Title:
POLYVINYL ALCOHOL-BASED RESIN, METHOD FOR PRODUCING POLYVINYL ALCOHOL-BASED RESIN, DISPERSING AGENT, AND DISPERSING AGENT FOR SUSPENSION POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2020/184397
Kind Code:
A1
Abstract:
The present invention relates to a polyvinyl alcohol-based resin in which, in an ultraviolet absorption spectrum when the polyvinyl alcohol-based resin is made into a 0.1 wt% aqueous solution, the absorbance (X) at a wavelength of 320 nm is at least 0.3, and the ratio (Y/X) of the absorbance (Y) at a wavelength of 380 nm to the absorbance (X) at a wavelength of 320 nm is at least 0.09.
Inventors:
FUKUDA JUNKI (JP)
YAMAUCHI YOSHIHITO (JP)
YAMAUCHI YOSHIHITO (JP)
Application Number:
PCT/JP2020/009519
Publication Date:
September 17, 2020
Filing Date:
March 05, 2020
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C08F8/12; C08F16/06; C08F18/08
Domestic Patent References:
| WO2018117245A1 | 2018-06-28 | |||
| WO2018212207A1 | 2018-11-22 |
Foreign References:
| JP2004250695A | 2004-09-09 | |||
| JPH08269112A | 1996-10-15 | |||
| JPH08283313A | 1996-10-29 | |||
| JP2004250695A | 2004-09-09 | |||
| JP2019043117A | 2019-03-22 |
Other References:
KIYOKAZU IMAIYUJIRO KAZUSA, POLYMER CHEMISTRY, vol. 15, no. 156, 1958, pages 249 - 254
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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