BRPI0414531A - absorvedor de água e método de produção do mesmo - Google Patents

absorvedor de água e método de produção do mesmo

Info

Publication number
BRPI0414531A
BRPI0414531A BRPI0414531-3A BRPI0414531A BRPI0414531A BR PI0414531 A BRPI0414531 A BR PI0414531A BR PI0414531 A BRPI0414531 A BR PI0414531A BR PI0414531 A BRPI0414531 A BR PI0414531A
Authority
BR
Brazil
Prior art keywords
water absorber
liquid permeability
water
sym
gel
Prior art date
Application number
BRPI0414531-3A
Other languages
English (en)
Inventor
Kazushi Torii
Hirofumi Shibata
Taku Iwamura
Yoshio Irie
Yorimichi Dairoku
Yoshiro Mitsukami
Sayaka Machida
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34380341&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0414531(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Catalytic Chem Ind filed Critical Nippon Catalytic Chem Ind
Publication of BRPI0414531A publication Critical patent/BRPI0414531A/pt

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
    • 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
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • 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
    • C08F20/00—Homopolymers and 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
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/04—Acids, Metal salts or ammonium salts thereof
    • C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • 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
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/68—Superabsorbents
    • 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

Abstract

"ABSORVEDOR DE áGUA E MéTODO DE PRODUçãO DO MESMO". Um objetivo da presente invenção e a provisão de um absorvedor de água possuindo excelentes propriedades de gel e mostrando excelentes propriedades quando usado em um material de absorção de água de um material sanitário/higiênico, tal como fralda de papel-tecido. Além disso, outro objetivo da presente invenção é a provisão do absorvedor de água que seja seguro e excelente quanto a permeabilidade a líquido e onde é reduzida a quantidade do aperfeiçoador de permeabilidade a líquido para aperfeiçoar a permeabilidade a líquido. O absorvedor de água é fabricado de uma resina absorvedora de água, preparada por um método de polimerização específico e possuindo um alto grau de reticulação, uma propriedade de manutenção de líquido alta e uma resistência a gel alta (sua Pressão de Intumescimento de Camada de Gel é de 3,5 kPa ou mais). Esse absorvedor de água é adicionalmente processado para ter uma distribuição de tamanho de partícula específica (95% em peso ou mais de suas partículas são inferiores a 850 <109>m porém não inferiores a 106 <109>m, e desvio padrão logarítmico ((sym)(sym)) está em uma faixa de 0,25 a 0,45) e então reticulado na superfície. Após isso, é adicionado um aperfeiçoador de permeabilidade a líquido.
BRPI0414531-3A 2003-09-19 2004-09-17 absorvedor de água e método de produção do mesmo BRPI0414531A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003329109 2003-09-19
JP2003329110 2003-09-19
PCT/JP2004/014015 WO2005027986A1 (en) 2003-09-19 2004-09-17 Water absorbent and producing method of same

Publications (1)

Publication Number Publication Date
BRPI0414531A true BRPI0414531A (pt) 2006-11-07

Family

ID=34380341

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0414531-3A BRPI0414531A (pt) 2003-09-19 2004-09-17 absorvedor de água e método de produção do mesmo

Country Status (8)

Country Link
US (2) US7803880B2 (pt)
EP (2) EP2260876B1 (pt)
JP (4) JP4920183B2 (pt)
KR (1) KR100819613B1 (pt)
CN (1) CN100391548C (pt)
BR (1) BRPI0414531A (pt)
TW (1) TWI308570B (pt)
WO (1) WO2005027986A1 (pt)

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