Title:
VINYL ALCOHOL-VINYL ACETATE COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2019/098247
Kind Code:
A1
Abstract:
The present invention provides: a vinyl alcohol-vinyl acetate copolymer which exhibits excellent solubility, and with which a film exhibiting high flexibility, mechanical strength, and adhesiveness can be prepared; and a method for producing the vinyl alcohol-vinyl acetate copolymer. This vinyl alcohol-vinyl acetate copolymer is provided with units comprising a vinyl alcohol and units comprising vinyl acetate, and has a triad unit chain ratio TOO obtained using formula (1) of 7.5 or lower. In formula (1), the VOH content refers to the content of the units comprising the vinyl alcohol, the Vac content refers to the content of the units comprising the vinyl acetate, the OOO content ratio refers to the content ratio of OOO triad chains, and the AOO content ratio refers to the content ratio of AOO triad chains.
Inventors:
UTE KOICHI (JP)
HIRANO TOMOHIRO (JP)
OSHIMURA MIYUKI (JP)
KUSAKA YASUNARI (JP)
NISHIMURA YOHEI (JP)
SENOO MISAKI (JP)
HIRANO TOMOHIRO (JP)
OSHIMURA MIYUKI (JP)
KUSAKA YASUNARI (JP)
NISHIMURA YOHEI (JP)
SENOO MISAKI (JP)
Application Number:
PCT/JP2018/042183
Publication Date:
May 23, 2019
Filing Date:
November 14, 2018
Export Citation:
Assignee:
UNIV TOKUSHIMA (JP)
SEKISUI CHEMICAL CO LTD (JP)
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C08F218/08; C08F216/08
Domestic Patent References:
| WO2015019614A1 | 2015-02-12 | |||
| WO2017195735A1 | 2017-11-16 |
Foreign References:
| JPH02153960A | 1990-06-13 | |||
| JP2001055414A | 2001-02-27 | |||
| JPH06234899A | 1994-08-23 | |||
| JP2016047799A | 2016-04-07 | |||
| JPH0967441A | 1997-03-11 | |||
| JP2004292328A | 2004-10-21 |
Other References:
SENOO MISAKI: "2E14: Monomer sequence analysis of the poly (vinyl alcohol-co-vinyl acetate)s prepared by various polymer reactions", POLYMER PREPRINTS, JAPAN, vol. 65, no. 1, 10 May 2016 (2016-05-10), JP, pages 1 - 2, XP009521210
MISAKI SENOO, SHUHEI OGAWA, MIYUKI OSHIMURA, TOMOBIRO HIRANO, KOICHI UTE: "2D11: Monomer sequence analysis of the poly(vinyl alcohol-co-vinyl acetate)s prepared by various polymer reactions (2)", POLYMER PREPRINTS, JAPAN, vol. 65, no. 2, 24 August 2016 (2016-08-24), JP, pages 1 - 2, XP009521209
ILYIN, SERGEY 0. ET AL.: "Effect of Chain Structure on the Rheological Properties of Vinyl Acetate-Vinyl Alcohol Copolymers in Solution and Bulk", MACROMOLECULES, vol. 47, 2014, pages 4790 - 4804, XP055438160, ISSN: 0024-9297, DOI: 10.1021/ma5003326
DENISOVA, YU. I.: "Chain Statistics in Vinyl Acetate-Vinyl Alcohol Multiblock Copolymers", POLYMER SCIENCE, SERIES B, vol. 54, 2012, pages 375 - 382, XP055581683, ISSN: 1560-0904, DOI: 10.1134/S1560090412070032
MISAKI SENOO, SHUHEI OGAWA, MIYUKI OSHIMURA, TOMOBIRO HIRANO, KOICHI UTE: "2D11: Monomer sequence analysis of the poly(vinyl alcohol-co-vinyl acetate)s prepared by various polymer reactions (2)", POLYMER PREPRINTS, JAPAN, vol. 65, no. 2, 24 August 2016 (2016-08-24), JP, pages 1 - 2, XP009521209
ILYIN, SERGEY 0. ET AL.: "Effect of Chain Structure on the Rheological Properties of Vinyl Acetate-Vinyl Alcohol Copolymers in Solution and Bulk", MACROMOLECULES, vol. 47, 2014, pages 4790 - 4804, XP055438160, ISSN: 0024-9297, DOI: 10.1021/ma5003326
DENISOVA, YU. I.: "Chain Statistics in Vinyl Acetate-Vinyl Alcohol Multiblock Copolymers", POLYMER SCIENCE, SERIES B, vol. 54, 2012, pages 375 - 382, XP055581683, ISSN: 1560-0904, DOI: 10.1134/S1560090412070032
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
Download PDF: