DE69514064D1 - Verbesserte wasserabsorbierende Harzpartikeln und deren Herstellung - Google Patents

Verbesserte wasserabsorbierende Harzpartikeln und deren Herstellung

Info

Publication number
DE69514064D1
DE69514064D1 DE69514064T DE69514064T DE69514064D1 DE 69514064 D1 DE69514064 D1 DE 69514064D1 DE 69514064 T DE69514064 T DE 69514064T DE 69514064 T DE69514064 T DE 69514064T DE 69514064 D1 DE69514064 D1 DE 69514064D1
Authority
DE
Germany
Prior art keywords
resin particles
absorbent resin
water
improved water
acrylic acid
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
DE69514064T
Other languages
English (en)
Other versions
DE69514064T2 (de
Inventor
Takashi Sumiya
Masanori Koike
Kenji Tanaka
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.)
Sanyo Chemical Industries Ltd
Original Assignee
Sanyo Chemical Industries 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 Sanyo Chemical Industries Ltd filed Critical Sanyo Chemical Industries Ltd
Application granted granted Critical
Publication of DE69514064D1 publication Critical patent/DE69514064D1/de
Publication of DE69514064T2 publication Critical patent/DE69514064T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C08J3/12—Powdering or granulating
    • C08J3/124—Treatment for improving the free-flowing characteristics
    • 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
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/264—Synthetic macromolecular compounds derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
    • B01J20/267—Cross-linked polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2805—Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3206—Organic carriers, supports or substrates
    • B01J20/3208—Polymeric carriers, supports or substrates
    • B01J20/321—Polymeric carriers, supports or substrates consisting of a polymer obtained by reactions involving only carbon to carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3268—Macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3287—Layers in the form of a liquid
    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/42—Introducing metal atoms or metal-containing groups
    • 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
    • C08J3/12—Powdering or granulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions 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; Compositions of derivatives of such polymers
    • C08L33/02—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
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
DE69514064T 1994-10-05 1995-07-13 Verbesserte wasserabsorbierende Harzpartikeln und deren Herstellung Expired - Lifetime DE69514064T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26828394 1994-10-05

Publications (2)

Publication Number Publication Date
DE69514064D1 true DE69514064D1 (de) 2000-01-27
DE69514064T2 DE69514064T2 (de) 2000-08-24

Family

ID=17456393

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69514064T Expired - Lifetime DE69514064T2 (de) 1994-10-05 1995-07-13 Verbesserte wasserabsorbierende Harzpartikeln und deren Herstellung

Country Status (6)

Country Link
US (1) US5668078A (de)
EP (1) EP0705643B1 (de)
AT (1) ATE187899T1 (de)
DE (1) DE69514064T2 (de)
ES (1) ES2140584T3 (de)
FI (1) FI119180B (de)

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DE19716657A1 (de) * 1997-04-21 1998-10-22 Stockhausen Chem Fab Gmbh Superabsorber mit kontrollierter Absorptionsgeschwindigkeit
US6124391A (en) * 1998-08-18 2000-09-26 Stockhausen Gmbh & Co. Kg Superabsorbent polymers having anti-caking characteristics
EP1072630B1 (de) 1999-07-26 2004-12-01 Nippon Shokubai Co., Ltd. Wasser-absorbierende Zusammensetzung und ihre Verwendung
US7732050B2 (en) * 2001-05-16 2010-06-08 Kao Corporation Silicone-modified water-absorbing polymer particles and method for producing the same
US20040194664A1 (en) 2002-08-05 2004-10-07 Elementis Pigments, Inc. Low sulfur red iron oxide useful as a catalyst or catalyst component and a process for making low sulfur red iron oxide
AU2004210275B2 (en) * 2003-02-10 2006-03-09 Nippon Shokubai Co., Ltd. Particulate water absorbent containing water absorbent resin as a main component
CA2534914A1 (en) 2003-08-06 2005-02-17 Basf Aktiengesellschaft Water-swellable material comprising coated water-swellable polymers
WO2005014697A1 (en) 2003-08-06 2005-02-17 The Procter & Gamble Company Coated water-swellable material
JP2007504851A (ja) 2003-08-06 2007-03-08 ザ プロクター アンド ギャンブル カンパニー コーティングされた水膨潤性材料を含む吸収性物品
EP1518567B1 (de) 2003-09-25 2017-06-28 The Procter & Gamble Company Absorbierende artikel mit flüssigkeitsaufnahmezone und darin beschichteten superabsorbierenden partikeln
KR20060109877A (ko) 2003-10-31 2006-10-23 바스프 악티엔게젤샤프트 혈액- 및(또는) 체액-흡수 하이드로겔
WO2005092956A1 (en) * 2004-03-29 2005-10-06 Nippon Shokubai Co., Ltd. Particulate water absorbing agent with water-absorbing resin as main component
EP1846050A2 (de) * 2005-02-04 2007-10-24 Basf Aktiengesellschaft Verfahren zur herstellung eines wasserabsorbierenden materials mit einer beschichtung aus elastischen, folienbildenden polymeren
TW200635959A (en) * 2005-02-04 2006-10-16 Basf Ag Water swellable material
EP1843797B1 (de) * 2005-02-04 2014-01-22 The Procter and Gamble Company Absorptionsstruktur mit verbessertem wasserabsorbierendem material
JP2008528785A (ja) * 2005-02-04 2008-07-31 ビーエーエスエフ ソシエタス・ヨーロピア 弾性被膜形成ポリマーの塗膜を有する吸水性材料の製造方法
US20080187756A1 (en) * 2005-02-04 2008-08-07 Basf Aktiengesellschaft Water-Absorbing Material Having a Coating of Elastic Film-Forming Polymers
TWI353360B (en) 2005-04-07 2011-12-01 Nippon Catalytic Chem Ind Production process of polyacrylic acid (salt) wate
TWI383008B (zh) * 2005-08-17 2013-01-21 Nippon Catalytic Chem Ind 吸水性樹脂之製造方法及吸水性樹脂以及其利用
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 (de) 2006-03-24 2020-01-08 Nippon Shokubai Co.,Ltd. Wasserabsorbierendes Harz und Verfahren zu seiner Herstellung
EP2010316B1 (de) * 2006-03-27 2021-10-13 Nippon Shokubai Co.,Ltd. Wasserabsorbierendes mittel und wasserabsorbierender kern mit dem wasserabsorbierenden mittel
JP5959794B2 (ja) * 2007-03-05 2016-08-02 株式会社日本触媒 吸水剤及びその製造方法
EP2484439B1 (de) 2009-09-29 2022-12-14 Nippon Shokubai Co., Ltd. Partikelförmiges wasserabsorptionsmittel und verfahren zu seiner herstellung
EP2536766A1 (de) * 2010-02-18 2012-12-26 Dow Corning Corporation Durch siloxan oberflächenmodifiziertes hydrogel und hydrogelmikropartikelzusammensetzungen
CN102762655B (zh) 2010-02-18 2016-05-11 道康宁公司 表面改性的水凝胶和水凝胶微粒
US8329255B2 (en) * 2010-11-05 2012-12-11 Momentive Performance Materials Inc. Durable non-fluorine water repellent agent and process for preparing same
JP6004729B2 (ja) 2012-04-26 2016-10-12 株式会社リブドゥコーポレーション 吸収性物品
CN104582832B (zh) 2012-08-27 2017-10-24 株式会社日本触媒 颗粒状吸水剂及其制造方法
JP6128790B2 (ja) 2012-10-15 2017-05-17 株式会社リブドゥコーポレーション 吸収性物品
JP6128791B2 (ja) * 2012-10-15 2017-05-17 株式会社リブドゥコーポレーション 吸収性物品
CN103866642B (zh) * 2014-02-28 2016-03-09 苏州恒康新材料有限公司 一种纸张柔软剂及其制备方法
WO2015152299A1 (ja) 2014-03-31 2015-10-08 株式会社日本触媒 粒子状吸水剤及びその製造方法

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JPS5761775A (en) * 1980-09-30 1982-04-14 Kanebo Ltd Treatment of porous acrylic fiber
JPS5980459A (ja) * 1982-10-29 1984-05-09 Arakawa Chem Ind Co Ltd 吸水性樹脂粉末組成物
JPS6169854A (ja) * 1984-09-14 1986-04-10 Lion Corp 吸水性樹脂組成物
DE3682088D1 (de) * 1985-03-18 1991-11-28 Mitsubishi Petrochemical Co Verfahren zur herstellung von wasserabsorbierenden polymeren.
JPH0617395B2 (ja) * 1985-05-16 1994-03-09 三菱油化株式会社 高吸水性ポリマ−の製造法
JPS6328977A (ja) * 1986-07-22 1988-02-06 旭化成株式会社 吸水性繊維
JPS63105064A (ja) * 1986-10-22 1988-05-10 Nippon Synthetic Chem Ind Co Ltd:The 高吸水性樹脂組成物
JPS63108031A (ja) * 1986-10-23 1988-05-12 Shinto Paint Co Ltd 熱可塑性樹脂微粒子の製造方法
JP2831648B2 (ja) * 1988-03-31 1998-12-02 住友精化株式会社 吸水性保水材
DE3928858A1 (de) * 1989-08-31 1991-03-07 Beiersdorf Ag Vernetzte hydrogele und verfahren zu deren herstellung
JP3077294B2 (ja) * 1991-09-12 2000-08-14 三菱化学株式会社 吸水性樹脂組成物及びそれを用いてなる吸収性物品
CA2086031A1 (en) 1992-01-28 1993-07-29 Shigeki Ueda Process for producing improved water absorbing resin and resin made by the same
JP3244550B2 (ja) 1992-12-02 2002-01-07 積水化学工業株式会社 バスユニット

Also Published As

Publication number Publication date
ES2140584T3 (es) 2000-03-01
FI953233A (fi) 1996-04-06
EP0705643A1 (de) 1996-04-10
ATE187899T1 (de) 2000-01-15
DE69514064T2 (de) 2000-08-24
FI119180B (fi) 2008-08-29
US5668078A (en) 1997-09-16
FI953233A0 (fi) 1995-06-29
EP0705643B1 (de) 1999-12-22

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