Title:
ポリビニルアルコール
Document Type and Number:
Japanese Patent JP6934469
Kind Code:
B2
Abstract:
A polyvinyl alcohol has a number-average molecular weight (Mn) from 4,400 to 440,000, a molecular weight distribution (Mw/Mn) from 1.05 to 1.70, a degree of saponification from 80 to 99.99 mol%, and a carbon-carbon double bond content (X) of 0.1 mol% or less based on total monomer units, and satisfying a formula (1) below. A polyvinyl alcohol, having a narrow molecular weight distribution and a high number-average molecular weight with good hue, and a method for producing the same are thus provided. X · Mn ¤ 1000
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Inventors:
Yusuke Amano
Takayama Takumi
Kazuhiko Maekawa
Takayama Takumi
Kazuhiko Maekawa
Application Number:
JP2018509470A
Publication Date:
September 15, 2021
Filing Date:
March 30, 2017
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C08F16/06
Domestic Patent References:
| JP2013242341A |
Attorney, Agent or Firm:
Setouchi International Patent Firm