Title:
ビニル系重合体の製造方法
Document Type and Number:
Japanese Patent JP5231012
Kind Code:
B2
Abstract:
The present invention has its object to provide a process for producing a vinyl polymer which can provide a vinyl polymer in such form that a polymerization catalyst is effectively removed from that. The present invention relates to a process for producing a vinyl polymer wherein a vinyl polymer at the time of completion of the polymerization is treated with oxygen in the presence of a polar solvent. More preferably, the present invention relates to a process for bringing a polymer added with a polar solvent having a relative dielectric constant at 20°C of not lower than 10 into contact with mixed gases of oxygen and an inert gas such as nitrogen with an oxygen concentration below the explosion limit oxygen concentration of this solvent as in the state of occurrence as a pure component.
Inventors:
Yousuke Asai
Nao Fujita
Nao Fujita
Application Number:
JP2007506030A
Publication Date:
July 10, 2013
Filing Date:
March 03, 2006
Export Citation:
Assignee:
Kaneka Corporation
International Classes:
C08F6/08
Domestic Patent References:
| JP2001233914A | 2001-08-28 | |||
| JP2003327620A | 2003-11-19 | |||
| JP2004500448A | 2004-01-08 | |||
| JPS5134980A | 1976-03-25 |
Foreign References:
| WO2003033546A1 | 2003-04-24 |
Attorney, Agent or Firm:
Atomi International Patent Office
Yasuo Yasutomi
Fumio Akiyama
Yasuo Yasutomi
Fumio Akiyama