公开(公告)号：US09481740B2

公开(公告)日：2016-11-01

申请号：US14639323

申请日：2015-03-05

Applicant: FINA TECHNOLOGY, INC.

Inventor： Likuo Sun ,  Jose Sosa ,  Serge Eon ,  Carlos Corleto ,  Scott Cooper

IPC: C08F2/00 ,  C08F279/02 ,  C08F212/08 ,  C08L9/06

CPC classification number: C08F2/001 ,  C08F212/08 ,  C08F279/02 ,  C08L9/06 ,  C08L2555/84

Abstract: A process for producing high impact polystyrene including feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture. Polymerizing the reaction mixture in the first linear flow reactor to a point below the point at which phase inversion occurs to produce a first polymerization mixture and feeding the first polymerization mixture from the first linear flow reactor to a second linear flow reactor. Polymerizing the reaction mixture in the second linear flow reactor to at least a phase inversion point of the mixture to produce a second polymerization mixture and feeding the second polymerization mixture from the second linear flow reactor to at least a third linear flow reactor for post-inversion polymerization of the second polymerization mixture. The product stream can have an ESCR value of at least 10% toughness retained with less than 10 wt % rubber content.

公开(公告)号：US20150175783A1

公开(公告)日：2015-06-25

申请号：US14639323

申请日：2015-03-05

Applicant: FINA TECHNOLOGY, INC.

Inventor： Likuo Sun ,  Jose Sosa ,  Serge Eon ,  Carlos Corleto ,  Scott Cooper

IPC: C08L9/06

CPC classification number: C08F2/001 ,  C08F212/08 ,  C08F279/02 ,  C08L9/06 ,  C08L2555/84

Abstract: A process for producing high impact polystyrene including feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture. Polymerizing the reaction mixture in the first linear flow reactor to a point below the point at which phase inversion occurs to produce a first polymerization mixture and feeding the first polymerization mixture from the first linear flow reactor to a second linear flow reactor. Polymerizing the reaction mixture in the second linear flow reactor to at least a phase inversion point of the mixture to produce a second polymerization mixture and feeding the second polymerization mixture from the second linear flow reactor to at least a third linear flow reactor for post-inversion polymerization of the second polymerization mixture. The product stream can have an ESCR value of at least 10% toughness retained with less than 10 wt % rubber content.

Abstract translation: 一种生产高抗冲聚苯乙烯的方法，包括将至少一种乙烯基芳族单体，弹性体和自由基引发剂进料至第一线性流动反应器以形成反应混合物。 将第一线性流动反应器中的反应混合物聚合到低于发生相转移点的点以产生第一聚合混合物并将第一聚合混合物从第一线性流动反应器进料到第二线性流动反应器。 将第二线性流动反应器中的反应混合物聚合到混合物的至少相转变点，以产生第二聚合混合物，并将第二聚合混合物从第二线性流动反应器进料到至少第三线性流动反应器用于后反转 第二聚合混合物的聚合。 产品流的ESCR值可以保持至少10％的韧性，橡胶含量小于10wt％。