AR017661A1 - AN ABSORBENT FOAM, THE ABSORBENT ARTICLE CONTAINING IT AND THE PROCESS TO PREPARE THE SAME - Google Patents

AN ABSORBENT FOAM, THE ABSORBENT ARTICLE CONTAINING IT AND THE PROCESS TO PREPARE THE SAME

Info

Publication number
AR017661A1
AR017661A1 ARP980105939A ARP980105939A AR017661A1 AR 017661 A1 AR017661 A1 AR 017661A1 AR P980105939 A ARP980105939 A AR P980105939A AR P980105939 A ARP980105939 A AR P980105939A AR 017661 A1 AR017661 A1 AR 017661A1
Authority
AR
Argentina
Prior art keywords
absorbent foam
absorbent
foam
polymer
water
Prior art date
Application number
ARP980105939A
Other languages
Spanish (es)
Original Assignee
Kimberly Clark Co
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
Priority claimed from US08/978,263 external-priority patent/US5948829A/en
Priority claimed from US08/977,918 external-priority patent/US5985434A/en
Application filed by Kimberly Clark Co filed Critical Kimberly Clark Co
Publication of AR017661A1 publication Critical patent/AR017661A1/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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • 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
    • 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
    • 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
    • A61L15/425—Porous materials, e.g. foams or sponges
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/052—Inducing phase separation by thermal treatment, e.g. cooling a solution
    • 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

Abstract

Se revela una espuma absorbente que exhibe propiedades de suavidad y de flexibilidad deseadas y al mismo tiempo es altamente absorbente. En unarealizacion, la espuma absorbente comprende un polímero esponjable en agua e insoluble en agua en donde laespuma absorbente exhibe un valor de EsponjamientoLibre de por lo menos alrededor de 10 gramos de líquido por gramo de espuma absorbente y un valor de Suavidad que es menor que alrededor de 30 gramos de fuerzapor gramo de metro cuadrado de espuma absorbente. En una segunda realizacion, la espuma absorbente tiene un tamano de celda promedio de las celdas en la espumaabsorbente de entre alrededor de 10 micrones y alrededor de 100 micrones y un grosor de pared promedio de las celdas en la espuma absorbente de entre alrededorde 0,1 micron y alrededor de 30 micrones. Dicha espuma absorbente puede usarse en un producto absorbente descartable destinado a la absorcion de fluidos talescomo los fluidos corporales. También se revela un proceso para preparar una espuma absorbente. El proceso generalmente comprende formar una solucion de unpolímero en un solvente, congelar la solucion a una velocidad de enfriamiento relativamente lenta a una temperatura inferior al punto de congelamiento delsolvente, remover el solvente de la solucion congelada, y recuperar el polímero para formar una espuma polimérica esponjable en agua e insoluble en agua.An absorbent foam is revealed that exhibits desired softness and flexibility properties and at the same time is highly absorbent. In one embodiment, the absorbent foam comprises a water-spongeable and water-insoluble polymer wherein the absorbent foam exhibits a Free Sponge value of at least about 10 grams of liquid per gram of absorbent foam and a Softness value that is less than about 30 grams of force per gram of square meter of absorbent foam. In a second embodiment, the absorbent foam has an average cell size of the cells in the absorbent foam of between about 10 microns and about 100 microns and an average wall thickness of the cells in the absorbent foam of between about 0.1 micron and about 30 microns. Said absorbent foam can be used in a disposable absorbent product intended for the absorption of fluids such as body fluids. A process for preparing an absorbent foam is also revealed. The process generally comprises forming a solution of a polymer in a solvent, freezing the solution at a relatively slow cooling rate at a temperature below the freezing point of the solvent, removing the solvent from the frozen solution, and recovering the polymer to form a polymer foam. Water sponge and water insoluble.

ARP980105939A 1997-11-25 1998-11-23 AN ABSORBENT FOAM, THE ABSORBENT ARTICLE CONTAINING IT AND THE PROCESS TO PREPARE THE SAME AR017661A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/978,263 US5948829A (en) 1997-11-25 1997-11-25 Process for preparing an absorbent foam
US08/977,918 US5985434A (en) 1997-11-25 1997-11-25 Absorbent foam

Publications (1)

Publication Number Publication Date
AR017661A1 true AR017661A1 (en) 2001-09-12

Family

ID=27130597

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980105939A AR017661A1 (en) 1997-11-25 1998-11-23 AN ABSORBENT FOAM, THE ABSORBENT ARTICLE CONTAINING IT AND THE PROCESS TO PREPARE THE SAME

Country Status (9)

Country Link
KR (1) KR100552032B1 (en)
AR (1) AR017661A1 (en)
AU (1) AU1421399A (en)
BR (1) BR9815033A (en)
CO (1) CO5070628A1 (en)
DE (1) DE19882845T1 (en)
GB (1) GB2347675B (en)
MX (1) MX229331B (en)
WO (1) WO1999026670A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10055084A1 (en) 2000-11-07 2002-06-13 Basf Ag Flexible, open-celled, microcellular polymer foams
US7053131B2 (en) 2002-12-03 2006-05-30 Kimberly-Clark Worldwide, Inc. Absorbent articles comprising supercritical fluid treated HIPE, I-HIPE foams and other foams
KR100722293B1 (en) * 2004-02-18 2007-05-28 주식회사 바이오폴리텍 Preparation of chito foam dressing for wound repair
WO2009022358A1 (en) 2007-08-10 2009-02-19 Luigi Ambrosio Superabsorbent polymer hydro gels and a method of preparing thereof
EP2163266A1 (en) * 2008-09-12 2010-03-17 The Procter & Gamble Absorbent article comprising water-absorbing material
CA2838006C (en) 2011-06-07 2020-06-02 Gelesis Ip, Lp Method for producing hydrogels
US9855294B2 (en) 2014-06-20 2018-01-02 Gelesis, Llc Methods for treating overweight or obesity
BR112017016200B1 (en) 2015-01-29 2022-09-20 Gelesis, Llc CARBOXYMETHYL CELLULOSE CROSS-LINKED WITH CITRIC ACID AND ITS USE, METHOD FOR ITS PRODUCTION AND PHARMACEUTICAL COMPOSITION
US10729600B2 (en) 2015-06-30 2020-08-04 The Procter & Gamble Company Absorbent structure
WO2017079601A1 (en) 2015-11-04 2017-05-11 The Procter & Gamble Company Absorbent structure
JP2018535743A (en) * 2015-11-04 2018-12-06 ザ プロクター アンド ギャンブル カンパニー Thin flexible absorbent article
US11173078B2 (en) 2015-11-04 2021-11-16 The Procter & Gamble Company Absorbent structure
JP7132128B2 (en) 2016-04-25 2022-09-06 ジェレシス，エルエルシー How to treat constipation
CN113929819B (en) * 2021-11-11 2024-01-09 军事科学院军事医学研究院环境医学与作业医学研究所 Chitosan polyacrylamide composite porous hydrogel, metal ion detection reagent, and preparation method and application thereof
KR102485144B1 (en) * 2022-03-16 2023-01-06 주식회사 큐에이치바이오 Dermal filler composition containing hyaluronic acid and method for manufacturing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280079A (en) * 1986-11-20 1994-01-18 Allied Colloids Limited Absorbent products and their manufacture
ES2118219T3 (en) * 1991-12-20 1998-09-16 Allied Signal Inc LOW DENSITY MATERIALS THAT HAVE A HIGH SPECIFIC SURFACE, AND ARTICLES FORMED FROM THEM FOR USE IN THE RECOVERY OF METALS.

Also Published As

Publication number Publication date
GB2347675B (en) 2002-06-05
WO1999026670A1 (en) 1999-06-03
MX229331B (en) 2005-07-21
CO5070628A1 (en) 2001-08-28
BR9815033A (en) 2000-10-03
DE19882845T1 (en) 2001-06-21
GB2347675A (en) 2000-09-13
GB0015476D0 (en) 2000-08-16
AU1421399A (en) 1999-06-15
KR100552032B1 (en) 2006-02-20
KR20010032398A (en) 2001-04-16
MXPA00005002A (en) 2000-11-01

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