JPS5774309A - Production of water-soluble bead polymer - Google Patents
Production of water-soluble bead polymerInfo
- Publication number
- JPS5774309A JPS5774309A JP15045480A JP15045480A JPS5774309A JP S5774309 A JPS5774309 A JP S5774309A JP 15045480 A JP15045480 A JP 15045480A JP 15045480 A JP15045480 A JP 15045480A JP S5774309 A JPS5774309 A JP S5774309A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- water
- copolymer
- production
- subjecting
- 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
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: To prevent a phenomenon of formation of films on the wall or a like area of a polymerization vessel, by using a specified copolymer as a protective colloid in the production of the title polymer by subjecting an aqueous solution of an ethylenically unsaturated monomer to a reversed phase suspension polymerization.
CONSTITUTION: A water-soluble bead polymer is produced by subjecting an aqueous solution of an ethylenically unsaturated monomer, e.g., methacrylic acid or acrylamide, to a reversed phase suspension polymerization using a water-soluble radical polymerization initiator such as potassium persulfate, in an unpolymerizable hydrophobic liquid, e.g., hexane. In this polymerization, a phenomenon of formation of films on the wall or a like area of a polymerization vessel is prevented by using, as a protective colloid, a copolymer of a 16W60C α-olefin and an α, β- unsaturated carboxylic acid anhydride, .g., maleic anhydride or itaconic anhydride, or a derivative of the copolymer, e.g., partially esterified product or partially amidated product.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15045480A JPS5774309A (en) | 1980-10-27 | 1980-10-27 | Production of water-soluble bead polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15045480A JPS5774309A (en) | 1980-10-27 | 1980-10-27 | Production of water-soluble bead polymer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5774309A true JPS5774309A (en) | 1982-05-10 |
Family
ID=15497276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15045480A Pending JPS5774309A (en) | 1980-10-27 | 1980-10-27 | Production of water-soluble bead polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5774309A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6253310A (en) * | 1985-09-02 | 1987-03-09 | Mitsubishi Petrochem Co Ltd | Production of beadlike self-crosslinking water-absorbing polymer |
JPS6262807A (en) * | 1985-09-13 | 1987-03-19 | Mitsubishi Petrochem Co Ltd | Production of highly water-absorbing polymer bead |
JP2008183541A (en) * | 2007-01-31 | 2008-08-14 | Sanyo Chem Ind Ltd | Polymer flocculant |
WO2011154990A1 (en) * | 2010-06-08 | 2011-12-15 | 三洋化成工業株式会社 | Polymer flocculating agent and method for producing same |
WO2011154991A1 (en) * | 2010-06-08 | 2011-12-15 | 三洋化成工業株式会社 | Polymer flocculating agent and method for producing same |
-
1980
- 1980-10-27 JP JP15045480A patent/JPS5774309A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6253310A (en) * | 1985-09-02 | 1987-03-09 | Mitsubishi Petrochem Co Ltd | Production of beadlike self-crosslinking water-absorbing polymer |
JPS6262807A (en) * | 1985-09-13 | 1987-03-19 | Mitsubishi Petrochem Co Ltd | Production of highly water-absorbing polymer bead |
JP2008183541A (en) * | 2007-01-31 | 2008-08-14 | Sanyo Chem Ind Ltd | Polymer flocculant |
WO2011154990A1 (en) * | 2010-06-08 | 2011-12-15 | 三洋化成工業株式会社 | Polymer flocculating agent and method for producing same |
WO2011154991A1 (en) * | 2010-06-08 | 2011-12-15 | 三洋化成工業株式会社 | Polymer flocculating agent and method for producing same |
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