JPS56141308A - Preparation of reactive self-crosslinking hydrogel - Google Patents
Preparation of reactive self-crosslinking hydrogelInfo
- Publication number
- JPS56141308A JPS56141308A JP4526480A JP4526480A JPS56141308A JP S56141308 A JPS56141308 A JP S56141308A JP 4526480 A JP4526480 A JP 4526480A JP 4526480 A JP4526480 A JP 4526480A JP S56141308 A JPS56141308 A JP S56141308A
- Authority
- JP
- Japan
- Prior art keywords
- acrylate
- aqueous solution
- meth
- alkali metal
- hydrocarbon
- 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
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To prepare the titled hydrogel having high water-absorbing capacity and useful as a water-absorbing material, by suspending an aqueous solution of monomers containing a specific amount of an OH-containing (meth)acrylate in a hydrocarbon in the presence of a specific surface active agent, and carrying out the polymerization.
CONSTITUTION: A≥20wt% aqueous solution of (A) an alkali metal acrylate and (B) acrylic acid is suspended in an aromatic hydrocarbon or an aliphatic hydrocarbon in the presence of (C) 1.0W90wt%, based on (A)+(B), of an OH-containing alkyl (meth)acrylate (e.g. 2-hydroxyethyl methacrylate) using a W/O type surface active agent having an HLB value of 3W6 (e.g. sorbitan monostearate), and polymerized in the absence of a crosslinking agent using a radical polymerization initiator.
EFFECT: A low concentration (≥20wt%) aqueous solution of alkali metal acrylate can be used as it is, and an oil-soluble radical polymerization initiator can also be used.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4526480A JPS56141308A (en) | 1980-04-08 | 1980-04-08 | Preparation of reactive self-crosslinking hydrogel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4526480A JPS56141308A (en) | 1980-04-08 | 1980-04-08 | Preparation of reactive self-crosslinking hydrogel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56141308A true JPS56141308A (en) | 1981-11-05 |
JPS646213B2 JPS646213B2 (en) | 1989-02-02 |
Family
ID=12714431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4526480A Granted JPS56141308A (en) | 1980-04-08 | 1980-04-08 | Preparation of reactive self-crosslinking hydrogel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56141308A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0268498A2 (en) * | 1986-11-20 | 1988-05-25 | Ciba Specialty Chemicals Water Treatments Limited | Absorbent products and their manufacture |
EP0323243A2 (en) * | 1987-12-28 | 1989-07-05 | Nippon Shokubai Co., Ltd. | Hydrophilic polymer and method for production thereof |
US6565981B1 (en) | 1999-03-30 | 2003-05-20 | Stockhausen Gmbh & Co. Kg | Polymers that are cross-linkable to form superabsorbent polymers |
-
1980
- 1980-04-08 JP JP4526480A patent/JPS56141308A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0268498A2 (en) * | 1986-11-20 | 1988-05-25 | Ciba Specialty Chemicals Water Treatments Limited | Absorbent products and their manufacture |
US4962172A (en) * | 1986-11-20 | 1990-10-09 | Allied Colloids Ltd. | Absorbent products and their manufacture |
EP0323243A2 (en) * | 1987-12-28 | 1989-07-05 | Nippon Shokubai Co., Ltd. | Hydrophilic polymer and method for production thereof |
US5073612A (en) * | 1987-12-28 | 1991-12-17 | Nippon Shokubai Kagaku Kogyo, Co., Ltd. | Hydrophilic polymer and method for production thereof |
US6565981B1 (en) | 1999-03-30 | 2003-05-20 | Stockhausen Gmbh & Co. Kg | Polymers that are cross-linkable to form superabsorbent polymers |
Also Published As
Publication number | Publication date |
---|---|
JPS646213B2 (en) | 1989-02-02 |
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