JPS54143496A - Preparation of polymer material having excellent water absorption properties - Google Patents
Preparation of polymer material having excellent water absorption propertiesInfo
- Publication number
- JPS54143496A JPS54143496A JP5244378A JP5244378A JPS54143496A JP S54143496 A JPS54143496 A JP S54143496A JP 5244378 A JP5244378 A JP 5244378A JP 5244378 A JP5244378 A JP 5244378A JP S54143496 A JPS54143496 A JP S54143496A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- preparation
- polymer material
- water absorption
- excellent water
- 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
Abstract
PURPOSE: To prepare a polymer useful as medical materials, etc., scarcely putrefying, having an increased water absorbing capacity, by reacting a polyvinyl alcohol- type polymer with a cyclic acid anhydride and further with a specific monovalent metallic compound under conditions.
CONSTITUTION: (A) A polyvinyl alcohol-type polymer is reacted with (B) a cyclic acid anhydride, e.g. maleic anhydride, under such conditions as to give a modified polymer having a crosslinked structure. The polymer is treated with (C) a hydroxide, an alkoxide or a salt of a monovalent metal, e.g. Na, or K, to give the desired polymer.
EFFECT: The polymer has a water absorbing capacity of 50W500 times as large as its own weight.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5244378A JPS54143496A (en) | 1978-04-28 | 1978-04-28 | Preparation of polymer material having excellent water absorption properties |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5244378A JPS54143496A (en) | 1978-04-28 | 1978-04-28 | Preparation of polymer material having excellent water absorption properties |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54143496A true JPS54143496A (en) | 1979-11-08 |
JPS626562B2 JPS626562B2 (en) | 1987-02-12 |
Family
ID=12914868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5244378A Granted JPS54143496A (en) | 1978-04-28 | 1978-04-28 | Preparation of polymer material having excellent water absorption properties |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54143496A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4598122A (en) * | 1985-01-22 | 1986-07-01 | Ciba-Geigy Corporation | Polyoxirane crosslinked polyvinyl alcohol hydrogel contact lens |
-
1978
- 1978-04-28 JP JP5244378A patent/JPS54143496A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4598122A (en) * | 1985-01-22 | 1986-07-01 | Ciba-Geigy Corporation | Polyoxirane crosslinked polyvinyl alcohol hydrogel contact lens |
Also Published As
Publication number | Publication date |
---|---|
JPS626562B2 (en) | 1987-02-12 |
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