JPS54135891A - Preparation of modified polyvinyl alcohol polymer - Google Patents
Preparation of modified polyvinyl alcohol polymerInfo
- Publication number
- JPS54135891A JPS54135891A JP4441878A JP4441878A JPS54135891A JP S54135891 A JPS54135891 A JP S54135891A JP 4441878 A JP4441878 A JP 4441878A JP 4441878 A JP4441878 A JP 4441878A JP S54135891 A JPS54135891 A JP S54135891A
- Authority
- JP
- Japan
- Prior art keywords
- mole
- polyvinyl alcohol
- group
- less
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To obtain a modified water-soluble polyvinyl alcohol having improved surface activity and high solution viscosity, by introducing a hydrophobic and an ionic groups into a polyvinyl alcohol polymer.
CONSTITUTION: C) Vinyl acetate as a main component is plymerized with A) 0.2W10 mole %, preferably 0.8W7.0 mole % of one or more monomers selected from the group consisting of a vinyl ester of a fatty acid having not less than six carbon atoms and an α-olefin having not less than six carbon atoms as a hydrophobic group donor component and B) 0.2W10 mole %, preferably 0.5W7.0 mole % of one or more monomes selected from the group consisting of an ethylenic unsaturated carboxylic acid, its lower alkyl ester and acid anhydride as an ionic group providing component in the presence of a radical catalyst in an alcohol solvent or without a solvent at 58W65°C to give a copolymer, which is dissolved in a water- containing alcohol and saponified in the presence of an alkali or an acid catalyst at 20W50°C to a saponification value not less than 80%.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4441878A JPS54135891A (en) | 1978-04-13 | 1978-04-13 | Preparation of modified polyvinyl alcohol polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4441878A JPS54135891A (en) | 1978-04-13 | 1978-04-13 | Preparation of modified polyvinyl alcohol polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54135891A true JPS54135891A (en) | 1979-10-22 |
JPS613801B2 JPS613801B2 (en) | 1986-02-04 |
Family
ID=12690937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4441878A Granted JPS54135891A (en) | 1978-04-13 | 1978-04-13 | Preparation of modified polyvinyl alcohol polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54135891A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6144940A (en) * | 1984-08-09 | 1986-03-04 | Kuraray Co Ltd | Polyvinyl alcohol film |
JP2010202840A (en) * | 2009-03-06 | 2010-09-16 | Denki Kagaku Kogyo Kk | Modified polyvinyl alcohol and method for producing the same |
US10005867B2 (en) * | 2005-03-08 | 2018-06-26 | Denki Kagaku Kogyo Kabushiki Kaisha | Modified polyvinyl alcohol and process for producing the same |
-
1978
- 1978-04-13 JP JP4441878A patent/JPS54135891A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6144940A (en) * | 1984-08-09 | 1986-03-04 | Kuraray Co Ltd | Polyvinyl alcohol film |
US10005867B2 (en) * | 2005-03-08 | 2018-06-26 | Denki Kagaku Kogyo Kabushiki Kaisha | Modified polyvinyl alcohol and process for producing the same |
JP2010202840A (en) * | 2009-03-06 | 2010-09-16 | Denki Kagaku Kogyo Kk | Modified polyvinyl alcohol and method for producing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS613801B2 (en) | 1986-02-04 |
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