Title:
ポリビニルアルコール組成物及びその用途、並びにビニル系樹脂の製造方法
Document Type and Number:
Japanese Patent JP7316264
Kind Code:
B2
Abstract:
A composition (D) comprising: modified polyvinyl alcohol (A); and unsaturated monocarboxylic acid or a salt thereof (B), wherein the modified polyvinyl alcohol (A) has a viscosity-average degree of polymerization of 400 or more and 3500 or less, has a degree of saponification of 68 mol% or more and 99.9 mol% or less, and contains 0.01 mol% or more and 1.50 mol% or less of an acryloyl group or a methacryloyl group in a side chain, the unsaturated monocarboxylic acid or a salt thereof (B) is at least one selected from the group consisting of acrylic acid, methacrylic acid, sodium acrylate, and sodium methacrylate, and in the composition (D), a mass ratio of the modified polyvinyl alcohol (A) / the unsaturated monocarboxylic acid or a salt thereof (B) is from 82/18 to 99.9/0.1. The composition is thus provided that is excellent in water solubility and storage stability and polymerization stability of a vinyl compound and contains the modified polyvinyl alcohol (A).
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Inventors:
Tadahito Fukuhara
Application Number:
JP2020513429A
Publication Date:
July 27, 2023
Filing Date:
April 10, 2019
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C08F2/20; C08F2/38; C08F14/06; C08F290/12; C08L29/04; C09K23/52
Domestic Patent References:
| JP2007321099A | ||||
| JP60013803A |
Foreign References:
| WO2007119735A1 |
Attorney, Agent or Firm:
Setouchi International Patent Office
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