DE69927629D1 - Verfahren zur Oberflächenvernetzung eines wasserabsorbierenden Harzes - Google Patents

Verfahren zur Oberflächenvernetzung eines wasserabsorbierenden Harzes

Info

Publication number
DE69927629D1
DE69927629D1 DE69927629T DE69927629T DE69927629D1 DE 69927629 D1 DE69927629 D1 DE 69927629D1 DE 69927629 T DE69927629 T DE 69927629T DE 69927629 T DE69927629 T DE 69927629T DE 69927629 D1 DE69927629 D1 DE 69927629D1
Authority
DE
Germany
Prior art keywords
water
absorbent resin
surface crosslinking
crosslinking
absorbent
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
DE69927629T
Other languages
English (en)
Other versions
DE69927629T2 (de
Inventor
Kunihiko Ishizaki
Teruyuki Kanto
Shigeru Sakamoto
Nobuyuki Harada
Kazuhisa Hitomi
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
Application filed by Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Application granted granted Critical
Publication of DE69927629D1 publication Critical patent/DE69927629D1/de
Publication of DE69927629T2 publication Critical patent/DE69927629T2/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
    • C08J3/24—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
    • 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
    • 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
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
DE69927629T 1998-02-18 1999-02-17 Verfahren zur Oberflächenvernetzung eines wasserabsorbierenden Harzes Expired - Lifetime DE69927629T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3619798 1998-02-18
JP3619798 1998-02-18

Publications (2)

Publication Number Publication Date
DE69927629D1 true DE69927629D1 (de) 2006-02-23
DE69927629T2 DE69927629T2 (de) 2006-06-22

Family

ID=12463014

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69927629T Expired - Lifetime DE69927629T2 (de) 1998-02-18 1999-02-17 Verfahren zur Oberflächenvernetzung eines wasserabsorbierenden Harzes

Country Status (3)

Country Link
US (1) US6254990B1 (de)
EP (1) EP0937739B1 (de)
DE (1) DE69927629T2 (de)

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EP0812873B2 (de) 1995-12-27 2018-10-24 Nippon Shokubai Co., Ltd. Wasser-absorbierungsmittel und verfahren und vorrichtung zu dessen herstellung
US6107358A (en) 1996-08-23 2000-08-22 Nippon Shokubai Co., Ltd. Water-absorbent resin and method for production thereof

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US6254990B1 (en) 2001-07-03
EP0937739A2 (de) 1999-08-25
DE69927629T2 (de) 2006-06-22
EP0937739A3 (de) 2000-06-07
EP0937739B1 (de) 2005-10-12

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