JP4662614B2 - Ethylene resin film for packaging - Google Patents

Ethylene resin film for packaging Download PDF

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Publication number
JP4662614B2
JP4662614B2 JP2000277894A JP2000277894A JP4662614B2 JP 4662614 B2 JP4662614 B2 JP 4662614B2 JP 2000277894 A JP2000277894 A JP 2000277894A JP 2000277894 A JP2000277894 A JP 2000277894A JP 4662614 B2 JP4662614 B2 JP 4662614B2
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Japan
Prior art keywords
ethylene
packaging
weight
film
component
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JP2000277894A
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JP2002088201A (en
Inventor
一臣 石丸
謙一 鶴橋
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Okamoto Industries Inc
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Okamoto Industries Inc
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Description

【0001】
【発明の属する技術分野】
本発明は、包装用エチレン系樹脂フィルムに関する。更に詳しくは、エチレン系樹脂混合物の単層フィルムで構成させた包装用エチレン系樹脂フィルムに関する。
【0002】
【従来技術】
従来、包装用のラップフィルムやストレッチフィルムの素材には主にポリ塩化ビニルやポリ塩化ビニリデンが用いられている。これらは、ラップフィルムやストレッチフィルムに要求される性能、例えば透明性、ストレッチ性、ヒートシール性、密着性などが優れており、重宝されている。ところが、ポリ塩化ビニルフィルムやポリ塩化ビニリデンフィルムは、廃棄後の焼却時に塩化水素ガスを発生すること、また含有されている可塑剤が溶出する場合があることなどが問題視されはじめ、そのためポリ塩化ビニルフィルムやポリ塩化ビニリデンフィルムに替わる包装用エチレン系樹脂フィルムの開発が進められている。すなわち、高圧法ポリエチレン、直鎖状低密度ポリエチレン、直鎖状超低密度ポリエチレン、ポリプロピレン、エチレン−酢酸ビニル共重合体、エチレン−(メタ)アクリレート共重合体、ポリブタジエンなどを素材にした包装用のラップフィルムやストレッチフィルムの開発が進められている。
【0003】
ポリ塩化ビニルフィルムやポリ塩化ビニリデンフィルムはそのフィルム自体が包装用のラップフィルム、ストレッチフィルムに要求される性質を備えているため、それらの単層フィルムを包装用のラップフィルムやストレッチフィルムに使用することができる。しかし、上記に挙げたポリオレフィン系樹脂を素材にした単層フィルムを包装用のラップフィルムやストレッチフィルムに使用したときは、例えば透明性が良くてもストレッチ性が劣るとか、ストレッチ性が満足できてもヒートシール性が不良であるなど、十分に満足できるものは得られなかった。また、これらの種々のポリオレフィンを混合した組成物の単層フィルムについても同様であった。そのため、従来は、上記のポリオレフィンの単独或は混合物を素材にしたフィルムの2種以上を種々組み合わせて積層し、それぞれの長所を活かし、短所を補った包装用のラップフィルムやストレッチフィルムが数多く提案されている。このような積層フィルムは、その製造が煩雑になり、またコストが高くなる問題点がある。
【0004】
【発明が解決しようとする課題】
本発明は、上記の事情に鑑みなされたもので、エチレン系樹脂の混合物を素材にし、単層フィルムであっても、柔軟性、透明性、ストレッチ性、包装ヒートシール性に優れ、包装仕上りのよい包装用エチレン系樹脂フィルムを提供することを目的とする。
【0005】
【課題を解決するための手段】
すなわち、本発明は、(A)融点が80〜125℃の直鎖状低密度ポリエチレン50〜90重量%、(B)融点が20〜110℃のエチレン系エラストマー5〜20重量%、及び(C)融点が70〜105℃のエチレン−酢酸ビニル共重合体(但し、酢酸ビニル含有量5〜30重量%)5〜30重量%のエチレン系樹脂混合物からなることを特徴とする包装用エチレン系樹脂フィルムである。上記(B)成分のエチレン系エラストマーは融点40〜50℃のものが好ましい。
【0006】
【発明の実施の形態】
本発明で用いる(A)成分の直鎖状低密度ポリエチレン(LLDPE)は、密度が0.91〜0.929g/ml(JIS K6748−1981の低密度ポリエチレンの定義による)の直鎖状エチレン−α−オレフィン共重合体である。直鎖状低密度ポリエチレンは、チグラー・ナッタ触媒を用いて重合したα−オレフィン含有量10重量%程度までのもの、或はシングルサイト触媒を用いて重合したα−オレフィン含有量10重量%程度までのものが用いられる。チグラー・ナッタ触媒を用いた重合体は引き裂き強さが良好であり、シングルサイト触媒を用いた重合体は耐衝撃性、耐突き刺し性、伸び、透明性に優れている。本発明では、シングルサイト触媒を用いて重合した重合体が好ましい。上記のα−オレフィンは、炭素数3〜12のα−オレフィンで、プロピレン、1−ブテン、1−ペンテン、1−ヘキセン、1−ヘプテン、4−メチル−1−ペンテン、1−オクテン、1−デセンなどである。
【0007】
また、(A)成分の直鎖状低密度ポリエチレンは、融点が80〜125℃のもの、好ましくは100〜120℃のものが用いられる。また、そのMFR(メルト フロー レート)は好ましくは0.1〜20g/10分、より好ましくは0.5〜10g/10分である。また、曲げ弾性率3000kg/cm2以下の直鎖状低密度ポリエチレンが好ましく用いられる。(A)成分の直鎖状低密度ポリエチレンの配合割合は、(A)成分、(B)成分及び(C)成分の合計量に対し、50〜90重量%、好ましくは60〜80重量%である。50重量%未満では透明性が下がり、90重量%を越えるとヒートシール性が劣る。
【0008】
本発明で用いる(B)成分のエチレン系エラストマーは、エチレンを50〜90重量%と、1−ブテン、1−ヘキセン、1−オクテン、4−メチル−1−ペンテン、1−オクテン、1−デセンなどの炭素数3〜12のα−オレフィンの1種又は2種以上10〜50重量%とをランダム共重合させた共重合体である。重合触媒にシングルサイト触媒を用いて重合したものが好ましい。特に低融点のエチレン系エラストマーの場合は、シングルサイト触媒を用いないとフィルムのベタツキが強くなり、使いにくいものとなる。
【0009】
(B)成分のエチレン系エラストマーは、融点が20〜110℃、好ましくは融点40〜50℃のものが用いられる。融点110℃を越えるものを用いた場合はヒートシール性が悪い。また、融点が20℃未満のものを用いた場合はベタツキがあり、透明性が劣る。融点40〜50℃のものを用いた場合は、ヒートシール性、透明性共に優れ、ベタツキがないものが得られる。また、混合使用する(A)成分の融点より40℃以上、好ましくは50℃以上の低い融点をもつ(B)成分を使用するのが好ましい。
【0010】
また、(B)成分のエチレン系エラストマーは、MFR(メルト フロー レート)が好ましくは0.1〜20g/10分、より好ましくは0.5〜10g/10分のものである。また、(B)成分のエチレン系エラストマーは、密度が0.80〜0.90g/ml、好ましくは0.86〜0.88g/mlのものである。(B)成分のエチレン系エラストマーの配合割合は、(A)成分、(B)成分及び(C)成分の合計量に対し、5〜20重量%、好ましくは5〜10重量%である。5重量%未満ではヒートシール性と透明性が劣り、20重量%を越えるとべたつき感が生じ、またブロッキングを生じやすくなる。
【0011】
本発明で用いる(C)成分のエチレン−酢酸ビニル共重合体は、エチレン70〜95重量%と酢酸ビニル含有量30〜5重量%との共重合体である。融点70〜105℃、好ましくは85〜95℃のものが用いられる。また、MFR(メルト フロー レート)が0.1〜20g/10分、好ましくは0.5〜10g/10分のエチレン系エラストマーが好ましく用いられる。また、(C)成分のエチレン−酢酸ビニル共重合体は、密度が0.92〜0.95g/mlものが好ましく用いられる。(C)成分のエチレン−酢酸ビニル共重合体の配合割合は、(A)成分、(B)成分及び(C)成分の合計量に対し、5〜30重量%、好ましくは10〜15重量%である。5重量%未満ではヒートシール性が劣り、30重量%を越えると透明性が悪くなる。
【0012】
本発明の包装用エチレン系樹脂フィルムは、上記(A)成分、(B)成分及び(C)成分を所定の割合で混合し、この混合物をフィルムに成形して製造するが、その際、常用されている防曇剤、抗菌剤、滑剤、粘着付与剤などの添加剤を配合するのが好ましい。防曇剤としては、モノ又はジグリセリン脂肪酸エステル、ポリグリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、蔗糖脂肪酸エステル、或はこれらのエチレンオキサイド付加物、ポリオキシアルキレンエーテルなどが用いられる。抗菌剤としては銀系無機抗菌剤などが用いられる。粘着付与剤には芳香族系石油樹脂、脂肪族系石油樹脂、脂環系石油樹脂、ロジンその誘導体、テルペン樹脂、クマロン樹脂、クマロン−インデン樹脂などがなどが用いられる。
【0013】
本発明のフィルムの成形は例えば次のようにする。(A)成分、(B)成分及び(C)成分の所定量を取り、これに所定の添加剤を配合し、V−ブレンダー、ヘンシェルミキサー、タンブラーブレンダーなどで良く混合し、Tダイを備えた押出し機を用いたり、インフレーションフィルム成形法によってフィルムに成形する。フィルムの厚さは8〜20μm、好ましくは10〜15μmである。
【0014】
このようにして得られた包装用エチレン系樹脂フィルムは、柔軟性があり、透明性が良く、ラップフィルム、ストレッチフィルムとして利用されるが、ストレッチ性、ストレッチ時の耐引裂性が優れているため、特にストレッチフィルムとして有用である。また、シール温度が低く且つヒートシール性が良い。そのため、スーパー店などのトレイの包装、すなわち野菜や魚類などの内容物を入れたトレイの上からフィルムを被せ、このフィルムをトレイの底外面にまわし、この底外面でフィルムをヒートシールする包装に適する。このように、本発明の包装用エチレン系樹脂フィルムは、業務用の包装ストレッチフィルムとして最適である。また、本発明の包装用エチレン系樹脂フィルムは単層であっても、上記の特徴を有するが、他のフィルムと積層して用いることもできる。
【0015】
【実施例及び比較例】
実施例1〜4、比較例1〜3
実施例、比較例では、(A)成分の直鎖状低密度ポリエチレンとして、ダウケミカル5200(ダウケミカル社製)、ダウケミカル2032(ダウケミカル社製)、住友化学工業FV403(住友化学工業社製)を用いた。また、(B)成分のエチレン系エラストマーとして、ダウケミカルEG8150(ダウケミカル社製:シングルサイト触媒を用いて重合した1−オクテン25重量%共重合体)、住友化学工業N0441(住友化学工業社製:シングルサイト触媒を用いて重合した1−ブテン30重量%共重合体)を用いた。また、(C)成分のエチレン−酢酸ビニル共重合体として、住友化学工業D2021(住友化学工業社製:酢酸ビニル含量10重量%の共重合体)を用いた。これらの各樹脂の融点(℃)、MFR(g/10分)、密度(g/ml)及び曲げ弾性率(kg/cm2)を表1に示す。
【0016】
【表1】

Figure 0004662614
【0017】
上記の(A)直鎖状低密度ポリエチレン、(B)エチレン系エラストマー及び(C)エチレン−酢酸ビニル共重合体、並びに防曇剤(ジグリセリンオレエート)を、表2の実施例1〜4、比較例1〜3に示す組成割合で、ヘンシェルミキサーで混合し、Tダイを備えた押出し機を用いて厚さ12μmのフィルムに成形した。得られた各フィルムについて、ストレッチ時の破れ、透明性、ヒートシール性を試験した。その結果も併せて表2に示す。
【0018】
【表2】
Figure 0004662614
【0019】
表2において、ストレッチ時の破れは、各フィルムについてハンドラッパーを使用して約2倍にストレッチする試験を10回行ない、その時の破れた回数を調べた。○は破れた回数0、△は破れた回数1〜2、×は破れた回数3以上、を表す。
透明性はヘイズを測定した。○は3未満、×は3以上、を表す。
ヒートシール性は、シール温度90℃でシールしたときと、シール温度100℃でシールしたときと、シール温度110℃でシールしたときとについて調べた。○はしっかりくっついている、△は部分的にくっついている、×はくっついていない、を表す。
【0020】
【発明の効果】
本発明の包装用エチレン系樹脂フィルムは、単層フィルムであっても、透明性、柔軟性、ストレッチ性に優れており、引裂強度が高く、しかも低いシール温度でも良好にシールできる性質をもつ。そのため、特にスーパー店などにおけるトレイの包装用のストレッチフィルムに適する。また、単層で使用できるので製造コストが安い利点がある。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ethylene-based resin film for packaging. More specifically, the present invention relates to an ethylene resin film for packaging constituted by a single layer film of an ethylene resin mixture.
[0002]
[Prior art]
Conventionally, polyvinyl chloride and polyvinylidene chloride are mainly used as materials for packaging wrap films and stretch films. These are excellent in performance required for wrap films and stretch films, for example, transparency, stretch properties, heat seal properties, adhesion, and the like. However, polyvinyl chloride films and polyvinylidene chloride films have started to be regarded as problems such as the generation of hydrogen chloride gas during incineration after disposal, and the contained plasticizer may be eluted. Development of an ethylene-based resin film for packaging as an alternative to vinyl film and polyvinylidene chloride film is underway. That is, for packaging made of high pressure polyethylene, linear low density polyethylene, linear ultra-low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene- (meth) acrylate copolymer, polybutadiene, etc. Development of wrap films and stretch films is ongoing.
[0003]
Polyvinyl chloride films and polyvinylidene chloride films themselves have the properties required for wrapping films and stretch films for packaging, so these single-layer films are used for wrapping films and stretch films for packaging. be able to. However, when a single-layer film made of the polyolefin-based resin mentioned above is used for a wrap film or a stretch film for packaging, for example, even if the transparency is good, the stretch property is inferior, or the stretch property is satisfactory. However, a satisfactory product such as poor heat sealability could not be obtained. The same was true for a single layer film of a composition obtained by mixing these various polyolefins. Therefore, in the past, we have proposed a number of packaging wrap films and stretch films that make use of the strengths of each of the above two or more types of films made of the above polyolefins alone or as a mixture, and take advantage of each. Has been. Such a laminated film has problems that its production becomes complicated and its cost increases.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and a mixture of ethylene-based resins is used as a raw material, and even if it is a single layer film, it has excellent flexibility, transparency, stretchability, packaging heat sealability, and packaging finish. It aims at providing the good ethylene-type resin film for packaging.
[0005]
[Means for Solving the Problems]
That is, the present invention includes (A) 50 to 90% by weight of linear low density polyethylene having a melting point of 80 to 125 ° C, (B) 5 to 20% by weight of an ethylene elastomer having a melting point of 20 to 110 ° C, and (C ) Ethylene-vinyl acetate copolymer having a melting point of 70 to 105 ° C. (provided that the vinyl acetate content is 5 to 30% by weight) and consists of an ethylene resin mixture of 5 to 30% by weight. It is a film. The ethylene elastomer as the component (B) preferably has a melting point of 40 to 50 ° C.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The linear low density polyethylene (LLDPE) of component (A) used in the present invention has a density of 0.91 to 0.929 g / ml (according to the definition of low density polyethylene of JIS K6748-1981). It is an α-olefin copolymer. The linear low density polyethylene has an α-olefin content of about 10% by weight polymerized using a Ziegler-Natta catalyst, or an α-olefin content of about 10% by weight polymerized using a single site catalyst. Is used. A polymer using a Ziegler-Natta catalyst has good tear strength, and a polymer using a single site catalyst is excellent in impact resistance, puncture resistance, elongation and transparency. In the present invention, a polymer polymerized using a single site catalyst is preferred. The α-olefin is an α-olefin having 3 to 12 carbon atoms, and includes propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 4-methyl-1-pentene, 1-octene, 1-octene, Such as decene.
[0007]
Further, the linear low density polyethylene (A) having a melting point of 80 to 125 ° C., preferably 100 to 120 ° C. is used. The MFR (melt flow rate) is preferably 0.1 to 20 g / 10 minutes, more preferably 0.5 to 10 g / 10 minutes. A linear low density polyethylene having a flexural modulus of 3000 kg / cm 2 or less is preferably used. The blending ratio of the linear low density polyethylene of the component (A) is 50 to 90% by weight, preferably 60 to 80% by weight, based on the total amount of the component (A), the component (B) and the component (C). is there. If it is less than 50% by weight, the transparency is lowered, and if it exceeds 90% by weight, the heat sealability is inferior.
[0008]
The ethylene-based elastomer of component (B) used in the present invention contains 50 to 90% by weight of ethylene, 1-butene, 1-hexene, 1-octene, 4-methyl-1-pentene, 1-octene and 1-decene. It is a copolymer obtained by random copolymerizing one or more of 10 to 50% by weight of an α-olefin having 3 to 12 carbon atoms. What superposed | polymerized using the single site catalyst for the polymerization catalyst is preferable. In particular, in the case of an ethylene-based elastomer having a low melting point, the stickiness of the film becomes strong and difficult to use unless a single site catalyst is used.
[0009]
As the (B) component ethylene-based elastomer, those having a melting point of 20 to 110 ° C., preferably 40 to 50 ° C. are used. When a material having a melting point exceeding 110 ° C. is used, the heat sealability is poor. Moreover, when a thing with melting | fusing point less than 20 degreeC is used, there exists stickiness and transparency is inferior. When a material having a melting point of 40 to 50 ° C. is used, a product having excellent heat sealability and transparency and no stickiness can be obtained. In addition, it is preferable to use the component (B) having a melting point of 40 ° C. or more, preferably 50 ° C. or more, higher than the melting point of the component (A) to be used.
[0010]
The (B) component ethylene-based elastomer preferably has an MFR (melt flow rate) of 0.1 to 20 g / 10 minutes, more preferably 0.5 to 10 g / 10 minutes. The (B) component ethylene-based elastomer has a density of 0.80 to 0.90 g / ml, preferably 0.86 to 0.88 g / ml. The blending ratio of the ethylene-based elastomer of component (B) is 5 to 20% by weight, preferably 5 to 10% by weight, based on the total amount of component (A), component (B) and component (C). If it is less than 5% by weight, the heat-sealability and transparency are inferior, and if it exceeds 20% by weight, a sticky feeling is produced and blocking tends to occur.
[0011]
The (C) component ethylene-vinyl acetate copolymer used in the present invention is a copolymer of 70 to 95% by weight of ethylene and 30 to 5% by weight of vinyl acetate. A melting point of 70 to 105 ° C, preferably 85 to 95 ° C is used. An ethylene elastomer having an MFR (melt flow rate) of 0.1 to 20 g / 10 min, preferably 0.5 to 10 g / 10 min is preferably used. Further, the ethylene-vinyl acetate copolymer of component (C) preferably has a density of 0.92 to 0.95 g / ml. The blending ratio of the ethylene-vinyl acetate copolymer of component (C) is 5 to 30% by weight, preferably 10 to 15% by weight, based on the total amount of component (A), component (B) and component (C). It is. If it is less than 5% by weight, the heat sealability is inferior, and if it exceeds 30% by weight, the transparency is deteriorated.
[0012]
The ethylene-based resin film for packaging of the present invention is produced by mixing the components (A), (B) and (C) at a predetermined ratio, and molding the mixture into a film. It is preferable to add additives such as antifogging agents, antibacterial agents, lubricants and tackifiers. As the antifogging agent, mono- or diglycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, sucrose fatty acid ester, ethylene oxide adducts thereof, polyoxyalkylene ether and the like are used. As the antibacterial agent, a silver-based inorganic antibacterial agent or the like is used. As the tackifier, aromatic petroleum resins, aliphatic petroleum resins, alicyclic petroleum resins, rosin derivatives thereof, terpene resins, coumarone resins, coumarone-indene resins and the like are used.
[0013]
For example, the film of the present invention is formed as follows. A predetermined amount of the component (A), the component (B), and the component (C) is taken, and a predetermined additive is added thereto, and mixed well with a V-blender, a Henschel mixer, a tumbler blender, etc., and a T-die is provided. It is formed into a film by using an extruder or an inflation film forming method. The thickness of the film is 8 to 20 μm, preferably 10 to 15 μm.
[0014]
The ethylene-based resin film for packaging thus obtained has flexibility and transparency, and is used as a wrap film and a stretch film, but has excellent stretch properties and tear resistance during stretching. In particular, it is useful as a stretch film. Further, the sealing temperature is low and the heat sealing property is good. For this reason, packaging for trays at supermarkets, that is, covering the top of the tray containing contents such as vegetables and fish, turning this film to the bottom outer surface of the tray, and heat sealing the film at the bottom outer surface. Suitable. Thus, the ethylene resin film for packaging of the present invention is optimal as a packaging stretch film for business use. Moreover, even if the ethylene-type resin film for packaging of this invention is a single layer, it has said characteristic, However, It can also be laminated | stacked and used for another film.
[0015]
[Examples and Comparative Examples]
Examples 1-4, Comparative Examples 1-3
In Examples and Comparative Examples, as the linear low density polyethylene of component (A), Dow Chemical 5200 (manufactured by Dow Chemical Company), Dow Chemical 2032 (manufactured by Dow Chemical Company), Sumitomo Chemical FV403 (manufactured by Sumitomo Chemical Company) ) Was used. Further, as the ethylene-based elastomer of component (B), Dow Chemical EG8150 (manufactured by Dow Chemical Co., Ltd .: 1-octene 25 wt% copolymer polymerized using a single site catalyst), Sumitomo Chemical N0441 (manufactured by Sumitomo Chemical Co., Ltd.) : 1-butene 30% by weight copolymerized using a single site catalyst). Moreover, Sumitomo Chemical D2021 (manufactured by Sumitomo Chemical Co., Ltd .: copolymer having a vinyl acetate content of 10% by weight) was used as the ethylene-vinyl acetate copolymer of component (C). Table 1 shows the melting point (° C.), MFR (g / 10 min), density (g / ml), and flexural modulus (kg / cm 2 ) of each of these resins.
[0016]
[Table 1]
Figure 0004662614
[0017]
The above (A) linear low density polyethylene, (B) ethylene elastomer and (C) ethylene-vinyl acetate copolymer, and antifogging agent (diglycerin oleate) were used in Examples 1 to 4 in Table 2. The composition ratios shown in Comparative Examples 1 to 3 were mixed with a Henschel mixer, and formed into a film having a thickness of 12 μm using an extruder equipped with a T die. About each obtained film, the tear at the time of a stretch, transparency, and heat seal property were tested. The results are also shown in Table 2.
[0018]
[Table 2]
Figure 0004662614
[0019]
In Table 2, the tearing at the time of stretching was carried out 10 times for each film using a handler wrapper to stretch about twice, and the number of tears at that time was examined. ○ represents the number of breaks 0, Δ represents the number of breaks 1 to 2, and x represents the number of breaks 3 or more.
Transparency measured haze. O represents less than 3, and x represents 3 or more.
The heat sealability was examined when sealing at a sealing temperature of 90 ° C., sealing at a sealing temperature of 100 ° C., and sealing at a sealing temperature of 110 ° C. ○ indicates that they are firmly attached, △ indicates that they are partially attached, and × indicates that they are not attached.
[0020]
【The invention's effect】
Even if the ethylene-based resin film for packaging of the present invention is a single layer film, it is excellent in transparency, flexibility and stretchability, has a high tear strength, and can be sealed well even at a low sealing temperature. Therefore, it is particularly suitable as a stretch film for packaging trays at supermarkets. Moreover, since it can be used with a single layer, there is an advantage that the manufacturing cost is low.

Claims (2)

(A)融点が80〜125℃の直鎖状低密度ポリエチレン50〜90重量%、(B)融点が20〜110℃のエチレン系エラストマー5〜20重量%、及び(C)融点が70〜105℃のエチレン−酢酸ビニル共重合体(但し、酢酸ビニル含有量5〜30重量%)5〜30重量%のエチレン系樹脂混合物からなることを特徴とする包装用エチレン系樹脂フィルム。(A) 50 to 90% by weight of linear low density polyethylene having a melting point of 80 to 125 ° C., (B) 5 to 20% by weight of an ethylene elastomer having a melting point of 20 to 110 ° C., and (C) a melting point of 70 to 105 An ethylene-based resin film for packaging, comprising an ethylene-based resin mixture of 5 to 30% by weight of an ethylene-vinyl acetate copolymer (provided that the vinyl acetate content is 5 to 30% by weight). (B)成分のエチレン系エラストマーの融点が40〜50℃である請求項1記載の包装用エチレン系樹脂フィルム。The ethylene-based resin film for packaging according to claim 1, wherein the melting point of the ethylene-based elastomer as the component (B) is 40 to 50 ° C.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01301335A (en) * 1988-03-18 1989-12-05 Exxon Chem Patents Inc Food wrapping film
JPH04246536A (en) * 1991-01-31 1992-09-02 Gunze Ltd Composite stretch film
JPH05200956A (en) * 1992-01-29 1993-08-10 Mitsubishi Kasei Corp Laminated film
JPH0639920A (en) * 1992-03-23 1994-02-15 Viskase Corp Biaxially oriented heat-shrinkable film
JPH08208895A (en) * 1995-02-02 1996-08-13 Mitsubishi Chem Corp Resin composition
JPH11181176A (en) * 1997-12-22 1999-07-06 Nippon Unicar Co Ltd Ethylene-vinyl acetate copolymer composition with excellent antistatic properties

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01301335A (en) * 1988-03-18 1989-12-05 Exxon Chem Patents Inc Food wrapping film
JPH04246536A (en) * 1991-01-31 1992-09-02 Gunze Ltd Composite stretch film
JPH05200956A (en) * 1992-01-29 1993-08-10 Mitsubishi Kasei Corp Laminated film
JPH0639920A (en) * 1992-03-23 1994-02-15 Viskase Corp Biaxially oriented heat-shrinkable film
JPH08208895A (en) * 1995-02-02 1996-08-13 Mitsubishi Chem Corp Resin composition
JPH11181176A (en) * 1997-12-22 1999-07-06 Nippon Unicar Co Ltd Ethylene-vinyl acetate copolymer composition with excellent antistatic properties

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