JPH03237145A - Ethylene polymer composition - Google Patents
Ethylene polymer compositionInfo
- Publication number
- JPH03237145A JPH03237145A JP3254490A JP3254490A JPH03237145A JP H03237145 A JPH03237145 A JP H03237145A JP 3254490 A JP3254490 A JP 3254490A JP 3254490 A JP3254490 A JP 3254490A JP H03237145 A JPH03237145 A JP H03237145A
- Authority
- JP
- Japan
- Prior art keywords
- density
- copolymer
- melt flow
- olefin
- mfr
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 229920000573 polyethylene Polymers 0.000 title claims description 22
- 229920001577 copolymer Polymers 0.000 claims abstract description 21
- 239000004711 α-olefin Substances 0.000 claims abstract description 15
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 10
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000005977 Ethylene Substances 0.000 claims abstract description 5
- 238000010526 radical polymerization reaction Methods 0.000 claims abstract description 5
- 239000000155 melt Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 6
- 229920000089 Cyclic olefin copolymer Polymers 0.000 abstract description 5
- 238000007765 extrusion coating Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 description 16
- -1 octene-1 Chemical compound 0.000 description 16
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はエチレン重合体組成物に関する。更に詳しくは
、ヒートシール性、ホットタック性、耐熱性に優れ、更
に押出コーティングにおいてその加工性に優れたエチレ
ン重合体組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to ethylene polymer compositions. More specifically, the present invention relates to an ethylene polymer composition that has excellent heat-sealing properties, hot tack properties, and heat resistance, and is also excellent in processability in extrusion coating.
［従来の技術及び発明が解決しようとする課題］高圧法
ラジカル重合で得られる低密度ポリエチレンは、紙、不
織布、プラスチックフィルム、金属箔等に押出ラミネー
トされることはよく知られており、産業上包装材料を中
心として広く使用されている。しかしながら低密度ポリ
エチレンは水物包装のように高いヒートシール強度が要
求される分野、また優れたホットタック性が要求される
自動充填分野等には使用できず、優れた加工性を有して
いながら、その使用範囲は限られている。[Prior art and problems to be solved by the invention] It is well known that low-density polyethylene obtained by high-pressure radical polymerization can be extrusion laminated to paper, nonwoven fabric, plastic film, metal foil, etc. Widely used mainly in packaging materials. However, low-density polyethylene cannot be used in fields that require high heat-sealing strength such as water packaging, or in automatic filling fields that require excellent hot tack properties. , its scope of use is limited.
一方、ヒートシール強度、ホットタック性の優れた物と
してエチレン−α−オレフィン共重合体が知られている
が、このエチレン−α−オレフィン共重合体は溶融剪断
粘度が高く押出加工性が悪く、また溶融張力が小さい。On the other hand, ethylene-α-olefin copolymers are known to have excellent heat-sealing strength and hot tack properties, but these ethylene-α-olefin copolymers have high melt shear viscosity and poor extrusion processability. Also, the melt tension is low.
そのため押出ラミネート加工において押出機に高い負荷
がかかること、また成膜性といった観点から見るとドロ
ーダウン性は良好であるが耳部の安定性が悪いこと、ネ
ックインが大きいことが欠点として指摘されている。As a result, a high load is placed on the extruder during extrusion lamination processing, and although drawdown properties are good from the viewpoint of film formation, the stability of the edges is poor and neck-in is large, which have been pointed out as drawbacks. ing.
これらエチレン−α−オレフィン共重合体の加工性を改
良する目的で低密度ポリエチレンを添加する方法がとら
れているが、必ずしも加工性と物性のバランスのとれた
物は得られていない。In order to improve the processability of these ethylene-α-olefin copolymers, a method of adding low-density polyethylene has been adopted, but it has not always been possible to obtain a product with a good balance between processability and physical properties.
［課題を解決するための手段］
本発明者らはかかる点を考慮し、鋭意検討した結果、特
定のエチレンとα−オレフィンの共重合体と特定の低密
度ポリエチレンからなる組成物が上記の問題点を解決し
た特性を有していることが判り、本発明に到達した。[Means for Solving the Problems] The present inventors took these points into consideration and, as a result of intensive studies, found that a composition consisting of a specific copolymer of ethylene and α-olefin and a specific low-density polyethylene solved the above problems. It has been found that the present invention has characteristics that solve these problems.
即ち、本発明は、密度０．９００−０．９４０ｇ／ｃｍ
３、メルトフローレート１−３０ｇ／１０ｍｉｎである
エチレンとα−オレフィンとの共重合体６０−９０重量
％と、密度０．９１０−０．９３０ｇ／ｃｍ３、そのダ
イスエル比とメルトフローレートの関係が下記の式で示
される範囲にある高圧法ラジカル重合で得られる低密度
ポリエチレン１０−４０重量％からなるエチレン重合体
組成物に関する。That is, the present invention has a density of 0.900-0.940 g/cm
3. A copolymer of ethylene and α-olefin 60-90% by weight with a melt flow rate of 1-30 g/10 min, a density of 0.910-0.930 g/cm3, and the relationship between its die swell ratio and melt flow rate. The present invention relates to an ethylene polymer composition comprising 10 to 40% by weight of low density polyethylene obtained by high-pressure radical polymerization within the range shown by the following formula.
ＳＲ＞−０，０３×ＭＦＲ＋２．０４ ＳＲ：ダイスエル比 ＭＦＲ：メルトフローレート （ｇ／１０ｍｉｎ） 以下本発明の詳細な説明する。SR>-0,03×MFR+2.04 SR: die swell ratio MFR: Melt flow rate (g/10min) The present invention will be explained in detail below.
本発明に使用されるエチレン−α−オレフィン共重合体
（以下共重合体と略す）とはチーグラー型触媒を用いエ
チレンとα−オレフィンを共重合せしめたものであり、
α−オレフィンの例としては、ブテン−１、ペンテン−
１、ヘキセン−１，４−メチルペンテン−１、オクテン
−１、デセン−１等が挙げられ、これらの物の単独ある
いは混合物として使用される。これらのα−オレフィン
のうち炭素数６−１２のα−オレフィンを用いた物が、
ヒートシール強度、ホットタック性に優れていることか
ら特に好ましい物と言える。The ethylene-α-olefin copolymer (hereinafter abbreviated as copolymer) used in the present invention is a copolymer of ethylene and α-olefin using a Ziegler type catalyst.
Examples of α-olefins include butene-1, pentene-1,
1, hexene-1,4-methylpentene-1, octene-1, decene-1, etc., and these compounds may be used alone or as a mixture. Among these α-olefins, those using α-olefins having 6 to 12 carbon atoms are
It can be said to be particularly preferable because it has excellent heat seal strength and hot tack properties.
該共重合体の密度は０．９００−０．９４０ｇ／ｃｄの
範囲の物が好ましい。更に好ましくは０．９０５−０．
９３０ｇ／ｍである。密度が０．９００ｇ／ｄ未満であ
るとべたつき易いためラミネートされたフィルムのブロ
ッキングが起こり好ましくない。またｎ−ヘキサン等の
溶剤に対する抽出量が多くなり、食品衛生上からも好ま
しくない。密度が０．９４０ｇ／ｃｄを越えるとホット
タック性、透明性が劣るため好ましくない。The density of the copolymer is preferably in the range of 0.900-0.940 g/cd. More preferably 0.905-0.
It is 930g/m. If the density is less than 0.900 g/d, it is undesirable because it tends to be sticky and causes blocking of the laminated film. Furthermore, the amount extracted by a solvent such as n-hexane increases, which is not preferable from the viewpoint of food hygiene. If the density exceeds 0.940 g/cd, hot tack properties and transparency will be poor, which is not preferable.
該共重合体のメルトフローレート（以下ＭＦＲと略す）
は、ＪＩＳ Ｋ ６７６０に準拠して測定したもの
であるが、その値は１−３０ｇ／１０ｍ ｉ ｎの範囲
の物が好ましい。更に好ましくは３２０ｇ／１０ｍｉｎ
である。ＭＦＲがＩｇ／１０ｍｉｎ未満であると溶融剪
断粘度が高いため押出機の負荷が高くなるため好ましく
ない。またドローダウン性も悪くなるため好ましくない
。ＭＦＲが３０ｇ／１０ｍｉｎを越えると耳部の安定性
が悪いこと、ネックインが大きくなるため好ましくない
。Melt flow rate (hereinafter abbreviated as MFR) of the copolymer
is measured in accordance with JIS K 6760, and the value is preferably in the range of 1-30 g/10 min. More preferably 320g/10min
It is. If the MFR is less than Ig/10 min, the melt shear viscosity is high, which increases the load on the extruder, which is not preferable. Further, the drawdown properties are also deteriorated, which is not preferable. If the MFR exceeds 30 g/10 min, the stability of the ears will be poor and the neck-in will be large, which is not preferable.
本発明に使用される低密度ポリエチレン（以下ポリエチ
レンと略す）とは、ラジカル触媒を用い、高圧法プロセ
スで製造されるものであり、そのダイスエル比（以下Ｓ
Ｒと略す）が下記の関係式で示される物である。The low-density polyethylene (hereinafter referred to as polyethylene) used in the present invention is produced by a high-pressure process using a radical catalyst, and its die swell ratio (hereinafter referred to as S
(abbreviated as R) is represented by the following relational expression.
ＳＲ＞−０，０３×ＭＦＲ＋２．０４
ＳＲ：ダイスエル比
ＭＦＲ：メルトフローレート
（ｇ ／ １０ ｍ ｉ ｎ ）
ここでいうＳＲとは加工性を示すパラメーターの一つで
あり、２．０９５ｍの径のオリフィスから１９０℃に溶
融された樹脂を２１６０ｇの荷重で押出した時の、オリ
フィス径に対する樹脂の径の比を示したものである。SR>-0,03×MFR+2.04 SR: Die swell ratio MFR: Melt flow rate (g/10 min) SR here is one of the parameters that indicates workability, and for a diameter of 2.095 m. This figure shows the ratio of the resin diameter to the orifice diameter when resin melted at 190° C. is extruded from the orifice with a load of 2160 g.
ＳＲは重合温度、重合圧力、リアクターの形状等の反応
条件、また、製造されたポリエチレンのＭＦＨによって
決定される。加工性の点からＳＲは高い事が好ましいが
、ＳＲはＭＦＨに大きく依存し、相対的にＭＦＲが大き
くなると、ＳＲは必然的に小さくなってしまう。従って
上記の式を満足するような製造条件で製造されたＳＲの
ポリエチレンであることが好ましい。SR is determined by reaction conditions such as polymerization temperature, polymerization pressure, and reactor shape, as well as by the MFH of the produced polyethylene. From the viewpoint of processability, it is preferable that the SR be high, but the SR largely depends on the MFH, and as the MFR becomes relatively large, the SR inevitably becomes small. Therefore, it is preferable to use SR polyethylene manufactured under manufacturing conditions that satisfy the above formula.
該ポリエチレンの密度は０．９１０−
０．９３０ｇ／ｃｄの範囲が好ましい。密度が０．９１
０ｇ／１０ｄ未満であるとべったつき易いためラミネー
トされたフィルムのブロッキングが起こり好ましくない
。また０、９３０ｇ１０＋ｆを越えると低温時でのヒー
トシール強度が低いため好ましくない。The density of the polyethylene is preferably in the range of 0.910-0.930 g/cd. Density is 0.91
If it is less than 0 g/10 d, it is undesirable because it tends to become sticky and causes blocking of the laminated film. Moreover, if it exceeds 0.930g10+f, it is not preferable because the heat sealing strength at low temperatures is low.
該ポリエチレンのＭＦＲは２−２０ｇ／１０ｍｉｎの範
囲が好ましい。ＭＦＲが２ｇ／１０ｍｉｎ未満であると
ドローダウン性が悪いため好ましくない。また２０ｇ／
１０ｍｉｎを越えるとネックインが大きくなるため好ま
しくない。The MFR of the polyethylene is preferably in the range of 2-20 g/10 min. If the MFR is less than 2 g/10 min, drawdown properties will be poor, which is not preferable. Also 20g/
Exceeding 10 min is not preferable because the neck-in increases.
該共重合体と該ポリエチレンの割合は共重合体６０−９
０重合％に対しポリエチレン１０−４０重量％が好ま−
しい。共重合体の割合が６０重量％未満であるとヒート
シール性、ホットタック性が劣るため好ましくない。ま
た共重合体の割合が９０重量％を越えると加工性が悪く
なるため好ましくない。The ratio of the copolymer to the polyethylene is copolymer 60-9.
10-40% by weight of polyethylene is preferred for 0% polymerization.
Yes. If the proportion of the copolymer is less than 60% by weight, heat sealing properties and hot tack properties will be poor, which is not preferable. Further, if the proportion of the copolymer exceeds 90% by weight, processability deteriorates, which is not preferable.
本発明の組成物は共重合体ペレットとポリエチレンペレ
ットとのトライブレンドであっても良いが、押出機、ニ
ーダ−、バンバリー等で溶融混練した物の方が品質の安
定した物が得られるため好ましい。The composition of the present invention may be a tri-blend of copolymer pellets and polyethylene pellets, but it is preferable to melt-knead it using an extruder, kneader, Banbury, etc. because a product with stable quality can be obtained. .
本発明の組成物は必要に応じて酸化防止剤、耐候安定剤
、帯電防止剤、滑剤、ブロッキング防止剤等通常ポリオ
レフィンに使用される添加剤を添加してもかまわない。The composition of the present invention may contain additives commonly used in polyolefins, such as antioxidants, weathering stabilizers, antistatic agents, lubricants, and antiblocking agents, as required.
［実施例］ 以下実施例にて本発明を更に説明する。[Example] The present invention will be further explained below with reference to Examples.
実施例１
密度が０．９３２ ｇ／（ｄ、、ＭＦＲが８、Ｏｇ／１
０ｍｉｎであるエチレン−ヘキセン−１共重合体７５重
量％と、密度が０． ９１８ ｇ／ｄ、 ＭＦＲが７．
０ｇ／１０ｍｉｎ、ＳＲが２．０８である高圧法ラジカ
ル重合によって得られたポリエチレン２５重量％よりな
る組成物を、アンカーコーティング剤を使用して低密度
ポリエチレンを二軸延伸されたナイロンフィルムに積層
した積層材のポリエチレン側に成形温度２８０℃にて押
出ラミネートした。得られた積層材の厚み構成は、ナイ
ロン／ポリエチレン／組成物−１５／２５／３５（μ）
とした。Example 1 Density is 0.932 g/(d,, MFR is 8, Og/1
75% by weight of ethylene-hexene-1 copolymer with a density of 0 min and a density of 0. 918 g/d, MFR is 7.
A composition consisting of 25% by weight of polyethylene obtained by high-pressure radical polymerization at 0g/10min and an SR of 2.08 was laminated on a biaxially stretched nylon film with low-density polyethylene using an anchor coating agent. Extrusion lamination was performed on the polyethylene side of the laminate at a molding temperature of 280°C. The thickness structure of the obtained laminated material is nylon/polyethylene/composition-15/25/35 (μ)
And so.
実施例２
密度が０．９２０ｇ／ｃｄの共重合体を用いる以外は、
実施例１と同様にして積層物を得た。Example 2 Except for using a copolymer with a density of 0.920 g/cd,
A laminate was obtained in the same manner as in Example 1.
実施例３
密度が０． ９２５ ｇ／ｃＩｌ、 ＭＦＲが３．０ｇ
／１０ｍｉｎ、ＳＲが２．０２のポリエチレンを用いる
こと以外は実施例２と同様にして積層物を得た。Example 3 Density is 0. 925 g/cIl, MFR 3.0g
/10min, and a laminate was obtained in the same manner as in Example 2 except that polyethylene having an SR of 2.02 was used.
実施例５
共重合体のα−オレフィンがブテン−１であること以外
は実施例２と同様にして積層物を得た。Example 5 A laminate was obtained in the same manner as in Example 2 except that the α-olefin of the copolymer was butene-1.
比較例１
ポリエチレンとして、密度が０．９１９ｇ／０ｃｍ３、
ＭＦＲが８．Ｏｇ／ｌ ０ｍｉ ｎ、ＳＲが１．９２で
あるものを共重合体との組成物として使用すること無し
に、単独で使用すること以外は実施例１同様にして積層
物を得た。Comparative Example 1 As polyethylene, the density is 0.919g/0cm3,
MFR is 8. A laminate was obtained in the same manner as in Example 1 except that a material having an Og/l 0min and an SR of 1.92 was used alone without being used as a composition with a copolymer.
比較例２
実施例２の共重合体をポリエチレンとの組成物として使
用すること無しに、単独で使用すること以外は実施例１
同様にして積層物を得た。Comparative Example 2 Example 1 except that the copolymer of Example 2 was used alone without being used as a composition with polyethylene.
A laminate was obtained in the same manner.
実施例４
密度が０．９１２ｇ／ｃｄの共重合体を用いること以外
は実施例２と同様にして積層物を得た。Example 4 A laminate was obtained in the same manner as in Example 2 except that a copolymer having a density of 0.912 g/cd was used.
比較例３
ポリエチレンノ密度を０． ９２４ ｇ／ｃＩｌ、 Ｍ
ＦＲを３．０ｇ／１０ｍｉｎ、ＳＲを１．８６とする以
外は実施例２と同様にして積層物を得た。Comparative Example 3 Polyethylene density was 0. 924 g/cIl, M
A laminate was obtained in the same manner as in Example 2 except that the FR was 3.0 g/10 min and the SR was 1.86.
加工性の評価
実施例及び比較例で用いた組成物あるいはポリエチレン
、共重合体の加工性の結果を第１表に示した。ネックイ
ン及び耳部のふれ巾は、加工速度１００ｍ／ｍｉｎの時
の値を示した。加工条件を下記に示す。Processability Evaluation Results of the processability of the compositions, polyethylene, and copolymers used in Examples and Comparative Examples are shown in Table 1. The neck-in and selvage widths are the values at a processing speed of 100 m/min. The processing conditions are shown below.
押出機のスクリュー：９０關
スクリュー回転数 ：６０ｒｐｍ
ダイス開口長 ：６００開
樹脂温度 ＝２８０℃
［発明の効果コ
以上の説明から明らかなように本発明によりヒートシー
ル性、ホットタック性、耐熱性に優れ、更に押出コーテ
ィングにおい−Ｃその加工性に優れたエチレン重合体組
成物が得られる。Extruder screw: 90° Screw rotation speed: 60 rpm Die opening length: 600° Opening resin temperature = 280°C An ethylene polymer composition is obtained which has excellent extrusion coating properties and processability.
Claims (1)
トフローレート１−３０ｇ／１０ｍｉｎであるエチレン
とα−オレフィンとの共重合体６０−９０重量％と、密
度０．９１０−０．９３０ｇ／０ｃｍ＾３、そのダイス
エル比とメルトフローレートの関係が下記の式で示され
る範囲にある高圧法ラジカル重合で得られる低密度ポリ
エチレン１０−４０重量％からなるエチレン重合体組成
物。 ＳＲ＞−０．０３×ＭＦＲ＋２．０４ ＳＲ：ダイスエル比 ＭＦＲ：メルトフローレート （ｇ／１０ｍｉｎ）(1) 60-90% by weight copolymer of ethylene and α-olefin having a density of 0.900-0.940g/cm^3 and a melt flow rate of 1-30g/10min, and a density of 0.910-0. An ethylene polymer composition comprising 10-40% by weight of low-density polyethylene obtained by high-pressure radical polymerization in which the relationship between die swell ratio and melt flow rate is in the range shown by the following formula. SR>-0.03×MFR+2.04 SR: Die swell ratio MFR: Melt flow rate (g/10min)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3254490A JP3044557B2 (en) | 1990-02-15 | 1990-02-15 | Ethylene polymer composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3254490A JP3044557B2 (en) | 1990-02-15 | 1990-02-15 | Ethylene polymer composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03237145A true JPH03237145A (en) | 1991-10-23 |
| JP3044557B2 JP3044557B2 (en) | 2000-05-22 |
Family
ID=12361876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3254490A Expired - Lifetime JP3044557B2 (en) | 1990-02-15 | 1990-02-15 | Ethylene polymer composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3044557B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997004026A1 (en) * | 1995-07-24 | 1997-02-06 | Mitsui Petrochemical Industries, Ltd. | Ethylenic polymer composition |
| KR100404544B1 (en) * | 2000-12-23 | 2003-11-05 | 삼성종합화학주식회사 | Method for preparing resin for extrusion coating/lamination and the resin |
| JP2007504329A (en) * | 2003-09-05 | 2007-03-01 | ダウ グローバル テクノロジーズ インコーポレイティド | Improved resin composition for extrusion coating |
-
1990
- 1990-02-15 JP JP3254490A patent/JP3044557B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997004026A1 (en) * | 1995-07-24 | 1997-02-06 | Mitsui Petrochemical Industries, Ltd. | Ethylenic polymer composition |
| KR100404544B1 (en) * | 2000-12-23 | 2003-11-05 | 삼성종합화학주식회사 | Method for preparing resin for extrusion coating/lamination and the resin |
| JP2007504329A (en) * | 2003-09-05 | 2007-03-01 | ダウ グローバル テクノロジーズ インコーポレイティド | Improved resin composition for extrusion coating |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3044557B2 (en) | 2000-05-22 |
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