VINYLIDENE CHLORIDE COPOLYMER LATEX AND FILM FOR BLISTER PACK

Provided is a film for a blister pack having barrier capability that is excellent in terms of impact resistance and thermal stability. Also provided is a vinylidene chloride polymer-containing latex that is ideal for producing the film. The coating layer of the film for a blister pack, and the latex...

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA YOKO, YAGI YOSUKE, KAMEYAMA KOICHI, FURUKAWA MITSUYUKI, KAWASAKI EIICHI
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON 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 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
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Beschreibung
Zusammenfassung:	Provided is a film for a blister pack having barrier capability that is excellent in terms of impact resistance and thermal stability. Also provided is a vinylidene chloride polymer-containing latex that is ideal for producing the film. The coating layer of the film for a blister pack, and the latex, comprise a vinylidene chloride copolymer having a weight-average molecular weight Mw between 120,000 and 300,000 that is obtained by emulsion polymerization of 70 to 95 parts by mass of vinylidene chloride and 30 to 5 parts by mass of one or more other monomers capable of copolymerization with the vinylidene chloride (such that the total amount of vinylidene chloride and other monomer is 100 parts by mass). L'invention concerne un film pour un emballage-coque ayant une capacité de protection excellente en termes de résistance aux chocs et de stabilité thermique. L'invention porte également sur un latex contenant un polymère de chlorure de vinylidène qui est idéal pour la production du film. La couche de revêtement du film pour un emballage-coque et le latex comprennent un copolymère de chlorure de vinylidène ayant un poids moléculaire (Mw) moyen en poids entre 120 000 et 300 000, qui est obtenu par polymérisation en émulsion de 70 à 95 parties en masse de chlorure de vinylidène et de 30 à 5 parties en masse d'un ou de plusieurs autres monomères aptes à la copolymérisation avec le chlorure de vinylidène (de sorte que la quantité totale de chlorure de vinylidène et d'autres monomères soit de 100 parties en masse).