Saponified ethylene-vinyl acetate copolymer and laminate

A saponified ethylene-vinyl acetate copolymer is characterized in that, in the relationship between the heating time and the extrusion rate as measured with a Koka flow tester at at least one temperature higher by 10-80 DEG C than the melting point thereof, it shows an extrusion rate at any time wit...

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Bibliographische Detailangaben
1. Verfasser:	ONISHI, HIDESHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A saponified ethylene-vinyl acetate copolymer is characterized in that, in the relationship between the heating time and the extrusion rate as measured with a Koka flow tester at at least one temperature higher by 10-80 DEG C than the melting point thereof, it shows an extrusion rate at any time within the period of 15 minutes to 2 hours of heating which is 0.1-50 times the extrusion rate at 15 minutes of heating and an extrusion rate at any time within the period of 2-10 hours of heating which is less than 2 times the extrusion rate at 15 minutes of heating and that, in the relationship between the heating time and the torque at at least one temperature higher by 30-60 DEG C than the melting point, it shows, at any time within the range of 1-2 hours of heating, a toruque value within the range of 1/6 to 5/6 of the maximum torque value found within the initial 20 minutes of heating.