MULTILAYER POLYPROPYLENE-BASED STRETCHED FILM

• Main Authors: KITANO KENICHI, SUZUKI TAKESHI, SHIGETA HIROAKI, GOTO YOSHIKI
• Format: Patent
• Language: English; Japanese
• Published: 05.07.2018
• Subjects: ADHESIVES; CHEMISTRY; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; POLISHES; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a multilayer polypropylene-based stretched film which has heat fusion bonding strength durable even during high-speed automatic packaging, and is excellent in smoothness.SOLUTION: The multilayer polypropylene-based stretched film containing a base material layer 3 and a heat fusion bonding layer 2 is provided, in which the heat fusion bonding layer 2 is in the outermost layer of the film, the base material layer 3 contains a polypropylene-based resin, component (A) being aliphatic amine-ethylene oxide adduct fatty acid ester, component (B) being glycerol fatty acid ester and component (C) being aliphatic amine-ethylene oxide adduct, two kinds of compounds of mono- and di-fatty acid ester are contained in the component (A) with a weight ratio (mono/di) of 50/50 to 90/10, and two kinds of compounds of glycerol mono- and di-fatty acid ester are contained in the component (B) with a weight ratio (mono/di) of 95/5 to 5/50.SELECTED DRAWING: Figure 2 【課題】高速自動包装時にも耐えうる熱融着強度と平滑性に優れた多層ポリプロピレン系延伸フィルムの提供。【解決手段】基材層３及び熱融着層２を含有する多層ポリプロピレン系延伸フィルムであって、熱融着層２が前記フィルムの最外層にあり、基材層３が、ポリプロピレン系樹脂と、脂肪族アミンエチレンオキサイド付加物脂肪酸エステルである成分（Ａ）と、グリセリン脂肪酸エステルである成分（Ｂ）と、脂肪族アミンエチレンオキサイド付加物である成分（Ｃ）とを含み、成分（Ａ）にはモノ及びジ脂肪酸エステルの２種類の化合物が重量比（モノ／ジ）が５０／５０〜９０／１０の比率で含有され、成分（Ｂ）にはグリセリンモノ及びジ脂肪酸エステルの２種類の化合物が重量比（モノ／ジ）が９５／５／５〜５０の比率で含有される多層ポリプロピレン系延伸フィルム。【選択図】図２