FILM AND MULTI-LAYER LAMINATE EXCELLENT IN DEW CONDENSATION RESISTANCE

PURPOSE:A beautiful, transparent film with excellent dew condensation resistance and gas barrier property, prepd. by compounding an ethylene-vinyl alcohol copolymer resin (EVOH) with a nonionic surfactant of specified HLB. CONSTITUTION:EVOH of ethylene content 25-60mol% and saponificaton degree >...

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Bibliographische Detailangaben
Hauptverfasser:	OOSEKI YUKIO, IGARI KIYOUICHIROU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING 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 THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:A beautiful, transparent film with excellent dew condensation resistance and gas barrier property, prepd. by compounding an ethylene-vinyl alcohol copolymer resin (EVOH) with a nonionic surfactant of specified HLB. CONSTITUTION:EVOH of ethylene content 25-60mol% and saponificaton degree >=90mol% is kneaded with 0.1-1.5wt% nonionic surfactant such as polyoxyethylene stearyl ether of HLB 7-16 by an extruder and pelletized. Then a film or sheet is formed from the resulting pellet. Said film is used for food packaging, etc. as such or as a multi-layer laminated film containing said film in the innermost layer. A resin used in the outermost layer of said laminated film is pref. cellophane for excluding moisture or polypropylene when exclusion of moisture is unnecessary.