JPS56161413A - Production of self-crosslinking water-absorbing resin - Google Patents
Production of self-crosslinking water-absorbing resinInfo
- Publication number
- JPS56161413A JPS56161413A JP6626380A JP6626380A JPS56161413A JP S56161413 A JPS56161413 A JP S56161413A JP 6626380 A JP6626380 A JP 6626380A JP 6626380 A JP6626380 A JP 6626380A JP S56161413 A JPS56161413 A JP S56161413A
- Authority
- JP
- Japan
- Prior art keywords
- water
- component
- formula
- absence
- crosslinking agent
- 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.)
- Pending
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To obtain titled resin having a high rate of water absorption and being useful as a dewatering material, a material for sanitary articles, by copolymerizing an acrylic acid with a specified hydroxyacrylate at a high monomer concentration in the absence of a crosslinking agent by using a water-soluble radical polymerization initiator.
CONSTITUTION: A component (A) of formula I, wherein R is H or CH3 and R' is H, an alkali metal or NH4 and a component (B) of formula II, wherein R is the same as above, X is a C2W10 linear or branched alkylene or a group of formula III, and n is 2W3, in a form of an aqueous solution having a ratio, A/B, of 95/5W50/50 (component A is calculated as an acid) and a total monomer concentration of component A and B of 35wt% or higher, are copolymerized in the absence of a crosslinking agent by using a water-soluble radical polymerization initiator. It is possible to produce a highly water-absorbing, high-water absorption rate polymer which can be used not only as a conventional water-retaining material but also as a dewatering material used to remove water from an oil-water mixture. When it is used in paper diapers, the diapers can be used without leakage or wet feel.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6626380A JPS56161413A (en) | 1980-05-19 | 1980-05-19 | Production of self-crosslinking water-absorbing resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6626380A JPS56161413A (en) | 1980-05-19 | 1980-05-19 | Production of self-crosslinking water-absorbing resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56161413A true JPS56161413A (en) | 1981-12-11 |
Family
ID=13310784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6626380A Pending JPS56161413A (en) | 1980-05-19 | 1980-05-19 | Production of self-crosslinking water-absorbing resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56161413A (en) |
Cited By (6)
| 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 |
| US5280079A (en) * | 1986-11-20 | 1994-01-18 | Allied Colloids Limited | Absorbent products and their manufacture |
| US6565981B1 (en) | 1999-03-30 | 2003-05-20 | Stockhausen Gmbh & Co. Kg | Polymers that are cross-linkable to form superabsorbent polymers |
| WO2016020599A1 (en) | 2014-08-08 | 2016-02-11 | S.P.C.M. Sa | Water-soluble hydroxyalkyl polymer obtained by a method of inverse suspension or inverse emulsion polymerisation |
| WO2023242077A1 (en) | 2022-06-14 | 2023-12-21 | Basf Se | Method of making water-soluble polymers for use as shale encapsulators for drilling fluids |
-
1980
- 1980-05-19 JP JP6626380A patent/JPS56161413A/en active Pending
Cited By (12)
| 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 |
| US5280079A (en) * | 1986-11-20 | 1994-01-18 | Allied Colloids Limited | Absorbent products and their manufacture |
| JPH09136974A (en) * | 1986-11-20 | 1997-05-27 | Allied Colloids Ltd | Water-absorbing water-insoluble polymer article |
| 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 |
| WO2016020599A1 (en) | 2014-08-08 | 2016-02-11 | S.P.C.M. Sa | Water-soluble hydroxyalkyl polymer obtained by a method of inverse suspension or inverse emulsion polymerisation |
| FR3024732A1 (en) * | 2014-08-08 | 2016-02-12 | Snf Sas | HYDROSOLUBLE HYDROXYALKYL POLYMER OBTAINED BY INVERSE SUSPENSION POLYMERIZATION PROCESS OR REVERSE EMULSION |
| CN106573997A (en) * | 2014-08-08 | 2017-04-19 | S.P.C.M.股份公司 | Water-soluble hydroxyalkyl polymer obtained by a method of inverse suspension or inverse emulsion polymerisation |
| US10000597B2 (en) | 2014-08-08 | 2018-06-19 | S.P.C.M. Sa | Water-soluble hydroxyalkyl polymer obtained by a method of inverse suspension or inverse emulsion polymerisation |
| WO2023242077A1 (en) | 2022-06-14 | 2023-12-21 | Basf Se | Method of making water-soluble polymers for use as shale encapsulators for drilling fluids |
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