Title:
MODIFIED VINYL ALCOHOL POLYMER, AND DIFFUSION STABILIZER FOR SUSPENSION POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2018/038112
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a diffusion stabilizer for suspension polymerization satisfying various performance requirements for suspension polymerization of a vinyl compound such as vinyl chloride. This modified vinyl alcohol polymer has a monomer unit represented by general formula (I), and the degree of modification thereof is 0.01-10 mol%. General formula (I): (in the formula, BO represents an oxybutylene unit, EO represents an oxyethylene unit, the numbers of oxyalkylene units thereof forming repeating units are respectively represented by m and n, and 1≤m≤10 and 1≤n≤60 are satisfied.)
Inventors:
WATANABE WATARU (JP)
Application Number:
PCT/JP2017/029975
Publication Date:
March 01, 2018
Filing Date:
August 22, 2017
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C08F290/06; C08F2/20; C08F8/12; C08F218/06; C09K23/42; C09K23/52
Domestic Patent References:
| WO2013115239A1 | 2013-08-08 | |||
| WO2010113569A1 | 2010-10-07 | |||
| WO2013115239A1 | 2013-08-08 |
Foreign References:
| JP2011074096A | 2011-04-14 | |||
| JP2008138014A | 2008-06-19 | |||
| JP2004075870A | 2004-03-11 | |||
| JP2011126931A | 2011-06-30 | |||
| JPH09100301A | 1997-04-15 | |||
| JPH10147604A | 1998-06-02 | |||
| JPH10259213A | 1998-09-29 | |||
| JPH11217413A | 1999-08-10 | |||
| JP2001040019A | 2001-02-13 | |||
| JP2002069105A | 2002-03-08 | |||
| JP2004075870A | 2004-03-11 |
Other References:
See also references of EP 3505546A4
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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