BR0214449A - Agente absorvente de água, processo para produzir o mesmo e absorvedores e artigos absorventes fabricados com o agente absorvente de água - Google Patents

Agente absorvente de água, processo para produzir o mesmo e absorvedores e artigos absorventes fabricados com o agente absorvente de água

Info

Publication number
BR0214449A
BR0214449A BR0214449-2A BR0214449A BR0214449A BR 0214449 A BR0214449 A BR 0214449A BR 0214449 A BR0214449 A BR 0214449A BR 0214449 A BR0214449 A BR 0214449A
Authority
BR
Brazil
Prior art keywords
water
absorbent
absorbing agent
agent
water absorbing
Prior art date
Application number
BR0214449-2A
Other languages
English (en)
Other versions
BR0214449B1 (pt
Inventor
Minekazu Satake
Yoshihisa Ohta
Original Assignee
San Dia Polymers 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 San Dia Polymers Ltd filed Critical San Dia Polymers Ltd
Publication of BR0214449A publication Critical patent/BR0214449A/pt
Publication of BR0214449B1 publication Critical patent/BR0214449B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C08L101/12—Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
    • C08L101/14—Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
    • 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
    • A61L15/24—Macromolecular compounds obtained 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
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • 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
    • 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

Landscapes

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

Abstract

"AGENTE ABSORVENTE DE áGUA, PROCESSO PARA PRODUZIR O MESMO E ABSORVEDORES E ARTIGOS ABSORVENTES FABRICADOS COM O AGENTE ABSORVENTE DE áGUA". A presente invenção refere-se a um agente absorvente de água, compreendendo um polímero reticulado que inclui um monómero vinílico solúvel em água (a~ 1~) e/ou um monómero vinílico (a~ 2~) que é transformado no monómero vinílico solúvel em água (a~ 1~) por hidrólise e um agente de reticulação (b) como uma unidade constituinte essencial, onde as seguintes fórmulas (1) e (2) são satisfeitas: (Y) <242> -1,14(X) + 69,5 (1) (X) = ((X~ 1~)^ 2^ + 4 x(X~ 2~)^ 2^)^ 1/2^ (2) onde (x~ 1~) denota uma quantidade de retenção de água (g/g) do agente absorvente de água após ser embebido em uma solução salina fisiológica por uma hora; (x~ 2~) denota uma quantidade de absorção de água (g/g) do agente absorvente de água após ser embebido em uma solução salina fisiológica sob uma carga de 60 g/cm^ 2^ (0,9 psi) por uma hora; e (Y) denota uma velocidade de permeação de líquido (ml/min) de uma solução salina fisiológica depois que o agente absorvente de água é embebido em uma solução salina fisiológica sob uma carga de 20 g/cm^ 2^ (0,3 psi) por uma hora. O agente absorvente de água permite fácil produção de artigos absorventes que apresentam alto desempenho de absorção em qualquer estado e é adequado para uso em fraldas descartáveis, absorventes higiênicos e outros artigos sanitários.
BRPI0214449-2A 2001-11-20 2002-11-18 Agente absorvente de água, método para produzir o mesmo, bem como absorvedor e artigo absorvente BR0214449B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001355395 2001-11-20
JP2001-355395 2001-11-20
JO0212003 2002-11-18

Publications (2)

Publication Number Publication Date
BR0214449A true BR0214449A (pt) 2004-09-14
BR0214449B1 BR0214449B1 (pt) 2014-03-25

Family

ID=19167108

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0214449-2A BR0214449B1 (pt) 2001-11-20 2002-11-18 Agente absorvente de água, método para produzir o mesmo, bem como absorvedor e artigo absorvente

Country Status (6)

Country Link
US (1) US7361712B2 (pt)
EP (1) EP1457541A4 (pt)
JP (2) JP2003225565A (pt)
CN (1) CN100364493C8 (pt)
BR (1) BR0214449B1 (pt)
WO (1) WO2003044120A1 (pt)

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Also Published As

Publication number Publication date
JP2003225565A (ja) 2003-08-12
US7361712B2 (en) 2008-04-22
CN1589304A (zh) 2005-03-02
WO2003044120A1 (fr) 2003-05-30
EP1457541A1 (en) 2004-09-15
BR0214449B1 (pt) 2014-03-25
CN100364493C8 (zh) 2019-11-08
CN100364493C (zh) 2008-01-30
JP2006110545A (ja) 2006-04-27
US20050080194A1 (en) 2005-04-14
EP1457541A4 (en) 2005-05-25

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