AGRICULTURAL COVERING MATERIAL HAVING EXCELLENT DURABILITY

PURPOSE:To obtain an agricultural covering material useful for culturing fruit vegetables such as cucumber, melon or tomato, flowers such as rose and trees, spreadable for a long period of time, preventing transmission of ultraviolet light, having a high transmission of visible light, containing fin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HARASAWA ISAMU, ONISHI YASUAKI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AGRICULTURE ANIMAL HUSBANDRY APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED FISHING FORESTRY GENERAL PROCESSES OF COMPOUNDING HORTICULTURE HUMAN NECESSITIES HUNTING INORGANIC CHEMISTRY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TRAPPING WATERING WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain an agricultural covering material useful for culturing fruit vegetables such as cucumber, melon or tomato, flowers such as rose and trees, spreadable for a long period of time, preventing transmission of ultraviolet light, having a high transmission of visible light, containing fine powder of cerium oxide. CONSTITUTION:This agricultural covering material comprises a fluororesin film having a coated layer containing 0.01-10wt.% (preferably 0.5-95-% fine powder of cerium oxide) capable of preventing at least 30% transmission of ultraviolet light at least at 300-330nm at least one side and has at least 70% transmission of visible light at 400-80nm. The fluororesin film preferably comprises an ethylene/tetrafluoroethylene-based copolymer obtained by polymerizing ethylene with tetrafluoroethylene in the molar ratio of 40/60-60/40 and optionally further