Starch hydrogels

A hydrogel forming composition comprises up to 10% by wt. Sago starch, 5 to 7.5% by wt. Polyvinyl pyrrolidone, 5 to 10% by wt. Polyvinyl alcohol, 1 to 3% by wt. Carboxymethyl cellulose, and water. A hydrogel is produced by forming a semi-gel from the composition and exposing it to electron beam or g...

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Bibliographische Detailangaben
Hauptverfasser:	MOHID, NORJANAH, HASHIM, KAMARUDDIN, DAHLAN, KHAIRUL ZAMAN MOHD, BAHARI, KAMARUDIN, ABIDIN, NOR ASILA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR GENERAL PROCESSES OF COMPOUNDING 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 THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A hydrogel forming composition comprises up to 10% by wt. Sago starch, 5 to 7.5% by wt. Polyvinyl pyrrolidone, 5 to 10% by wt. Polyvinyl alcohol, 1 to 3% by wt. Carboxymethyl cellulose, and water. A hydrogel is produced by forming a semi-gel from the composition and exposing it to electron beam or gamma radiation to a total absorbed dose within the range of from 5 to 50 kGy.