CELLULOSE ETHER FILM

PROBLEM TO BE SOLVED: To provide a cellulose ether film which does not precipitate gelling auxiliary agent during long storage period, can surely keep its good appearance for a long time, and is satisfactorily applicable as a film for a hard capsule. SOLUTION: This cellulose film uses, as a base mat...

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Bibliographische Detailangaben
Hauptverfasser:	TANJIYOU MASARU, MATSUURA SEINOSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a cellulose ether film which does not precipitate gelling auxiliary agent during long storage period, can surely keep its good appearance for a long time, and is satisfactorily applicable as a film for a hard capsule. SOLUTION: This cellulose film uses, as a base material, a cellulose ether prepared by replacing a part of hydroxide group of a cellulose with an alkyl group and/or an hydroxyalkyl group, and compounding a gelling agent and a gelling auxiliary agent, and in which the total content of alkoxyl group and hydroxyalkoxyl group is controlled to not higher than 37.6 wt.%.