Title:
ビニルアルコール−酢酸ビニル共重合体の製造方法
Document Type and Number:
Japanese Patent JP6447896
Kind Code:
B2
Abstract:
The present invention provides a vinyl alcohol-vinyl acetate copolymer having excellent solubility and a method for producing a vinyl alcohol-vinyl acetate copolymer. Provided is a vinyl alcohol-vinyl acetate copolymer including a unit of vinyl alcohol and a unit of vinyl acetate, the vinyl alcohol-vinyl acetate copolymer having a randomness value R of 0.5 or higher, the randomness value R being obtained using the following equation (1): R = 1 L A + 1 L O where L o represents a mean chain length of the unit of vinyl alcohol and L A represents a mean chain length of the unit of vinyl acetate.
Inventors:
Right hand Koichi
Tomohiro Hirano
Miyuki Oshimura
Yasunari Kusaka
Tomohiro Hirano
Miyuki Oshimura
Yasunari Kusaka
Application Number:
JP2017539679A
Publication Date:
January 09, 2019
Filing Date:
May 08, 2017
Export Citation:
Assignee:
Tokushima University
Sekisui Chemical Co.,Ltd.
Sekisui Chemical Co.,Ltd.
International Classes:
C08F216/38; C08F8/12
Domestic Patent References:
| JP6234899A | ||||
| JP2016047799A |
Other References:
Macromolecules,2014年,47,4790-4804
Polymer Science, Series B,2012年,54,375-382
Polymer Science, Series B,2012年,54,375-382
Attorney, Agent or Firm:
Atomi International Patent Office