JPS5626909A - Preparation of water-absorbing acrylic polymer - Google Patents

Preparation of water-absorbing acrylic polymer

Info

Publication number
JPS5626909A
JPS5626909A JP10340579A JP10340579A JPS5626909A JP S5626909 A JPS5626909 A JP S5626909A JP 10340579 A JP10340579 A JP 10340579A JP 10340579 A JP10340579 A JP 10340579A JP S5626909 A JPS5626909 A JP S5626909A
Authority
JP
Japan
Prior art keywords
polymerization
solvent
boiling
water
reduced pressure
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.)
Granted
Application number
JP10340579A
Other languages
Japanese (ja)
Other versions
JPH0114242B2 (en
Inventor
Shigeji Obayashi
Morio Nakamura
Koichi Fujiki
Takushi Yamamoto
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.)
Sumitomo Seika Chemicals Co Ltd
Original Assignee
Seitetsu Kagaku 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 Seitetsu Kagaku Co Ltd filed Critical Seitetsu Kagaku Co Ltd
Priority to JP10340579A priority Critical patent/JPS5626909A/en
Publication of JPS5626909A publication Critical patent/JPS5626909A/en
Publication of JPH0114242B2 publication Critical patent/JPH0114242B2/ja
Granted legal-status Critical Current

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  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To safely obtain the titled polymer with excellent water absorption properties, by means of polymerization at a specified temperature and at a reduced pressure corresponding to the boiling pt. of the solvent, in the inverted-phase suspension polymerization of acrylic acid (alkali salt) in an aliphatic hydrocarbon solvent.
CONSTITUTION: Acrylic acid is partially neutralized to an extent of 50W90mol% neutralization with sodium hydroxide, etc., and suspended in an alicyclic hydrocarbon solvent, such as cyclohexane or methylcyclohexane, containing a lipophilic surfactant such as sorbitol monostearate. Then it is subjected to the inverter-phase suspension polymerization in the presence of a water-soluble radical polymerization catalyst such as potassium persulfate or sodium persulfate. By carrying out said polymerization at 40W70°C and at a reduced pressure corresponding to the boiling point of the solvent used, the heat of polymerization is removed by means of boiling of the solvent, which permits a stable polymerization and production of a polymer excellent in product quality etc.
COPYRIGHT: (C)1981,JPO&Japio
JP10340579A 1979-08-13 1979-08-13 Preparation of water-absorbing acrylic polymer Granted JPS5626909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10340579A JPS5626909A (en) 1979-08-13 1979-08-13 Preparation of water-absorbing acrylic polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10340579A JPS5626909A (en) 1979-08-13 1979-08-13 Preparation of water-absorbing acrylic polymer

Publications (2)

Publication Number Publication Date
JPS5626909A true JPS5626909A (en) 1981-03-16
JPH0114242B2 JPH0114242B2 (en) 1989-03-10

Family

ID=14353135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10340579A Granted JPS5626909A (en) 1979-08-13 1979-08-13 Preparation of water-absorbing acrylic polymer

Country Status (1)

Country Link
JP (1) JPS5626909A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117222A (en) * 1981-12-30 1983-07-12 Seitetsu Kagaku Co Ltd Improvement in water absorptivity of water-absorbing resin
JPS6143329A (en) * 1984-08-07 1986-03-01 Mitsutoyo Mfg Co Ltd Signal input device
KR100376561B1 (en) * 2000-07-11 2003-03-17 지성규 Manufacturing Method for Coating Aluminium Plate and Coating Method Using Thereof
JP2009509722A (en) * 2005-09-30 2009-03-12 株式会社日本触媒 Water-absorbing agent containing water-absorbing resin as main component and method for producing the same
WO2010073658A1 (en) 2008-12-26 2010-07-01 サンダイヤポリマー株式会社 Absorbing resin particles, process for producing same, and absorbent and absorbing article both including same
WO2011052140A1 (en) 2009-10-30 2011-05-05 三洋化成工業株式会社 Absorbent resin particles for water-stopping tape, and water-stopping tape containing same
WO2015016075A1 (en) 2013-07-29 2015-02-05 住友精化株式会社 Process for producing water-absorbing resin particle
KR20160138998A (en) 2014-03-26 2016-12-06 스미토모 세이카 가부시키가이샤 Method for producing water-absorbent resin particle
WO2018180547A1 (en) 2017-03-30 2018-10-04 Ｓｄｐグローバル株式会社 Molecular-weight controlling agent for radical polymerization, method for producing polymer using same, and polymer
US10682625B2 (en) 2015-10-02 2020-06-16 Sdp Global Co., Ltd. Absorbent resin composition and method for producing same
WO2020213298A1 (en) 2019-04-16 2020-10-22 三洋化成工業株式会社 Method for producing water-absorbing resin particles
US11084889B2 (en) 2015-10-02 2021-08-10 Sdp Global Co., Ltd. Water-absorbent resin particles and method for producing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3005053U (en) * 1994-06-08 1994-12-06 株式会社ホクエツ Retaining wall unit

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58117222A (en) * 1981-12-30 1983-07-12 Seitetsu Kagaku Co Ltd Improvement in water absorptivity of water-absorbing resin
JPS6018690B2 (en) * 1981-12-30 1985-05-11 住友精化株式会社 Method for improving water absorbency of water absorbent resin
JPS6143329A (en) * 1984-08-07 1986-03-01 Mitsutoyo Mfg Co Ltd Signal input device
JPH0157367B2 (en) * 1984-08-07 1989-12-05 Mitutoyo Corp
KR100376561B1 (en) * 2000-07-11 2003-03-17 지성규 Manufacturing Method for Coating Aluminium Plate and Coating Method Using Thereof
JP2009509722A (en) * 2005-09-30 2009-03-12 株式会社日本触媒 Water-absorbing agent containing water-absorbing resin as main component and method for producing the same
US9309375B2 (en) 2005-09-30 2016-04-12 Nippon Shokubai Co., Ltd. Water-absorbing agent having water-absorbent resin as a main component and production method of the water-absorbing agent
US8742023B2 (en) 2008-12-26 2014-06-03 San-Dia Polymers, Ltd. Absorbent resin particle, process for producing the same, absorber containing the same, and absorbent article
WO2010073658A1 (en) 2008-12-26 2010-07-01 サンダイヤポリマー株式会社 Absorbing resin particles, process for producing same, and absorbent and absorbing article both including same
WO2011052140A1 (en) 2009-10-30 2011-05-05 三洋化成工業株式会社 Absorbent resin particles for water-stopping tape, and water-stopping tape containing same
WO2015016075A1 (en) 2013-07-29 2015-02-05 住友精化株式会社 Process for producing water-absorbing resin particle
KR20160138998A (en) 2014-03-26 2016-12-06 스미토모 세이카 가부시키가이샤 Method for producing water-absorbent resin particle
US9745392B2 (en) 2014-03-26 2017-08-29 Sumitomo Seika Chemicals Co., Ltd. Method for producing water-absorbent resin particle
US10682625B2 (en) 2015-10-02 2020-06-16 Sdp Global Co., Ltd. Absorbent resin composition and method for producing same
US11084889B2 (en) 2015-10-02 2021-08-10 Sdp Global Co., Ltd. Water-absorbent resin particles and method for producing same
WO2018180547A1 (en) 2017-03-30 2018-10-04 Ｓｄｐグローバル株式会社 Molecular-weight controlling agent for radical polymerization, method for producing polymer using same, and polymer
WO2020213298A1 (en) 2019-04-16 2020-10-22 三洋化成工業株式会社 Method for producing water-absorbing resin particles

Also Published As

Publication number Publication date
JPH0114242B2 (en) 1989-03-10

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