THERMOFORMED CONTAINER AND METHOD FOR MANUFACTURING THE SAME

To provide a thermoformed container that contains an ethylene-vinyl alcohol copolymer (EVOH), has a layer formed using a resin composition in which neck-in and die build-up in melt-forming are suppressed, and has high uniformity of gas barrier property and good appearance.SOLUTION: A thermoformed co...

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Hauptverfasser:	YOSHIDA KENTARO, OKADA KIMIO, OKAMOTO MINORU, HASEGAWA TATSUYA, OSHITA TAMAKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 GENERAL PROCESSES OF COMPOUNDING HANDLING THIN OR FILAMENTARY MATERIAL 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 PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	To provide a thermoformed container that contains an ethylene-vinyl alcohol copolymer (EVOH), has a layer formed using a resin composition in which neck-in and die build-up in melt-forming are suppressed, and has high uniformity of gas barrier property and good appearance.SOLUTION: A thermoformed container has a layer (α) formed of a resin composition, wherein the resin composition contains EVOH (A) and crotonaldehyde (B1), and further contains at least one selected from the group consisting of 2,4-hexadienal (B2) and 2,4,6-octatrienal (B3).SELECTED DRAWING: Figure 1 【課題】エチレン－ビニルアルコール共重合体（ＥＶＯＨ）を含み、溶融成形の際のネックイン及びダイビルドアップが抑制された樹脂組成物を用いて形成された層を有し、ガスバリア性の均一性が高く且つ外観が良好な熱成形容器等の提供。【解決手段】樹脂組成物からなる層（α）を有し、上記樹脂組成物が、ＥＶＯＨ（Ａ）及びクロトンアルデヒド（Ｂ１）を含み、２，４－ヘキサジエナール（Ｂ２）及び２，４，６－オクタトリエナール（Ｂ３）からなる群より選ばれる少なくとも１種をさらに含む、熱成形容器。【選択図】図１