DRAWN CONTAINER

To provide a drawn container that has superior drawing blow moldability, high container rigidity, and small container shrinkage after high-temperature sterilization processing.SOLUTION: A drawn container is formed of a propylene-based polymer composition (A) including: 0.5-45 mass% of a propylene-ba...

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Bibliographische Detailangaben
Hauptverfasser:	NAMITO KAZUTERU, KOMATSU KUNIHIKO, SHIBA EIJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR 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 HANDLING THIN OR FILAMENTARY MATERIAL MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide a drawn container that has superior drawing blow moldability, high container rigidity, and small container shrinkage after high-temperature sterilization processing.SOLUTION: A drawn container is formed of a propylene-based polymer composition (A) including: 0.5-45 mass% of a propylene-based polymer (a1) of 10-12 dl/g in intrinsic viscosity [η] measured in a tetralin solvent at 135°C and 55-99.5 mass% of a propylene-based polymer (a2) of 0.5-3.5 dl/g in intrinsic viscosity [η] measured in the tetralin solution at 135°C (where a total mount of the propylene copolymer (a1) and propylene copolymer (a2) is 100 mass%).SELECTED DRAWING: None 【課題】延伸ブロー成形性に優れ、容器の剛性が高く、高温滅菌処理後の容器収縮が小さい延伸容器を提供する。【解決手段】１３５℃、テトラリン溶媒中で測定される極限粘度［η］が１０〜１２ｄｌ／ｇの範囲にあるプロピレン系重合体（ａ１）を０．５〜４５質量％、および１３５℃、テトラリン溶媒中で測定される極限粘度［η］が０．５〜３．５ｄｌ／ｇの範囲にあるプロピレン系重合体（ａ２）を５５〜９９．５質量％〔ただし、プロピレン系重合体（ａ１）とプロピレン系重合体（ａ２）との合計量を１００質量％とする。〕含むプロピレン系重合体組成物（Ａ）からなる延伸容器。【選択図】なし