JPS55161813A - Preparation of water-absorbing graft polymer - Google Patents
Preparation of water-absorbing graft polymerInfo
- Publication number
- JPS55161813A JPS55161813A JP7041279A JP7041279A JPS55161813A JP S55161813 A JPS55161813 A JP S55161813A JP 7041279 A JP7041279 A JP 7041279A JP 7041279 A JP7041279 A JP 7041279A JP S55161813 A JPS55161813 A JP S55161813A
- Authority
- JP
- Japan
- Prior art keywords
- water
- soluble
- polysaccharide
- acrylic acid
- derivative
- 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
Abstract
PURPOSE: To prepare title polymer, which is insoluble in water, excellent in water absorption properties, and not sticky after water absorption, by reacting a polysaccharide with acrylic acid (a water-soluble derivative) in the presence of an oil- soluble nonionic surfactant and a water-soluble polymerization initiator, in a specified reaction medium.
CONSTITUTION: A petroleum hydrocarbon solvent (A) such as benzene or n- hexane, of boiling point at least 5°C higher than the polymerization temperature and not higher than 100°C, containing a polysaccharide such as starch or cellulose and an oil-soluble nonionic surfactant having a lipophilic group, is mixed with an aqueous solution (B) containing at least 35wt%, particularly 40W50wt%, of acrylic acid (a water-soluble derivative) and a water-soluble polymerization initialor, in such a ratio that the mol ratio of acrylic acid (the derivative) to a hexose unit in the polysaccharide, is 5W60, and the volume ratio of it to the hydrocarbon solvent, is 1/1W1/5, and the mixture is reacted at 30W100°C for 2W10hr, to obtaine a water- absorbing graft polymer, having the polysaccharide as the backbone polymer and acrylic acid (the derivative) as the branch polymer.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7041279A JPS55161813A (en) | 1979-06-05 | 1979-06-05 | Preparation of water-absorbing graft polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7041279A JPS55161813A (en) | 1979-06-05 | 1979-06-05 | Preparation of water-absorbing graft polymer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55161813A true JPS55161813A (en) | 1980-12-16 |
Family
ID=13430723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7041279A Pending JPS55161813A (en) | 1979-06-05 | 1979-06-05 | Preparation of water-absorbing graft polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55161813A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0216091A2 (en) * | 1985-08-28 | 1987-04-01 | National Starch and Chemical Investment Holding Corporation | Inverse emulsions |
EP0233014A2 (en) * | 1986-02-04 | 1987-08-19 | Ciba Specialty Chemicals Water Treatments Limited | Polymers and processes for their production from water soluble monomers |
JPH07228640A (en) * | 1994-02-17 | 1995-08-29 | Nippon Shokubai Co Ltd | Water-absorbing resin and its production |
JP2011213759A (en) * | 2010-03-31 | 2011-10-27 | Nippon Shokubai Co Ltd | Water-absorptive resin and method for producing the same |
-
1979
- 1979-06-05 JP JP7041279A patent/JPS55161813A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0216091A2 (en) * | 1985-08-28 | 1987-04-01 | National Starch and Chemical Investment Holding Corporation | Inverse emulsions |
EP0233014A2 (en) * | 1986-02-04 | 1987-08-19 | Ciba Specialty Chemicals Water Treatments Limited | Polymers and processes for their production from water soluble monomers |
JPH07228640A (en) * | 1994-02-17 | 1995-08-29 | Nippon Shokubai Co Ltd | Water-absorbing resin and its production |
JP2011213759A (en) * | 2010-03-31 | 2011-10-27 | Nippon Shokubai Co Ltd | Water-absorptive resin and method for producing the same |
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