JPH10182843A - Oxygen gas barrier resin composition and its production - Google Patents
Oxygen gas barrier resin composition and its productionInfo
- Publication number
- JPH10182843A JPH10182843A JP34402096A JP34402096A JPH10182843A JP H10182843 A JPH10182843 A JP H10182843A JP 34402096 A JP34402096 A JP 34402096A JP 34402096 A JP34402096 A JP 34402096A JP H10182843 A JPH10182843 A JP H10182843A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen gas
- gas barrier
- resin
- barrier resin
- melt
- 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.)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は押出成形など、一般
の熱成形原料として好ましい酸素ガスバリア性樹脂組成
物の製造法及びこの方法により得られる樹脂組成物に関
する。本発明の樹脂組成物は、食品、医薬品、電子部品
等を保護する為に用いられる酸素ガスバリア性の優れた
各種包装容器の材料として好ましい。The present invention relates to a method for producing an oxygen gas barrier resin composition which is preferable as a general thermoforming raw material such as extrusion molding, and a resin composition obtained by this method. The resin composition of the present invention is preferable as a material for various packaging containers having excellent oxygen gas barrier properties used for protecting foods, medicines, electronic components and the like.
【０００２】[0002]
【従来の技術】食品、医薬品、電子部品等をフィルム、
容器で包装する事により内容物の酸化を防止し、品質を
長期間保つことが提案されている。ガスバリア性の優れ
たフィルムとしては、プラスチックフィルムに、塩化ビ
ニリデンやエチレン−酢酸ビニル共重合体ケン化物をコ
ーティングしたもの、アルミニウム等の金属を蒸着した
もの、さらに酸化珪素、アルミナ等のセラミックスを蒸
着、スパッター等によりコーティングしたもの、あるい
はエチレン−酢酸ビニル共重合体ケン化物等のフィルム
を積層し多層フィルムにしたものが一般的に知られてい
る。2. Description of the Related Art Food, pharmaceuticals, electronic parts, etc.
It has been proposed to prevent the oxidation of the contents by packaging in a container and maintain the quality for a long period of time. As a film with excellent gas barrier properties, a plastic film coated with vinylidene chloride or a saponified ethylene-vinyl acetate copolymer, a metal such as aluminum deposited, and a ceramic such as silicon oxide and alumina deposited, Generally, those coated with a sputter or the like, or those obtained by laminating films such as saponified ethylene-vinyl acetate copolymer into a multilayer film are generally known.
【０００３】しかしながら、このような方法では工程数
が多くなり包材コストの上昇が大きく、またコーティン
グや積層により多層化しているのでリサイクルが非常に
困難である。また、塩化ビニリデンなどの塩素を含むも
のは焼却処分する際に、塩素ガスが発生したり、焼却炉
にダイオキシンが認められたり、大気中に拡散した塩素
ガスが酸性雨の一因であると言われており使用が抑制さ
れることがある。However, in such a method, the number of steps is increased, and the cost of the packaging material is greatly increased. In addition, since it is multi-layered by coating or laminating, it is very difficult to recycle. In addition, chlorine-containing substances such as vinylidene chloride generate chlorine gas during incineration, dioxin is found in incinerators, and chlorine gas diffused into the atmosphere is said to be a cause of acid rain. The use may be suppressed.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は酸素ガ
スバリア性に優れた樹脂組成物の製造法を提供すること
にある。本発明の製造法にて得られた樹脂は、酸素ガス
バリア性に優れるとともに、リサイクルが容易に可能で
あり、また吸湿による酸素ガスバリア性の低下が少な
い。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing a resin composition having excellent oxygen gas barrier properties. The resin obtained by the production method of the present invention has excellent oxygen gas barrier properties, can be easily recycled, and has little decrease in oxygen gas barrier properties due to moisture absorption.
【０００５】本発明者は様々な樹脂の組み合わせ、混練
条件を粘度比、剪断速度の観点から詳細に検討した。そ
の結果、酸素ガスバリア性を有する樹脂及び防湿性を有
する樹脂を、所定の粘度比を有する条件下に混練するこ
とにより、特定のモルホロジーが得られ、このような組
成物が酸素ガスバリア性の湿度依存性の点から好ましい
との知見を得て本発明を完成した。The present inventors have studied in detail various combinations of resins and kneading conditions from the viewpoints of viscosity ratio and shear rate. As a result, a specific morphology is obtained by kneading a resin having an oxygen gas barrier property and a resin having a moisture-proof property under a condition having a predetermined viscosity ratio, and such a composition has a humidity-dependent property. The present invention was completed based on the finding that it is preferable from the viewpoint of properties.
【０００６】[0006]
【課題を解決するための手段】すなわち、本発明は酸素
ガスバリア性樹脂及び防湿性樹脂の２種類の樹脂を溶融
混練して得られる樹脂組成物の製造法であり、溶融混練
を酸素ガスバリア性樹脂の溶融粘度(ρO)に対する、防
湿性樹脂樹脂の溶融粘度(ρH)の比(ρO/ρH)が０.０５
〜１.０となる温度及び剪断速度の下に行う酸素ガスバ
リア性樹脂組成物の製造法及びこれから得られる酸素ガ
スバリア性樹脂組成物を提供するものである。That is, the present invention relates to a method for producing a resin composition obtained by melting and kneading two kinds of resins, an oxygen gas barrier resin and a moisture-proof resin. for melt viscosity ([rho O), the ratio of the melt viscosity of the moisture-proof resin resin (ρ H) (ρ O / ρ H) 0.05
An object of the present invention is to provide a method for producing an oxygen gas barrier resin composition at a temperature and a shear rate of up to 1.0 and an oxygen gas barrier resin composition obtained therefrom.
【０００７】[0007]
（酸素ガスバリア性樹脂）本発明に用いられる酸素ガス
バリア性樹脂とは、高度な酸素ガスバリア性を有してい
る樹脂であり、代表的な樹脂としては例えばポリエステ
ル樹脂、ポリアミド樹脂、エチレン−酢酸ビニル共重合
体ケン化物等が挙げられる。中でも、酸素ガスバリア性
が非常に優れているエチレン−酢酸ビニル共重合体ケン
化物が好ましい。ここでいうエチレン−酢酸ビニル共重
合体ケン化物は、エチレンと酢酸ビニルとの共重合体を
一般に行われる方法でケン化させることによって製造す
ることができる。エチレン−酢酸ビニル共重合体中のエ
チレンの共重合割合は、一般には２０〜８０モル％であ
り、特に２５〜７５モル％が好ましい。エチレンの共重
合割合が２０モル％未満では、成形加工性の点で問題が
ある。一方、８０モル％を越えると、ガスバリア性の点
で不足である。また、ケン化度は通常９０モル％以上で
あり、とりわけ９５％以上が望ましい。このような樹脂
としては、ＭＦＲ(ＪＩＳ Ｋ ７２１０、条件４)が１〜
４０ｇ／１０minであるのが好ましく、より好ましくは
３〜３０ｇ／１０minであり、最も好ましくは５〜２０
ｇ／１０minである。ＭＦＲが前記の値より小さいと、
押出しシートの表面外観が悪くなる傾向があり好ましく
ない。一方、ＭＦＲが前記の値より大きいとシート押出
し加工性が不安定となり好ましくない。(Oxygen Gas Barrier Resin) The oxygen gas barrier resin used in the present invention is a resin having a high oxygen gas barrier property, and typical resins include, for example, polyester resins, polyamide resins, and ethylene-vinyl acetate. And saponified polymers. Among them, a saponified ethylene-vinyl acetate copolymer having an extremely excellent oxygen gas barrier property is preferred. The saponified ethylene-vinyl acetate copolymer referred to herein can be produced by saponifying a copolymer of ethylene and vinyl acetate by a generally used method. The copolymerization ratio of ethylene in the ethylene-vinyl acetate copolymer is generally 20 to 80 mol%, and particularly preferably 25 to 75 mol%. If the ethylene copolymerization ratio is less than 20 mol%, there is a problem in terms of moldability. On the other hand, if it exceeds 80 mol%, it is insufficient in terms of gas barrier properties. The saponification degree is usually at least 90 mol%, and particularly preferably at least 95%. As such a resin, MFR (JIS K7210, condition 4) is 1 to 1.
It is preferably 40 g / 10 min, more preferably 3 to 30 g / 10 min, and most preferably 5 to 20 g / 10 min.
g / 10 min. When the MFR is smaller than the above value,
The surface appearance of the extruded sheet tends to deteriorate, which is not preferable. On the other hand, if the MFR is larger than the above value, the sheet extrusion processability becomes unstable, which is not preferable.
【０００８】酸素ガスバリア性樹脂の配合量は組成物全
量に対して、１５〜５０重量％、好ましくは２０〜４５
重量％、より好ましくは２５〜４０重量％である。酸素
ガスバリア性樹脂の配合量が前記の範囲より多いと、吸
湿による酸素ガスバリア性の低下が大きくなる。また、
酸素ガスバリア性樹脂の配合量が前記の範囲より少ない
と優れた酸素ガスバリア性が得られない。The amount of the oxygen gas barrier resin is 15 to 50% by weight, preferably 20 to 45% by weight, based on the total amount of the composition.
%, More preferably 25 to 40% by weight. If the blending amount of the oxygen gas barrier resin is larger than the above range, the decrease in the oxygen gas barrier property due to moisture absorption will increase. Also,
If the amount of the oxygen gas barrier resin is less than the above range, excellent oxygen gas barrier properties cannot be obtained.
【０００９】（防湿性樹脂）本発明に用いられる防湿性
樹脂とは、高度な防湿性を有している樹脂であり、代表
的な樹脂としては例えばポリエチレン樹脂、ポリプロピ
レン樹脂、環状ポリオレフィン樹脂等が挙げられる。中
でも、水蒸気のバリア性に優れており、物性のバランス
が良好なプロピレンのホモポリマー、高密度ポリエチレ
ンが好ましい。プロピレンのホモポリマーとしては、Ｍ
ＦＲ(ＪＩＳ Ｋ ７２１０、条件１４)が０．１〜１０ｇ
／１０minであるのが好ましく、より好ましくは０．５
〜８ｇ／１０minであり、最も好ましくは１〜５ｇ／１
０minである。また、高密度ポリエチレンとしては、Ｍ
ＦＲ(ＪＩＳ Ｋ ７２１０、条件４)が０．１〜１０ｇ／
１０minであるのが好ましく、より好ましくは０．５〜
８ｇ／１０minであり、最も好ましくは１〜５ｇ／１０m
inである。(Moisture Proof Resin) The moisture proof resin used in the present invention is a resin having a high moisture proof property, and typical resins include, for example, polyethylene resin, polypropylene resin, cyclic polyolefin resin and the like. No. Among them, a propylene homopolymer and a high-density polyethylene which are excellent in a barrier property against water vapor and have a good balance of physical properties are preferable. As the propylene homopolymer, M
FR (JIS K 7210, condition 14) is 0.1 to 10 g
/ 10 min, more preferably 0.5 min.
８8 g / 10 min, most preferably 1 to 5 g / 1
0 min. As high-density polyethylene, M
FR (JIS K 7210, condition 4) is 0.1 to 10 g /
It is preferably 10 min, more preferably 0.5 to
8 g / 10 min, most preferably 1 to 5 g / 10 m
in.
【００１０】防湿性樹脂の配合量は組成物全量に対し
て、８５〜５０重量％、好ましくは８０〜５５重量％、
より好ましくは７５〜６０重量％である。高防湿性樹脂
の配合量が前記の範囲より多いと、酸素ガスバリア性で
良好な結果が得られず、防湿性樹脂の配合量が前記の範
囲より少ないと防湿性が不足し、吸湿による酸素ガスバ
リア性の低下がおこる。The amount of the moisture-proof resin is 85 to 50% by weight, preferably 80 to 55% by weight, based on the total amount of the composition.
More preferably, it is 75 to 60% by weight. When the amount of the highly moisture-proof resin is more than the above range, good results cannot be obtained in the oxygen gas barrier property, and when the amount of the moisture-proof resin is less than the above range, the moisture resistance is insufficient and the oxygen gas barrier due to moisture absorption is insufficient. The sex is reduced.
【００１１】本発明樹脂組成物の製造にあたっては、当
業者に周知の融点のデータを考慮して所定の要件を満た
すよう、前記の樹脂を含め種々の樹脂を適宜組み合わせ
溶融混合する。In the production of the resin composition of the present invention, various resins including the above-mentioned resins are appropriately combined and melt-mixed so as to satisfy predetermined requirements in view of melting point data well known to those skilled in the art.
【００１２】本発明の組成物には、さらに必要に応じて
基本的性質を損なわず、衛生上許容される範囲において
添加剤、例えば染顔料、安定剤、可塑剤、帯電防止剤、
紫外線吸収剤、酸化防止剤、滑剤、造核剤、充填剤など
を添加してもよい。The composition of the present invention may further contain, if necessary, additives such as dyes and pigments, stabilizers, plasticizers, antistatic agents without impairing the basic properties and within hygiene-acceptable ranges.
UV absorbers, antioxidants, lubricants, nucleating agents, fillers, and the like may be added.
【００１３】(樹脂組成物の製造）本発明の樹脂組成物
を製造するには、所定量の前記の酸素ガスバリア性樹脂
と防湿性樹脂とを溶融混練する。かかる混練は、酸素ガ
スバリア性樹脂の溶融粘度(ρO)に対する、防湿性樹脂
の溶融粘度(ρH)の比(ρO/ρH)が０.０５〜１.０、好ま
しくは０．１〜０．８、より好ましくは０．２〜０．７
となる温度及び剪断速度にて行う。混練温度は典型的に
は高融点の方の樹脂の融点より約１０〜５０℃高い温
度、例えば、エチレン−酢酸ビニルケン化物とポリプロ
ピレンとの場合、約１７０〜２３０℃で混練するのが好
ましい。また、樹脂の混練時の剪断速度は大きいことが
好ましく１００sec-1以上、好ましくは２００sec-1以上
であり、より好ましくは５００sec-1以上である。溶融
粘度の比(ρO/ρH)が前記の範囲をはずれると、共連続
的な構造を有する相互侵入ポリマー網状構造のモルホロ
ジーが得られず、吸湿による酸素ガスバリア性の低下が
大きくなるとともに、優れた酸素ガスバリア性が得られ
ない。(Production of Resin Composition) In order to produce the resin composition of the present invention, predetermined amounts of the above-mentioned oxygen gas barrier resin and moisture-proof resin are melt-kneaded. In such kneading, the ratio (ρ O / ρ H ) of the melt viscosity (ρ H ) of the moisture-proof resin to the melt viscosity (ρ O ) of the oxygen gas barrier resin is 0.05 to 1.0, preferably 0.1 to 1.0. ~ 0.8, more preferably 0.2 ~ 0.7
At a temperature and a shear rate of The kneading temperature is preferably about 10 to 50 ° C. higher than the melting point of the resin having the higher melting point, for example, about 170 to 230 ° C. in the case of saponified ethylene-vinyl acetate and polypropylene. Further, the shear rate at the time of the kneaded resin is large, it is preferably 100 sec -1 or more, preferably 200 sec -1 or more, more preferably 500 sec -1 or more. If the melt viscosity ratio (ρ O / ρ H ) deviates from the above range, the morphology of the interpenetrating polymer network having a co-continuous structure cannot be obtained, and the oxygen gas barrier property due to moisture absorption is greatly reduced. Excellent oxygen gas barrier properties cannot be obtained.
【００１４】溶融混練には通常の溶融押出装置等が用い
られてよいが、相互侵入ポリマー網状構造を形成するた
めには、高剪断の得られる２軸混練機により混練を行う
のが好ましい。For melt kneading, an ordinary melt extruder or the like may be used, but in order to form an interpenetrating polymer network structure, kneading is preferably performed with a biaxial kneader capable of obtaining high shear.
【００１５】本発明の樹脂組成物は、通常、シート、フ
ィルム、ペレット、パウダーなどの形態に成形して二次
成形に用いることができる。共連続的な構造を有する相
互侵入ポリマー網状構造のモルホロジーを有する樹脂組
成物は二次成形の際の外部応力の程度によって変形した
相互侵入ポリマー網状構造か、又はさらに変形した層状
構造を有する成形品となる。酸素ガスバリア性樹脂がこ
のような構造をとることで成形品は優れた酸素ガスバリ
ア性が保持される。The resin composition of the present invention can be usually formed into a form such as a sheet, a film, a pellet, a powder, and used for secondary molding. A resin composition having a morphology of an interpenetrating polymer network having a bicontinuous structure is a molded article having an interpenetrating polymer network deformed by the degree of external stress during secondary molding, or a layered structure further deformed Becomes When the oxygen gas barrier resin has such a structure, the molded article maintains excellent oxygen gas barrier properties.
【００１６】成形にあたりシートとする場合は、Ｔ−ダ
イ法等を用いた公知の成形法が採用されてよい。得られ
たシートは低温剛性の向上、並びに酸素ガスバリア性及
び防湿性の向上をはかるため熱処理を行ってもよい。In the case of forming a sheet for forming, a known forming method using a T-die method or the like may be employed. The obtained sheet may be subjected to a heat treatment in order to improve the low-temperature rigidity and the oxygen gas barrier property and the moisture-proof property.
【００１７】[0017]
【実施例】つぎに本発明を実施例に基づきさらに具体的
に説明する。実施例及び比較例において用いた各樹脂を
以下に示す。なお、溶融粘度はキャピログラフ１Ｃ
［(株)東洋精機製作所製］を用い、表１，２記載の各溶
融混練温度により剪断速度１２１.６sec-1で、長さ１０
ｍｍ、直径１ｍｍのキャピラリーを使用して測定を行っ
た。EXAMPLES Next, the present invention will be described more specifically based on examples. Each resin used in Examples and Comparative Examples is shown below. The melt viscosity was measured using Capillograph 1C.
Using [manufactured by Toyo Seiki Seisaku-sho, Ltd.], at a melt kneading temperature shown in Tables 1 and 2, a shear rate of 121.6 sec -1 and a length of 10 were used.
The measurement was performed using a capillary having a diameter of 1 mm and a diameter of 1 mm.
【００１８】(酸素ガスバリア性樹脂） ・ＥＶＯＨ−１（１９０℃；ρO=９０９Ｐa・s、ＭＦＲ
＝５．５）エバールＥＰ−Ｅ １０５Ａ［(株)クラレ
製］ ・ＥＶＯＨ−２（１９０℃；ρO=５７６Ｐa・s、ＭＦＲ
＝１４）エバールＥＳ−Ｇ １１０Ａ［(株)クラレ製］ (防湿性樹脂） ・ＰＰ−１（１９０℃；ρH=９１５Ｐa・s、ＭＦＲ＝２.
３）ＨＴ−６００４［チッソ(株)製］ ・ＰＰ−２（１９０℃；ρH=１７６０Ｐa・s、ＭＦＲ＝
０．５）ＳＡ５１０［日本ポリオレフィン(株)製］ ・ＨＤＰＥ（１９０℃；ρH=６７７Ｐa・s、ＭＦＲ＝５.
０）５０５０ＦＤ［日本ポリオレフィン(株)製］(Oxygen gas barrier resin) EVOH-1 (190 ° C .; ρ O = 909 Pa · s, MFR
= 5.5) EVAL EP-E 105A [manufactured by Kuraray Co., Ltd.] EVOH-2 (190 ° C .; ρ O = 576 Pa · s, MFR
= 14) EVAL ES-G 110A [manufactured by Kuraray Co., Ltd.] (moisture-proof resin) • PP-1 (190 ° C; ρ H = 915 Pa · s, MFR = 2.
3) HT-6004 [manufactured by Chisso Corporation] • PP-2 (190 ° C .; ρ H = 1760 Pa · s, MFR =
0.5) SA510 [manufactured by Nippon Polyolefin Co., Ltd.] HDPE (190 ° C .; ρ H = 677 Pa · s, MFR = 5.
0) 5050FD [manufactured by Nippon Polyolefin Co., Ltd.]
【００１９】［実施例１〜８及び比較例１〜３］各樹脂
を充分にドライブレンドした後、２軸混練機を用いて表
１，２に記載の各溶融混練温度により剪断速度１２１.
６sec-1で溶融混練し、酸素ガスバリア性樹脂組成物を
得た。[Examples 1 to 8 and Comparative Examples 1 to 3] After the respective resins were sufficiently dry-blended, the shear rate was adjusted to 121.degree. By using a twin-screw kneader at each melt-kneading temperature shown in Tables 1 and 2.
The mixture was melted and kneaded at 6 sec -1 to obtain an oxygen gas barrier resin composition.
【００２０】試料： 厚さ０.１ｍｍのＴ−ダイ押出し
シートを使用した。ただし、比較例１のＥＶＯＨは、厚
さ０．０２ｍｍフィルムを使用した。Sample: A T-die extruded sheet having a thickness of 0.1 mm was used. However, the EVOH of Comparative Example 1 used a 0.02 mm thick film.
【００２１】モルフォロジー： 酸素ガスバリア性樹脂
組成物を液体窒素で冷凍破断し、その破断面を電子顕微
鏡(ＳＥＭ）で観察し、相互侵入ポリマー網状構造を
○、海島構造を×とした。Morphology: The oxygen gas barrier resin composition was frozen and fractured with liquid nitrogen, and the fracture surface was observed by an electron microscope (SEM). The interpenetrating polymer network structure was evaluated as ○, and the sea-island structure was evaluated as ×.
【００２２】酸素ガスバリア性： 差圧検出式ガス透過
試験機［Ｍ−Ｃ３型；(株)東洋精機製作所製］を用いて
ＪＩＳ Ｋ ７１２６Ａ法（差圧法）に準拠した測定法
により、試験圧力；７６０ｍｍＨｇで、表１，２記載の
各温度、湿度条件で測定を行い酸素透過量を比較した。Oxygen gas barrier property: Using a differential pressure detection type gas permeation tester [Model M-C3; manufactured by Toyo Seiki Seisaku-sho, Ltd.], the test pressure is determined by a measurement method in accordance with JIS K 7126A method (differential pressure method). At 760 mmHg, measurements were made under the respective temperature and humidity conditions shown in Tables 1 and 2, and the amounts of oxygen permeation were compared.
【００２３】配合組成及び各測定値の結果を表１〜２に
示す。Tables 1 and 2 show the composition and the results of the measured values.
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【表２】 [Table 2]
【００２６】[0026]
【発明の効果】本発明の製造法にて得られた酸素ガスバ
リア性樹脂組成物は、酸素ガスバリア性に優れるととも
に、容易にリサイクルが可能である。また、吸湿による
酸素ガスバリア性の低下が少ないので、食品、医薬品、
電子部品等を保護する為に用いられる酸素ガスバリア性
の優れた各種包装容器の材料として好ましい。The oxygen gas barrier resin composition obtained by the production method of the present invention has excellent oxygen gas barrier properties and can be easily recycled. In addition, since there is little decrease in oxygen gas barrier properties due to moisture absorption, food, pharmaceuticals,
It is preferable as a material for various packaging containers having excellent oxygen gas barrier properties used for protecting electronic components and the like.
【図１】実施例７にて得られた樹脂組成物の断面組織を
示す電子顕微鏡写真である。FIG. 1 is an electron micrograph showing a cross-sectional structure of a resin composition obtained in Example 7.
【図２】比較例３にて得られた樹脂組成物の断面組織を
示す電子顕微鏡写真である。FIG. 2 is an electron micrograph showing a cross-sectional structure of a resin composition obtained in Comparative Example 3.
Claims (2)
２種類の樹脂を溶融混練する際の酸素ガスバリア性樹脂
の溶融粘度(ρO)に対する、防湿性樹脂樹脂の溶融粘度
(ρH)の比(ρO/ρH)が０.０５〜１.０となるような酸素
ガスバリア性樹脂組成物の製造法。1. A melt viscosity of a moisture-proof resin resin relative to a melt viscosity (ρ O ) of an oxygen gas-barrier resin when two kinds of resins, an oxygen gas barrier resin and a moisture-proof resin, are melt-kneaded.
([rho H) preparation of the ratio (ρ O / ρ H) the oxygen gas barrier resin composition such that 0.05 to 1.0 of.
に対する、防湿性樹脂樹脂の溶融粘度(ρH)の比(ρO/ρ
H)が０.０５〜１.０となる温度及び剪断速度の下に溶融
混練を行って得られた酸素ガスバリア性樹脂組成物。2. Melt viscosity (ρ O ) of oxygen gas barrier resin
To the ratio of the melt viscosity (ρ H ) of the moisture-proof resin (ρ O / ρ
An oxygen gas barrier resin composition obtained by melt-kneading at a temperature and a shear rate at which H ) is 0.05 to 1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34402096A JPH10182843A (en) | 1996-12-24 | 1996-12-24 | Oxygen gas barrier resin composition and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34402096A JPH10182843A (en) | 1996-12-24 | 1996-12-24 | Oxygen gas barrier resin composition and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10182843A true JPH10182843A (en) | 1998-07-07 |
Family
ID=18366047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34402096A Pending JPH10182843A (en) | 1996-12-24 | 1996-12-24 | Oxygen gas barrier resin composition and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10182843A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002020636A (en) * | 2000-05-01 | 2002-01-23 | Daicel Chem Ind Ltd | Thermoplastic resin composition |
| JP2012111801A (en) * | 2010-11-19 | 2012-06-14 | Nihon Tetra Pak Kk | Composition for packaging material |
-
1996
- 1996-12-24 JP JP34402096A patent/JPH10182843A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002020636A (en) * | 2000-05-01 | 2002-01-23 | Daicel Chem Ind Ltd | Thermoplastic resin composition |
| JP2012111801A (en) * | 2010-11-19 | 2012-06-14 | Nihon Tetra Pak Kk | Composition for packaging material |
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