Title:
MODIFIED VINYL-ALCOHOL-BASED POLYMER
Document Type and Number:
WIPO Patent Application WO/2021/210555
Kind Code:
A1
Abstract:
This modified vinyl-alcohol-based polymer is represented by the following formula (I), wherein the contents, a (mol%), b (mol%), and c (mol%), of the respective monomer units with respect to all the monomer units satisfy the following relationships (1)-(3). Such modified vinyl-alcohol-based polymer is excellent in terms of barrier property, water solubility, and melt shapability. Coating materials including said modified vinyl-alcohol-based polymer bring about excellent production efficiency when applied and can form films retaining high water-vapor barrier properties. (1) 10≤a≤20 (2) 1≤c≤15 (3) [100-(a+c)]×0.9≤b≤[100-(a+c)] [In formula (I), X, Y, and Z each independently represent a hydrogen atom, a formyl group, or an alkanoyl group having 2-10 carbon atoms.]
Inventors:
KONISHI HIROYUKI (JP)
SHIMIZU YUKI (JP)
KOBAYASHI SAWAKO (JP)
WATAJIMA AKIHISA (JP)
SHIMIZU YUKI (JP)
KOBAYASHI SAWAKO (JP)
WATAJIMA AKIHISA (JP)
Application Number:
PCT/JP2021/015246
Publication Date:
October 21, 2021
Filing Date:
April 13, 2021
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
B32B27/28; C08F216/06; B65D65/40; C08F8/12; C08J5/18; C08J7/048; C08K5/098; C08L29/04; C09D129/04
Domestic Patent References:
| WO2014024912A1 | 2014-02-13 | |||
| WO2018124295A1 | 2018-07-05 |
Foreign References:
| JP2015034262A | 2015-02-19 | |||
| JP2019182947A | 2019-10-24 | |||
| JP2007261074A | 2007-10-11 | |||
| JP2007261075A | 2007-10-11 | |||
| JP2019019183A | 2019-02-07 |
Attorney, Agent or Firm:
SETOUCHI INTERNATIONAL PATENT FIRM (JP)
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