用于从聚合物加工机械的内表面洗涤树脂沉积物的研磨剂。 清洗剂还包括促进树脂流沿着聚合物加工机械的内表面流动的表面活性剂。 粘合剂将清洗剂在混合物中结合在一起。 该方法包括将由发泡剂,研磨剂,表面活性剂和粘合剂组成的混合物进料到进入聚合物加工设备的树脂流中。

Patent Agency Ranking