JP4640923B2 - 粒子状吸水性樹脂組成物の製造方法 - Google Patents

粒子状吸水性樹脂組成物の製造方法 Download PDF

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Publication number
JP4640923B2
JP4640923B2 JP2004256221A JP2004256221A JP4640923B2 JP 4640923 B2 JP4640923 B2 JP 4640923B2 JP 2004256221 A JP2004256221 A JP 2004256221A JP 2004256221 A JP2004256221 A JP 2004256221A JP 4640923 B2 JP4640923 B2 JP 4640923B2
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Prior art keywords
water
resin composition
absorbing resin
resin particles
absorbent resin
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Expired - Lifetime
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JP2004256221A
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Japanese (ja)
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JP2005097604A5 (cg-RX-API-DMAC7.html
JP2005097604A (ja
Inventor
浩司 三宅
貴洋 北野
邦彦 石▲崎▼
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Nippon Shokubai Co Ltd
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Nippon Shokubai Co Ltd
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Application filed by Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP2004256221A priority Critical patent/JP4640923B2/ja
Priority to CNB2004100742224A priority patent/CN100471900C/zh
Priority to EP04021015.5A priority patent/EP1512712B2/en
Priority to US10/933,319 priority patent/US8309654B2/en
Priority to DE602004028317T priority patent/DE602004028317D1/de
Publication of JP2005097604A publication Critical patent/JP2005097604A/ja
Publication of JP2005097604A5 publication Critical patent/JP2005097604A5/ja
Publication of JP4640923B2 publication Critical patent/JP4640923B2/ja
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/245—Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hematology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
JP2004256221A 2003-09-05 2004-09-02 粒子状吸水性樹脂組成物の製造方法 Expired - Lifetime JP4640923B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004256221A JP4640923B2 (ja) 2003-09-05 2004-09-02 粒子状吸水性樹脂組成物の製造方法
DE602004028317T DE602004028317D1 (de) 2003-09-05 2004-09-03 Verfahren zur Herstellung eines wasserabsorbierenden partikelförmigen Harzmaterials
EP04021015.5A EP1512712B2 (en) 2003-09-05 2004-09-03 Method of producing particle-shape water-absorbing resin material
US10/933,319 US8309654B2 (en) 2003-09-05 2004-09-03 Method of producing particle-shape water-absorbing resin material
CNB2004100742224A CN100471900C (zh) 2003-09-05 2004-09-03 颗粒状吸水性树脂组成物的制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003314625 2003-09-05
JP2004256221A JP4640923B2 (ja) 2003-09-05 2004-09-02 粒子状吸水性樹脂組成物の製造方法

Publications (3)

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JP2005097604A JP2005097604A (ja) 2005-04-14
JP2005097604A5 JP2005097604A5 (cg-RX-API-DMAC7.html) 2007-08-23
JP4640923B2 true JP4640923B2 (ja) 2011-03-02

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JP2004256221A Expired - Lifetime JP4640923B2 (ja) 2003-09-05 2004-09-02 粒子状吸水性樹脂組成物の製造方法

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US (1) US8309654B2 (cg-RX-API-DMAC7.html)
EP (1) EP1512712B2 (cg-RX-API-DMAC7.html)
JP (1) JP4640923B2 (cg-RX-API-DMAC7.html)
CN (1) CN100471900C (cg-RX-API-DMAC7.html)
DE (1) DE602004028317D1 (cg-RX-API-DMAC7.html)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI353360B (en) 2005-04-07 2011-12-01 Nippon Catalytic Chem Ind Production process of polyacrylic acid (salt) wate
TW200720347A (en) † 2005-09-30 2007-06-01 Nippon Catalytic Chem Ind Water-absorbent agent composition and method for manufacturing the same
US7816301B2 (en) * 2005-09-30 2010-10-19 Nippon Shokubai Co., Ltd. Aqueous-liquid-absorbing agent and its production process
TWI394789B (zh) 2005-12-22 2013-05-01 Nippon Catalytic Chem Ind 吸水性樹脂組成物及其製造方法、吸收性物品
EP1837348B9 (en) 2006-03-24 2020-01-08 Nippon Shokubai Co.,Ltd. Water-absorbing resin and method for manufacturing the same
JP5006675B2 (ja) * 2006-03-27 2012-08-22 株式会社日本触媒 吸水性樹脂組成物およびその製造方法
EP2289982B1 (en) 2006-03-27 2018-05-23 Nippon Shokubai Co., Ltd. Production method for water-absorbing resin composition
DE102006019157A1 (de) * 2006-04-21 2007-10-25 Stockhausen Gmbh Herstellung von hochpermeablen, superabsorbierenden Polymergebilden
US8252715B2 (en) 2007-03-05 2012-08-28 Nippon Shokubai Co., Ltd. Water-absorbing agent and production method thereof
WO2008120742A1 (ja) 2007-03-29 2008-10-09 Nippon Shokubai Co., Ltd. 粒子状吸水剤及びその製造方法
US20080254255A1 (en) * 2007-04-16 2008-10-16 Taiwan Seesun Inc. Gel foam elastomer and method of manufacturing said gel foam elastomer
JP5558343B2 (ja) 2008-03-13 2014-07-23 株式会社日本触媒 吸水性樹脂の製造方法
EP2261148B1 (en) 2008-03-28 2013-02-13 Nippon Shokubai Co., Ltd. Conveyance method for water-absorbing resin powder substance
JP5410412B2 (ja) 2008-03-31 2014-02-05 株式会社日本触媒 吸水性樹脂を主成分とする粒子状吸水剤の製造方法及びその製造装置
US9175143B2 (en) 2009-03-31 2015-11-03 Nippon Shokubai Co., Ltd. Method for producing particulate water-absorbent resin
KR20110006771A (ko) * 2009-07-15 2011-01-21 주식회사 엘지화학 고흡수성 수지의 제조 방법
CN102548654A (zh) 2009-09-29 2012-07-04 株式会社日本触媒 颗粒状吸水剂及其制造方法
JP5844614B2 (ja) * 2011-11-08 2016-01-20 株式会社アイセロ 被覆対象物への貼付用成形体
US9951201B2 (en) * 2011-12-16 2018-04-24 Soken Chemical & Engineering Co., Ltd. Resin particle assemblage, method for producing the same, and method for controlling particle size in resin particle assemblage
JP6373266B2 (ja) * 2012-08-29 2018-08-15 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 吸水性ポリマー粒子の製造方法
CN102936450B (zh) * 2012-11-21 2014-10-29 广州酷漫居动漫科技有限公司 一种uv油墨搭桥剂及其应用
EP2952537B1 (en) * 2013-01-29 2021-10-27 Nippon Shokubai Co., Ltd. Water-absorbable resin material and method for producing same
JP6313280B2 (ja) * 2013-03-27 2018-04-18 住友精化株式会社 吸水性樹脂組成物の製造方法
WO2016099532A1 (en) 2014-12-19 2016-06-23 Halliburton Energy Services, Inc. Purification of organically modified surface active minerals by air classification
KR101910098B1 (ko) * 2015-01-05 2018-10-19 주식회사 엘지화학 미세입자를 포함하는 수분산액으로 처리된 고흡수성 수지의 제조 방법 및 이로부터 제조된 고흡수성 수지
KR101949994B1 (ko) 2015-10-14 2019-02-19 주식회사 엘지화학 고흡수성 수지 조립체 및 이의 제조 방법
KR101960042B1 (ko) 2016-03-24 2019-03-19 주식회사 엘지화학 고흡수성 수지의 제조 방법 및 이로부터 제조된 고흡수성 수지
WO2017164462A1 (ko) * 2016-03-24 2017-09-28 주식회사 엘지화학 고흡수성 수지의 제조 방법 및 이로부터 제조된 고흡수성 수지
WO2019188648A1 (ja) * 2018-03-26 2019-10-03 Ｓｄｐグローバル株式会社 吸水性樹脂粒子及びその製造方法
CN111868145B (zh) * 2018-03-29 2023-07-28 三大雅株式会社 吸水性树脂颗粒及其制造方法
KR102716325B1 (ko) * 2019-03-20 2024-10-10 주식회사 엘지화학 고흡수성 수지 및 이의 제조방법
EP3881814A1 (en) 2020-03-17 2021-09-22 The Procter & Gamble Company Absorbent core comprising a high loft central layer and superabsorbent particles
WO2021201177A1 (ja) * 2020-03-31 2021-10-07 株式会社日本触媒 粒子状吸水剤
CN116209718A (zh) * 2020-09-17 2023-06-02 巴斯夫欧洲公司 制备超吸收性聚合物颗粒的方法
EP4259055B1 (en) 2020-12-10 2025-11-19 The Procter & Gamble Company Absorbent core comprising a high loft central layer and two different superabsorbent polymers
CN112625306B (zh) * 2021-01-11 2023-01-10 中国制浆造纸研究院有限公司 一种全生物降解吸水树脂及其制备方法
EP4088697A1 (en) 2021-05-10 2022-11-16 The Procter & Gamble Company Process for forming composite absorbent material and composite absorbent material made by the process
KR20240089202A (ko) * 2021-10-29 2024-06-20 스미토모 세이카 가부시키가이샤 흡수성 수지 조성물, 흡수체, 흡수성 물품, 및 흡수성 물품으로부터의 흡수성 수지 입자의 분리 처리 방법
EP4424777A1 (en) * 2021-10-29 2024-09-04 Sumitomo Seika Chemicals Co., Ltd. Water-absorbent resin composition, absorber, and water-absorbent article
CN118829413A (zh) 2022-03-09 2024-10-22 宝洁公司 具有高渗透性sap的吸收制品

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US524735A (en) * 1894-08-21 Sanding device for cars
JPS5346389A (en) * 1976-10-07 1978-04-25 Kao Corp Preparation of self-crosslinking polymer of acrylic alkali metal salt
US4286082A (en) * 1979-04-06 1981-08-25 Nippon Shokubai Kagaku Kogyo & Co., Ltd. Absorbent resin composition and process for producing same
JPS56133028A (en) * 1980-03-25 1981-10-17 Nippon Shokubai Kagaku Kogyo Co Ltd Composition of water absorbent
GB2088392B (en) * 1980-12-03 1984-05-02 Sumitomo Chemical Co Production of hydrogels
JPS57158209A (en) * 1981-03-25 1982-09-30 Kao Corp Production of bead-form highly water-absorbing polymer
US4985518A (en) * 1981-10-26 1991-01-15 American Colloid Company Process for preparing water-absorbing resins
US4734478A (en) * 1984-07-02 1988-03-29 Nippon Shokubai Kagaku Kogyo Co., Ltd. Water absorbing agent
JPS6197333A (ja) 1984-10-17 1986-05-15 Nippon Shokubai Kagaku Kogyo Co Ltd 高吸水性樹脂粉末の造粒方法
US4625001A (en) * 1984-09-25 1986-11-25 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method for continuous production of cross-linked polymer
JPS6187702A (ja) * 1984-10-05 1986-05-06 Seitetsu Kagaku Co Ltd 吸水性樹脂の製造方法
USRE32649E (en) 1985-06-18 1988-04-19 The Procter & Gamble Company Hydrogel-forming polymer compositions for use in absorbent structures
DE3609545A1 (de) * 1986-03-21 1987-09-24 Basf Ag Verfahren zur diskontinuierlichen herstellung von vernetzten, feinteiligen polymerisaten
US4863989A (en) * 1986-06-04 1989-09-05 Seitetsu Kagaku Co., Ltd. Water-absorbent resin composition
IT1226741B (it) 1987-08-19 1991-02-05 Procter & Gamble Strutture assorbenti con agente gelificante e articoli assorbenti contenenti tali strutture.
ZA892846B (en) 1988-04-21 1989-12-27 Kimberly Clark Co Absorbent products containing hydrogels with ability to swell against pressure
CA1333439C (en) * 1988-05-23 1994-12-06 Akito Yano Method for production of hydrophilic polymer
US5244735A (en) 1988-06-28 1993-09-14 Nippon Shokubai Kagaku Kabushiki Kaisha Water-absorbent resin and production process
KR930007272B1 (ko) * 1988-06-28 1993-08-04 닙본 쇼쿠바이 가브시기 가이샤 흡수성 수지 및 그 제법
US5002986A (en) * 1989-02-28 1991-03-26 Hoechst Celanese Corporation Fluid absorbent compositions and process for their preparation
WO1991003497A1 (fr) * 1989-09-04 1991-03-21 Nippon Shokubai Kagaku Kogyo Co., Ltd. Procede pour la preparation de resine pouvant absorber de l'eau
US5145906A (en) * 1989-09-28 1992-09-08 Hoechst Celanese Corporation Super-absorbent polymer having improved absorbency properties
EP0454497B1 (en) * 1990-04-27 1997-02-26 Nippon Shokubai Co., Ltd. Method for production of salt-resistant absorbent resin
US5369148A (en) * 1990-04-27 1994-11-29 Nippon Shokubai Co., Ltd. Method for continuous agglomeration of an absorbent resin powder and apparatus therefor
DE4020780C1 (cg-RX-API-DMAC7.html) * 1990-06-29 1991-08-29 Chemische Fabrik Stockhausen Gmbh, 4150 Krefeld, De
EP0467073B1 (en) * 1990-07-17 1995-04-12 Sanyo Chemical Industries Ltd. Process for producing water-absorbing resins
EP0493011B1 (en) 1990-12-21 2009-07-29 Nippon Shokubai Co., Ltd. Water absorbent matter and method for producing it as well as water absorbent and method for producing it
TW241279B (cg-RX-API-DMAC7.html) * 1991-02-01 1995-02-21 Catalyst co ltd
US5250640A (en) * 1991-04-10 1993-10-05 Nippon Shokubai Co., Ltd. Method for production of particulate hydrogel polymer and absorbent resin
US5154713A (en) * 1991-10-22 1992-10-13 Nalco Chemical Company Enhancing absorption rates of superabsorbents by incorporating a blowing agent
EP0878488B2 (en) * 1992-06-10 2010-10-27 Nippon Shokubai Co., Ltd. Method for production of hydrophilic resin
DE4244548C2 (de) * 1992-12-30 1997-10-02 Stockhausen Chem Fab Gmbh Pulverförmige, unter Belastung wäßrige Flüssigkeiten sowie Blut absorbierende Polymere, Verfahren zu ihrer Herstellung und ihre Verwendung in textilen Konstruktionen für die Körperhygiene
US5328935A (en) * 1993-03-26 1994-07-12 The Procter & Gamble Company Method of makig a superabsorbent polymer foam
US5338766A (en) * 1993-03-26 1994-08-16 The Procter & Gamble Company Superabsorbent polymer foam
EP0629411B1 (en) 1993-06-18 2001-10-31 SANYO CHEMICAL INDUSTRIES, Ltd. Absorbent composition and disposable diaper containing the same
JP3205168B2 (ja) * 1993-06-18 2001-09-04 三洋化成工業株式会社 紙おむつ用吸収剤組成物
IL110134A (en) * 1993-07-09 1998-07-15 Stockhausen Chem Fab Gmbh Polymers capable of absorbing aqueous liquids and body fluids their preparation and use
US5314420A (en) * 1993-09-17 1994-05-24 Nalco Chemical Company Superabsorbent polymer having improved absorption rate and absorption under pressure
US5451613A (en) * 1993-09-17 1995-09-19 Nalco Chemical Company Superabsorbent polymer having improved absorption rate and absorption under pressure
DE69531670T3 (de) * 1994-12-08 2012-02-23 Nippon Shokubai Co. Ltd. Poröses wasserabsorbierendes Harz
JPH10511357A (ja) * 1994-12-22 1998-11-04 スミスクライン・ビーチャム・コーポレイション フィブリノゲン受容体拮抗物質
US5981070A (en) * 1995-07-07 1999-11-09 Nippon Shokubai Co., Ltd Water-absorbent agent powders and manufacturing method of the same
US6107358A (en) * 1996-08-23 2000-08-22 Nippon Shokubai Co., Ltd. Water-absorbent resin and method for production thereof
CN100345891C (zh) * 1996-10-24 2007-10-31 株式会社日本触媒 吸水性树脂的制造方法
US5840979A (en) * 1997-07-14 1998-11-24 University Of Saskatchewan Aliphatic propargylamines as cellular rescue agents
JP3763376B2 (ja) * 1997-12-25 2006-04-05 株式会社日本触媒 親水性樹脂の製造方法
US6599989B2 (en) * 1998-03-03 2003-07-29 Nippon Skokubai Co., Ltd. Water-absorbent agents containing polycarboxylic amine chelating agents
DE19809540A1 (de) * 1998-03-05 1999-09-09 Basf Ag Wasserabsorbierende, schaumförmige, vernetzte Polymerisate, Verfahren zu ihrer Herstellung und ihre Verwendung
US6444744B1 (en) * 1998-03-11 2002-09-03 Nippon Shokubai Co., Ltd. Hydrophilic resin, absorbent article, and acrylic acid for polymerization
US6124391A (en) 1998-08-18 2000-09-26 Stockhausen Gmbh & Co. Kg Superabsorbent polymers having anti-caking characteristics
DE19854574A1 (de) * 1998-11-26 2000-05-31 Basf Ag Verfahren zur Nachvernetzung von Hydrogelen mit N-Acyl-2-Oxazolidinonen
DE60016326T2 (de) 1999-07-26 2005-11-24 Nippon Shokubai Co., Ltd. Wasser-absorbierende Zusammensetzung und ihre Verwendung
JP4679683B2 (ja) * 1999-11-02 2011-04-27 株式会社日本触媒 吸水性重合体の製造方法、及び該重合体の製造装置
US6469080B2 (en) * 1999-12-15 2002-10-22 Nippon Shokubai Co., Ltd. Water-absorbent resin composition
US20010006267A1 (en) 1999-12-27 2001-07-05 Nobuyuki Harada Production processes for basic water-absorbent resin and water-absorbing agent, and use thereof
DE50102334D1 (de) * 2000-03-31 2004-06-24 Stockhausen Chem Fab Gmbh Pulverförmige, an der oberfläche vernetzte polymerisate
DE10016041A1 (de) † 2000-03-31 2001-10-04 Stockhausen Chem Fab Gmbh Pulverförmige an der Oberfläche vernetzte Polymerisate
US6720073B2 (en) * 2000-04-07 2004-04-13 Kimberly-Clark Worldwide, Inc. Material enhancement to maintain high absorbent capacity under high loads following rigorous process conditions
US6809158B2 (en) * 2000-10-20 2004-10-26 Nippon Shokubai Co., Ltd. Water-absorbing agent and process for producing the same
JP4315680B2 (ja) * 2000-12-29 2009-08-19 ビーエーエスエフ ソシエタス・ヨーロピア 吸収性組成物
US7507475B2 (en) * 2001-03-07 2009-03-24 Evonik Stockhausen Gmbh Pulverulent polymers crosslinked on the surface
ATE340199T1 (de) * 2001-06-28 2006-10-15 Basf Ag Saure hochquellfähige hydrogele
US6727345B2 (en) * 2001-07-03 2004-04-27 Nippon Shokubai Co., Ltd. Continuous production process for water-absorbent resin powder and powder surface detector used therefor
US6716894B2 (en) * 2001-07-06 2004-04-06 Nippon Shokubai Co., Ltd. Water-absorbent resin powder and its production process and uses
EP1551467B1 (en) 2002-08-23 2006-03-08 Basf Aktiengesellschaft Superabsorbent polymers and method of manufacturing the same

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US8309654B2 (en) 2012-11-13
EP1512712B1 (en) 2010-07-28
CN1611529A (zh) 2005-05-04
DE602004028317D1 (de) 2010-09-09
EP1512712A1 (en) 2005-03-09
CN100471900C (zh) 2009-03-25
EP1512712B2 (en) 2019-04-24
JP2005097604A (ja) 2005-04-14
US20050113252A1 (en) 2005-05-26

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