JPS57167304A - Production of water-absorbing resin - Google Patents

Production of water-absorbing resin

Info

Publication number
JPS57167304A
JPS57167304A JP5303981A JP5303981A JPS57167304A JP S57167304 A JPS57167304 A JP S57167304A JP 5303981 A JP5303981 A JP 5303981A JP 5303981 A JP5303981 A JP 5303981A JP S57167304 A JPS57167304 A JP S57167304A
Authority
JP
Japan
Prior art keywords
water
polymer
carboxylic acid
unsaturated carboxylic
monoethylenically unsaturated
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
JP5303981A
Other languages
Japanese (ja)
Inventor
Hiroshi Nagase
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.)
Fujikura Kasei Co Ltd
Original Assignee
Fujikura Kasei Co Ltd
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 Fujikura Kasei Co Ltd filed Critical Fujikura Kasei Co Ltd
Priority to JP5303981A priority Critical patent/JPS57167304A/en
Publication of JPS57167304A publication Critical patent/JPS57167304A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To produce the titled resin which rapidly absorbs water and has excellent water retention, by polymerizing a monoethylenically unsaturated carboxylic acid (lower alkyl ester) with a specified monomer and saponifying, drying and grinding the polymer.
CONSTITUTION: A polymer is obtained by subjecting (A) 100pts.wt. monoethylenically unsaturated carboxylic acid or its lower alkyl ester (e.g., methyl acrylate) and (B) 10W100pts.wt. water-soluble monomer selected from monoethylenically unsaturated carboxylic acid esters of polyhydric alcohols[e.g., hydroxyethy(meth)acrylate]to an aqueous dispersion polymerization in the absence of an emulsifier and in the presence of a water-soluble polymerization initiator. Then, this polymer is saponified with a basic substance (e.g., NaOH) in an amount equimolar or slightly excess to component A, washed with acetone and water, vacuum-dried and ground.
COPYRIGHT: (C)1982,JPO&Japio
JP5303981A 1981-04-10 1981-04-10 Production of water-absorbing resin Pending JPS57167304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5303981A JPS57167304A (en) 1981-04-10 1981-04-10 Production of water-absorbing resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5303981A JPS57167304A (en) 1981-04-10 1981-04-10 Production of water-absorbing resin

Publications (1)

Publication Number Publication Date
JPS57167304A true JPS57167304A (en) 1982-10-15

Family

ID=12931740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5303981A Pending JPS57167304A (en) 1981-04-10 1981-04-10 Production of water-absorbing resin

Country Status (1)

Country Link
JP (1) JPS57167304A (en)

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