JPS5676419A - Production of water-swellable polymer - Google Patents

Production of water-swellable polymer

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Publication number
JPS5676419A
JPS5676419A JP15463279A JP15463279A JPS5676419A JP S5676419 A JPS5676419 A JP S5676419A JP 15463279 A JP15463279 A JP 15463279A JP 15463279 A JP15463279 A JP 15463279A JP S5676419 A JPS5676419 A JP S5676419A
Authority
JP
Japan
Prior art keywords
alkali metal
polymer
water
metal acrylate
neutralization
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
JP15463279A
Other languages
Japanese (ja)
Inventor
Harumasa Yamazaki
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 JP15463279A priority Critical patent/JPS5676419A/en
Publication of JPS5676419A publication Critical patent/JPS5676419A/en
Pending legal-status Critical Current

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  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To obtain a highly water-absorbing, sanitarily safe polymer, by dispersing an aqueous alkali metal acrylate solution containing hydroxyethyl cellulose into a solvent in the presence of a sorbitan fatty acid ester.
CONSTITUTION: A 35wt%Wsaturated aqueous alkali metal acrylate solution containing a water-soluble radical polymerization initiator and hydroxyethyl cellulose is dispersed in an aliphatic hydrocarbon type solvent in the presence of a sorbitan fatty acid ester, HLB 3W6, and the resulting dispersion is polymerized in the absence of a crosslinking agent. In the production of an alkali metal acrylate polymer, the neutralization of acrylic acid must be performed by use of an alkali metal hydroxide before starting the polymerization, because the polymer is difficult to grind into powder. The degree of neutralization is 50W95mol%. As the apliphatic hydrocarbon which can be used, n-hexane is particularly preferred.
USE: Napkins, paper-diapers, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP15463279A 1979-11-29 1979-11-29 Production of water-swellable polymer Pending JPS5676419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15463279A JPS5676419A (en) 1979-11-29 1979-11-29 Production of water-swellable polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15463279A JPS5676419A (en) 1979-11-29 1979-11-29 Production of water-swellable polymer

Publications (1)

Publication Number Publication Date
JPS5676419A true JPS5676419A (en) 1981-06-24

Family

ID=15588434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15463279A Pending JPS5676419A (en) 1979-11-29 1979-11-29 Production of water-swellable polymer

Country Status (1)

Country Link
JP (1) JPS5676419A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459396A (en) * 1981-08-20 1984-07-10 Kao Soap Co., Ltd. Process for producing water-absorbent materials having excellent water absorption properties
JPS6295308A (en) * 1985-10-21 1987-05-01 Mitsubishi Petrochem Co Ltd Production of highly water-absorbing polymer bead
EP0242529A2 (en) * 1986-04-19 1987-10-28 Starchem Gmbh Process for the preparation of water absorbent and water-swellable polysaccharide graft polymers
JPS63118375A (en) * 1986-06-04 1988-05-23 Seitetsu Kagaku Co Ltd Water-absorptive composition
JPH02191604A (en) * 1988-06-28 1990-07-27 Nippon Shokubai Kagaku Kogyo Co Ltd Water-absorbing resin and production thereof
US5783678A (en) * 1995-03-24 1998-07-21 Nippon Shokubai Co., Ltd. Acrylic ester derivative and producing of the same and acrylic-ester-based polymer
US5792855A (en) * 1993-08-03 1998-08-11 Nippon Shokubai Co., Ltd. Water-absorbent resins and manufacturing methods thereof
US6087002A (en) * 1988-06-28 2000-07-11 Nippon Shokubai Kagaku Kogyo Co. Ltd. Water absorbent resin

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459396A (en) * 1981-08-20 1984-07-10 Kao Soap Co., Ltd. Process for producing water-absorbent materials having excellent water absorption properties
JPS6295308A (en) * 1985-10-21 1987-05-01 Mitsubishi Petrochem Co Ltd Production of highly water-absorbing polymer bead
EP0242529A2 (en) * 1986-04-19 1987-10-28 Starchem Gmbh Process for the preparation of water absorbent and water-swellable polysaccharide graft polymers
JPS63118375A (en) * 1986-06-04 1988-05-23 Seitetsu Kagaku Co Ltd Water-absorptive composition
JPH0534383B2 (en) * 1986-06-04 1993-05-21 Sumitomo Seika Kk
JPH02191604A (en) * 1988-06-28 1990-07-27 Nippon Shokubai Kagaku Kogyo Co Ltd Water-absorbing resin and production thereof
US6087002A (en) * 1988-06-28 2000-07-11 Nippon Shokubai Kagaku Kogyo Co. Ltd. Water absorbent resin
US5792855A (en) * 1993-08-03 1998-08-11 Nippon Shokubai Co., Ltd. Water-absorbent resins and manufacturing methods thereof
US5783678A (en) * 1995-03-24 1998-07-21 Nippon Shokubai Co., Ltd. Acrylic ester derivative and producing of the same and acrylic-ester-based polymer

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