WATER-SOLUBLE FILM

WATER-SOLUBLE FILM

PROBLEM TO BE SOLVED: To provide a water-soluble film wherein its water solubility does not decrease with time even when it is used for unit packaging an acidic sub stance, a chlorine-contg. substance, an agricultural chemical preparation or the like. SOLUTION: This water-soluble film comprises (A)...

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Bibliographische Detailangaben
1. Verfasser: MIYAZAKI HIROTOSHI
Format: Patent
Sprache:eng
Schlagworte:
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
GENERAL PROCESSES OF COMPOUNDING
HANDLING THIN OR FILAMENTARY MATERIAL
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING-UP
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a water-soluble film wherein its water solubility does not decrease with time even when it is used for unit packaging an acidic sub stance, a chlorine-contg. substance, an agricultural chemical preparation or the like. SOLUTION: This water-soluble film comprises (A) 100 pts.wt. modified polyvinyl alcohol having sulfo groups and (B) 0.05-20 pts.wt. pyrogallol or its 1-5C alkyl ester and is used for packaging an acidic substance, a chlorine-contg. susbtance, or an agricultural chemical preparation. A compsn. comprising (A) 100 pts.wt. modified polyvinyl alcohol having sulfo groups and (B) 0.05-20 pts.wt. pyrogallol or its 1-5C alkyl ester is also provided.