Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DISPERSION STABILIZER FOR VINYL COMPOUND SUSPENSION POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2008/015739
Kind Code:
A1
Abstract:
A dispersion stabilizer for vinyl compound suspension polymerization with which due to excellence in dispersion stability at polymerization, there can be obtained vinyl chloride polymer particles with sharp particle size distribution and high bulk density, and with which there can be produced vinyl chloride polymer particles being less in wet foam ratio, being resistant to formation of foamy polymer or polymer scale attributed to dry foam, further being less in staining and excelling in heat resistance. There is provided a dispersion stabilizer comprised of a PVA resin of 65 to 87 mol% saponification degree having a 1,2-diol component in its side chain.

Inventors:
SHIBUTANI MITSUO
SAITO MASAHIRO
Application Number:
PCT/JP2006/315227
Publication Date:
February 07, 2008
Filing Date:
August 01, 2006
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON SYNTHETIC CHEM IND (JP)
SHIBUTANI MITSUO
SAITO MASAHIRO
International Classes:
C08F216/06; C08F2/20; C08L29/04
Domestic Patent References:
WO2006018870A12006-02-23
WO2000024702A12000-05-04
Foreign References:
JP2006241448A2006-09-14
JP2002284818A2002-10-03
JP2002241433A2002-08-28
JP2004285143A2004-10-14
JPH08283313A1996-10-29
JP2004189888A2004-07-08
JP2004189889A2004-07-08
JP2001233905A2001-08-28
JPH10212264A1998-08-11
JP2005026793A2005-01-27
JP2006025219A2006-01-26
Other References:
See also references of EP 2058342A4
KOUBUNSHI KAGAKU, vol. 15, no. 156, 1958, pages 249 - 254
Attorney, Agent or Firm:
NAITO, Teruo (7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 12, JP)
Download PDF: