WO2007120561A3 - An absorbent member comprising a modified water absorbent resin - Google Patents

An absorbent member comprising a modified water absorbent resin Download PDF

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Publication number
WO2007120561A3
WO2007120561A3 PCT/US2007/008475 US2007008475W WO2007120561A3 WO 2007120561 A3 WO2007120561 A3 WO 2007120561A3 US 2007008475 W US2007008475 W US 2007008475W WO 2007120561 A3 WO2007120561 A3 WO 2007120561A3
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent resin
water absorbent
water
weight
good
Prior art date
Application number
PCT/US2007/008475
Other languages
French (fr)
Other versions
WO2007120561A2 (en
Inventor
Makoto Matsumoto
Yoshiro Mitsukami
Taku Iwamura
Original Assignee
Procter & Gamble
Makoto Matsumoto
Yoshiro Mitsukami
Taku Iwamura
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
Priority claimed from JP2006108083A external-priority patent/JP2007277466A/en
Priority claimed from JP2006157582A external-priority patent/JP2007326912A/en
Application filed by Procter & Gamble, Makoto Matsumoto, Yoshiro Mitsukami, Taku Iwamura filed Critical Procter & Gamble
Priority to MX2008013041A priority Critical patent/MX2008013041A/en
Priority to JP2009504294A priority patent/JP4928602B2/en
Priority to EP07754914A priority patent/EP2004732A2/en
Priority to CA002649299A priority patent/CA2649299A1/en
Publication of WO2007120561A2 publication Critical patent/WO2007120561A2/en
Publication of WO2007120561A3 publication Critical patent/WO2007120561A3/en

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
    • C08J3/28—Treatment by wave energy or particle radiation
    • 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
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Graft Or Block Polymers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Polymerisation Methods In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

This invention is to provide an absorbent member and a method for making such an absorbent member. The absorbent member comprises modified water absorbent having good production efficiency, good absorbency against pressure, good absorption speed, gel strength, good liquid permeability, and the like. The modified water absorbent resin is made by a method, which comprises (i) a mixing step comprising mixing a water absorbent resin, water, and a water-soluble radical polymerization initiator without addition of an ethylenically unsaturated monomer, to obtain a water absorbent resin composition, and (ii) an irradiating step comprising irradiating said water absorbent resin composition obtained in the mixing step with active energy rays, wherein the surface water content of said water absorbent resin in said water absorbent resin composition at least at any point of time in the irradiating step (ii) is controlled to a level of not lower than 3.0% by weight based on 100% by weight of the water absorbent resin. Preferably, the amount of water mixed in said step (i) exceeds 20 parts by weight and is not more than 100 parts by weight based on 100 parts by weight of the water absorbent resin.
PCT/US2007/008475 2006-04-10 2007-04-04 An absorbent member comprising a modified water absorbent resin WO2007120561A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MX2008013041A MX2008013041A (en) 2006-04-10 2007-04-04 An absorbent member comprising a modified water absorbent resin.
JP2009504294A JP4928602B2 (en) 2006-04-10 2007-04-04 Absorbent member provided with modified absorbent resin
EP07754914A EP2004732A2 (en) 2006-04-10 2007-04-04 An absorbent member comprising a modified water absorbent resin
CA002649299A CA2649299A1 (en) 2006-04-10 2007-04-04 An absorbent member comprising a modified water absorbent resin

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2006108083A JP2007277466A (en) 2006-04-10 2006-04-10 Method for producing modified water absorbent resin
JP2006-108083 2006-04-10
JP2006157582A JP2007326912A (en) 2006-06-06 2006-06-06 Method for producing modified water-absorbing resin
JP2006-157582 2006-06-06

Publications (2)

Publication Number Publication Date
WO2007120561A2 WO2007120561A2 (en) 2007-10-25
WO2007120561A3 true WO2007120561A3 (en) 2008-01-03

Family

ID=38515743

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/008475 WO2007120561A2 (en) 2006-04-10 2007-04-04 An absorbent member comprising a modified water absorbent resin

Country Status (6)

Country Link
US (2) US7745507B2 (en)
EP (1) EP2004732A2 (en)
JP (1) JP4928602B2 (en)
CA (1) CA2649299A1 (en)
MX (1) MX2008013041A (en)
WO (1) WO2007120561A2 (en)

Families Citing this family (15)

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JP4564284B2 (en) * 2003-06-03 2010-10-20 株式会社日本触媒 Manufacturing method of water absorbing material
US8080705B2 (en) 2004-07-28 2011-12-20 The Procter & Gamble Company Superabsorbent polymers comprising direct covalent bonds between polymer chain segments and method of making them
EP1669394A1 (en) 2004-12-10 2006-06-14 The Procter & Gamble Company Superabsorbent polymer particles with improved surface cross-linking and hydrophilicity and method of making them
WO2007120561A2 (en) 2006-04-10 2007-10-25 The Procter & Gamble Company An absorbent member comprising a modified water absorbent resin
WO2008102322A2 (en) 2007-02-22 2008-08-28 The Procter & Gamble Company Method of surface treating particulate material using electromagnetic radiation
WO2009123197A1 (en) * 2008-03-31 2009-10-08 株式会社日本触媒 Method of manufacturing particulate water absorbent with water-absorbent resin as main ingredient, and manufacturing apparatus therefor
EP2163266A1 (en) 2008-09-12 2010-03-17 The Procter & Gamble Absorbent article comprising water-absorbing material
US8562862B2 (en) * 2008-09-12 2013-10-22 Basf Se Water absorbing material
US20110319849A1 (en) * 2011-07-01 2011-12-29 Dimitris Ioannis Collias Absorbent article comprising a synthetic polymer derived from a renewable resource and methods of producing said article
DE102011086522A1 (en) * 2011-11-17 2013-05-23 Evonik Degussa Gmbh Superabsorbent polymers for highly filled or fiber-free hygiene articles
DE102013003755A1 (en) * 2013-03-06 2014-09-11 Carl Freudenberg Kg ventilation insert
KR102468196B1 (en) * 2018-11-26 2022-11-17 주식회사 엘지화학 Super absorbent polymer and method for preparing the same
EP3936530A4 (en) * 2019-03-08 2022-12-21 Sumitomo Seika Chemicals Co., Ltd. Absorbent body, absorbent article and method for adjusting permeation speed
WO2021080575A1 (en) * 2019-10-23 2021-04-29 Kimberly-Clark Worldwide, Inc. Superabsorbent material absorbent capacity increase with use of selected salts
CN110975818B (en) * 2019-12-04 2023-02-24 中国非金属矿工业有限公司 Bentonite composite high-water-absorption pad and preparation method thereof

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