JPH05293933

• Main Authors: AKAMATSU MASAHIRO, HIGASHIYA OSAMU, YUKIMOTO TORU
• Format: Patent
• Language: English
• Published: 09.11.1993
• Edition: 5
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; 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 TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HANDLING THIN OR FILAMENTARY MATERIAL; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STORING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To easily obtain a multilayered structure having barrier properties without damaging the excellent moldability of a styrenic resin too much by combining an ethylene/vinyl alcohol copolymer, an adhesive resin and a styrenic resin to laminate them. CONSTITUTION:A multilayered structure is obtained by combining an ethylene/ vinyl alcohol copolymer, an adhesive resin and a styrenic resin to laminate them. In the ethylene/vinyl alcohol copolymer, the occupying ratio of an integrated value from the low temp. side of a heating process DSC peak to 160 deg.C with respect to the integrated value of the whole of peaks is set to 30%. By this constitution, a multilayered structure container extremely high in oxygen barrier properties and suitable for the preservation of food can be efficiently produced in low percent defective and low cost.