ETHYLENE-VINYL ALCOHOL COPOLYMER PARTICLES, METHOD FOR PRODUCING SAME AND USE OF SAME

The present invention relates to ethylene-vinyl alcohol copolymer particles, comprising an ethylene-vinyl alcohol copolymer having an ethylene unit content of 1 mol% or more and less than 20 mol%, a viscosity-average polymerization degree of 200 to 5000, and a saponification degree of 80 to 99.99 mo...

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Bibliographische Detailangaben
Hauptverfasser:	MORIKAWA, Keisuke, TANIDA, Tatsuya, INADA, Seisuke, NAKAMAE, Masato
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES GENERAL PROCESSES OF COMPOUNDING INKS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to ethylene-vinyl alcohol copolymer particles, comprising an ethylene-vinyl alcohol copolymer having an ethylene unit content of 1 mol% or more and less than 20 mol%, a viscosity-average polymerization degree of 200 to 5000, and a saponification degree of 80 to 99.99 mol%, wherein a crystallinity in water Cw (30 °C) at 30 °C and a crystallinity in water Cw (70 °C) at 70 °C as determined by pulse NMR satisfy formula (I). There is thus provided ethylene-vinyl alcohol copolymer particles having excellent solubility in water and excellent gas barrier performance.