JP2016049775A5 - - Google Patents

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JP2016049775A5
JP2016049775A5 JP2015165830A JP2015165830A JP2016049775A5 JP 2016049775 A5 JP2016049775 A5 JP 2016049775A5 JP 2015165830 A JP2015165830 A JP 2015165830A JP 2015165830 A JP2015165830 A JP 2015165830A JP 2016049775 A5 JP2016049775 A5 JP 2016049775A5
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ethylene
olefin copolymer
alpha
multilayer film
weight
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高圧法低密度ポリエチレン（ａ１）１〜５０重量％と１９０℃におけるメルトフローレイトが０．１〜３ｇ／１０分のエチレン・α−オレフィン共重合体（ａ２）５０〜９９重量％を含有する樹脂組成物からなる第Ｉ層、
環状オレフィン系樹脂（ｂ１）１０〜６０重量％を必須とし、これに高圧法低密度ポリエチレン（ｂ２）と、１９０℃におけるメルトフローレイトが０．１〜３ｇ／１０分のエチレン・α−オレフィン共重合体（ｂ３）とを合計で１００重量％となるよう（ｂ１）〜（ｂ３）を含有する樹脂組成物からなる第II層、
高圧法低密度ポリエチレン（ｃ１）１〜５０重量％と１９０℃におけるメルトフローレイトが０．１〜３ｇ／１０分のエチレン・α−オレフィン共重合体（ｃ２）５０〜９９重量％を含有する第III層が順に積層されており、
前記第Ｉ層又は前記第III層を構成する樹脂組成物が、下記測定法で測定した溶融張力が３．５ｇ以上であることを特徴とする易引裂性多層フィルム。
＜溶融張力の測定法＞
室温が２３℃の環境下において、炉内で１９０℃で加熱安定された材料を内径２．０９５ｍｍ、長さ８ｍｍのオリフィスから１ｃｍ／分のピストン速度で押し出し、押し出された溶融樹脂を４ｍ／分の速度で引っ張り、その時に生じた抵抗力を溶融張力（ｇ）とする。 Resin containing 1 to 50% by weight of high-pressure low-density polyethylene (a1) and 50 to 99% by weight of ethylene / α-olefin copolymer (a2) having a melt flow rate at 190 ° C. of 0.1 to 3 g / 10 min. A layer I comprising a composition;
The cyclic olefin-based resin (b1) is essential in an amount of 10 to 60% by weight, which includes a high-pressure low-density polyethylene (b2) and an ethylene / α-olefin copolymer having a melt flow rate at 190 ° C. of 0.1 to 3 g / 10 min. A second layer comprising a resin composition containing (b1) to (b3) so that the total amount of the polymer (b3) is 100% by weight;
A high-pressure process low-density polyethylene (c1) 1 to 50% by weight and a melt flow rate at 190 ° C. containing 0.1 to 3 g / 10 min of ethylene / α-olefin copolymer (c2) 50 to 99% by weight III layers are stacked in order,
Wherein the I layer or the resin composition constituting the layer III is easy splitting multilayer film melt tension measured by the following measuring method is characterized in that at least 3.5 g.
<Measuring method of melt tension>
In an environment where the room temperature is 23 ° C., a material heated and stabilized at 190 ° C. in a furnace is extruded from an orifice having an inner diameter of 2.095 mm and a length of 8 mm at a piston speed of 1 cm / min, and the extruded molten resin is 4 m / min. The resistance force generated at that time is defined as melt tension (g). 前記環状オレフィン系樹脂（ｂ１）は、エチレン・環状オレフィン共重合体であることを特徴とする請求項１に記載の易引裂性多層フィルム。 The easily tearable multilayer film according to claim 1, wherein the cyclic olefin-based resin (b1) is an ethylene / cyclic olefin copolymer. 前記環状オレフィン系樹脂（ｂ１）は、前記第I層〜前記第III層からなる積層体全体を基準として、５〜４０重量％含まれることを特徴とする請求項１又は２に記載の易引裂性多層フィルム。 The cyclic olefin-based resin (b1), said as the I layer ~ based on total laminate of the layer III, easy splitting of claim 1 or 2, characterized in that contained 5 to 40 wt% Multilayer film. 前記エチレン・α−オレフィン共重合体（ａ２），前記エチレン・α−オレフィン共重合体（ｂ３），又は前記エチレン・α−オレフィン共重合体（ｃ２）は、密度が０．９００〜０．９４０ｇ／ｃｍ３のエチレン・α−オレフィン共重合体であることを特徴とする請求項１〜３にいずれか１項に記載の易引裂多層フィルム。 The ethylene · alpha-olefin copolymer (a2), wherein the ethylene · alpha-olefin copolymer (b3), or the ethylene · alpha-olefin copolymer (c2) has a density of 0.900~0.940g The easily tearable multilayer film according to any one of claims 1 to 3, wherein the film is an ethylene / α-olefin copolymer of / cm 3 . 前記エチレン・α−オレフィン共重合体（ａ２），前記エチレン・α−オレフィン共重合体（ｂ３），又は前記エチレン・α−オレフィン共重合体（ｃ２）は、１９０℃におけるメルトフローレイトが０．１〜２．０ｇ／分のエチレン・α−オレフィン共重合体であることを特徴とする、請求項１〜４のいずれか１項に記載の易引裂多層フィルム。 The ethylene · alpha-olefin copolymer (a2), wherein the ethylene · alpha-olefin copolymer (b3), or the ethylene · alpha-olefin copolymer (c2), the melt flow rate at 190 ° C. 0. The easily tearable multilayer film according to any one of claims 1 to 4, wherein the easily tearable multilayer film is an ethylene / α-olefin copolymer of 1 to 2.0 g / min. 前記第ＩＩ層を構成する前記エチレン・α−オレフィン共重合体（ｂ３）として、密度又はメルトフローレイトの異なる２種以上のエチレン・α−オレフィン共重合体（ｂ３）を用いることを特徴とする、請求項１〜５のいずれか１項に記載の易引裂性多層フィルム。 As the ethylene · alpha-olefin copolymer constituting the second layer II (b3), characterized by using a density or melt flow rate of two or more different ethylene · alpha-olefin copolymer (b3) The easily tearable multilayer film of any one of Claims 1-5. 前記第I層〜前記第III層からなる積層体において、ＪＩＳ Ｋ７１２８−２に準拠して測定したエルメンドルフ引裂強度が、縦方向及び横方向において、それぞれ１００Ｎ／ｍｍ以下であることを特徴とする請求項１〜６のいずれか１項に記載の易引裂性多層フィルム。 Claimed in laminate of the lamina I ~ the layer III, Elmendorf tear strength measured in accordance with JIS K7128-2 is, in the longitudinal and transverse directions, characterized in that each or less 100 N / mm The easily tearable multilayer film of any one of claim | item 1 -6. 請求項１〜７のいずれか１項に記載の樹脂組成物を用いてインフレーション成形を行ったインフレーションフィルム。   The inflation film which performed the inflation molding using the resin composition of any one of Claims 1-7. 請求項１〜７のいずれか１項に記載の易引裂性多層フィルムを用いることを特徴とする重量物包装用フィルム。   The easily tearable multilayer film of any one of Claims 1-7 is used, The film for heavy goods packaging characterized by the above-mentioned. フィルムの厚みが６０μｍ以上であることを特徴とする請求項９に記載の重量物包装用フィルム。   The heavy-weight packaging film according to claim 9, wherein the film has a thickness of 60 μm or more.
JP2015165830A 2014-08-29 2015-08-25 Easy tearable multilayer film and heavy weight packaging film Active JP6610084B2 (en)

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JP2014175504 2014-08-29
JP2014175504 2014-08-29
JP2015165830A JP6610084B2 (en) 2014-08-29 2015-08-25 Easy tearable multilayer film and heavy weight packaging film

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JP2016049775A JP2016049775A (en) 2016-04-11
JP2016049775A5 true JP2016049775A5 (en) 2018-08-09
JP6610084B2 JP6610084B2 (en) 2019-11-27

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Publication number Priority date Publication date Assignee Title
JP6919218B2 (en) * 2017-02-20 2021-08-18 日本ポリエチレン株式会社 Anti-slip film and heavy-duty packaging film
JP6891562B2 (en) * 2017-03-16 2021-06-18 日本ポリエチレン株式会社 Heat-resistant, easily tearable multilayer film and packaging bag
JP7047528B2 (en) * 2018-03-28 2022-04-05 日本ポリエチレン株式会社 High-strength, easily tearable multilayer film, packaging bag and stretch film
US11248113B2 (en) 2018-11-30 2022-02-15 Exxonmobil Chemical Patents Inc. Cyclic olefin copolymers and films prepared therefrom

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JP3787935B2 (en) * 1997-01-30 2006-06-21 三井化学株式会社 Multilayer film for packaging
US6111019A (en) * 1997-03-31 2000-08-29 Exxon Chemical Patents, Inc. LLDPE blends with an ethylene-norbornene copolymer for resins of improved toughness and processibility for film production
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