Title:
制御されたラジカル重合による高質量の親水性ポリマーの製造
Document Type and Number:
Japanese Patent JP2013538913
Kind Code:
A
Abstract:
The present invention concerns a process for preparing a polymer comprising at least one gel polymerization step (E) in which the following are contacted: ethylenically unsaturated water-soluble monomers, the same or different; a source of free radicals adapted to the polymerization of the said monomers, typically a redox system; and a radical polymerization control agent, preferably comprising a thiocarbonylthio -S(C=S)- group; with a concentration of monomers in the reaction medium of step (E) sufficiently high to cause gelling of the medium if polymerization was conducted without the control agent.
Inventors:
Matthias Destarak
Americ Guinod
Stephane Magier
James Wilson
Americ Guinod
Stephane Magier
James Wilson
Application Number:
JP2013530785A
Publication Date:
October 17, 2013
Filing Date:
September 27, 2011
Export Citation:
Assignee:
RHODIA OPERATIONS
International Classes:
C08F2/40; C08F4/40; C08F20/56
Domestic Patent References:
| JP2008508384A | 2008-03-21 | |||
| JPH1171414A | 1999-03-16 | |||
| JP2008242081A | 2008-10-09 | |||
| JP2005503452A | 2005-02-03 | |||
| JP2003527458A | 2003-09-16 | |||
| JPH05247136A | 1993-09-24 | |||
| JPH07330812A | 1995-12-19 | |||
| JPS6239604A | 1987-02-20 | |||
| JP2006509883A | 2006-03-23 | |||
| JP2008248062A | 2008-10-16 |
Foreign References:
| US20090223645A1 | 2009-09-10 | |||
| WO2006024706A1 | 2006-03-09 | |||
| EP0677537A1 | 1995-10-18 |
Attorney, Agent or Firm:
Axis International Patent Business Corporation