TW200738758A - Method for production of modified water absorbent resin - Google Patents

Method for production of modified water absorbent resin

Info

Publication number
TW200738758A
TW200738758A TW096112002A TW96112002A TW200738758A TW 200738758 A TW200738758 A TW 200738758A TW 096112002 A TW096112002 A TW 096112002A TW 96112002 A TW96112002 A TW 96112002A TW 200738758 A TW200738758 A TW 200738758A
Authority
TW
Taiwan
Prior art keywords
absorbent resin
water absorbent
water
production
resin composition
Prior art date
Application number
TW096112002A
Other languages
Chinese (zh)
Inventor
Yoshiro Mitsukami
Makoto Matsumoto
Taku Iwamura
Original Assignee
Nippon Catalytic Chem Ind
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 Catalytic Chem Ind filed Critical Nippon Catalytic Chem Ind
Publication of TW200738758A publication Critical patent/TW200738758A/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
    • 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
    • C08J2333/04—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 esters
    • C08J2333/06—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 esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/08—Homopolymers or copolymers of acrylic acid esters

Abstract

This invention is to provide a method for producing a modified water absorbent resin having excellent production efficiency, and manifesting excellent absorbency against pressure, absorption speed, gel strength, a liquid permeability, and the like. This invention relates to a method for the production of a modified water absorbent resin, which comprises (a) 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 (b) an irradiating step comprising irradiating said water absorbent resin composition obtained in the mixing step with active energy rays, wherein a 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 is controlled to a level of not lower than 3.0% by weight based on 100% by weight of the water absorbent resin.
TW096112002A 2006-04-10 2007-04-04 Method for production of modified water absorbent resin TW200738758A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006108081 2006-04-10
JP2006157577 2006-06-06

Publications (1)

Publication Number Publication Date
TW200738758A true TW200738758A (en) 2007-10-16

Family

ID=38609490

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096112002A TW200738758A (en) 2006-04-10 2007-04-04 Method for production of modified water absorbent resin

Country Status (3)

Country Link
JP (1) JP2009533485A (en)
TW (1) TW200738758A (en)
WO (1) WO2007119730A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007120561A2 (en) * 2006-04-10 2007-10-25 The Procter & Gamble Company An absorbent member comprising a modified water absorbent resin
CN114031819B (en) * 2021-11-25 2022-10-21 东莞市兆科电子材料科技有限公司 Hydrogel and preparation method and application thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH078883B2 (en) * 1986-06-04 1995-02-01 大洋漁業株式会社 Method for producing modified water absorbent resin
JPS63260907A (en) * 1987-04-17 1988-10-27 Mitsubishi Petrochem Co Ltd Manufacture of highly water-absorptive polymer
JP4324055B2 (en) * 2003-08-27 2009-09-02 株式会社日本触媒 Method for producing surface-treated particulate water-absorbing resin
JP2007056071A (en) * 2005-08-22 2007-03-08 Procter & Gamble Co Method for preparing modified water absorbent resin
JP2007077366A (en) * 2005-09-16 2007-03-29 Procter & Gamble Co Method for producing water absorbent

Also Published As

Publication number Publication date
JP2009533485A (en) 2009-09-17
WO2007119730A1 (en) 2007-10-25

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