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

Info

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
Authority
JP
Japan
Prior art keywords
water
resin composition
absorbing resin
resin particles
absorbent resin
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.)
Expired - Lifetime
Application number
JP2004256221A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005097604A (ja
JP2005097604A5 (enExample
Inventor
浩司 三宅
貴洋 北野
邦彦 石▲崎▼
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.)
Nippon Shokubai Co Ltd
Original Assignee
Nippon Shokubai 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34138003&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP4640923(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP2004256221A priority Critical patent/JP4640923B2/ja
Priority to EP04021015.5A priority patent/EP1512712B2/en
Priority to DE602004028317T priority patent/DE602004028317D1/de
Priority to CNB2004100742224A priority patent/CN100471900C/zh
Priority to US10/933,319 priority patent/US8309654B2/en
Publication of JP2005097604A publication Critical patent/JP2005097604A/ja
Publication of JP2005097604A5 publication Critical patent/JP2005097604A5/ja
Publication of JP4640923B2 publication Critical patent/JP4640923B2/ja
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

Landscapes

  • 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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (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
US10/933,319 US8309654B2 (en) 2003-09-05 2004-09-03 Method of producing particle-shape water-absorbing resin material
DE602004028317T DE602004028317D1 (de) 2003-09-05 2004-09-03 Verfahren zur Herstellung eines wasserabsorbierenden partikelförmigen Harzmaterials
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
EP04021015.5A EP1512712B2 (en) 2003-09-05 2004-09-03 Method of producing particle-shape water-absorbing resin material

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)

Publication Number Publication Date
JP2005097604A JP2005097604A (ja) 2005-04-14
JP2005097604A5 JP2005097604A5 (enExample) 2007-08-23
JP4640923B2 true JP4640923B2 (ja) 2011-03-02

Family

ID=34138003

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (5)

Country Link
US (1) US8309654B2 (enExample)
EP (1) EP1512712B2 (enExample)
JP (1) JP4640923B2 (enExample)
CN (1) CN100471900C (enExample)
DE (1) DE602004028317D1 (enExample)

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
CN101283003B (zh) * 2005-09-30 2013-11-13 株式会社日本触媒 含水液体吸收剂和它的生产方法
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
EP1840157B1 (en) 2006-03-27 2018-07-11 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
WO2008108343A1 (ja) * 2007-03-05 2008-09-12 Nippon Shokubai Co., Ltd. 吸水剤及びその製造方法
JP5611523B2 (ja) 2007-03-29 2014-10-22 株式会社日本触媒 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
CN101970299B (zh) 2008-03-13 2013-09-11 株式会社日本触媒 以吸水性树脂作为主要成分的颗粒状吸水剂的填充方法
EP3023369B1 (en) 2008-03-28 2019-06-26 Nippon Shokubai Co., Ltd. Process for production of water-absorbing resins
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
CN104974358B (zh) * 2009-03-31 2018-11-23 株式会社日本触媒 颗粒状吸水性树脂的制造方法
KR20110006771A (ko) * 2009-07-15 2011-01-21 주식회사 엘지화학 고흡수성 수지의 제조 방법
JP5801203B2 (ja) 2009-09-29 2015-10-28 株式会社日本触媒 粒子状吸水剤及びその製造方法
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
WO2013089050A1 (ja) * 2011-12-16 2013-06-20 綜研化学株式会社 樹脂粒子群およびその製造方法ならびに樹脂粒子群の粒子の粒度調整方法
WO2014032909A1 (en) * 2012-08-29 2014-03-06 Basf Se Process for producing water-absorbing polymer particles
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
JP5952431B2 (ja) * 2013-01-29 2016-07-13 株式会社日本触媒 吸水性樹脂材料及びその製造方法
WO2014156289A1 (ja) * 2013-03-27 2014-10-02 住友精化株式会社 吸水性樹脂組成物の製造方法
GB2547156B (en) 2014-12-19 2021-07-21 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
WO2017164462A1 (ko) * 2016-03-24 2017-09-28 주식회사 엘지화학 고흡수성 수지의 제조 방법 및 이로부터 제조된 고흡수성 수지
KR101960042B1 (ko) 2016-03-24 2019-03-19 주식회사 엘지화학 고흡수성 수지의 제조 방법 및 이로부터 제조된 고흡수성 수지
CN111868144B (zh) * 2018-03-26 2023-09-08 三大雅株式会社 吸水性树脂颗粒及其制造方法
JP7257090B2 (ja) * 2018-03-29 2023-04-13 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
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
EP4130053A4 (en) * 2020-03-31 2023-09-27 Nippon Shokubai Co., Ltd. PARTICULATE WATER-ABSORBING AGENT
WO2022058190A1 (en) * 2020-09-17 2022-03-24 Basf Se Process for producing superabsorbent polymer particles
CN116583250A (zh) 2020-12-10 2023-08-11 宝洁公司 包括高蓬松中间层和两种不同的超吸收聚合物的吸收芯
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
EP4424777A1 (en) * 2021-10-29 2024-09-04 Sumitomo Seika Chemicals Co., Ltd. Water-absorbent resin composition, absorber, and water-absorbent article
EP4424779A4 (en) * 2021-10-29 2025-10-01 Sumitomo Seika Chemicals ABSORBENT RESIN COMPOSITION, ABSORBENT BODY, ABSORBENT ARTICLE, AND TREATMENT METHOD FOR SEPARATING ABSORBENT RESIN PARTICLES FROM THIS ABSORBENT ARTICLE
JP2025509146A (ja) 2022-03-09 2025-04-11 ザ プロクター アンド ギャンブル カンパニー 高透過性ｓａｐを有する吸収性物品

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.
CA1321062C (en) 1988-04-21 1993-08-10 Stanley Roy Kellenberger 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
KR930007272B1 (ko) * 1988-06-28 1993-08-04 닙본 쇼쿠바이 가브시기 가이샤 흡수성 수지 및 그 제법
US5244735A (en) 1988-06-28 1993-09-14 Nippon Shokubai Kagaku Kabushiki Kaisha Water-absorbent resin and production process
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
WO1991017200A1 (en) * 1990-04-27 1991-11-14 Nippon Shokubai Co., Ltd. Method and apparatus for continuous granulation of high water absorbing resin powder
EP0454497B1 (en) * 1990-04-27 1997-02-26 Nippon Shokubai Co., Ltd. Method for production of salt-resistant absorbent resin
DE4020780C1 (enExample) * 1990-06-29 1991-08-29 Chemische Fabrik Stockhausen Gmbh, 4150 Krefeld, De
DE69108804T2 (de) * 1990-07-17 1995-08-24 Sanyo Chemical Ind Ltd Verfahren zur Herstellung von Wasser absorbierenden Harzen.
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 (enExample) * 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
ES2234068T5 (es) * 1992-06-10 2011-01-24 Nippon Shokubai Co., Ltd. Método de producción de una resina hidrofílica.
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
US5338766A (en) * 1993-03-26 1994-08-16 The Procter & Gamble Company Superabsorbent polymer foam
US5328935A (en) * 1993-03-26 1994-07-12 The Procter & Gamble Company Method of makig a superabsorbent polymer foam
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
DE69428833T2 (de) 1993-06-18 2002-07-11 Sanyo Chemical Industries, Ltd. Absorbierende Zusammensetzung und Wegwerfwindel mit dieser Zusammensetzung
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
US5985944A (en) * 1994-12-08 1999-11-16 Nippon Shokubai Co., Ltd. Water-absorbent resin, process for production thereof, and water-absorbent resin composition
EP0801650A4 (en) * 1994-12-22 1998-05-06 Smithkline Beecham Corp FIBRINOGEN RECEPTOR ANTAGONISTS
EP0780424B2 (en) * 1995-07-07 2012-08-01 Nippon Shokubai Co., Ltd. Water absorbent powder and process for the production thereof
US6107358A (en) * 1996-08-23 2000-08-22 Nippon Shokubai Co., Ltd. Water-absorbent resin and method for production thereof
EP0876888B1 (en) * 1996-10-24 2012-12-12 Nippon Shokubai Co., Ltd. Process for producing water-absorbing resins
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
EP1072630B1 (en) 1999-07-26 2004-12-01 Nippon Shokubai Co., Ltd. Water-absorbing composition and its use
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
TWI278480B (en) * 1999-12-15 2007-04-11 Nippon Catalytic Chem Ind 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
DE10016041A1 (de) 2000-03-31 2001-10-04 Stockhausen Chem Fab Gmbh Pulverförmige an der Oberfläche vernetzte Polymerisate
CN100471526C (zh) * 2000-03-31 2009-03-25 施托克赫森有限公司 包括在表面上交联的粉末聚合物的吸液吸收层
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
EP1347790A1 (de) * 2000-12-29 2003-10-01 Basf Aktiengesellschaft Aborbierende zusammensetzungen
US7507475B2 (en) * 2001-03-07 2009-03-24 Evonik Stockhausen Gmbh Pulverulent polymers crosslinked on the surface
ES2271287T3 (es) * 2001-06-28 2007-04-16 Basf Aktiengesellschaft Hidrogeles acidos altamente capaces de hincharse.
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
CN1322902C (zh) 2002-08-23 2007-06-27 巴斯福股份公司 超吸收性聚合物及其制备方法

Also Published As

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

Similar Documents

Publication Publication Date Title
JP4640923B2 (ja) 粒子状吸水性樹脂組成物の製造方法
JP7083020B2 (ja) 吸水性樹脂粉末、及びその製造方法
KR100697944B1 (ko) 수분-흡수제
JP5047616B2 (ja) 吸水剤およびその製造方法
JP5635397B2 (ja) 吸水性樹脂を主成分とする粒子状吸水剤の製造方法
JP5090572B2 (ja) 吸水剤の製法
US7285615B2 (en) Particulate water-absorbent resin composition
EP2546286B1 (en) Method for manufacturing a water-absorbing resin
JPWO2019221154A1 (ja) 吸水性樹脂粒子の製造方法
JP5064032B2 (ja) 吸水性樹脂造粒物の製造方法および吸水性樹脂造粒物
EP1840157A1 (en) Production method for water-absorbing resin composition
KR20150056572A (ko) 폴리아크릴산(염)계 흡수제의 제조 방법 및 그 흡수제
WO2012002455A1 (ja) ポリアクリル酸系吸水性樹脂及びその製造方法
CN107428949A (zh) 聚丙烯酸(盐)系吸水性树脂粉末及其制造方法、以及其评价方法
JP2004261797A (ja) 吸水剤
JP2001079829A (ja) 吸水性樹脂およびその製造方法
JP2015048386A (ja) 吸水性樹脂の微粉砕方法及び耐塩性に優れた吸水性樹脂
JPH11349687A (ja) 粒子状含水ゲル状重合体および吸水性樹脂の製造方法
JPH11349687A5 (enExample)
JPWO2020145383A1 (ja) 吸水剤、及び吸水剤の製造方法
JP2005081204A (ja) 吸水性樹脂組成物の製造方法
JP2000007790A (ja) 吸水性樹脂の製造方法
JP4097754B2 (ja) 吸水性樹脂の製造方法
JP2005272653A (ja) 含水ゲルの細粒化方法および細粒化装置
JPH11209421A (ja) 吸水性樹脂の製造方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070709

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070709

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20070709

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100128

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100706

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20100830

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20100902

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101004

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101124

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101125

R150 Certificate of patent or registration of utility model

Ref document number: 4640923

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131210

Year of fee payment: 3

EXPY Cancellation because of completion of term