JPH05156095A - Oxygen-barrier resin composition, its production and packaging material - Google Patents
Oxygen-barrier resin composition, its production and packaging materialInfo
- Publication number
- JPH05156095A JPH05156095A JP32747891A JP32747891A JPH05156095A JP H05156095 A JPH05156095 A JP H05156095A JP 32747891 A JP32747891 A JP 32747891A JP 32747891 A JP32747891 A JP 32747891A JP H05156095 A JPH05156095 A JP H05156095A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- polyolefin
- oxidation catalyst
- composition
- resin composition
- 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.)
- Pending
Links
Landscapes
- Wrappers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、酸素バリヤー性に優れ
た樹脂組成物とその製造方法並びにそれを用いた酸素バ
リヤー性包装材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin composition having an excellent oxygen barrier property, a method for producing the same, and an oxygen barrier property packaging material using the same.
【０００２】熱可塑性樹脂は、溶融押出成形、射出成
形、中空成形等の種々の方法で成形可能であることか
ら、例えば包装用のフィルム、シート、ボトル、容器等
に数多く使用されている。Since thermoplastic resins can be molded by various methods such as melt extrusion molding, injection molding and blow molding, they are widely used in, for example, packaging films, sheets, bottles and containers.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、特に食
品等の酸素を嫌う内容物の包装用としては、酸素バリヤ
ー性であって、より高価な樹脂、例えばエチレン−酢酸
ビニル共重合体ケン化物、ポリ塩化ビニリデン等と積層
して用いられているのが実状であった。However, particularly for packaging of contents such as foods that dislike oxygen, more expensive resins having oxygen barrier properties, such as saponified ethylene-vinyl acetate copolymer, poly It was actually used by stacking with vinylidene chloride or the like.
【０００４】本発明は、かかる事情に鑑みてなされたも
のであり、より高価な酸素バリヤー性樹脂を減量化し、
なおかつ優れた酸素バリヤー性を有する樹脂組成物、な
らびに包装材料を提供することを目的とする。The present invention has been made in view of such circumstances, and reduces the amount of more expensive oxygen barrier resin,
Moreover, it is an object of the present invention to provide a resin composition having excellent oxygen barrier properties and a packaging material.
【０００５】[0005]
【課題を解決するための手段】本発明者等は、前記課題
に鑑みて鋭意研究の結果、本発明の上記目的は、ポリオ
レフィンと酸化触媒からなる組成物を、エチレン−酢酸
ビニル共重合体ケン化物中に分散してなる酸素バリヤー
性樹脂組成物からなる包装材料を提供することにより達
成されることを見出した。Means for Solving the Problems The inventors of the present invention have conducted extensive studies in view of the above problems, and as a result, the above object of the present invention was to provide a composition comprising a polyolefin and an oxidation catalyst with an ethylene-vinyl acetate copolymer It was found to be achieved by providing a packaging material composed of an oxygen barrier resin composition dispersed in a compound.
【０００６】またその製造方法は、ポリオレフィンと酸
化触媒からなる組成物をあらかじめ溶融混練して、エチ
レン−酢酸ビニル共重合体ケン化物中に分散することに
よりなされる。以下に、本発明を更に詳細に説明する。Further, the production method is carried out by previously melt-kneading a composition comprising a polyolefin and an oxidation catalyst and dispersing the composition in a saponified ethylene-vinyl acetate copolymer. The present invention will be described in more detail below.
【０００７】本発明に用いられるポリオレフィンとして
は、例えば、低密度ポリエチレン、中密度ポリエチレ
ン、高密度ポリエチレン等のポリエチレン、ポリプロピ
レンのホモあるいは、ブロックポリマー又は、ランダム
共重合体、ポリブテン、エチレン−αオレフィン（炭素
原子数３以上）共重合体等が挙げられる。なお、ポリオ
レフィン中の酸化防止剤含有量は５００ｐｐｍ以下が望
ましい。Examples of the polyolefin used in the present invention include polyethylene such as low-density polyethylene, medium-density polyethylene and high-density polyethylene, homopolymer of polypropylene, block polymer or random copolymer, polybutene, ethylene-α-olefin ( Copolymers having 3 or more carbon atoms) can be mentioned. The antioxidant content in the polyolefin is preferably 500 ppm or less.
【０００８】また、エチレン−酢酸ビニル共重合体ケン
化物（以下ＥＶＯＨ）としては、エチレン含有量が２２
〜４８モル％、ケン化度が９９〜１００モル％のものが
酸素バリヤー性の効果の面で好ましい。Further, the saponified ethylene-vinyl acetate copolymer (hereinafter referred to as EVOH) has an ethylene content of 22.
˜48 mol% and a saponification degree of 99-100 mol% are preferable from the viewpoint of the effect of oxygen barrier property.
【０００９】本発明においては、上記ポリオレフィンあ
るいはＥＶＯＨに核剤又は種々の添加剤、例えば相溶化
剤、滑剤、アンチブロッキング剤、安定剤、防曇剤、着
色剤等を含有してもよい。相溶化剤としては、無水マレ
イン酸グラフト変成させたポリオレフィン等が用いられ
る。In the present invention, the above polyolefin or EVOH may contain a nucleating agent or various additives such as a compatibilizer, a lubricant, an antiblocking agent, a stabilizer, an antifogging agent and a colorant. As the compatibilizing agent, a maleic anhydride graft-modified polyolefin or the like is used.
【００１０】本発明に用いられる酸化触媒とは、ポリオ
レフィンの酸素酸化を促進させることにより、ポリオレ
フィンを浸透透過しようとする酸素をポリオレフィンと
反応させ、酸素透過率を低下させ、結果としてポリオレ
フィンの酸素バリヤー性を向上させうるものであればよ
く、このような酸化触媒としては好ましくは遷移金属の
化合物等からなる酸化触媒が用いられる。The oxidation catalyst used in the present invention means that oxygen which permeates and permeates the polyolefin is reacted with the polyolefin by promoting the oxygen oxidation of the polyolefin to reduce the oxygen permeability, and as a result, the oxygen barrier of the polyolefin. As long as it can improve the property, an oxidation catalyst made of a transition metal compound or the like is preferably used as such an oxidation catalyst.
【００１１】このような遷移金属の場合、金属イオンが
酸化状態から還元状態、還元状態から酸化状態へと遷移
する過程で、酸素とポリオレフィンが反応することによ
り酸化触媒として作用すると考えられる。In the case of such a transition metal, it is considered that oxygen reacts with polyolefin to act as an oxidation catalyst in the process of transition of a metal ion from an oxidized state to a reduced state and from a reduced state to an oxidized state.
【００１２】このような遷移金属としては、好ましく
は、Ｃｏ、Ｍｎ、Ｆｅ、Ｃｕ、Ｎｉ、Ｔｉ、Ｖ、Ｃｒ等
の金属が挙げられ、中でもＣｏが好ましく用いられる。
これらの金属の化合物としては、有機酸の塩が用いられ
る。このような有機酸としては例えば、ステアリン酸、
アセチルアセトン酸、ジメチルジチオカルバミン酸、リ
ノール酸、ナフテン酸、トール酸、オレイン酸、樹脂
酸、カプリン酸が挙げられる。Examples of such a transition metal include metals such as Co, Mn, Fe, Cu, Ni, Ti, V and Cr, and Co is preferably used.
As the compounds of these metals, salts of organic acids are used. Examples of such an organic acid include stearic acid,
Examples thereof include acetylacetonic acid, dimethyldithiocarbamic acid, linoleic acid, naphthenic acid, tallic acid, oleic acid, resin acid and capric acid.
【００１３】また本発明の酸化触媒としては、衛生的で
あること、無色であること、安価であること等の理由か
らＡｌ、Ｍｇ、Ｃａ、Ｚｎ化合物も用いることができ
る。上記酸化触媒は、組成中、金属原子重量で１００ｐ
ｐｍ以上となる量を含有されていることが望ましい。Further, as the oxidation catalyst of the present invention, Al, Mg, Ca and Zn compounds can also be used because they are hygienic, colorless and inexpensive. The above-mentioned oxidation catalyst has a metal atomic weight of 100 p
It is desirable that the amount is pm or more.
【００１４】また、このような酸化触媒は高濃度に含有
される程、バリヤー性の面では優れた効果を発揮する
が、含有量が多すぎると急速な酸素吸収によりポリオレ
フィンが劣化し、ＥＶＯＨに分散した際に変色する虞が
あることより、組成物に対し、２０００ｐｐｍ以下で用
いられることが好ましい。Further, the higher the concentration of such an oxidation catalyst, the more excellent the effect in terms of barrier property is. However, if the content is too high, the polyolefin is deteriorated due to rapid oxygen absorption, resulting in EVOH. Since it may discolor when dispersed, it is preferably used at 2000 ppm or less based on the composition.
【００１５】本発明の酸素バリヤー性樹脂組成物は、Ｅ
ＶＯＨ中に酸化触媒を含有するポリオレフィンを分散す
ることにより形成するが、このＥＶＯＨと酸化触媒を含
有するポリオレフィンの種類の組み合わせは特に問わな
い。すなわち、酸化触媒を含有するポリオレフィンは、
ＥＶＯＨ中に溶け合うことなく島状に存在しても、酸化
触媒との反応による酸素吸収により、酸素バリヤー性を
向上せしめるものである。このような分散におけるポリ
オレフィンと、ＥＶＯＨの混合比は、１：１００〜１０
０：１００である。The oxygen barrier resin composition of the present invention comprises E
It is formed by dispersing a polyolefin containing an oxidation catalyst in VOH, but the combination of the EVOH and the polyolefin containing an oxidation catalyst is not particularly limited. That is, the polyolefin containing the oxidation catalyst,
Even if they exist in EVOH in the form of islands without being dissolved in each other, the oxygen barrier property is improved by the absorption of oxygen by the reaction with the oxidation catalyst. The mixing ratio of polyolefin and EVOH in such dispersion is 1: 100 to 10
It is 0: 100.
【００１６】本発明において、酸化触媒とポリオレフィ
ンを、二軸混練機等を用いてあらかじめ溶融混練してお
く。しかるのちに、この酸化触媒を含有するポリオレフ
ィン組成物をフィルム、シート、容器等の包装材料加工
の際にＥＶＯＨに分散せしめるものである。In the present invention, the oxidation catalyst and the polyolefin are melt-kneaded in advance using a biaxial kneader or the like. Then, the polyolefin composition containing the oxidation catalyst is dispersed in EVOH at the time of processing a packaging material such as a film, a sheet and a container.
【００１７】すなわち、あらかじめ溶融混練することで
ポリオレフィン中に酸化触媒をより良く分散せしめ、ポ
リオレフィンの酸素吸収反応を向上するものである。That is, by previously melt-kneading, the oxidation catalyst is better dispersed in the polyolefin and the oxygen absorption reaction of the polyolefin is improved.
【００１８】また本発明において、酸化触媒は有機酸塩
が用いられているが、このような有機酸は、従来、滑剤
等で用いられており、ポリオレフィンの加工時の粘度を
低下させる働きをもつ。すなわち、酸化触媒とポリオレ
フィン組成物の粘度低下させることで、ＥＶＯＨ中への
分散の向上を達成する。またこの分散性を向上する目的
で、相溶化剤をＥＶＯＨに対して１：１００〜４０：１
００重量部含有しても良い。In the present invention, an organic acid salt is used as the oxidation catalyst, and such an organic acid has been conventionally used as a lubricant or the like and has a function of lowering the viscosity of the polyolefin during processing. . That is, by improving the viscosity of the oxidation catalyst and the polyolefin composition, the dispersion in EVOH is improved. Further, in order to improve the dispersibility, the compatibilizer is 1: 100 to 40: 1 with respect to EVOH.
You may contain 00 weight part.
【００１９】当該酸化触媒はいずれも粉末であるが、例
えば、二軸混練押出機を用いて、酸化触媒とポリオレフ
ィン組成物を、樹脂ペレット型に加工して、マスターバ
ッチとすれば、これをＥＶＯＨ中に分散し、酸素バリヤ
ー性樹脂組成物とする際、あるいは、フィルム、シー
ト、容器等、包装材料に加工の際に酸化触媒が飛散する
ことなく、清浄な環境で作業することができる。Each of the oxidation catalysts is a powder. For example, if the oxidation catalyst and the polyolefin composition are processed into a resin pellet type by using a twin-screw kneading extruder to form a master batch, this is EVOH. It is possible to work in a clean environment without dispersing the oxidation catalyst when it is dispersed into an oxygen barrier resin composition or when it is processed into a packaging material such as a film, sheet or container.
【００２０】次に、上記の如く酸化触媒を含有するポリ
オレフィンをＥＶＯＨ中に分散して得た酸素バリヤー性
樹脂組成物は、熱による種々の成形方法を用いて、フィ
ルム、シート、容器その他の包装材料等に成形すること
ができる。Next, the oxygen-barrier resin composition obtained by dispersing the polyolefin containing the oxidation catalyst in EVOH as described above is subjected to various thermal molding methods to form films, sheets, containers and other packaging. It can be formed into a material or the like.
【００２１】例えば、溶融押出成形によりフィルム、シ
ート、パイプ等を、射出成形により容器形状に、また、
中空成形によりボトル状等の中空容器に成形できる。中
空成形には、押出成形によりパリソンを成形し、これを
ブローして成形を行う押出中空成形と、射出成形により
プリフォームを成形してこれをブローして成形を行う射
出中空成形がある。For example, a film, a sheet, a pipe or the like is melt-extruded into a container shape by injection molding, or
By hollow molding, a hollow container such as a bottle can be molded. Hollow molding includes extrusion hollow molding in which a parison is molded by extrusion and then blown to perform molding, and injection hollow molding in which a preform is molded by injection molding and then blown to perform molding.
【００２２】このような積層体としては、好ましくは、
酸素バリヤー性樹脂組成物層の片面又は両面に他の熱可
塑性樹脂層、例えば酸化触媒を含まない熱可塑性樹脂層
を形成させたものが用いられる。As such a laminated body, preferably,
An oxygen barrier resin composition layer having another thermoplastic resin layer formed on one surface or both surfaces thereof, for example, a thermoplastic resin layer containing no oxidation catalyst is used.
【００２３】用いられる他の熱可塑性樹脂層としては、
ポリエステル、ポリオレフィン、ポリアミド、ポリウレ
タン、ポリ塩化ビニル、ポリ塩化ビニリデン、ポリアク
リロニトリル、ポリカーボネート等あるいはこれらの変
性樹脂からなる層が挙げられる。Other thermoplastic resin layers used include:
Examples of the layer include polyester, polyolefin, polyamide, polyurethane, polyvinyl chloride, polyvinylidene chloride, polyacrylonitrile, polycarbonate and the like, or modified resins thereof.
【００２４】これらの層を積層する方法としては、接着
剤を用いたラミネーション、共押出成形、共押出中空成
形又は共射出中空成形等の各方法が用いられる。As a method for laminating these layers, each method such as lamination using an adhesive, coextrusion molding, coextrusion hollow molding or coinjection hollow molding is used.
【００２５】本発明の酸素バリヤー性樹脂組成物は、以
下の如く種々の用途に用いることが可能である。例え
ば、食品等、酸素により変性しやすい物質の保存用容器
の材料として用いることができる。The oxygen barrier resin composition of the present invention can be used in various applications as follows. For example, it can be used as a material for a container for storage of a substance that is easily modified by oxygen, such as food.
【００２６】シート又はフィルム状に成形する場合は、
袋用材料、ブリスターパック用材料、容器の蓋等に用い
ることができる。また、パイプ状に成形する場合は、両
端の開口部を金属蓋等で密着することにより、容器とす
ることができる。更に射出成形容器やボトルの場合は、
そのまま容器として使用することができる。When molding into a sheet or film,
It can be used as a bag material, a blister pack material, a container lid, and the like. Further, in the case of molding into a pipe shape, a container can be obtained by closely adhering the openings at both ends with a metal lid or the like. For injection molded containers and bottles,
It can be used as it is as a container.
【００２７】[0027]
【作用】ポリオレフィンは酸化触媒の存在下で、空気中
の酸素と反応してラジカル反応によるポリオレフィンの
酸素吸収反応を促進させ、結果的に大気中の酸素を消費
し酸素バリヤー性を向上せしめるものと推測される。[Function] Polyolefin reacts with oxygen in the air in the presence of an oxidation catalyst to accelerate the oxygen absorption reaction of the polyolefin by a radical reaction, and as a result, oxygen in the atmosphere is consumed and the oxygen barrier property is improved. Guessed.
【００２８】本発明の構成、すなわち酸化触媒を含有す
るポリオレフィン組成物を、ＥＶＯＨ中に分散すること
で、優れた酸素バリヤー性を奏する。By the composition of the present invention, that is, the polyolefin composition containing an oxidation catalyst is dispersed in EVOH, excellent oxygen barrier properties are exhibited.
【００２９】[0029]
【実施例】以下に実施例を挙げて、本発明を更に具体的
に説明する。The present invention will be described more specifically with reference to the following examples.
【００３０】＜実施例１＞ステアリン酸Ｃｏ（II）２０
０ｐｐｍと、ポリプロピレンＢ240 （三井石油化学
（株）；ＭＩ＝０．５，酸化防止剤なし）を混合し、二
軸混練押出機を用いて押出温度２２０℃にて押出成形を
行い、樹脂ペレットを得た。次いで、ＥＶＯＨ；商品名
エバールＦ１０１（（株）クラレ；エチレン含有量３２
モル％，ケン化度９９％以上）に対し混合比１０：９０
（重量比）で分散したものを２１０℃の押出温度にて押
出成形を行い、厚み６０μｍのフィルムを得た。作成し
たフィルムの両面にウレタン系接着剤を用いて、厚さ５
０μｍの無延伸ポリプロピレンフィルムを積層して積層
フィルムを作成した。<Example 1> Co (II) stearate 20
0 ppm and polypropylene B240 (Mitsui Petrochemical Co., Ltd .; MI = 0.5, no antioxidant) were mixed, and extrusion molding was performed at an extrusion temperature of 220 ° C. using a twin-screw kneading extruder to obtain resin pellets. Obtained. Next, EVOH; trade name Eval F101 (Kuraray Co., Ltd .; ethylene content 32
(Mole%, saponification degree 99% or more) 10:90
The dispersion (weight ratio) was extruded at an extrusion temperature of 210 ° C. to obtain a film having a thickness of 60 μm. Use a urethane adhesive on both sides of the created film to give a thickness of 5
A 0 μm unstretched polypropylene film was laminated to form a laminated film.
【００３１】＜比較例１＞実施例１において、ステアリ
ン酸Ｃｏ（II）を含有せしめなかった以外は実施例１と
同様にしてフィルムを成形した。Comparative Example 1 A film was formed in the same manner as in Example 1 except that Co (II) stearate was not added.
【００３２】＜比較例２＞ＥＶＯＨ；商品名エバールＦ
１０１（（株）クラレ；エチレン含有量３２モル％、ケ
ン化度９９％以上）を押出温度２１０℃で押出成形を行
い、厚み６０μｍのフィルムを得た。実施例１と同様に
してフィルムを成形した。<Comparative Example 2>EVOH; trade name Eval F
101 (Kuraray Co., Ltd .; ethylene content 32 mol%, saponification degree 99% or more) was extruded at an extrusion temperature of 210 ° C. to obtain a film having a thickness of 60 μm. A film was formed in the same manner as in Example 1.
【００３３】上記実施例１および比較例１、２で得られ
た各フィルムについて経時酸素透過率（Ｏ2 ＴＲ）の測
定結果を表１に示す。測定はモコンＯｘ−ＴＲＡＮ１０
／５０Ａ（モダンコントロール社製）で２５℃で行っ
た。Table 1 shows the measurement results of the time-dependent oxygen transmission rate (O 2 TR) of each film obtained in Example 1 and Comparative Examples 1 and 2. Measurement is Mokon Ox-TRAN10
/ 50A (manufactured by Modern Control Co.) at 25 ° C.
【００３４】[0034]
【表１】 [Table 1]
【００３５】表１より明らかなように実施例１の本発明
の酸素バリヤー性フィルムは、酸素透過率が経時的に減
少しており、極めて優れた酸素バリヤー性を有してい
る。As is apparent from Table 1, the oxygen barrier film of the present invention of Example 1 has a very low oxygen permeability and has an extremely excellent oxygen barrier property.
【００３６】＜実施例２＞実施例１における酸素バリヤ
ー性フィルム作成において、酸化触媒をステアリン酸コ
バルトに換えて、ステアリン酸アルミニウム、ステアリ
ン酸亜鉛、ステアリン酸マグネシウム、リノール酸コバ
ルト、ナフテン酸コバルトを表２に示すように用い、フ
ィルム試料Ａ，Ｂ，Ｃ，Ｄ，Ｅおよび酸化触媒を含まな
い比較例１のフィルム試料を実施例１と同様に評価した
結果を表２に示す。<Example 2> In the production of the oxygen barrier film in Example 1, aluminum stearate, zinc stearate, magnesium stearate, cobalt linoleate, and cobalt naphthenate were used instead of cobalt stearate as the oxidation catalyst. Table 2 shows the results of evaluating the film samples A, B, C, D, E and the film sample of Comparative Example 1 which were used as shown in Example 2 and did not contain an oxidation catalyst in the same manner as in Example 1.
【００３７】[0037]
【表２】 [Table 2]
【００３８】＊１ Ａ：ステアリン酸アルミニウム Ｂ：ステアリン酸亜鉛 Ｃ：ステアリン酸マグネシウム Ｄ：リノール酸コバルト Ｅ：ナフテン酸コバルト* 1 A: aluminum stearate B: zinc stearate C: magnesium stearate D: cobalt linoleate E: cobalt naphthenate
【００３９】表２より明らかなように各酸化触媒を用い
た場合においても酸素バリヤー効果は得られる。As is clear from Table 2, the oxygen barrier effect can be obtained even when each oxidation catalyst is used.
【００４０】[0040]
【発明の効果】以上詳細に説明したように、本発明によ
り、高価なエチレン−酢酸ビニル共重合体ケン化物、ポ
リ塩化ビニリデン等、他の酸素バリヤー性樹脂の使用を
少量化し、優れた酸素バリヤー性を有することのできる
熱可塑性の樹脂組成物およびその製造方法を提供でき
る。As described in detail above, according to the present invention, it is possible to reduce the use of expensive oxygen-vinyl acetate copolymer saponification products, polyvinylidene chloride, and other oxygen barrier resins, thereby providing an excellent oxygen barrier. It is possible to provide a thermoplastic resin composition capable of having properties and a method for producing the same.
【００４１】さらに前記樹脂組成物を少なくとも一層設
け、積層フィルム、シート、ボトル、容器等を作成する
ことにより優れた酸素バリヤー性を有する包装材料を提
供することができる。Further, by providing at least one layer of the resin composition to prepare a laminated film, a sheet, a bottle, a container or the like, a packaging material having an excellent oxygen barrier property can be provided.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０８Ｌ 23/26 29/04 // Ｃ０８Ｌ 23:10 (72)発明者 中村 圭子 東京都台東区台東一丁目５番１号 凸版印 刷株式会社内 (72)発明者 梅山 浩 東京都台東区台東一丁目５番１号 凸版印 刷株式会社内 (72)発明者 加藤 武男 東京都台東区台東一丁目５番１号 凸版印 刷株式会社内 (72)発明者 加藤 俊一 東京都台東区台東一丁目５番１号 凸版印 刷株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Reference number within the agency FI Technical display location C08L 23/26 29/04 // C08L 23:10 (72) Inventor Keiko Nakamura Taito-ku, Taito-ku, Tokyo Taito-ku 1-5-1 Toppan Printing Co., Ltd. (72) Inventor Hiroshi Umeyama 1-5-1, Taito Taito-ku, Tokyo 1-5 Toppan Printing Co., Ltd. (72) Inventor Takeo Kato 1-chome Taito, Taito-ku, Tokyo No. 5-1 Toppan Printing Co., Ltd. (72) Inventor Shunichi Kato 1-5-1 Taito, Taito-ku, Tokyo Inside Toppan Printing Co., Ltd.
Claims (3)
をエチレン−酢酸ビニル共重合体ケン化物中に分散させ
た酸素バリヤー性樹脂組成物。1. An oxygen barrier resin composition in which a composition comprising a polyolefin and an oxidation catalyst is dispersed in a saponified ethylene-vinyl acetate copolymer.
をあらかじめ溶融混練して、エチレン−酢酸ビニル共重
合体ケン化物中に分散することを特徴とする、酸素バリ
ヤー性樹脂組成物の製造方法。2. A method for producing an oxygen barrier resin composition, characterized in that a composition comprising a polyolefin and an oxidation catalyst is melt-kneaded in advance and dispersed in a saponified ethylene-vinyl acetate copolymer.
からなる酸素バリヤー性包装材料。3. An oxygen barrier packaging material comprising the oxygen barrier resin composition according to claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32747891A JPH05156095A (en) | 1991-12-11 | 1991-12-11 | Oxygen-barrier resin composition, its production and packaging material |
| EP92121072A EP0546546A1 (en) | 1991-12-11 | 1992-12-10 | Resin composition having oxygen barrier quality and process for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32747891A JPH05156095A (en) | 1991-12-11 | 1991-12-11 | Oxygen-barrier resin composition, its production and packaging material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05156095A true JPH05156095A (en) | 1993-06-22 |
Family
ID=18199608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32747891A Pending JPH05156095A (en) | 1991-12-11 | 1991-12-11 | Oxygen-barrier resin composition, its production and packaging material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05156095A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067154A3 (en) * | 1999-07-08 | 2002-03-06 | Kuraray Co., Ltd. | Thermoplastic resin composition and multilayered container using the same |
| US6599598B1 (en) | 1999-03-03 | 2003-07-29 | Kuraray Co., Ltd. | Oxygen absorptive resin composition |
| JP2003327848A (en) * | 2002-02-19 | 2003-11-19 | Toppan Printing Co Ltd | Oxygen-absorptive resin composition and laminate and package each using the composition |
| US6822031B2 (en) | 2000-09-01 | 2004-11-23 | Kuraray Co., Ltd. | Resin composition and a multilayered container |
| WO2005010101A1 (en) * | 2003-07-24 | 2005-02-03 | Kuraray Co., Ltd. | Oxygen-absorbing body, method for producing same, and packaging material using same |
| US7064158B2 (en) | 2000-09-01 | 2006-06-20 | Kuraray Co., Ltd. | Ethylene-vinyl alcohol copolymer composition and multilayered container using the same |
| WO2007010920A1 (en) * | 2005-07-19 | 2007-01-25 | Toyo Seikan Kaisha, Ltd. | Pellet for oxygen-absorbing resin composition and oxygen-absorbing resin composition |
| US8293346B2 (en) | 2005-03-23 | 2012-10-23 | Zeon Corporation | Oxygen absorbent and oxygen-absorbing multi-layer body |
| JP5090609B2 (en) * | 2000-09-01 | 2012-12-05 | 株式会社クラレ | Polyvinyl alcohol resin composition and multilayer container |
| JP5181671B2 (en) * | 2005-03-23 | 2013-04-10 | 日本ゼオン株式会社 | Oxygen-absorbing gas barrier resin composition and oxygen-absorbing gas barrier structure containing the same |
| EP2706082A1 (en) * | 2012-09-10 | 2014-03-12 | Kraft Foods Group Brands LLC | Oxygen Scavenger System in a Polyolefin Matrix |
-
1991
- 1991-12-11 JP JP32747891A patent/JPH05156095A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6599598B1 (en) | 1999-03-03 | 2003-07-29 | Kuraray Co., Ltd. | Oxygen absorptive resin composition |
| US6960376B2 (en) | 1999-03-03 | 2005-11-01 | Kuraray Co., Ltd. | Oxygen absorptive resin composition |
| US6759107B1 (en) | 1999-07-08 | 2004-07-06 | Kuraray Co., Ltd. | Oxygen absorbing compositions and articles |
| EP1067154A3 (en) * | 1999-07-08 | 2002-03-06 | Kuraray Co., Ltd. | Thermoplastic resin composition and multilayered container using the same |
| JP5090609B2 (en) * | 2000-09-01 | 2012-12-05 | 株式会社クラレ | Polyvinyl alcohol resin composition and multilayer container |
| US6822031B2 (en) | 2000-09-01 | 2004-11-23 | Kuraray Co., Ltd. | Resin composition and a multilayered container |
| US7064158B2 (en) | 2000-09-01 | 2006-06-20 | Kuraray Co., Ltd. | Ethylene-vinyl alcohol copolymer composition and multilayered container using the same |
| JP2003327848A (en) * | 2002-02-19 | 2003-11-19 | Toppan Printing Co Ltd | Oxygen-absorptive resin composition and laminate and package each using the composition |
| WO2005010101A1 (en) * | 2003-07-24 | 2005-02-03 | Kuraray Co., Ltd. | Oxygen-absorbing body, method for producing same, and packaging material using same |
| US7396865B2 (en) | 2003-07-24 | 2008-07-08 | Kuraray Co., Ltd. | Oxygen absorber, method for producing the same, and packaging material using the same |
| JP4726625B2 (en) * | 2003-07-24 | 2011-07-20 | 株式会社クラレ | Oxygen absorber, method for producing the same, and packaging material using the same |
| JPWO2005010101A1 (en) * | 2003-07-24 | 2006-11-24 | 株式会社クラレ | Oxygen absorber, method for producing the same, and packaging material using the same |
| US8293346B2 (en) | 2005-03-23 | 2012-10-23 | Zeon Corporation | Oxygen absorbent and oxygen-absorbing multi-layer body |
| JP5181671B2 (en) * | 2005-03-23 | 2013-04-10 | 日本ゼオン株式会社 | Oxygen-absorbing gas barrier resin composition and oxygen-absorbing gas barrier structure containing the same |
| WO2007010920A1 (en) * | 2005-07-19 | 2007-01-25 | Toyo Seikan Kaisha, Ltd. | Pellet for oxygen-absorbing resin composition and oxygen-absorbing resin composition |
| JP2007023193A (en) * | 2005-07-19 | 2007-02-01 | Toyo Seikan Kaisha Ltd | Pellet for oxygen-absorbing resin composition and oxygen-absorbing resin composition |
| US8232347B2 (en) | 2005-07-19 | 2012-07-31 | Toyo Seikan Kaisha, Ltd. | Method of making oxygen-absorbing resin composition |
| EP2706082A1 (en) * | 2012-09-10 | 2014-03-12 | Kraft Foods Group Brands LLC | Oxygen Scavenger System in a Polyolefin Matrix |
| CN103694522A (en) * | 2012-09-10 | 2014-04-02 | 卡夫食品集团品牌有限责任公司 | Oxygen scavenger system in a polyolefin matrix |
| US8962740B2 (en) | 2012-09-10 | 2015-02-24 | Kraft Foods Group Brands Llc | Oxygen scavenger system in a polyolefin matrix |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5164438A (en) | Resin composition having oxygen barrier quality | |
| EP0546546A1 (en) | Resin composition having oxygen barrier quality and process for producing the same | |
| JPH05156095A (en) | Oxygen-barrier resin composition, its production and packaging material | |
| US5177138A (en) | Resin composition including a saponified ethylene-vinyl acetate copolymer, polyolefin, a graft copolymer and hydrotalcite | |
| JP4642195B2 (en) | Resin composition pellets and molded products | |
| JPH0551048A (en) | Oxygen barrier resin composition and manufacture thereof and packaging material | |
| US5214090A (en) | Resin composition and use thereof | |
| JPH05247276A (en) | Oxygen-barrier resin composition | |
| JPH05170980A (en) | Oxygen barrier resin composition and packaging material using the same | |
| JP3689152B2 (en) | Resin composition and use thereof | |
| US20230192963A1 (en) | Modified ethylene-vinyl alcohol resin and production method therefor | |
| JP3451772B2 (en) | Oxygen barrier resin composition, method for producing the same, and oxygen barrier laminate | |
| JPH06248122A (en) | Oxygen-barrier resin composition and its production | |
| JP2001081262A (en) | Resin composition and laminate | |
| JP3180922B2 (en) | Oxygen barrier film and oxygen barrier packaging material | |
| JP4712140B2 (en) | Molded articles and laminates | |
| EP0483695A2 (en) | Resin composition and use thereof | |
| JP3629096B2 (en) | Resin composition and use thereof | |
| JP2001288323A (en) | Resin composition pellet and use of the same | |
| JP2001080002A (en) | Laminated packaging material | |
| JP4634555B2 (en) | Resin composition and laminate | |
| JP7340125B1 (en) | Multilayer film, multilayer structure, packaging material, recovery composition, and method for recovering multilayer film or multilayer structure | |
| JP2000290458A (en) | Resin composition and laminate | |
| JPH0559226A (en) | Resin composition having oxygen barrier properties, and sheet and container having oxygen barrier properties prepared therefrom | |
| JP2001302710A (en) | Resin composition and laminate |