Title:
IMPROVED METHOD FOR PRODUCING HYDROXY GROUP-CONTAINING VINYL ETHER POLYMER
Document Type and Number:
WIPO Patent Application WO/2017/006817
Kind Code:
A1
Abstract:
[Problem] To provide a simple and efficient method for producing a hydroxy group-containing vinyl ether polymer, which does not require a step for removing low-boiling-point impurities such as residual monomers and initiator residues, polyacetals and the like by suppressing the production of polyacetals by improving the monomer conversion rate, while reducing the amount of a polymerization initiator used therefor.
[Solution] A vinyl ether having a hydroxy group represented by formula (2) is radically polymerized in the presence of water, which serves as a polymerization solvent, and an azo compound represented by formula (1), which serves as a polymerization initiator.
(In formula (1), each of R1-R4 independently represents a hydrogen atom or an alkyl group; and each of R5 and R6 independently represents an optionally substituted alkoxy group or an optionally substituted alkylamino group.)
(In formula (2), R7 represents a linear, branched or alicyclic structure-containing alkylene group; and p represents 1, 2 or 3.)
Inventors:
SUGIHARA SHINJI (JP)
YOSHIDA NORIHIRO (JP)
YOSHIDA NORIHIRO (JP)
Application Number:
PCT/JP2016/069214
Publication Date:
January 12, 2017
Filing Date:
June 29, 2016
Export Citation:
Assignee:
MARUZEN PETROCHEM CO LTD (JP)
International Classes:
C08F16/26; C08F4/04; C08K3/18; C08L29/10; C09D11/00; C09D129/10; C09J129/10
Foreign References:
| JP2013166829A | 2013-08-29 | |||
| JP2012229346A | 2012-11-22 | |||
| JP2011021141A | 2011-02-03 | |||
| JPH06511021A | 1994-12-08 | |||
| JP2008303315A | 2008-12-18 |
Other References:
See also references of EP 3318583A4
Attorney, Agent or Firm:
NAGAI Hiroshi et al. (JP)
Download PDF: