Superabsorbent material and method for producing said material

The invention provides a process of producing a superabsorbent polysaccharide derivative by oxidation of a alpha -glucan, glucomannan or galactomannan to introduce aldehyde functions, the oxidised polysaccharide subsequently being reacted with sulphur dioxide or an equivalent thereof to produce a hy...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HARM JAN THIEWES, JEFFREY WILSON THORNTON, ARIE CORNELIS BESEMER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention provides a process of producing a superabsorbent polysaccharide derivative by oxidation of a alpha -glucan, glucomannan or galactomannan to introduce aldehyde functions, the oxidised polysaccharide subsequently being reacted with sulphur dioxide or an equivalent thereof to produce a hydroxysulphonated polysaccharide. The polysaccharide may be crosslinked before or after the oxidation. The preferred polysaccharide is starch or guar.