JPS57192416A - Production of hydrogel - Google Patents
Production of hydrogelInfo
- Publication number
- JPS57192416A JPS57192416A JP7701981A JP7701981A JPS57192416A JP S57192416 A JPS57192416 A JP S57192416A JP 7701981 A JP7701981 A JP 7701981A JP 7701981 A JP7701981 A JP 7701981A JP S57192416 A JPS57192416 A JP S57192416A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogel
- surfactant
- pref
- unsaturated carboxylic
- suspension polymerization
- 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)
- Processes Of Treating Macromolecular Substances (AREA)
- Colloid Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To produce a particulate product without problem of tackiness directly from a hydrogel prepared by a W/O type reversed phase suspension polymerization of a material containing an α,β-unsaturated carboxylic monomer, etc., by employing a specified surfactant.
CONSTITUTION: In separating a hydrogel prepared by a W/O type reversed phase suspension polymerization of an α,β-unsaturated carboxylic acid monomer or its alkali metal salt from an organic solvent, use is made of, as a tack eliminator, a nonionic surfactant, HLB≤2.8, pref. 2.5W0.8 (e.g., sorbitan trioleate). Its amount of addition is above 0.05wt%, pref., 0.1W50wt%, based on hydrogel. In some cases, said surfactant is used in combination with a hydrocarbon oil or fat and oil. The use of this surfactant can eliminates fusion of hydrogel particles in the drying step and, therefore, it becomes possible to obtain products economically because of no need for grinding.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7701981A JPS57192416A (en) | 1981-05-20 | 1981-05-20 | Production of hydrogel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7701981A JPS57192416A (en) | 1981-05-20 | 1981-05-20 | Production of hydrogel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57192416A true JPS57192416A (en) | 1982-11-26 |
JPH0113490B2 JPH0113490B2 (en) | 1989-03-07 |
Family
ID=13622040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7701981A Granted JPS57192416A (en) | 1981-05-20 | 1981-05-20 | Production of hydrogel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57192416A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60181108A (en) * | 1984-02-01 | 1985-09-14 | アライド コロイズ リミテイド | Polymer tackifier and manufacture |
JP2002097220A (en) * | 2000-09-27 | 2002-04-02 | Sumitomo Seika Chem Co Ltd | Method for producing water-absorbent resin |
JPWO2015146603A1 (en) * | 2014-03-26 | 2017-04-13 | 住友精化株式会社 | Method for producing water absorbent resin particles |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161408A (en) * | 1980-05-19 | 1981-12-11 | Kao Corp | Production of water-absorbing resin |
-
1981
- 1981-05-20 JP JP7701981A patent/JPS57192416A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161408A (en) * | 1980-05-19 | 1981-12-11 | Kao Corp | Production of water-absorbing resin |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60181108A (en) * | 1984-02-01 | 1985-09-14 | アライド コロイズ リミテイド | Polymer tackifier and manufacture |
JP2002097220A (en) * | 2000-09-27 | 2002-04-02 | Sumitomo Seika Chem Co Ltd | Method for producing water-absorbent resin |
JPWO2015146603A1 (en) * | 2014-03-26 | 2017-04-13 | 住友精化株式会社 | Method for producing water absorbent resin particles |
US9745392B2 (en) | 2014-03-26 | 2017-08-29 | Sumitomo Seika Chemicals Co., Ltd. | Method for producing water-absorbent resin particle |
EP3124502A4 (en) * | 2014-03-26 | 2018-01-03 | Sumitomo Seika Chemicals CO. LTD. | Method for producing water-absorbing resin particle |
Also Published As
Publication number | Publication date |
---|---|
JPH0113490B2 (en) | 1989-03-07 |
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