STRETCH FILM FOR PACKAGING FOOD
PROBLEM TO BE SOLVED: To provide a film which is excellent in characteristics required as a stretch film for packaging food such as molding property, transparency and automatic tray-packaging machine applicability. SOLUTION: This stretch film for packaging food is a laminated film having a core laye...
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| creator | IYA TAKESHI SUGIMOTO HIDEMASA SAKANO HIROSHI |
| description | PROBLEM TO BE SOLVED: To provide a film which is excellent in characteristics required as a stretch film for packaging food such as molding property, transparency and automatic tray-packaging machine applicability. SOLUTION: This stretch film for packaging food is a laminated film having a core layer (A) and both surface layers (B). The core layer (A) contains (1) 10 to 40 wt.% of a crystalline butene-1 polymer, (2) 15 to 70 wt.% of an ethylene-α-olefin copolymer of which the density is 0.93 g/cm3or lower, (3) 10 to 40 wt.% of one kind or more resins selected from a group comprising a petroleum resin, a terpene resin, a coumarone-indene resin, rosin resin, an alkyl-phenol resin and hydrogenated derivatives of them, and (4) 10 to 40 wt.% of a crystalline propylene polymer of which the crystal melting temperature is 160°C or higher. Both surface layers (B) contain an ethylene polymer. COPYRIGHT: (C)2003,JPO |
| format | Patent |
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SOLUTION: This stretch film for packaging food is a laminated film having a core layer (A) and both surface layers (B). The core layer (A) contains (1) 10 to 40 wt.% of a crystalline butene-1 polymer, (2) 15 to 70 wt.% of an ethylene-α-olefin copolymer of which the density is 0.93 g/cm3or lower, (3) 10 to 40 wt.% of one kind or more resins selected from a group comprising a petroleum resin, a terpene resin, a coumarone-indene resin, rosin resin, an alkyl-phenol resin and hydrogenated derivatives of them, and (4) 10 to 40 wt.% of a crystalline propylene polymer of which the crystal melting temperature is 160°C or higher. Both surface layers (B) contain an ethylene polymer. 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| subjects | 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 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 STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING |
| title | STRETCH FILM FOR PACKAGING FOOD |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T08%3A01%3A30IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=IYA%20TAKESHI&rft.date=2003-09-25&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2003267432A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |