JPS5558202A - Production of swelling high polymer - Google Patents
Production of swelling high polymerInfo
- Publication number
- JPS5558202A JPS5558202A JP13193178A JP13193178A JPS5558202A JP S5558202 A JPS5558202 A JP S5558202A JP 13193178 A JP13193178 A JP 13193178A JP 13193178 A JP13193178 A JP 13193178A JP S5558202 A JPS5558202 A JP S5558202A
- Authority
- JP
- Japan
- Prior art keywords
- high polymer
- crosslinking
- expells
- neutralized
- polymerized
- 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: Acrylic acid is neutralized with an alkali or ammonium in an amount less than the equevalent and polymerized at a specific temperature, heat treated, thus producing title crosslinking high polymer that absorbs and expells water in high level and can be used for food and medcal materials.
CONSTITUTION: Acrylic acid is neutralized with an alkali or ammonium or their combination in an amount less than the equivalent, polymerized at a temperature lower than 100°C and heat treated at a temperature higher than 106°C. The heat treatment causes the crosslinking by the unneutralized carboxyl groups to procuce said insoluble and swelling high polymr. The resulting swelling high polymer reversibly absorbs and expells water in high level and requires no crosslinking agent, thereby it can be employed in various kinds of application as food, medical and hygienic application or plant cultivation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13193178A JPS5558202A (en) | 1978-10-25 | 1978-10-25 | Production of swelling high polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13193178A JPS5558202A (en) | 1978-10-25 | 1978-10-25 | Production of swelling high polymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5558202A true JPS5558202A (en) | 1980-04-30 |
JPS6234042B2 JPS6234042B2 (en) | 1987-07-24 |
Family
ID=15069549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13193178A Granted JPS5558202A (en) | 1978-10-25 | 1978-10-25 | Production of swelling high polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5558202A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52127993A (en) * | 1976-04-19 | 1977-10-27 | Nippon Jiyunyaku Kk | Preparation of water soluble polycarbonic acid salt |
-
1978
- 1978-10-25 JP JP13193178A patent/JPS5558202A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52127993A (en) * | 1976-04-19 | 1977-10-27 | Nippon Jiyunyaku Kk | Preparation of water soluble polycarbonic acid salt |
Also Published As
Publication number | Publication date |
---|---|
JPS6234042B2 (en) | 1987-07-24 |
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