MX9703448A - Polimero anionico. - Google Patents

Polimero anionico.

Info

Publication number
MX9703448A
MX9703448A MX9703448A MX9703448A MX9703448A MX 9703448 A MX9703448 A MX 9703448A MX 9703448 A MX9703448 A MX 9703448A MX 9703448 A MX9703448 A MX 9703448A MX 9703448 A MX9703448 A MX 9703448A
Authority
MX
Mexico
Prior art keywords
polysaccharide
cross
reacting
water
remains insoluble
Prior art date
Application number
MX9703448A
Other languages
English (en)
Other versions
MXPA97003448A (es
Inventor
Giancarlo Fornasari
Giangiacomo Torri
Giovanni Carlucci
Alessandro Gagliardini
Original Assignee
Procter & Gamble
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 Procter & Gamble filed Critical Procter & Gamble
Publication of MX9703448A publication Critical patent/MX9703448A/es
Publication of MXPA97003448A publication Critical patent/MXPA97003448A/es

Links

Classifications

    • 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
    • A61L15/28—Polysaccharides or their derivatives
    • 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
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H5/00—Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium
    • C07H5/04—Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium to nitrogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H5/00—Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium
    • C07H5/08—Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium to sulfur, selenium or tellurium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/005—Crosslinking of cellulose derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00—Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • C08B5/14—Cellulose sulfate

Abstract

La invencion se refiere a un polisacárido anionico que tiene características superabsorbentes, estando su polisacárido sustituido por grupos sulfato y siendo el polisacárido reticulado a un grado suficiente para que permanezca insoluble en agua. El polisacárido es de preferencia celulosa. El polisacárido anionico puede ser elaborado mediante un proceso que comprende (I) hacer reaccionar polisacárido con un complejo -SO3 de piridina en un solvente; seguido por (ii) hacer reaccionar con un agente de reticulacion para proporcionar un grado de reticulacion suficiente que el producto permanezca insoluble en agua. Los polisacáridos sulfonados muestran propiedades superabsorbentes muy independientes del pH sobre una escala amplia y pueden ser utilizados en aplicaciones donde se desea absorber líquidos acuosos que contienen sal, por ejemplo en pañales y productos catameniales.
MXPA/A/1997/003448A 1994-11-10 1997-05-09 Polimero anionico MXPA97003448A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TOTO94A000892 1994-11-10
IT94TO000892A IT1267497B1 (it) 1994-11-10 1994-11-10 Polimero anionico, ad esempio di tipo superassorbente e relativo procedimento di produzione.

Publications (2)

Publication Number Publication Date
MX9703448A true MX9703448A (es) 1998-07-31
MXPA97003448A MXPA97003448A (es) 1998-11-09

Family

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Also Published As

Publication number Publication date
KR970707137A (ko) 1997-12-01
CA2204889A1 (en) 1996-05-23
AU4156496A (en) 1996-06-06
EP0791002A4 (en) 1998-10-07
WO1996015137A1 (en) 1996-05-23
EP0791002A1 (en) 1997-08-27
JPH10509754A (ja) 1998-09-22
ITTO940892A0 (it) 1994-11-10
ITTO940892A1 (it) 1996-05-10
IT1267497B1 (it) 1997-02-05

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Legal Events

Date Code Title Description
FA Abandonment or withdrawal