JP5963684B2 - 改善された色安定性を有する吸水性ポリマー粒子の製造方法 - Google Patents

改善された色安定性を有する吸水性ポリマー粒子の製造方法 Download PDF

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Publication number
JP5963684B2
JP5963684B2 JP2012557508A JP2012557508A JP5963684B2 JP 5963684 B2 JP5963684 B2 JP 5963684B2 JP 2012557508 A JP2012557508 A JP 2012557508A JP 2012557508 A JP2012557508 A JP 2012557508A JP 5963684 B2 JP5963684 B2 JP 5963684B2
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acid
water
polymer particles
absorbing polymer
hydroxy
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JP2013522406A (ja
JP2013522406A5 (enExample
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ヘアファート ノルベルト
ヘアファート ノルベルト
トーマス　ダニエル
ダニエル トーマス
パーチャナ ブートサラ
パーチャナ ブートサラ
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BASF SE
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • 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
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/008—Treatment of solid polymer wetted by water or organic solvents, e.g. coagulum, filter cakes
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/41—Compounds containing sulfur bound to oxygen
    • C08K5/42—Sulfonic acids; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/103—Esters of polyhydric alcohols or polyhydric phenols of trialcohols, e.g. trimethylolpropane tri(meth)acrylate
    • 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
    • C08J2333/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0025—Crosslinking or vulcanising agents; including accelerators

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Dispersion Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
JP2012557508A 2010-03-15 2011-03-14 改善された色安定性を有する吸水性ポリマー粒子の製造方法 Active JP5963684B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10156480.5 2010-03-15
EP10156480 2010-03-15
PCT/EP2011/053764 WO2011113777A1 (de) 2010-03-15 2011-03-14 Verfahren zur herstellung wasserabsorbierender polymerpartikel mit verbesserter farbstabilität

Publications (3)

Publication Number Publication Date
JP2013522406A JP2013522406A (ja) 2013-06-13
JP2013522406A5 JP2013522406A5 (enExample) 2014-05-01
JP5963684B2 true JP5963684B2 (ja) 2016-08-03

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ID=43828317

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JP2012557508A Active JP5963684B2 (ja) 2010-03-15 2011-03-14 改善された色安定性を有する吸水性ポリマー粒子の製造方法

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Country Link
US (1) US8703876B2 (enExample)
EP (1) EP2547705B1 (enExample)
JP (1) JP5963684B2 (enExample)
CN (1) CN102892795B (enExample)
WO (1) WO2011113777A1 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140144259A (ko) * 2012-03-30 2014-12-18 바스프 에스이 색 안정적 초흡수체
JP6805144B2 (ja) * 2014-12-04 2020-12-23 ビーエイエスエフ・ソシエタス・エウロパエアＢａｓｆ Ｓｅ 吸水性ポリマー粒子を懸濁重合によって製造する方法
WO2016143734A1 (ja) * 2015-03-10 2016-09-15 Ｓｄｐグローバル株式会社 水性液体吸収性樹脂の製造方法
WO2016162218A1 (de) * 2015-04-07 2016-10-13 Basf Se Verfahren zur agglomeration von superabsorberpartikeln
KR102576889B1 (ko) * 2016-08-10 2023-09-11 바스프 에스이 초흡수제의 제조 방법
US11813589B2 (en) 2017-11-10 2023-11-14 Basf Se Superabsorbent complexed with aluminum ions
JP7362653B2 (ja) * 2018-04-20 2023-10-17 ビーエーエスエフ ソシエタス・ヨーロピア 超吸収体を製造する方法

Family Cites Families (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567575A (en) 1945-05-19 1951-09-11 Honeywell Regulator Co Resistance measuring apparatus
JPS6018690B2 (ja) 1981-12-30 1985-05-11 住友精化株式会社 吸水性樹脂の吸水性改良方法
JPS58180233A (ja) 1982-04-19 1983-10-21 Nippon Shokubai Kagaku Kogyo Co Ltd 吸収剤
US4734478A (en) 1984-07-02 1988-03-29 Nippon Shokubai Kagaku Kogyo Co., Ltd. Water absorbing agent
DE3713601A1 (de) 1987-04-23 1988-11-10 Stockhausen Chem Fab Gmbh Verfahren zur herstellung eines stark wasserabsorbierenden polymerisats
GB2208387B (en) 1987-07-28 1990-11-14 Dai Ichi Kogyo Seiyaku Co Ltd Process for continuously preparing acrylic polymer gel
US5185413A (en) * 1989-05-16 1993-02-09 Mitsubishi Petrochemical Company Limited Process for producing highly water-absortive polymers
WO1990015830A1 (en) 1989-06-12 1990-12-27 Weyerhaeuser Company Hydrocolloid polymer
AU637470B2 (en) 1990-04-02 1993-05-27 Nippon Shokubai Kagaku Kogyo Co. Ltd. Method for production of fluid stable aggregate
DE4020780C1 (enExample) 1990-06-29 1991-08-29 Chemische Fabrik Stockhausen Gmbh, 4150 Krefeld, De
DK0530438T3 (da) 1991-09-03 1997-08-18 Hoechst Celanese Corp Superabsorberende polymer med forbedrede absorptionsegenskaber
JP3107873B2 (ja) * 1991-09-26 2000-11-13 ユニ・チャーム株式会社 高吸水性ポリマーの経時着色防止方法および経時着色防止剤
DE4138408A1 (de) 1991-11-22 1993-05-27 Cassella Ag Hydrophile, hochquellfaehige hydrogele
JP3045422B2 (ja) 1991-12-18 2000-05-29 株式会社日本触媒 吸水性樹脂の製造方法
US5532323A (en) 1992-03-05 1996-07-02 Nippon Shokubai Co., Ltd. Method for production of absorbent resin
GB9208449D0 (en) 1992-04-16 1992-06-03 Dow Deutschland Inc Crosslinked hydrophilic resins and method of preparation
JP3323558B2 (ja) * 1992-11-06 2002-09-09 三菱化学株式会社 高吸水性樹脂の製造法
US5574121A (en) 1993-06-18 1996-11-12 Nippon Shokubai Co., Ltd. Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate
EP0640330B1 (en) 1993-06-30 2000-05-24 The Procter & Gamble Company Hygienic absorbent articles
JP3606966B2 (ja) * 1995-11-02 2005-01-05 株式会社日本触媒 吸水性樹脂およびその製造方法
DE19646484C2 (de) 1995-11-21 2000-10-19 Stockhausen Chem Fab Gmbh Flüssigkeitsabsorbierende Polymere, Verfahren zu deren Herstellung und deren Verwendung
DE19543368C2 (de) 1995-11-21 1998-11-26 Stockhausen Chem Fab Gmbh Wasserabsorbierende Polymere mit verbesserten Eigenschaften, Verfahren zu deren Herstellung und deren Verwendung
DE19807502B4 (de) 1998-02-21 2004-04-08 Basf Ag Verfahren zur Nachvernetzung von Hydrogelen mit 2-Oxazolidinonen, daraus hergestellte Hydrogele und deren Verwendung
US6265488B1 (en) 1998-02-24 2001-07-24 Nippon Shokubai Co., Ltd. Production process for water-absorbing agent
US6503979B1 (en) 1998-02-26 2003-01-07 Basf Aktiengesellschaft Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones
TW460528B (en) 1998-04-28 2001-10-21 Nippon Catalytic Chem Ind Method for production of shaped hydrogel of absorbent resin
DE19854574A1 (de) 1998-11-26 2000-05-31 Basf Ag Verfahren zur Nachvernetzung von Hydrogelen mit N-Acyl-2-Oxazolidinonen
DE19854573A1 (de) 1998-11-26 2000-05-31 Basf Ag Verfahren zur Nachvernetzung von Hydrogelen mit 2-Oxo-tetrahydro-1,3-oxazinen
JP2000230129A (ja) * 1998-12-11 2000-08-22 Nippon Shokubai Co Ltd 吸水剤組成物
JP2000198809A (ja) * 1998-12-29 2000-07-18 Sanyo Chem Ind Ltd α，β―不飽和カルボン酸（塩）（共）重合体の製造方法
DE60014054T2 (de) * 1999-03-12 2005-02-03 Basf Ag Farbstabile superabsorbierende polymerzusammensetzung
JP2000327926A (ja) * 1999-05-25 2000-11-28 Sanyo Chem Ind Ltd 吸収剤組成物および吸収性物品
US6239230B1 (en) 1999-09-07 2001-05-29 Bask Aktiengesellschaft Surface-treated superabsorbent polymer particles
JP2001081271A (ja) * 1999-09-09 2001-03-27 Toray Ind Inc 透明熱可塑性樹脂組成物
DE19955861A1 (de) 1999-11-20 2001-05-23 Basf Ag Verfahren zur kontinuierlichen Herstellung von vernetzten feinteiligen gelförmigen Polymerisaten
US6979564B2 (en) 2000-10-20 2005-12-27 Millennium Pharmaceuticals, Inc. 80090, human fucosyltransferase nucleic acid molecules and uses thereof
US6809158B2 (en) 2000-10-20 2004-10-26 Nippon Shokubai Co., Ltd. Water-absorbing agent and process for producing the same
CN1230410C (zh) 2001-01-12 2005-12-07 施拖克豪森有限公司 生产和提纯(甲基)丙烯酸的连续法
DE10138150A1 (de) 2001-08-03 2003-02-13 Basf Ag Verfahren zur Herstellung wasserabsorbierender Harze
EP1436335B1 (de) 2001-10-05 2005-01-26 Basf Aktiengesellschaft Verfahren zur vernetzung von hydrogelen mit morpholin-2,3-dionen
DE10204937A1 (de) 2002-02-07 2003-08-21 Stockhausen Chem Fab Gmbh Verfahren zur Nachvernetzung im Bereich der Oberfläche von wasserabsorbierenden Polymeren mit Harnstoffderivaten
DE10204938A1 (de) 2002-02-07 2003-08-21 Stockhausen Chem Fab Gmbh Verfahren zur Nachvernetzung im Bereich der Oberfläche von wasserabsorbierenden Polymeren mit beta-Hydroxyalkylamiden
DE10211686A1 (de) 2002-03-15 2003-10-02 Stockhausen Chem Fab Gmbh (Meth)Acrylsäurekristall und Verfahren zur Herstellung und Aufreinigung von wässriger (Meth)Acrylsäure
DE10225943A1 (de) 2002-06-11 2004-01-08 Basf Ag Verfahren zur Herstellung von Estern von Polyalkoholen
JP2005532430A (ja) 2002-06-11 2005-10-27 ビーエーエスエフ アクチェンゲゼルシャフト ポリアルコキシル化されたトリメチロールプロパンの（メタ）アクリルエステル
MXPA04012180A (es) 2002-06-11 2005-02-25 Basf Ag Esteres (met) acrilicos de glicerina polialcoxilada.
DE10247240A1 (de) 2002-10-10 2004-04-22 Basf Ag Verfahren zur Herstellung von Acrylsäure
TW200500046A (en) 2003-03-26 2005-01-01 Basf Ag Color-stable superabsorbent polymer composition
JP4383086B2 (ja) * 2003-04-28 2009-12-16 三菱レイヨン株式会社 色調に優れた樹脂組成物の製造方法
DE10331450A1 (de) 2003-07-10 2005-01-27 Basf Ag (Meth)acrylsäureester monoalkoxilierter Polyole und deren Herstellung
DE10331456A1 (de) 2003-07-10 2005-02-24 Basf Ag (Meth)acrylsäureester alkoxilierter ungesättigter Polyolether und deren Herstellung
DE10334584A1 (de) 2003-07-28 2005-02-24 Basf Ag Verfahren zur Nachvernetzung von Hydrogelen mit bicyclischen Amidacetalen
JPWO2005012369A1 (ja) * 2003-08-04 2006-09-14 住友精化株式会社 吸水性樹脂の製造方法
DE10355401A1 (de) 2003-11-25 2005-06-30 Basf Ag (Meth)acrylsäureester ungesättigter Aminoalkohole und deren Herstellung
DE102004057874A1 (de) 2004-11-30 2006-06-01 Basf Ag Verfahren zur Nachvernetzung wasserabsorbierender Polymerpartikel
CN101160355B (zh) * 2005-04-12 2011-08-10 株式会社日本触媒 包括聚丙烯酸(聚丙烯酸盐)基吸水树脂作为主要成分的粒状吸水剂、其制造方法、吸水芯，和使用该粒状吸水剂的吸收制品
CN101522720B (zh) 2006-10-05 2012-05-30 巴斯夫欧洲公司 通过聚合单体溶液液滴而制备吸水性聚合物珠粒的方法
WO2008052971A1 (de) 2006-10-31 2008-05-08 Basf Se Regelung eines verfahrens zur herstellung wasserabsorbierender polymerpartikel in einer erwärmten gasphase
WO2008092843A1 (de) 2007-01-29 2008-08-07 Basf Se VERFAHREN ZUR HERSTELLUNG WEIßER UND FARBSTABILER WASSERABSORBIERENDER POLYMERPARTIKEL MIT HOHEM ABSORPTIONSVERMÖGEN UND HOHER FLÜSSIGKEITSLEITFÄHIGKEIT
US20110042612A1 (en) 2007-01-29 2011-02-24 Ulrich Riegel Method for Producing White and Color-Stable Water-Absorbing Polymer Particles Having High Absorbency and High Saline Flow Conductivity
SA08290402B1 (ar) * 2007-07-04 2014-05-22 نيبون شوكوباي كو. ، ليمتد عامل دقائقي ماص للماء وطريقة لتصنيعه
US7816426B2 (en) * 2007-07-16 2010-10-19 Evonik Stockhausen, Llc Superabsorbent polymer compositions having color stability
DE102007053619A1 (de) 2007-11-08 2009-05-20 Evonik Stockhausen Gmbh Wasserabsorbierende Polymergebilde mit verbesserter Farbstabilität
EP2307486B2 (de) * 2008-07-31 2019-10-23 Basf Se Farbstabiler superabsorber
JP2013511608A (ja) * 2009-11-23 2013-04-04 ビーエーエスエフ ソシエタス・ヨーロピア 色安定性が改善された吸水性ポリマー粒子の製造方法
BR112012023050A2 (pt) * 2010-03-15 2016-05-17 Basf Se processo para produzir partículas de polímero que absorvem água, partículas de polímero que absorvem água, e, artigo que absorve fluido
US8852742B2 (en) * 2010-03-15 2014-10-07 Basf Se Water absorbent polymer particles formed by polymerizing droplets of a monomer solution and coated with sulfinic acid, sulfonic acid, and/or salts thereof

Also Published As

Publication number Publication date
US8703876B2 (en) 2014-04-22
CN102892795A (zh) 2013-01-23
WO2011113777A1 (de) 2011-09-22
EP2547705A1 (de) 2013-01-23
JP2013522406A (ja) 2013-06-13
CN102892795B (zh) 2015-11-25
US20110224381A1 (en) 2011-09-15
EP2547705B1 (de) 2014-07-02

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