公开(公告)号：US20150353669A1

公开(公告)日：2015-12-10

申请号：US14761356

申请日：2014-01-08

申请人： Asahi Kasei Chemicals Corporation

发明人： Yoshifumi Araki ,  Eiji Sasaya ,  Takuya Suzuki

IPC分类号： C08F236/10

CPC分类号： C08F236/10 ,  C08C2/00 ,  C08C19/02 ,  C08F6/06 ,  C08F36/04 ,  C08F297/04 ,  C08L9/00 ,  C08F2/06

摘要： A method for producing a polymer has: a polymerization step of polymerizing at least a conjugated diene monomer in a hydrocarbon solvent using an organolithium compound as a polymerization initiator, and obtaining a polymer; and, following steps (1) to (4), successively performing after the polymerization step: (1) a step of mixing an acid and water of 20 to 300 parts by mass into the solution containing the polymer of 100 parts by mass, (2) a step of adjusting an amount of the water to 10 parts by mass or less based on 100 parts by mass of the solution containing the polymer, (3) a step of adding a carbon oxide gas and/or a compound to be decarboxylated to the solution containing the polymer, and (4) a step of removing a solvent from the solution containing the polymer until a concentration of the polymer reaches 95 mass % or more.

摘要翻译： 聚合物的制造方法具有：使用有机锂化合物作为聚合引发剂，使烃溶剂中的至少共轭二烯单体聚合，得到聚合物的聚合工序; 并且在步骤（1）〜（4）之后，在聚合工序后依次进行以下工序：（1）将含有20〜300质量份的酸与水的混合物混合到含有100质量份聚合物的溶液中， 2）基于100质量份含有聚合物的溶液，将水的量调节为10质量份以下的步骤，（3）添加碳酸氧化物气体和/或待脱羧化合物的工序 涉及含有聚合物的溶液，和（4）从含有聚合物的溶液中除去溶剂直到聚合物的浓度达到95质量％以上的步骤。

公开(公告)号：US09738742B2

公开(公告)日：2017-08-22

申请号：US14761356

申请日：2014-01-08

申请人： Asahi Kasei Chemicals Corporation

发明人： Yoshifumi Araki ,  Eiji Sasaya ,  Takuya Suzuki

IPC分类号： C08F230/10 ,  C08C2/00 ,  C08F36/04 ,  C08F236/10 ,  C08F6/06 ,  C08F297/04

CPC分类号： C08F236/10 ,  C08C2/00 ,  C08C19/02 ,  C08F6/06 ,  C08F36/04 ,  C08F297/04 ,  C08L9/00 ,  C08F2/06

摘要： A method for producing a polymer has: a polymerization step of polymerizing at least a conjugated diene monomer in a hydrocarbon solvent using an organolithium compound as a polymerization initiator, and obtaining a polymer; and, following steps (1) to (4), successively performing after the polymerization step: (1) a step of mixing an acid and water of 20 to 300 parts by mass into the solution containing the polymer of 100 parts by mass, (2) a step of adjusting an amount of the water to 10 parts by mass or less based on 100 parts by mass of the solution containing the polymer, (3) a step of adding a carbon oxide gas and/or a compound to be decarboxylated to the solution containing the polymer, and (4) a step of removing a solvent from the solution containing the polymer until a concentration of the polymer reaches 95 mass % or more.

公开(公告)号：US09862793B2

公开(公告)日：2018-01-09

申请号：US14440776

申请日：2013-05-13

申请人： Asahi Kasei Chemicals Corporation

发明人： Daisuke Shimizu ,  Kenta Shibuya ,  Takuya Suzuki

IPC分类号： C08F6/06 ,  C08F6/08 ,  C08F8/04 ,  C08F299/02 ,  C08F6/00 ,  C08F6/02

CPC分类号： C08F299/02 ,  C08F6/008 ,  C08F6/02 ,  C08F6/06

摘要： The present invention provides a method for producing a polymer by efficiently removing residue of metals such as titanium, aluminum and lithium from a polymer solution containing the residue of these metals to successfully obtain a purified polymer solution containing a smaller amount of the metal residue and having satisfactory color tone and transparency, a polymer solution and a polymer obtained by the production method.