Method for the continuous production of thermoplastic molding materials
    1.
    发明授权
    Method for the continuous production of thermoplastic molding materials 失效
    连续生产热塑性成型材料的方法

    公开(公告)号:US06399703B1

    公开(公告)日:2002-06-04

    申请号:US09582879

    申请日:2000-07-06

    IPC分类号: C08F29700

    摘要: A process for preparing impact-modified styrene polymers (HIPS) omprises anionic polymerization of styrene in the presence of a rubber in one or more polymerization reactors in succession. The rubber is prepared in solution in an immediately upstream process. The heat of polymerization is utilized to remove the solvent for the rubber, this solvent having a boiling point lower than those of styrene and ethylbenzene, from at least one of the polymerization reactors via distillation with distillative cooling, and the solvent is reintroduced into the process of rubber preparation.

    摘要翻译: 制备冲击改性苯乙烯聚合物(HIPS)的方法在连续的一个或多个聚合反应器中在橡胶存在下进行苯乙烯的阴离子聚合。 橡胶在紧密上游过程中在溶液中制备。 使用聚合热来除去溶剂,该溶剂的沸点低于苯乙烯和乙苯的溶剂,来自至少一个聚合反应器通过蒸馏蒸馏冷却,并将溶剂重新引入该方法 的橡胶制剂。