BR9816081A - Resina absorvente resistente a pressão, fralda descartável utilizando a resina e resina absorvente, e método para produção da mesma - Google Patents

Resina absorvente resistente a pressão, fralda descartável utilizando a resina e resina absorvente, e método para produção da mesma

Info

Publication number
BR9816081A
BR9816081A BR9816081-8A BR9816081A BR9816081A BR 9816081 A BR9816081 A BR 9816081A BR 9816081 A BR9816081 A BR 9816081A BR 9816081 A BR9816081 A BR 9816081A
Authority
BR
Brazil
Prior art keywords
pressure
absorbent resin
ratio
under
resin
Prior art date
Application number
BR9816081-8A
Other languages
English (en)
Inventor
Nobuyuki Harada
Kunihiko Ishizaki
Hirotama Fujimaru
Toshimasa Kitayama
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=26437315&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9816081(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 BR9816081A publication Critical patent/BR9816081A/pt

Links

Classifications

    • 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
    • C08F22/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
    • C08F22/02—Acids; Metal salts or ammonium salts thereof, e.g. maleic acid or itaconic acid
    • 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

Landscapes

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

Abstract

<B>RESINA ABSORVENTE RESISTENTE à PRESSãO, FRALDA DESCARTáVEL UTILIZANDO A RESINA, E RESINA ABSORVENTE, E MéTODO PARA PRODUçãO DA MESMA<D> Esta invenção refere-se a uma resina absorvente distringuindo-se notavelmente em afinidade com líquidos aquosos e manifestando grande melhoramento em velocidade de absorção e relação de capacidade de absorção de água sob nenhuma pressão e sob pressão em comparação com resina absorvente convencional, um processo para produção da mesma, e uma fralda descartável utilizando a resina. A resina absorvente resistente à pressão manifesta uma relação de capacidade de absorção de água sob pressão de 30 g/g ou mais para urina artificial sob uma carga de 50 g/cm², e uma relação de absorção resistente à pressão de 0,6 ou mais, em que a relação de absorção resistente à pressão é definida como a relação da proporção de capacidade de absorção de água sob alta pressão para urina artificial sob uma carga de 100 g/cm² para uma relação de capacidade de absorção de água sob pressão para urina artificial sob uma carga de 50 g/cm². O processo para a produção da mesma é caracterizado pela adição de um composto tendo vários dos grupos funcionais capazes de reagir com grupos -COOR a um polímero reticulado absorvente contendo um grupo representado pela fórmula de -COOR em uma concentração de 12 mmol/g em cada R é independentemente átomos de hidrogênio, átomos de metal ou amónio, e a relação molecular de -COOH/ -COOR não é maior de que 0,5.
BR9816081-8A 1997-04-14 1998-04-13 Resina absorvente resistente a pressão, fralda descartável utilizando a resina e resina absorvente, e método para produção da mesma BR9816081A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9606797 1997-04-14
JP15626797 1997-06-13

Publications (1)

Publication Number Publication Date
BR9816081A true BR9816081A (pt) 2001-07-24

Family

ID=26437315

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9816081-8A BR9816081A (pt) 1997-04-14 1998-04-13 Resina absorvente resistente a pressão, fralda descartável utilizando a resina e resina absorvente, e método para produção da mesma

Country Status (8)

Country Link
US (1) US6184433B1 (pt)
EP (1) EP0872491B9 (pt)
KR (1) KR100448569B1 (pt)
CN (1) CN1140548C (pt)
BR (1) BR9816081A (pt)
DE (2) DE69834523T4 (pt)
ID (1) ID20148A (pt)
TW (1) TW538055B (pt)

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Also Published As

Publication number Publication date
TW538055B (en) 2003-06-21
KR19980081396A (ko) 1998-11-25
CN1201041A (zh) 1998-12-09
DE69834523T4 (de) 2007-08-30
ID20148A (id) 1998-10-15
KR100448569B1 (ko) 2004-12-08
EP0872491B1 (en) 2006-05-17
CN1140548C (zh) 2004-03-03
EP0872491B9 (en) 2007-01-10
DE69834523D1 (de) 2006-06-22
US6184433B1 (en) 2001-02-06
EP0872491A1 (en) 1998-10-21
DE69834523T2 (de) 2007-05-03

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