Title:
METHOD FOR PRODUCING OXYETHYLENE CHAIN-CONTAINING VINYL ETHER POLYMER BY RADICAL POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2019/044221
Kind Code:
A1
Abstract:
[Problem] To provide a stable and efficient method for producing an oxyethylene chain-containing vinyl ether polymer where decomposition of monomers and formation of polyacetal can be suppressed. [Solution] This method for producing an oxyethylene chain-containing vinyl ether polymer includes a step of polymerizing a vinyl ether represented by formula (1) (where R1 is an alkyl group having 1 to 3 carbon atoms and n is an integer of 1 to 10) at pH 5 or more, in the presence of water as a polymerization solvent, a basic compound as an additive, and an organic azo-based compound as a radical polymerization initiator.
Inventors:
SUGIHARA SHINJI (JP)
ENDO MASAHIRO (JP)
ENDO MASAHIRO (JP)
Application Number:
PCT/JP2018/026759
Publication Date:
March 07, 2019
Filing Date:
July 17, 2018
Export Citation:
Assignee:
MARUZEN PETROCHEM CO LTD (JP)
International Classes:
C08F16/26; C08F2/04; C08F2/10; C08F2/38; C08F4/04
Domestic Patent References:
| WO2013099427A1 | 2013-07-04 |
Foreign References:
| JP2013166829A | 2013-08-29 | |||
| JP2017014438A | 2017-01-19 | |||
| JP2016050266A | 2016-04-11 | |||
| JP2009510175A | 2009-03-12 | |||
| JPS5936184B2 | 1984-09-01 | |||
| JP2017014438A | 2017-01-19 |
Other References:
See also references of EP 3677603A4
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
Download PDF: