JPS5929151A - Laminated film - Google Patents
Laminated filmInfo
- Publication number
- JPS5929151A JPS5929151A JP13718282A JP13718282A JPS5929151A JP S5929151 A JPS5929151 A JP S5929151A JP 13718282 A JP13718282 A JP 13718282A JP 13718282 A JP13718282 A JP 13718282A JP S5929151 A JPS5929151 A JP S5929151A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- layer
- laminated film
- olefin copolymer
- foaming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004711 α-olefin Substances 0.000 claims description 17
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 10
- 229920005684 linear copolymer Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 48
- 239000006260 foam Substances 0.000 description 17
- 239000004088 foaming agent Substances 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 7
- 238000005187 foaming Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 2
- 235000019399 azodicarbonamide Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- UOYIYWCAYFTQLH-UHFFFAOYSA-N 3,7-dinitro-1,3,5,7-tetrazabicyclo[3.3.1]nonane Chemical compound C1N2CN([N+](=O)[O-])CN1CN([N+]([O-])=O)C2 UOYIYWCAYFTQLH-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229920006163 vinyl copolymer Polymers 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明Ｆｉ積層フィルムに関し、詳しくは特定のプラス
チックを素材とする非発泡層と発泡層を積層してなる各
種物性、特に引裂強さのすぐれた積層フィルムに関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an Fi laminated film, and more particularly to a laminated film having excellent physical properties, particularly tear strength, formed by laminating a non-foamed layer and a foamed layer made of a specific plastic material.
従来から、発泡層を有する積層フィルムとしては、低密
ＩＫポリエチレンの非発泡層と高密度ポリエチレンに発
泡剤を配合した発泡層をグイ外で合着させるに際し、発
泡層を害し裂させて繊維状網目状物ノ＾として私層する
フィルムが知られている。Conventionally, when laminated films with a foam layer are bonded together outside a non-foam layer of low-density IK polyethylene and a foam layer of high-density polyethylene with a foaming agent, the foam layer is damaged and torn, resulting in a fibrous structure. A layered film is known as a mesh material.
しかし、上記の積層フィルムは、強度ならびに腰が十分
でなく、また外観上も美しいものではなかった。However, the above laminated film did not have sufficient strength and stiffness, and was not beautiful in appearance.
一方、本願出願人はすでに上記積層フィルムの欠点を解
消した新たな積層フィルムを提案している（特願昭５７
−２７３９１号明細省、特願昭５７−２７３９２号明細
書）。しかしながら、これらの積層フィルムは成形安定
性が良く、また外観−ヒもすぐれたものであるが、引裂
強度において十分なものではなかった。On the other hand, the applicant has already proposed a new laminated film that eliminates the drawbacks of the above-mentioned laminated film (Japanese Patent Application No. 57
-27391 Ministry of Specification, Japanese Patent Application No. 57-27392). However, although these laminated films have good molding stability and good appearance, they do not have sufficient tear strength.
そこで本発明者らは物性、特に引裂強度の良好な積層フ
ィルムを開発すべく鋭意研究な重ねた。Therefore, the present inventors have conducted extensive research in order to develop a laminated film with good physical properties, especially tear strength.
その結果、発泡層としてエチレン系重合体を用いると共
に、非発泡層としてエチレン−α−オレフィン共重合体
を用いることにより、引裂強度をはじめとする各種物性
のすぐれた積層フィルムが得られることを見出した。本
発明はかかる知見に基いて完成したものである。すなわ
ち本発明は、エチレン−α−オレフィン共重合体からな
る非発泡層およびエチレン系重合体からなる発泡層をす
る積層フィルムを提供するものである。As a result, they discovered that by using an ethylene polymer as the foam layer and an ethylene-α-olefin copolymer as the non-foam layer, a laminated film with excellent tear strength and other physical properties could be obtained. Ta. The present invention was completed based on this knowledge. That is, the present invention provides a laminated film having a non-foamed layer made of an ethylene-α-olefin copolymer and a foamed layer made of an ethylene polymer.
本発明の積層フィルムは、前述した如く基庫的には非発
泡層と発泡層を積層した二層構造よりなるものであるが
、ここで非ａ ？ｆ’１層−としてはエチレン−α−オ
レフィン共重合体よりなるフィルムが用いられる。この
エチレン−α−オレフィン共重合体の性状は特に制限さ
れるものではないが、通０．１〜２０り／ｌ（）分、好
ましくは０．２〜Ｈ１ｙ ／ １層分とする。また、こ
の共重合体中のα−オレフィン含計は通常Ｖま１〜１０
モルチとすべきである。なお、ここでエチレンと共重合
体を構成するα−オレフィンは、炭素数３〜２ｏのα−
オレフィンであり、具体的にはプロピレン、ブテン−１
，ペンテン−１、ヘキセン−１，４−メチルペンテン−
１，ノネン−１などがあげられる。As mentioned above, the laminated film of the present invention basically has a two-layer structure in which a non-foamed layer and a foamed layer are laminated. As the f'1 layer, a film made of ethylene-α-olefin copolymer is used. The properties of this ethylene-α-olefin copolymer are not particularly limited, but are generally 0.1 to 20 H1y/l() min, preferably 0.2 to H1y/1 layer. In addition, the total α-olefin content in this copolymer is usually V1 to 10.
It should be morchi. Note that the α-olefin constituting the copolymer with ethylene is an α-olefin having 3 to 2 carbon atoms.
Olefins, specifically propylene, butene-1
, pentene-1, hexene-1,4-methylpentene-
1, nonene-1, etc.
本発明の積層フィルムにおける非発泡層ｔま上記のエチ
レン−α−オレフィン共共合合体フィルムが用いられる
が、そのうち密度０．９１５〜０．９３１ｉＩ／ｃｒｎ
の直釦状共重合体、特に直鎖状低密度ポリエチレン（Ｌ
ｒ、Ｄｐｍ）が好すしい。The above-described ethylene-α-olefin copolymer film is used for the non-foamed layer t in the laminated film of the present invention, of which the density is 0.915 to 0.931 iI/crn.
Linear button-like copolymers, especially linear low-density polyethylene (L
r, Dpm) is preferred.
一方、発泡層として（社）エチレン系重合体よりなるフ
ィルムが用いられる。このエチレン系重合体と（７てけ
高密度ポリエチレン、中密度ポリエチレン、低密度ポリ
エチレン等のエチレンホモポリマーあるいはエチレン−
α−オレフィン共重合体。On the other hand, as the foam layer, a film made of ethylene polymer (manufactured by Co., Ltd.) is used. This ethylene polymer and ethylene homopolymer (such as high density polyethylene, medium density polyethylene, and low density polyethylene) or ethylene-
α-olefin copolymer.
エチレンー不飽和エステル共重合体などのエチレン系コ
ポリマーをあげることができる。ここで高密度ポリエチ
レンとしては様々なものがあるが、好捷しく＋’：ｌ
Ｍ Ｉ ２〜３ｎｆ／１０分、’ｉ’Ｐｒ ｍ： ０
、９４〜０ 、９７１ｉ’ ／ ｃ−のものがあげられ
る。また、エチレ７−不＠Ｊｕｌニスデル共重合体とし
てｔ」、エチレン−〇「１醪ビニル共車合１木などがあ
り、エチレン−α−オレフィン共中合体としては前述し
た非発泡層をｒｌ／？成するエチレン−α−オレフィン
共重合体と同じものであってもよく、捷だ異なるもので
あってもよい。Examples include ethylene copolymers such as ethylene-unsaturated ester copolymers. Here, there are various types of high-density polyethylene, but the best one is +':l.
MI 2-3nf/10 min, 'i'Pr m: 0
, 94-0, and 971i'/c-. In addition, there are ethylene-7-un@Jul Nisdell copolymers such as ethylene-〇1-vinyl copolymer and ethylene-α-olefin copolymer, and ethylene-α-olefin copolymer with the above-mentioned non-foamed layer. The copolymer may be the same as the ethylene-α-olefin copolymer, or may be very different from the ethylene-α-olefin copolymer.
上記発泡層は、エチレン系重合体に発泡剤を・加えて発
泡させ成形したものであるが、ここでｃｌ用できる発泡
剤とじで−１その発泡ｔｓｍから化学発泡剤と物理発泡
剤に大別することができる。このうち化学発２Ｎ ｌ’
ｔｌｌとしては、アゾジカルボンアミド。The above-mentioned foam layer is formed by adding a foaming agent to an ethylene polymer and foaming it.Here, the foaming agent that can be used for CL is classified into chemical foaming agents and physical foaming agents based on the foaming TSM. can do. Of these, 2N l'
tll is azodicarbonamide.
ジニトロペンタメチレンテトラミン、アゾジイソブチロ
ニトリルなどがあげられ、また物理発泡剤としてｄｌ
ブタン、ヘプタン、ジクロルジフルオロメタン、審素、
炭酸ガスなどがあげられる。Examples include dinitropentamethylenetetramine, azodiisobutyronitrile, and dl as a physical blowing agent.
Butane, heptane, dichlorodifluoromethane,
Examples include carbon dioxide gas.
本発明の積層フィルムにおける発泡層ではエチレン系重
合体と発泡剤の配合比は、特に制限はなく発泡剤の種類
等によ９畳なるが、要するに発泡倍率が１．＋ 〜５．
０”、好ましくは１．２〜４．０になるように定めれば
よい。In the foam layer of the laminated film of the present invention, the blending ratio of the ethylene polymer and the foaming agent is not particularly limited and varies depending on the type of foaming agent, etc., but in short, the foaming ratio is 1. + ~5.
0'', preferably 1.2 to 4.0.
本発明の積層フィルムにおける非５＃：泡層と発泡層＆
−１、Ｊｌ述の如き＋１！）・成成分よりなるが、づら
に各ｆＨＫ必要に応じてエチレンプロピレンゴＡ ｒ
エヂレノプロピレンジエンゴムなどのゴムａ、 ｈ＊
化防１に剤、・ｊＴｉ’ ｆｆｉ、防止剤９着色剤等を
適宜加えることもできる。Non-5# in the laminated film of the present invention: foam layer and foam layer &
-1, +1 as mentioned in Jl! )・Consists of ingredients, including each fHK and ethylene propylene as necessary.
Rubber a, h* such as edilenopropylene diene rubber
An agent, .jTi' ffi, an inhibitor 9, a coloring agent, etc. can also be added to the chemical prevention agent 1 as appropriate.
上述の即発？ｆＩｔ層と発７１”）層を積１ψ・づする
ことにより、本発明のイ１０帝フィルトけ形成されるが
、ここで非発泡層と発泡層との層埋の比率は、特に限定
されるものではなく、使用目的、フィルムＪＪ４み、成
形性２？どを考慮して適宜決定することができる。しか
し、一般にｔよ即発重層／発泡層の比は沖駅比で２／８
〜８／２の範囲とすべきである。Immediately mentioned above? By stacking the fIt layer and the foamed layer by 1ψ, the A10 filter of the present invention is formed, but the ratio of the non-foamed layer to the foamed layer is particularly limited. However, it can be determined as appropriate by considering the purpose of use, film JJ4 size, moldability 2, etc.However, in general, the ratio of quick foaming layer/foaming layer is 2/8 in terms of Oki Station ratio.
It should be in the range of ~8/2.
さらに、本発明の積層フィルムでは」二連の非発泡３層
と発泡層のみならす、これに第２の発泡層を積層して三
層フィルムとしてもよい。Further, the laminated film of the present invention may consist of only two non-foamed three layers and a foamed layer, and a second foamed layer may be laminated thereon to form a three-layered film.
以上の如き本発明の積層フィルムは、様々な方法により
製造することができ、例えば発泡層を外層とするグイ内
接着インフレーション成形法、発泡層を内層とするダイ
内接着インフレーション成形法あるいはＴダイ法などに
よることができる。The laminated film of the present invention as described above can be produced by various methods, such as an adhesive inflation molding method in which a foam layer is used as an outer layer, an adhesive inflation molding method in a die that uses a foam layer as an inner layer, or a T-die method. etc.
そのうち好ましい方法をよりｔＴＰしく説明Ｊ−Ｉ）、
ば、即発ン０；層を構成するＬ Ｌ Ｄ Ｐ Ｅ等のエ
ブーレンーα−オレフィン共重合体と発泡層を構成する
エチレン系重合体および発泡剤とをそれぞｉｌ−の押１
↑１機により充分溶融混線したものを、非発泡層を内層
。Among them, the preferred method is explained in more detail in tTP J-I),
For example, the ebulene-α-olefin copolymer such as LLDP E constituting the layer and the ethylene polymer and foaming agent constituting the foaming layer are each heated to 1
↑After being thoroughly melted and mixed in one machine, a non-foamed layer is added as an inner layer.
発泡層を外層としてダイ内接着共押出して、さらにブロ
ー比１．５〜６にてインフレーション族ＩＦＡ −ｆる
。この際、押出櫛内あるいしＹダイ内で１．、発泡層を
栴成するエチレン系重合体と発１ｆす剤との７１１．合
物が、発泡倍率１．１〜５．０．々゛イましくｉｊ：ｔ
、２〜４．０の範囲で充分発泡するように温１８−等の
東沖を選定すべ、きである。The foam layer is used as an outer layer and coextruded with in-die adhesion, and further subjected to inflation group IFA-f at a blow ratio of 1.5 to 6. At this time, 1. , 711. of the ethylene polymer and foaming agent forming the foam layer. The compound has a foaming ratio of 1.1 to 5.0. Very nice :t
, 2 to 4.0, Higashioki, such as a temperature of 18-, should be selected so as to foam sufficiently in the range of 2 to 4.0.
このように（７て得られる不発明の槓一層フイルムは、
支持層である非発泡層がエチレン−α−オレフィン共重
合体であるため、ぢ・′１岐が犬きく、竹に引裂強度が
七−しく大きいものである。牛た、発泡層としてエチレ
ン系重合体を用いる／こめ、発、包が容易であると共に
積層フィルムの成形が安定して行なわれ、その結果、外
観の良好な積層フィルムとなる。In this way, the uninvented single-layer film obtained by (7) is
Since the non-foamed support layer is made of an ethylene-α-olefin copolymer, its tear strength is seven times higher than that of bamboo. Ethylene-based polymer is used as the foam layer/It is easy to mold, expand, and wrap, and the laminated film can be formed stably, resulting in a laminated film with a good appearance.
さらに、本発明の積層フィルムか」、品）丙が一定で、
断熱性、剛性にすぐｉ′１． 、かつ表向が美屈Ｃある
ため、平底、角底の包装用袋をはじめとしてファッショ
ンバッグ、マット、デーフルクロス等Ｋ ｈｊ尚に利用
しうるものである。Furthermore, if the laminated film of the present invention is constant,
Immediate insulation and rigidity i'1. , and because the surface is beautiful and curved, it can be used for various purposes such as flat-bottomed and square-bottomed packaging bags, fashion bags, mats, and foldable cloths.
次に、木？、明全実施例によりさらに訃しく音、明する
。Next, the tree? , it sounds even more terrible with the complete example.
実施例１〜３および比較例１，２
内層として第１表に示す樹脂および外層として第１表に
示す樹脂に発泡剤としてのアゾジカルボンアミドを１重
Ｍ％混合したものをそれぞれの押出機により溶酬混練し
、内層；外層−１；１（ル景比）で押ｉ１．ｌ Ｌ 、
次いでこれをダイ内接＠県のサーキューラー・ダイに導
入した後、ブロー比４でインフレーション成形し、積層
フィルムをイＮ＊。Examples 1 to 3 and Comparative Examples 1 and 2 A mixture of the resins shown in Table 1 as the inner layer and the resins shown in Table 1 as the outer layer with 1% by weight of azodicarbonamide as a blowing agent was prepared using each extruder. Melt knead and press with inner layer; outer layer -1; 1 (Le Kei ratio). l L,
Next, this was introduced into a circular die inscribed in the die, and then inflation molded at a blow ratio of 4 to form a laminated film.
得られたＡ１１；脅フィルムは４ｆｌ ｙ ／ ｍ’で
あった。イ（ｔられた積層フィルムの外観および′物性
測定の結果を第１表に示す。The obtained A11; threat film was 4 fl y / m'. Table 1 shows the appearance of the laminated film and the results of physical property measurements.
／′
手続補正書（自発）
昭和５７年９月２２日
特許庁長官若杉和夫 殿
１、 事件の表示
特願昭５７−１５７１８２
２ 発明の名称
積層フィルム
五 補正をする者
事件との関係 ／ｌｆ許出願出
願人石ポ１化学株式会社
４、代理人
〒１０４
東京都中央区京橋１丁目１番１０号
５、 補正の対を
明細書の発明の詳細な説明の欄
６ 補正の内容
明細書第９頁第１表脚注・１の［エチレン−４−メチル
ベンテン−１共重合体（４−メチルペンテン−１含敞
５重置％）密度０．９２３Ｐ／ｄ、Ｍ工２．４ｙ−／１
０分」を「エチレン−４−メチルペンｆ ン−１−１１
合体（４−メチ用尺ンテン−１含縦 ８重に％）密度ｏ
、ＨｓＰ／７、 ＭＩ２．４１／１０分ｊに訂正する。/' Procedural amendment (voluntary) September 22, 1980 Kazuo Wakasugi, Commissioner of the Japan Patent Office, 1. Indication of the case Patent application 157182/1982 2. Name of the invention Laminated film 5. Person making the amendment Relationship with the case /lf Permission Applicant: Ishipo 1 Kagaku Co., Ltd. 4, Agent: 1-10-5, Kyobashi 1-chome, Chuo-ku, Tokyo 104 A pair of amendments are listed in the Detailed Description of the Invention in the Specification column 6 Description of the Amendments No. 9 Page 1 Table Footnotes 1 [Ethylene-4-methylbentene-1 copolymer (4-methylpentene-1-containing
5 stacking%) Density 0.923P/d, M work 2.4y-/1
0 minutes” to “ethylene-4-methyl pen f-1-11
Combined (4-Methi-use shakuten-1 containing 8%) density o
, HsP/7, MI2.41/10 minutes j.
（以上）(that's all)
Claims (1)
層およびエチレン系重合体からなる発泡層を有する積層
フィルム。 ２、エチレン−α−オレフィン共重合体が密度０．９１
５〜０．９３９／ｃｍ”の直鎖状共重合体である特許請
求の範囲第１項記載の積層フィルム。[Scope of Claims] 1. A laminated film having a non-foamed layer made of an ethylene-α-olefin copolymer and a foamed layer made of an ethylene polymer. 2. Ethylene-α-olefin copolymer has a density of 0.91
The laminated film according to claim 1, which is a linear copolymer of 5 to 0.939/cm".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13718282A JPS5929151A (en) | 1982-08-09 | 1982-08-09 | Laminated film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13718282A JPS5929151A (en) | 1982-08-09 | 1982-08-09 | Laminated film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5929151A true JPS5929151A (en) | 1984-02-16 |
| JPH0139340B2 JPH0139340B2 (en) | 1989-08-21 |
Family
ID=15192720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13718282A Granted JPS5929151A (en) | 1982-08-09 | 1982-08-09 | Laminated film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5929151A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62123568U (en) * | 1986-01-29 | 1987-08-05 | ||
| US5000992A (en) * | 1989-06-01 | 1991-03-19 | The Dow Chemical Company | Coextruded multilayer foamed film for plastic container closures and process for manufacture |
| JP2017056598A (en) * | 2015-09-15 | 2017-03-23 | 凸版印刷株式会社 | Resin composition set, resin sheet, laminate sheet and foaming wall paper and manufacturing method of resin sheet and foaming wall paper |
-
1982
- 1982-08-09 JP JP13718282A patent/JPS5929151A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62123568U (en) * | 1986-01-29 | 1987-08-05 | ||
| US5000992A (en) * | 1989-06-01 | 1991-03-19 | The Dow Chemical Company | Coextruded multilayer foamed film for plastic container closures and process for manufacture |
| JP2017056598A (en) * | 2015-09-15 | 2017-03-23 | 凸版印刷株式会社 | Resin composition set, resin sheet, laminate sheet and foaming wall paper and manufacturing method of resin sheet and foaming wall paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0139340B2 (en) | 1989-08-21 |
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