JPH09194534A - Polyethylene resin for injection stretch blow molding - Google Patents
Polyethylene resin for injection stretch blow moldingInfo
- Publication number
- JPH09194534A JPH09194534A JP859396A JP859396A JPH09194534A JP H09194534 A JPH09194534 A JP H09194534A JP 859396 A JP859396 A JP 859396A JP 859396 A JP859396 A JP 859396A JP H09194534 A JPH09194534 A JP H09194534A
- Authority
- JP
- Japan
- Prior art keywords
- blow molding
- stretch blow
- injection stretch
- polyethylene
- ethylene
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
(57)【要約】
【課題】 衝撃強度、剛性等の一般特性のほかに、表面
光沢、表面平滑性に優れる二軸延伸成形品を成形するの
に適した射出延伸ブロー成形用ポリエチレン系樹脂を提
供する。
【解決手段】密度０．９４０〜０．９６８ｇ／ｃｍ3、
ＭＦＲ０．３〜１０ｇ／１０ｍｉｎ、流動比１５以上３
０未満であるエチレン単独重合体、エチレン・α−オレ
フィン共重合体またはこれらのブレンド物からなる射出
延伸ブロー成形用ポリエチレン系樹脂。(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a polyethylene resin for injection stretch blow molding, which is suitable for molding a biaxially stretched molded product having excellent surface gloss and surface smoothness in addition to general properties such as impact strength and rigidity. provide. SOLUTION: The density is 0.940 to 0.968 g / cm 3 ,
MFR 0.3-10g / 10min, flow ratio 15 or more 3
A polyethylene resin for injection stretch blow molding, which comprises an ethylene homopolymer having an amount of less than 0, an ethylene / α-olefin copolymer, or a blend thereof.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、射出延伸ブロー成
形に適したポリエチレン系樹脂に関するものである。さ
らに詳しくは、衝撃強度、剛性等の諸物性はもとより、
表面光沢、表面平滑性にも優れる二軸延伸成形品を射出
延伸ブロー成形するのに適したポリエチレン系樹脂に関
するものである。TECHNICAL FIELD The present invention relates to a polyethylene resin suitable for injection stretch blow molding. More specifically, in addition to physical properties such as impact strength and rigidity,
The present invention relates to a polyethylene-based resin suitable for injection stretch blow molding of a biaxially stretched molded product having excellent surface gloss and surface smoothness.
【０００２】[0002]
【従来の技術】従来二軸延伸ボトル等の二軸延伸成形品
は、塩化ビニリデン、ポリカーボネート、ポリエチレン
テレフタレート等を使用して製造されている。ポリエチ
レンは二軸延伸しない通常のボトルには多用されている
ものの、二軸延伸成形品については、従来から種々検討
はなされてきたが、実用化が困難であった。2. Description of the Related Art Conventionally, biaxially stretched molded articles such as biaxially stretched bottles have been manufactured using vinylidene chloride, polycarbonate, polyethylene terephthalate and the like. Although polyethylene is often used in ordinary bottles that are not biaxially stretched, various studies have been made on biaxially stretched molded products, but it was difficult to put it into practical use.
【０００３】最近は金型の設計技術や成形技術等の進歩
により、ポリエチレンの射出延伸ブロー成形に要求され
る有底パリソンの高温離型が可能となり、ポリエチレン
の射出延伸ブロー成形も注目されるようになった。Recently, due to advances in mold design technology and molding technology, it has become possible to perform high temperature mold release of a bottomed parison, which is required for polyethylene injection stretch blow molding, and polyethylene injection stretch blow molding is receiving attention. Became.
【０００４】ところで二軸延伸しない通常の中空成形用
グレードの高密度ポリエチレンは、中空成形品を成形す
る場合、溶融パリソンが自重で垂れ下る現象（ドローダ
ウン）による偏肉や、メルトフラクチャーによる肌荒れ
を生じ易いので、従来これを防止するためにＭＦＲ
２．０ｇ／１０ｍｉｎ以下で、かつ分子量分布の広い樹
脂が用いられてきた。しかしながら、このような樹脂を
使用した場合、成形品の表面光沢や表面平滑性が乏し
く、商品としては不十分の感があった。さらに射出延伸
ブロー成形用のポリエチレン樹脂としても最適な樹脂は
見出されてはおらず、従来の通常の中空成形用のグレー
ドが使用されるため、二軸延伸ボトルに対する世の中の
ニーズである表面光沢や表面平滑性に優れる射出延伸ブ
ロー成形品は得られていなかった。[0004] By the way, when a normal blow molding grade high-density polyethylene that is not biaxially stretched is used, when molding a blow molded product, uneven thickness due to a phenomenon (drawdown) in which the molten parison hangs down by its own weight and rough skin due to melt fracture are caused. Since it easily occurs, MFR has been used to prevent this in the past.
A resin having a wide molecular weight distribution of 2.0 g / 10 min or less has been used. However, when such a resin is used, the surface gloss and surface smoothness of the molded product are poor, and there is a feeling that the product is insufficient. Furthermore, no optimum resin has been found as a polyethylene resin for injection stretch blow molding, and conventional ordinary blow molding grades are used.Therefore, surface gloss and An injection stretch blow-molded article having excellent surface smoothness has not been obtained.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、かかる事情
に鑑み、衝撃強度、剛性等のポリエチレン樹脂に特有の
諸特性のほかに表面光沢、表面平滑性にも優れる二軸延
伸成形品を成形するのに適した射出延伸ブロー成形用ポ
リエチレン系樹脂を提供することを目的とする。SUMMARY OF THE INVENTION In view of such circumstances, the present invention forms a biaxially stretched molded article which is excellent in surface gloss and surface smoothness in addition to various characteristics unique to polyethylene resin such as impact strength and rigidity. It is an object of the present invention to provide a polyethylene resin for injection stretch blow molding which is suitable for
【０００６】[0006]
【課題を解決するための手段】本発明は、次の射出延伸
ブロー成形用ポリエチレン系樹脂である。 （１） 密度０．９４０〜０．９６８ｇ／ｃｍ3、ＭＦ
Ｒ ０．３〜１０ｇ／１０ｍｉｎ、流動比１５以上３０
未満であるエチレン単独重合体、エチレン・α−オレフ
ィン共重合体またはこれらのブレンド物を含むことを特
徴とする射出延伸ブロー成形用ポリエチレン系樹脂。 （２） 密度０．９４０〜０．９６８ｇ／ｃｍ3のエチ
レン単独重合体および／またはエチレン・α−オレフィ
ン共重合体を含む上記（１）記載の射出延伸ブロー成形
用ポリエチレン系樹脂。 （３） 密度０．９２５ｇ／ｃｍ3以下の高圧法ポリエ
チレンを５〜２５重量％含む上記（１）または（２）記
載の射出延伸ブロー成形用ポリエチレン系樹脂。The present invention is the following polyethylene resin for injection stretch blow molding. (1) Density 0.940 to 0.968 g / cm 3 , MF
R 0.3 to 10 g / 10 min, flow ratio 15 or more 30
A polyethylene-based resin for injection stretch blow molding, which comprises an ethylene homopolymer, an ethylene / α-olefin copolymer, or a blend thereof of less than 1%. (2) The polyethylene resin for injection stretch blow molding according to (1) above, which contains an ethylene homopolymer and / or an ethylene / α-olefin copolymer having a density of 0.940 to 0.968 g / cm 3 . (3) The polyethylene resin for injection stretch blow molding according to the above (1) or (2), which contains 5 to 25% by weight of high-pressure polyethylene having a density of 0.925 g / cm 3 or less.
【０００７】本発明において、ＭＦＲはＡＳＴＭ Ｄ１
２３８に準拠し、温度１９０℃、荷重２．１６ｋｇで測
定した値である。また流動比はＡＳＴＭ Ｄ１２３８に
準拠し、温度１９０℃において、荷重１１２０４ｇの時
のＭＦＲと、荷重１１２０ｇの時のＭＦＲとの比であ
る。In the present invention, MFR is ASTM D1.
According to 238, it is a value measured at a temperature of 190 ° C. and a load of 2.16 kg. The flow ratio is based on ASTM D1238, and is the ratio of MFR at a load of 11204 g and MFR at a load of 1120 g at a temperature of 190 ° C.
【０００８】本発明で使用されるポリエチレン系樹脂
は、エチレンをモノマーの主体とする重合体であり、エ
チレン単独重合体、エチレン・α−オレフィン共重合
体、エチレン単独重合体および／またはエチレン・α−
オレフィン共重合体のブレンド物などが挙げられる。The polyethylene resin used in the present invention is a polymer containing ethylene as a main component, and is an ethylene homopolymer, an ethylene / α-olefin copolymer, an ethylene homopolymer and / or an ethylene / α. −
Examples include blends of olefin copolymers.
【０００９】エチレン単独重合体としては、チーグラー
・ナッタ触媒による低圧法、フイリップス法等の中圧法
等により得られる密度０．９４０〜０．９６８ｇ／ｃｍ
3の高密度ポリエチレンが使用できる。ブレンド物とし
て用いる場合は、ブレンド物の密度等が前記範囲に入る
限り、密度０．９２５ｇ／１０ｍｉｎ以下の高圧法ポリ
エチレンを一成分として配合することができる。The ethylene homopolymer has a density of 0.940 to 0.968 g / cm 2 obtained by a low pressure method using a Ziegler-Natta catalyst, a medium pressure method such as the Phillips method, or the like.
3 high density polyethylene can be used. When used as a blend, high-pressure polyethylene having a density of 0.925 g / 10 min or less can be blended as one component as long as the density of the blend is within the above range.
【００１０】本発明で用いるエチレン・α−オレフィン
共重合体は、エチレンと炭素数３〜２０、好ましくは３
〜１２のα−オレフィンとの共重合体であり、α−オレ
フィンとしては、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、４−メチ
ルヘキセン−１、４，４−ジメチルペンテン−１、ヘプ
テン−１、オクテン−１、ノネン−１、デセン−１など
があげられ、これらは１種単独で、または２種以上を組
合わせて共重合させることができる。エチレン・α−オ
レフィン共重合体中のα−オレフィン含有量は０．１〜
２０重量％、好ましくは０．１〜１０重量％であり、密
度は０．９４０〜０．９６８のものが好ましい。The ethylene / α-olefin copolymer used in the present invention is ethylene and has 3 to 20 carbon atoms, preferably 3 carbon atoms.
To 12 are α-olefin copolymers, and α-olefins include propylene, butene-1, pentene-
1, hexene-1, 4-methylpentene-1, 4-methylhexene-1,4,4-dimethylpentene-1, heptene-1, octene-1, nonene-1, decene-1, and the like. Can be used alone or in combination of two or more. The α-olefin content in the ethylene / α-olefin copolymer is 0.1 to
It is 20% by weight, preferably 0.1 to 10% by weight, and the density is preferably 0.940 to 0.968.
【００１１】本発明の射出延伸ブロー成形用ポリエチレ
ン系樹脂は、密度が０．９４０〜０．９６８ｇ／ｃ
ｍ3、好ましくは０．９５０〜０．９６０ｇ／ｃｍ3、Ｍ
ＦＲが０．３〜１０ｇ／１０ｍｉｎ、好ましくは０．５
〜３ｇ／１０ｍｉｎ、流動比が１５以上３０未満、好ま
しくは１５〜２９、より好ましくは２０〜２９である。
これらの特性値は、１種類の樹脂を射出延伸ブロー成形
用として用いる場合は、使用する樹脂単独で満足する値
であるが、複数種の樹脂をブレンド物として使用する場
合は、ブレンド物として上記特性値を満足すればよく、
個々の成分は上記値の範囲外のものでもよい。The polyethylene resin for injection stretch blow molding of the present invention has a density of 0.940 to 0.968 g / c.
m 3 , preferably 0.950 to 0.960 g / cm 3 , M
FR is 0.3 to 10 g / 10 min, preferably 0.5
˜3 g / 10 min, the flow ratio is 15 or more and less than 30, preferably 15 to 29, more preferably 20 to 29.
When one kind of resin is used for injection stretch blow molding, these characteristic values are values which are satisfied by the resins used alone, but when a plurality of kinds of resins are used as a blended product, they are used as a blended product. It suffices if the characteristic values are satisfied,
Individual components may be outside the above range.
【００１２】このような範囲外の樹脂として、例えば前
述のように、密度０．９２５ｇ／ｃｍ3以下の高圧法ポ
リエチレンを用いることができる。この高圧法ポリエチ
レンは、エチレンの単独重合体またはエチレンと炭素数
３〜２０のα−オレフィンとの共重合体であり、１００
０〜２０００気圧、２００〜３００℃でラジカル重合し
て得られ、密度は０．９２５ｇ／ｃｍ3以下であって、
高圧法低密度ポリエチレンとも呼ばれるものである。上
記の共重合体の場合のα−オレフィンの含有量は通常
０．１〜２０重量％、好ましくは０．１〜１０重量％と
される。As the resin outside this range, for example, high-pressure polyethylene having a density of 0.925 g / cm 3 or less can be used as described above. This high-pressure polyethylene is a homopolymer of ethylene or a copolymer of ethylene and an α-olefin having 3 to 20 carbon atoms, and is 100
It is obtained by radical polymerization at 0 to 2000 atm and 200 to 300 ° C., and has a density of 0.925 g / cm 3 or less,
It is also called high pressure low density polyethylene. In the case of the above copolymer, the content of α-olefin is usually 0.1 to 20% by weight, preferably 0.1 to 10% by weight.
【００１３】本発明では射出延伸ブロー成形用樹脂とし
て用いられる単体樹脂またはブレンド物が前記密度を有
し、かつＭＦＲが０．３〜１０ｇ／１０ｍｉｎであるこ
とにより、ドローダウンが生じなくなり、かつサメ肌的
にならず、成形品の表面光沢、表面平滑性が改善され
る。In the present invention, since the single resin or blend used as the resin for injection stretch blow molding has the above density and the MFR is 0.3 to 10 g / 10 min, drawdown does not occur and the shark It does not become skin-like and the surface gloss and surface smoothness of the molded product are improved.
【００１４】また流動比が１５以上であることにより、
有底パリソンの表面にフローマークが発生せず、成形後
の成形品の表面状態が良好となり、流動比が３０未満で
あることにより成形品の表面光沢が低下せず、表面光
沢、表面平滑性に優れた成形品が得られる。Further, since the flow ratio is 15 or more,
Flow marks do not occur on the surface of the bottomed parison, the surface condition of the molded product after molding is good, and the surface gloss of the molded product does not deteriorate because the flow ratio is less than 30, surface gloss and surface smoothness It is possible to obtain excellent molded products.
【００１５】本発明において、エチレン単独重合体とエ
チレン・α−オレフィン共重合体の組成物を用いる場
合、前記特性値を満足する限り、両者の配合比は任意で
あるが、重量比で２０／８０〜８０／２０とするのが好
ましい。エチレン単独重合体同士、またはエチレン・α
−オレフィン共重合体同士の組成物の場合の配合比は、
前記特性値を満足する限り任意である。In the present invention, when a composition of ethylene homopolymer and ethylene / α-olefin copolymer is used, the compounding ratio of both is arbitrary as long as the above characteristic values are satisfied, but the weight ratio is 20 / It is preferably 80 to 80/20. Ethylene homopolymers, or ethylene / α
-The compounding ratio in the case of the composition of the olefin copolymers is
It is arbitrary as long as the above characteristic values are satisfied.
【００１６】特性値が前記範囲外の成分の配合割合は樹
脂成分全体の２５重量％以下、好ましくは１０重量％以
下が望ましい。密度０．９２５ｇ／ｃｍ3以下の高圧法
低密度ポリエチレンを配合する場合は、その配合割合は
樹脂成分全体の５〜２５重量％とするのが好ましく、こ
れにより表面光沢および表面平滑性が改善される。It is desirable that the blending ratio of the component having the characteristic value outside the above range is 25% by weight or less, preferably 10% by weight or less of the whole resin component. When a high-pressure low-density polyethylene having a density of 0.925 g / cm 3 or less is blended, the blending ratio is preferably 5 to 25% by weight of the entire resin component, which improves surface gloss and surface smoothness. It
【００１７】本発明のポリエチレン系樹脂には、本発明
の目的を損わない範囲で、その他の樹脂、耐熱安定剤、
耐候安定剤、改質剤、滑剤、着色剤、充填剤などを配合
することができる。The polyethylene-based resin of the present invention contains other resins, heat stabilizers, heat stabilizers, etc. within a range not impairing the object of the present invention.
A weather resistance stabilizer, a modifier, a lubricant, a colorant, a filler and the like can be added.
【００１８】本発明のポリエチレン系樹脂において、ブ
レンド物を用いる場合のように混合が必要な場合は、各
成分をバンバリーミキサー、ヘンシェルミキサー、押出
機等によるドライブレンド、および／またはメルトブレ
ンド等により混合することができる。In the polyethylene resin of the present invention, when mixing is required as in the case of using a blend, the components are mixed by dry blending with a Banbury mixer, a Henschel mixer, an extruder, etc., and / or melt blending. can do.
【００１９】このようにして得られる射出延伸ブロー成
形用ポリエチレン系樹脂は、射出延伸ブロー成形に適し
ており、衝撃強度、剛性等のポリエチレンの諸特性のほ
か、表面光沢、表面平滑性に優れるボトルその他の中空
成形品を製造することができる。この場合、本発明の樹
脂を用いて有底パリソンを射出成形し、この有底パリソ
ンを高温離型してそのまま二軸延伸ブロー成形し、ある
いは中間で有底パリソンを温調して二軸延伸ブロー成形
することができるが、いずれの場合もドローダウンやメ
ルトフラクチャーを生じることはない。そしてフローマ
ークやサメ肌のような表面異常がなく、表面光沢、表面
平滑性に優れた中空成形品が得られる。The polyethylene resin for injection stretch blow molding thus obtained is suitable for injection stretch blow molding, and is a bottle excellent in various properties of polyethylene such as impact strength and rigidity as well as surface gloss and surface smoothness. Other hollow molded articles can be manufactured. In this case, a bottomed parison is injection-molded using the resin of the present invention, and the bottomed parison is subjected to high temperature mold release and biaxially stretch blow-molded as it is, or the bottomed parison is temperature-controlled and biaxially stretched. Blow molding is possible, but in neither case does drawdown or melt fracture occur. Further, there is no surface abnormality such as flow marks and shark skin, and a hollow molded article having excellent surface gloss and surface smoothness can be obtained.
【００２０】[0020]
【発明の効果】本発明の射出延伸ブロー成形用ポリエチ
レン系樹脂は、特定の密度、ＭＦＲ、流動比などを有す
るため、成形の際にドローダウンやメルトフラクチャー
がなく、衝撃強度、剛性等の諸特性はもとより、表面光
沢や表面平滑性にも優れている二軸延伸ブロー成形品を
製造することができる。Since the polyethylene resin for injection stretch blow molding of the present invention has a specific density, MFR, flow ratio, etc., it has no drawdown or melt fracture during molding, and has various impact strength, rigidity, etc. It is possible to produce a biaxially stretch blow-molded product which is excellent not only in characteristics but also in surface gloss and surface smoothness.
【００２１】[0021]
【発明の実施の形態】次に、実施例および比較例により
本発明をさらに詳細に説明するが、本発明はこれらの例
によってなんら限定されるものではない。BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.
【００２２】実施例１〜４および比較例１〜３ 表１，２に示す原料樹脂について、（株）日精ＡＳＢ製
射出延伸ブロー成形機（ＡＳＢ５０ＴＨ）を用い、予備
中空成形体を縦１．８倍、横１．５倍に延伸して、目付
４３ｇ、口径５０ｍｍ、内容積５００ｍｌの円筒状ボト
ルを成形した。各例のボトルについて側壁外面の表面光
沢、表面平滑性を測定した。その結果を表２に示す。Examples 1 to 4 and Comparative Examples 1 to 3 With respect to the raw material resins shown in Tables 1 and 2, a preliminary hollow molded body was made to have a length of 1.8 by using an injection stretch blow molding machine (ASB50TH) manufactured by Nissei ASB Co., Ltd. The film was stretched to double and laterally 1.5 times to form a cylindrical bottle having a basis weight of 43 g, a diameter of 50 mm and an internal volume of 500 ml. The surface gloss and surface smoothness of the outer surface of the side wall of each of the bottles were measured. Table 2 shows the results.
【００２３】なお各例における特性値の測定方法は次の
通りである。 １）ＭＦＲ（メルトフローレート） ＡＳＴＭ Ｄ１２３８に準拠（１９０℃，荷重２．１６
ｋｇ） ２）流動比 ＡＳＴＭ Ｄ１２３８に準拠（１９０℃） （荷重１１２０４ｇにおけるＭＦＲ／荷重１１２０ｇに
おけるＭＦＲ） ３）密度 ＡＳＴＭ Ｄ１５０５に準拠 ４）表面光沢 ＡＳＴＭ Ｄ５２３に準拠 日本電色工業（株）製グロスメーター使用、入射角４５
° ５）表面平滑性（目視による） ○ 表面に平滑感があり、光沢も認められる。 △ 表面にメルトフラクチャー気味の微細なシワがあ
る。 × 表面が全体に凹凸があって肌荒れを呈し光沢もな
い。The method of measuring the characteristic value in each example is as follows. 1) MFR (melt flow rate) according to ASTM D1238 (190 ° C, load 2.16)
kg) 2) Flow ratio according to ASTM D1238 (190 ° C.) (MFR at load 11204 g / MFR at load 1120 g) 3) Density according to ASTM D1505 4) Surface gloss according to ASTM D523 Glossmeter manufactured by Nippon Denshoku Industries Co., Ltd. Use, incident angle 45
° 5) Surface smoothness (by visual inspection) ○ The surface has a smooth feeling and gloss is also recognized. △ There are fine wrinkles with a slight melt fracture on the surface. × The surface is uneven and the surface is rough and has no gloss.
【００２４】[0024]
【表１】 [Table 1]
【００２５】[0025]
【表２】 [Table 2]
【００２６】表１および表２の結果より、密度、ＭＦＲ
および流動比が前記範囲内の各実施例の成形品は表面光
沢および表面平滑性に優れるが、各特性、特に流動比が
前記範囲外の各比較例の成形品は表面光沢および表面平
滑性に劣ることがわかる。From the results of Table 1 and Table 2, the density and MFR
And the molded products of each example having a flow ratio within the above range are excellent in surface gloss and surface smoothness, but each property, particularly the molded products of each comparative example having a flow ratio outside the above range, have excellent surface gloss and surface smoothness. It turns out to be inferior.
Claims (3)
ｍ3、ＭＦＲ ０．３〜１０ｇ／１０ｍｉｎ、流動比１５
以上３０未満であるエチレン単独重合体、エチレン・α
−オレフィン共重合体またはこれらのブレンド物を含む
ことを特徴とする射出延伸ブロー成形用ポリエチレン系
樹脂。1. A density of 0.940 to 0.968 g / c
m 3 , MFR 0.3 to 10 g / 10 min, flow ratio 15
Ethylene homopolymer of 30 or more and less than 30, ethylene / α
-Polyethylene resin for injection stretch blow molding, which comprises an olefin copolymer or a blend thereof.
のエチレン単独重合体および／またはエチレン・α−オ
レフィン共重合体を含む請求項１記載の射出延伸ブロー
成形用ポリエチレン系樹脂。2. A density of 0.940 to 0.968 g / cm 3.
The polyethylene-based resin for injection stretch blow molding according to claim 1, which comprises the ethylene homopolymer and / or the ethylene / α-olefin copolymer.
ポリエチレンを５〜２５重量％含む請求項１または２記
載の射出延伸ブロー成形用ポリエチレン系樹脂。3. The polyethylene resin for injection stretch blow molding according to claim 1, which contains 5 to 25% by weight of high-pressure polyethylene having a density of 0.925 g / cm 3 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00859396A JP3543466B2 (en) | 1996-01-22 | 1996-01-22 | Biaxially stretched blow molded article and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00859396A JP3543466B2 (en) | 1996-01-22 | 1996-01-22 | Biaxially stretched blow molded article and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09194534A true JPH09194534A (en) | 1997-07-29 |
| JP3543466B2 JP3543466B2 (en) | 2004-07-14 |
Family
ID=11697288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00859396A Expired - Fee Related JP3543466B2 (en) | 1996-01-22 | 1996-01-22 | Biaxially stretched blow molded article and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3543466B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057924A1 (en) | 2009-11-10 | 2011-05-19 | Total Petrochemicals Research Feluy | Bimodal polyethylene for injection stretch blow moulding applications |
| EP2351781A1 (en) | 2010-01-28 | 2011-08-03 | Total Petrochemicals Research Feluy | Injection stretch blow moulding containers prepared with polyethylene |
| WO2011092306A1 (en) | 2010-01-28 | 2011-08-04 | Total Petrochemicals Research Feluy | Injection stretch blow moulding containers prepared with polyethylene |
| EP2366722A1 (en) | 2010-03-19 | 2011-09-21 | Total Petrochemicals Research Feluy | Bimodal polyethylene for injection stretch blow moulding applications. |
| WO2012095423A1 (en) | 2011-01-11 | 2012-07-19 | Total Petrochemicals Research Feluy | Injection stretch blow moulded articles |
| JP2013248798A (en) * | 2012-05-31 | 2013-12-12 | Yoshino Kogyosho Co Ltd | High density polyethylene resin container and method for molding the same |
-
1996
- 1996-01-22 JP JP00859396A patent/JP3543466B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057924A1 (en) | 2009-11-10 | 2011-05-19 | Total Petrochemicals Research Feluy | Bimodal polyethylene for injection stretch blow moulding applications |
| US9610723B2 (en) | 2009-11-10 | 2017-04-04 | Total Petrochemicals Research Feluy | Bimodal polyethylene for injection stretch blow moulding applications |
| EP2351781A1 (en) | 2010-01-28 | 2011-08-03 | Total Petrochemicals Research Feluy | Injection stretch blow moulding containers prepared with polyethylene |
| WO2011092306A1 (en) | 2010-01-28 | 2011-08-04 | Total Petrochemicals Research Feluy | Injection stretch blow moulding containers prepared with polyethylene |
| EP2366722A1 (en) | 2010-03-19 | 2011-09-21 | Total Petrochemicals Research Feluy | Bimodal polyethylene for injection stretch blow moulding applications. |
| WO2012095423A1 (en) | 2011-01-11 | 2012-07-19 | Total Petrochemicals Research Feluy | Injection stretch blow moulded articles |
| US9821504B2 (en) | 2011-01-11 | 2017-11-21 | Total Research & Technology Feluy | Injection stretch blow moulded articles |
| JP2013248798A (en) * | 2012-05-31 | 2013-12-12 | Yoshino Kogyosho Co Ltd | High density polyethylene resin container and method for molding the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3543466B2 (en) | 2004-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1470185B1 (en) | Preparation of machine direction oriented polyethylene films | |
| US8637607B2 (en) | Polyethylene blends and films | |
| US5635262A (en) | High molecular weight high density polyethylene with improved tear resistance | |
| US5082902A (en) | Method for reducing cycle time and improving molded part impact energy and ESCR of linear high density polyethylene using a blend of two linear polyethylenes of different densities | |
| US5153039A (en) | High density polyethylene article with oxygen barrier properties | |
| EP2746334B1 (en) | Polyethylene blend with improved ESCR | |
| JP2004517984A (en) | Polyethylene blends and films | |
| EP1889873B1 (en) | Improved transparent polypropylene composition | |
| JP2025516929A (en) | Polyethylene resin composition for biaxially oriented film | |
| EP0755970A1 (en) | Process for the extrusion of polyethylene | |
| JP3543466B2 (en) | Biaxially stretched blow molded article and method for producing the same | |
| CN100384926C (en) | Containers formed from multimodal ethylene polymers | |
| JPH11181173A (en) | Ethylene / α-olefin copolymer composition and film thereof | |
| KR101812887B1 (en) | Resin compositions of polyethylene used general purpose film and film manufactured by using the same | |
| JPH10504854A (en) | Polyketone linear low density polyethylene blend | |
| JP2001181455A (en) | Hollow molding resin composition and hollow molding container | |
| US3821332A (en) | Extra high molecular weight particle form polyethylene-polyisobutylene blend | |
| US20010031833A1 (en) | Resin composition and injection-molded article | |
| US5258463A (en) | Blends for consumer waste bags | |
| JP2649619B2 (en) | High gloss multilayer hollow container | |
| JP2003292704A (en) | Resin composition and stretched molding | |
| JPH11152379A (en) | Resin composition for blow molding | |
| JP2003253062A (en) | Polyethylene composition | |
| JPH05310241A (en) | Hollow molded body | |
| JP2000033925A (en) | Stretched polypropylene container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040106 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040316 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040329 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090416 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090416 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100416 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110416 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120416 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130416 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130416 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140416 Year of fee payment: 10 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |