公开(公告)号：US06353088B1

公开(公告)日：2002-03-05

申请号：US09646574

申请日：2000-09-19

申请人： Toshihisa Fujitaka ,  Koji Hirashima ,  Hideki Ono ,  Keiichi Hayashi

发明人： Toshihisa Fujitaka ,  Koji Hirashima ,  Hideki Ono ,  Keiichi Hayashi

IPC分类号： C08F600

CPC分类号： C08F6/003

摘要： This invention relates to a method for removing unreacted monomers and other volatile matters from a polymer solution composition produced from a mixture containing an aromatic vinyl monomer, utilizes two or more flash devolatilizing vessels, and effects the removal by adjusting the solid content of the polymer solution composition at the outlet of the devolitilizer before the last-stage devolitilizer to a level in excess of 97%, adding 0.5-4 parts by weight of a foaming agent to the total polymer solution composition, passing the polymer solution composition through the last-stage devolitilizer while maintaining the pressure of the polymer solution at 10 kg/cm2 or more by means of a pressure controller and the temperature in the range 190-260° C., introducing the polymer solution composition to a vapor-liquid separation vessel maintained at a vacuum of 20 Torr or less, and allowing the composition to foam.

摘要翻译： 本发明涉及从由含有芳香族乙烯基单体的混合物制备的聚合物溶液组合物中除去未反应的单体和其它挥发物的方法，利用两个或更多个闪蒸脱挥发容器，并通过调节聚合物溶液的固体含量 在最后阶段脱挥发酵剂之前的脱挥发剂的出口处的组成达到超过97％的水平，向总的聚合物溶液组合物中加入0.5-4重量份的发泡剂，使聚合物溶液组合物通过最后阶段 通过压力控制器和190-260℃的温度将聚合物溶液的压力保持在10kg / cm 2或更高的压力下，将聚合物溶液组合物引入保持在 真空度为20托或更低，并使组合物发泡。

公开(公告)号：US5349012A

公开(公告)日：1994-09-20

申请号：US82506

申请日：1993-06-25

申请人： Toshio Fujita ,  Masanari Fujita ,  Naoto Takeda ,  Koji Hirashima

发明人： Toshio Fujita ,  Masanari Fujita ,  Naoto Takeda ,  Koji Hirashima

IPC分类号： C08F279/02 ,  C08F279/00 ,  C08F291/02 ,  C08F279/021

CPC分类号： C08F279/02 ,  C08F291/02 ,  Y02P20/143

摘要： Rubber-modified styrene resins with excellent impact resistance are prepared by formulating a feed from a styrene-based monomer, or a mixture thereof with comonomers and high-viscosity rubber, an organic peroxide, and, if necessary, all inert organic solvent, preheating and continuously supplying the feed to one end of a plug flow type reactor equipped with an agitator, performing the preliminary polymerization to a conversion sufficiently high for the transformation of the rubber in the feed into particles while controlling the weight average particle diameter of the rubber particles to 0.8 to 5 .mu.m, withdrawing the prepolymerized feed from the other end of the reactor, and supplying it to a following plug flow type reactor for continuous enhancement of tile conversion.

摘要翻译： 通过配制来自苯乙烯基单体或其与共聚单体和高粘度橡胶，有机过氧化物的混合物以及如果需要的话，将所有惰性有机溶剂预热和加热，制备具有优异耐冲击性的橡胶改性苯乙烯树脂 将进料连续地供给到装有搅拌器的活塞式流动反应器的一端，进行预聚合，以足够高的转化率将进料中的橡胶转化成颗粒，同时将橡胶颗粒的重均粒径控制在 从反应器的另一端取出预聚合的原料，并将其供给到用于连续地提高瓦片转化率的随后的活塞流式反应器中。