Title:
VINYL ALCOHOL-BASED POLYMER, POWDER CONTAINING SAME, METHOD FOR PRODUCING POWDER, COATING AGENT, COATED PRODUCT, METHOD FOR PRODUCING COATED PRODUCT, STABILIZER FOR EMULSION POLYMERIZATION, AQUEOUS EMULSION, AND ADHESIVE AGENT
Document Type and Number:
WIPO Patent Application WO/2022/230825
Kind Code:
A1
Abstract:
Provided is a vinyl alcohol-based polymer (PVA) that contains structural units derived from at least one type selected from the group consisting of carboxyl group-containing monomers and derivatives thereof. The minimum degree of branching is 0.93 or less within an absolute molecular weight range of 200,000-800,000. When 4 parts by mass of the PVA is added to 96 parts by mass of water and stirred for 1 hour at 60ºC, the amount of insoluble components is not less than 0.1 ppm and less than 2000 ppm.
Inventors:
FUJIMORI MISUZU (JP)
TAOKA YUTA (JP)
JIKIHARA ATSUSHI (JP)
TAOKA YUTA (JP)
JIKIHARA ATSUSHI (JP)
Application Number:
PCT/JP2022/018771
Publication Date:
November 03, 2022
Filing Date:
April 25, 2022
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
C08F8/12; C08F16/06
Domestic Patent References:
| WO2020009178A1 | 2020-01-09 | |||
| WO2018061272A1 | 2018-04-05 | |||
| WO2018061272A1 | 2018-04-05 |
Foreign References:
| JP2019105008A | 2019-06-27 | |||
| JPH09316272A | 1997-12-09 | |||
| JP2021098802A | 2021-07-01 | |||
| JP2021098801A | 2021-07-01 | |||
| JPH10265754A | 1998-10-06 |
Attorney, Agent or Firm:
AMANO Kazunori (JP)
Download PDF: