JPH01318021A - Preparation of molded item of water-absorbing resin - Google Patents

Preparation of molded item of water-absorbing resin

Info

Publication number
JPH01318021A
JPH01318021A JP14807388A JP14807388A JPH01318021A JP H01318021 A JPH01318021 A JP H01318021A JP 14807388 A JP14807388 A JP 14807388A JP 14807388 A JP14807388 A JP 14807388A JP H01318021 A JPH01318021 A JP H01318021A
Authority
JP
Japan
Prior art keywords
water
polymn
acrylic acid
absorbing resin
mixture
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
JP14807388A
Inventor
Kazuo Saotome
Original Assignee
Kazuo Saotome
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 Kazuo Saotome filed Critical Kazuo Saotome
Priority to JP14807388A priority Critical patent/JPH01318021A/en
Publication of JPH01318021A publication Critical patent/JPH01318021A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE:To obtain a water-absorbing resin compsn. which can be directly sliced, has excellent water absorption properties and is useful as a water- absorbing and water-retentive material by polymerizing an aq. mixture of a partially neutralized acrylic acid wherein fine precipitates of sodium acrylate are dispersed with a polymn. initiator without stirring. CONSTITUTION:An aq. mixture wherein an acrylic acid, 60-90mol% of the COOH groups of which are neutralized into sodium salt group and a polymn. initiator are incorporated, wherein the concn. of acrylic acid is in the range of 45-60wt.% and wherein fine precipitates of sodium acrylate are dispersed, is cast on a flat plate and heated without stirring to initiate polymn. The polymn. rapidly proceeds accompanied with heat generation and the viscosity rapidly rises. Smooth foaming and water evaporation are observed and the precipitate is dissolved and converted to a polymer. By polymerizing a dense mixture exceeding a satd. concn., a polymer having a low water content and no self- adhesiveness is obtd. and is directly sliced to give a sheet, a cubic pellet, etc. A water-absorbing resin having an excellent water-absorption property is obtd. thereby.
JP14807388A 1988-06-17 1988-06-17 Preparation of molded item of water-absorbing resin Pending JPH01318021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14807388A JPH01318021A (en) 1988-06-17 1988-06-17 Preparation of molded item of water-absorbing resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14807388A JPH01318021A (en) 1988-06-17 1988-06-17 Preparation of molded item of water-absorbing resin

Publications (1)

Publication Number Publication Date
JPH01318021A true JPH01318021A (en) 1989-12-22

Family

ID=15444615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14807388A Pending JPH01318021A (en) 1988-06-17 1988-06-17 Preparation of molded item of water-absorbing resin

Country Status (1)

Country Link
JP (1) JPH01318021A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007519790A (en) * 2004-01-28 2007-07-19 ビーエーエスエフ アクチェンゲゼルシャフトBASF Aktiengesellschaft The method of manufacturing polymer
WO2011078298A1 (en) 2009-12-24 2011-06-30 株式会社日本触媒 Water-absorbable polyacrylic acid resin powder, and process for production thereof
WO2011136301A1 (en) 2010-04-27 2011-11-03 株式会社日本触媒 Method for producing polyacrylic acid (salt)-based water absorbent resin powder
WO2012144595A1 (en) 2011-04-20 2012-10-26 株式会社日本触媒 Process and apparatus for producing water-absorbable resin of polyacrylic acid (salt) type
WO2014041968A1 (en) 2012-09-11 2014-03-20 株式会社日本触媒 Method for manufacturing polyacrylic acid (polyacrylate)-based water-absorbent agent, and water-absorbent agent
WO2014041969A1 (en) 2012-09-11 2014-03-20 株式会社日本触媒 Method for manufacturing polyacrylic acid (polyacrylate)-based absorbent, and absorbent
WO2014054731A1 (en) 2012-10-03 2014-04-10 株式会社日本触媒 Absorbent and manufacturing method therefor
WO2014054656A1 (en) 2012-10-01 2014-04-10 株式会社日本触媒 Dust-reducing agent comprising multiple metal compound, water absorbent containing multiple metal compound and method for manufacturing same
US8791210B2 (en) 2009-02-17 2014-07-29 Nippon Shokubai Co., Ltd. Polyacrylic water-absorbent resin powder and method for producing the same
WO2014119553A1 (en) 2013-01-29 2014-08-07 株式会社日本触媒 Water-absorbable resin material and method for producing same
WO2015093594A1 (en) 2013-12-20 2015-06-25 株式会社日本触媒 Polyacrylic acid (salt) water absorbent, and method for producing same
US9074030B2 (en) 2010-06-30 2015-07-07 Nippon Shokubai Co., Ltd. Polyacrylic acid-type water absorbent resin and method for producing same
KR20160127742A (en) 2014-02-28 2016-11-04 가부시키가이샤 닛폰 쇼쿠바이 Poly(meth)acrylic acid (salt)-based particulate absorbent, and production method

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007519790A (en) * 2004-01-28 2007-07-19 ビーエーエスエフ アクチェンゲゼルシャフトBASF Aktiengesellschaft The method of manufacturing polymer
EP1711541B2 (en) 2004-01-28 2015-09-23 Basf Se Method for producing polymers
US8791210B2 (en) 2009-02-17 2014-07-29 Nippon Shokubai Co., Ltd. Polyacrylic water-absorbent resin powder and method for producing the same
US9243079B2 (en) 2009-02-17 2016-01-26 Nippon Shokubai Co., Ltd. Polyacrylic acid-based water-absorbing resin powder and method for producing the same
US9334376B2 (en) 2009-12-24 2016-05-10 Nippon Shokubai Co., Ltd Water-absorbable polyacrylic acid resin powder, and process for production thereof
KR20120132475A (en) 2009-12-24 2012-12-05 가부시키가이샤 닛폰 쇼쿠바이 Water-absorbable polyacrylic acid resin powder, and process for production thereof
WO2011078298A1 (en) 2009-12-24 2011-06-30 株式会社日本触媒 Water-absorbable polyacrylic acid resin powder, and process for production thereof
WO2011136301A1 (en) 2010-04-27 2011-11-03 株式会社日本触媒 Method for producing polyacrylic acid (salt)-based water absorbent resin powder
US8765906B2 (en) 2010-04-27 2014-07-01 Nippon Shokubai, Co., Ltd. Method for producing polyacrylic acid (salt) type water absorbent resin powder
US9074030B2 (en) 2010-06-30 2015-07-07 Nippon Shokubai Co., Ltd. Polyacrylic acid-type water absorbent resin and method for producing same
US9315640B2 (en) 2010-06-30 2016-04-19 Nippon Shokubai Co., Ltd. Polyacrylic acid-type water absorbent resin and method for producing same
WO2012144595A1 (en) 2011-04-20 2012-10-26 株式会社日本触媒 Process and apparatus for producing water-absorbable resin of polyacrylic acid (salt) type
WO2014041969A1 (en) 2012-09-11 2014-03-20 株式会社日本触媒 Method for manufacturing polyacrylic acid (polyacrylate)-based absorbent, and absorbent
WO2014041968A1 (en) 2012-09-11 2014-03-20 株式会社日本触媒 Method for manufacturing polyacrylic acid (polyacrylate)-based water-absorbent agent, and water-absorbent agent
WO2014054656A1 (en) 2012-10-01 2014-04-10 株式会社日本触媒 Dust-reducing agent comprising multiple metal compound, water absorbent containing multiple metal compound and method for manufacturing same
WO2014054731A1 (en) 2012-10-03 2014-04-10 株式会社日本触媒 Absorbent and manufacturing method therefor
US10046304B2 (en) 2012-10-03 2018-08-14 Nippon Shokubai Co., Ltd. Water absorbing agent and method for producing the same
WO2014119553A1 (en) 2013-01-29 2014-08-07 株式会社日本触媒 Water-absorbable resin material and method for producing same
KR20160102217A (en) 2013-12-20 2016-08-29 가부시키가이샤 닛폰 쇼쿠바이 Polyacrylic acid (salt) water absorbent, and method for producing same
WO2015093594A1 (en) 2013-12-20 2015-06-25 株式会社日本触媒 Polyacrylic acid (salt) water absorbent, and method for producing same
KR20160127742A (en) 2014-02-28 2016-11-04 가부시키가이샤 닛폰 쇼쿠바이 Poly(meth)acrylic acid (salt)-based particulate absorbent, and production method
US10207250B2 (en) 2014-02-28 2019-02-19 Nippon Shokubai Co., Ltd. Poly(meth)acrylic acid (salt)-based particulate absorbent

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