JPS5774309A - Production of water-soluble bead polymer - Google Patents

Production of water-soluble bead polymer

Info

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
Application number
JP15045480A
Other languages
Japanese (ja)
Inventor
Harumasa Yamazaki
Hiroshi Fukuzaki
Yuzo Tsunoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Priority to JP15045480A priority Critical patent/JPS5774309A/en
Publication of JPS5774309A publication Critical patent/JPS5774309A/en
Pending legal-status Critical Current

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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
JP15045480A 1980-10-27 1980-10-27 Production of water-soluble bead polymer Pending JPS5774309A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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