公开(公告)号：US4081497A

公开(公告)日：1978-03-28

申请号：US703475

申请日：1976-07-08

申请人： Ichiro Tokumitsu ,  Hideo Konuma ,  Shigeaki Mochizuki ,  Yoshio Okada ,  Hiroshi Yasumoto ,  Isao Yoshihiro

发明人： Ichiro Tokumitsu ,  Hideo Konuma ,  Shigeaki Mochizuki ,  Yoshio Okada ,  Hiroshi Yasumoto ,  Isao Yoshihiro

IPC分类号： C08F291/00 ,  C08F291/02 ,  C08L9/06

CPC分类号： C08F291/02

摘要： In the method for producing a high impact polystyrene from a monomer of styrene or/and its derivative and a rubbery polymer as reactants, an improvement is provided which comprises passing said reactants through a tubular reactor having parts where the passage way of flow of said reactants is constricted, while keeping said reactants in a laminar flow as much as possible in the parts other than said parts, in a first stage polymerization to prepare a reacted mixture containing a prepolymer until the conversion of monomer to polymer becomes 10 to 60%, and subjecting the resulting reacted mixture to a second stage polymerization in the state where almost no shearing is exerted thereupon.The shearing during said first stage polymerization can be uniformly carried out.The resulting product has superior high impact properties.

摘要翻译： 在由苯乙烯或其衍生物的单体和橡胶状聚合物作为反应物制备高抗冲聚苯乙烯的方法中，提供了改进，其包括使所述反应物通过管式反应器，所述管式反应器具有其中所述反应物的通过流动方式 在第一阶段进行聚合以制备含有预聚物的反应混合物，直到单体向聚合物的转化率变为10〜60％为止，同时将所述反应物尽可能多地保持在层流中，同时， 在几乎不施加剪切的状态下，使所得到的反应混合物进行第二阶段聚合。