JPS6356259B2 - - Google Patents
Info
- Publication number
- JPS6356259B2 JPS6356259B2 JP54081521A JP8152179A JPS6356259B2 JP S6356259 B2 JPS6356259 B2 JP S6356259B2 JP 54081521 A JP54081521 A JP 54081521A JP 8152179 A JP8152179 A JP 8152179A JP S6356259 B2 JPS6356259 B2 JP S6356259B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- component
- polypropylene 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.)
- Expired
Links
- -1 polypropylene Polymers 0.000 claims description 32
- 239000004743 Polypropylene Substances 0.000 claims description 26
- 229920001155 polypropylene Polymers 0.000 claims description 26
- 229920005989 resin Polymers 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 17
- 239000011342 resin composition Substances 0.000 claims description 14
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 11
- 229920001083 polybutene Polymers 0.000 claims description 10
- 150000002978 peroxides Chemical class 0.000 claims description 9
- 239000000203 mixture Substances 0.000 description 12
- 238000002156 mixing Methods 0.000 description 8
- 235000014113 dietary fatty acids Nutrition 0.000 description 7
- 229930195729 fatty acid Natural products 0.000 description 7
- 239000000194 fatty acid Substances 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920013716 polyethylene resin Polymers 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 229920001384 propylene homopolymer Polymers 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 229920006302 stretch film Polymers 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明はポリプロピレン系樹脂組成物に関し、
さらに詳しくは特に粘着性フイルムの成形材料と
して好適なポリプロピレン系樹脂組成物に関す
る。
これまでに、包装用の粘着性フイルムの成形材
料としてはポリオレフイン樹脂、ポリオレフイン
系ゴムおよびポリブテンからなる樹脂組成物が知
られている（特開昭53−8295号公報）。
しかしながら、この樹脂組成物から得られるフ
イルムは、特にポリエチレン樹脂を用いた場合に
は、耐熱性に劣るという欠点がある。そのため、
ポリエチレン樹脂に代えてポリプロピレン樹脂を
用いることが行なわれているが、この場合耐熱性
は改善されるものの粘着性の点で満足すべきもの
ではなかつた。
本発明者らは、上記従来技術の欠点を解消すべ
く鋭意研究を重ねた結果、ポリプロピレン系樹脂
にポリオレフイン系ゴムおよびポリブテンを配合
すると共に、粘着性付与助剤を配合し、さらに必
要に応じて微量の過酸化物を配してなる樹脂組成
物を用いればポリプロピレン樹脂が本来具備して
いるすぐれた耐熱性と透明性を維持したまま、粘
着性の良好なフイルムを成形しうることを見出し
た。本発明はこの知見に基いて完成したものであ
る。
すなわち本発明は、(A)ポリプロピレン系樹脂
100重量部、(B)ポリオレフイン系ゴム３〜20重量
部、(C)ポリブテン５〜30重量部および(D)粘着性付
与助剤0.1〜10重量部からなりポリプロピレン系
樹脂組成物ならびにこれらに(E)過酸化物を前記
(A)、(B)、(C)および(D)成分の合計重量に基いて10〜
1000ppm配合してなるポリプロピレン系樹脂組成
物を提供するものである。
本発明の組成物の(A)成分であるポリプロピレン
系樹脂は、該組成物の基材として用いるものであ
り、他の(B)、(C)、(D)および(E)成分に比べて多量に
配合するのが一般である。また、ここで用いるこ
とのできるポリプロピレン系樹脂の種類は特に制
限はなく、プロピレンホモポリマーはもちろんエ
チレン等とプロピレンのコポリマーであつてもよ
い。プロピレンホモポリマーとしてはアイソタク
チツクポリプロピレン、シンジオタクチツクポリ
プロピレン、アタクチツクポリプロピレンをあげ
ることができるが、フイルム成形するにはアイソ
タクチツクポリプロピレンが好ましい。さらにプ
ロピレンとエチレン等他成分とのコポリマーはラ
ンダムコポリマー、ブロツクコポリマーのいずれ
であつてもよい。なお、この(A)成分であるポリプ
ロピレン系樹脂の物性は各種用途、条件等に応じ
て適宜選定すればよいが、通常はメルトインデツ
クス（MI）0.5〜10、密度(d)0.90〜0.91のものが
好ましい。
次に本発明の組成物の(B)成分であるポリオレフ
イン系ゴムはブリード促進剤として作用し、(C)成
分であるポリブテンとの組み合せによりすぐれた
粘着性を発揮する。また、このポリオレフイン系
ゴムはポリプロピレン系樹脂との相溶性がよくし
かもポリプロピレン系樹脂の透明性を損なうこと
なく、さらに衛生上何ら支障のないものであり、
他の種類のゴムに比べて極めて好都合である。こ
の(B)成分の配合量は通常は(A)成分であるポリプロ
ピレン系樹脂100重量部に対し３〜20重量部、好
ましくは3010重量部とすべきである。配合量が20
重量部を超えるとフイルム成形性と耐熱性が低下
する。また、ここで用いることのできるポリオレ
フイン系ゴムとしては、各種のものを考えること
ができ、例えばエチレン−プロピレンゴム、エチ
レン−ブテン−１ゴムなどをあげることができ
る。
続いて本発明の組成物の(C)成分であるポリブテ
ンは増粘剤として作用し、また前述した如く(B)成
分であるポリオレフイン系ゴムとの組み合せによ
り組成物にすぐれた粘着性を付与する。このポリ
ブテンの配合量は、通常は(A)成分であるポリプロ
ピレン系樹脂100重量部に対して５〜30重量部、
好ましくは12〜20重量部とすべきである。配合量
が５重量部を下廻ると充分な粘着性を示さず、逆
に30重量部を超えると多量のブリードによるベト
つきが生じ、また耐熱性や成形性が低下するので
好ましくない。なおここで用いるポリブテンの物
性は配合量、他成分の種類、目的とする組成物の
用途等に応じて変わり、一義的に定めることはで
きないが、通常は分子量350〜2400の範囲のもの
が好ましい。
さらに、本発明の組成物の(D)成分である粘着性
付与助剤は、目的とする組成物から成形したフイ
ルム等に、圧着することなく容易に対象物に密着
するような物性を付与する作用を示すものであ
る。この粘着性付与助剤の配合量は通常は(A)成分
であるポリプロピレン系樹脂100重量部に対して
0.1〜10重量部、好ましくは0.3〜1.0重量部とすべ
きである。配合量が0.1重量部未満では粘着性付
与の効果が充分でなく、また10重量部を超えると
目的とする組成物を成形して得られるフイルムの
ベトつきや著しい滑りが生じ、作業性を低下させ
ることとなる。なお、ここで用いることのできる
粘着性付与助剤としては、様々なものが考えられ
るが、例えばグリコールや多価アルコールの脂肪
酸エステルあるいは脂肪酸、脂肪酸アミド、脂肪
酸アミン、アルキルフエノールにエチレンオキシ
ドやプロピレンオキシドを付加したポリグリコー
ルエステルまたはポリグリコールエーテルなどを
あげることができる。さらに好ましいものとして
は食品添加物として使用しうるソルビタン脂肪酸
エステル、プロピレングリコール脂肪酸エステ
ル、グリセリン脂肪酸エステルなどがある。
本発明の組成物には必要に応じてさらに(E)成分
として過酸化物を配合することができる。過酸化
物としてはα，α′−ビス（ｔ−ブチルパーオキシ
ジイソプロピル）ベンゼンあるいはジ−ｔ−ブチ
ルパーオキシドなどの過酸化物が用いられ、これ
を配合することによつて低温押出成形時の透明性
の回復、メルトインデツクスの調節による形成性
の回復、成形フイルムの強度増加および耐熱性の
一層の向上を図ることができる。この(E)成分であ
る過酸化物は前述の如く必ずしも配合することを
要しないが、配合する場合には、上記(A)、(B)、(C)
および(D)成分の合計重量に対して10〜1000ppm好
ましくは30〜500ppmの割合で配合するべきであ
る。特にこの過酸化物は(A)成分としてメルトイン
デツクスの小さいポリプロピレン系樹脂を使用す
るときや低温押出成形時にはやや多めに使用すべ
きである。なお、配合量が1000ppmを超えるよう
な不必要な添加は、成形性を著しく阻害し、ゲル
発生を招くことがある。
本発明の組成物は上述の(A)、(B)、(C)および(D)成
分ならびに必要に応じて(E)成分を加えて充分に混
合することによつて製造する。この際の混合は通
常の方法でよく、例えばドライブレンドあるいは
ドライブレンド後バンバリーミキサーまたはペレ
タイザー等でペレツト化するなどの方法が考えら
れる。
かくして得られた本発明の樹脂組成物からフイ
ルムを成形するにあたつては、通常のインフレー
シヨン装置、Ｔダイ装置等のフイルム成形装置が
使用できるが、フイルムの透明性を向上させるた
めには押出し後急冷することが好ましい。
叙上の如く、本発明の樹脂組成物はフイルム成
形に適しており、成形されるフイルムは耐熱性、
粘着性にすぐれ、また良好な透明性、防曇性を有
する。さらに、このフイルムはポリエチレン基材
に比して衝撃強度等の物理的強度が向上し、かつ
ブリード促進、異方性の解消ならびに低温耐衝撃
性の向上等様々な点において改善されている。
従つて、本発明の樹脂組成物は包装資材、特に
家庭用ラツプフイルム、業務用ストレツチフイル
ム等の成形材料として好適に使用することができ
る。
次に本発明の実施例を示す。
実施例、比較例および参考例
(A)成分として所定のアイソタクチツクポリプロ
ピレン系樹脂、(B)成分として所定のポリオレフイ
ン系ゴム、(C)成分としてポリブテン、(D)成分とし
て所定の粘着性付与助剤および(E)成分として所定
の過酸化物をそれぞれ所定量ブレンダーにて混合
した後、直径50mmのペレタイザーを用いて220℃
の押出条件にてペレツト化して樹脂組成物を製造
した。
得られた樹脂組成物を用いて直径50mmの押出機
の水冷式インフレーシヨン装置にて、220℃の押
出条件で厚さ12μのフイルムを成形した。このと
きの条件と結果を表に示す。
なお、表には(D)成分および(E)成分を配合せずに
製造した樹脂組成物からの成形フイルムの性質を
比較例として、また(A)成分としてポリエチレン樹
脂を用いた場合の結果を参考例として示す。
The present invention relates to a polypropylene resin composition,
More specifically, the present invention relates to a polypropylene resin composition particularly suitable as a molding material for adhesive films. Hitherto, resin compositions consisting of polyolefin resin, polyolefin rubber, and polybutene have been known as molding materials for adhesive films for packaging (Japanese Patent Application Laid-open No. 8295/1983). However, the film obtained from this resin composition has a drawback of poor heat resistance, especially when polyethylene resin is used. Therefore,
Polypropylene resin has been used in place of polyethylene resin, but although the heat resistance is improved in this case, the adhesiveness is not satisfactory. As a result of extensive research in order to eliminate the drawbacks of the above-mentioned conventional techniques, the present inventors have blended polyolefin rubber and polybutene into polypropylene resin, blended a tackifying agent, and added a tackifier to the polypropylene resin. We have discovered that by using a resin composition containing a small amount of peroxide, it is possible to form a film with good adhesiveness while maintaining the excellent heat resistance and transparency inherent in polypropylene resin. . The present invention was completed based on this knowledge. That is, the present invention provides (A) polypropylene resin
(B) 3 to 20 parts by weight of polyolefin rubber, (C) 5 to 30 parts by weight of polybutene, and (D) 0.1 to 10 parts by weight of tackifier. E) peroxide
Based on the total weight of ingredients (A), (B), (C) and (D)
The present invention provides a polypropylene resin composition containing 1000 ppm. The polypropylene resin that is component (A) of the composition of the present invention is used as a base material of the composition, and is Generally, a large amount is blended. The type of polypropylene resin that can be used here is not particularly limited, and may be a propylene homopolymer or a copolymer of ethylene or the like and propylene. Examples of the propylene homopolymer include isotactic polypropylene, syndiotactic polypropylene, and atactic polypropylene, and isotactic polypropylene is preferred for film molding. Further, the copolymer of propylene and other components such as ethylene may be either a random copolymer or a block copolymer. The physical properties of the polypropylene resin, which is component (A), may be selected appropriately depending on the various uses and conditions, but it is usually a material with a melt index (MI) of 0.5 to 10 and a density (d) of 0.90 to 0.91. Preferably. Next, the polyolefin rubber which is the component (B) of the composition of the present invention acts as a bleed accelerator, and exhibits excellent adhesiveness in combination with the polybutene which is the component (C). In addition, this polyolefin rubber has good compatibility with polypropylene resin, does not impair the transparency of polypropylene resin, and does not pose any sanitary problems.
Extremely advantageous compared to other types of rubber. The amount of component (B) to be blended is usually 3 to 20 parts by weight, preferably 3010 parts by weight, per 100 parts by weight of the polypropylene resin that is component (A). The amount is 20
If the amount exceeds 1 part by weight, the film formability and heat resistance will deteriorate. Moreover, various types of polyolefin rubber can be considered as the polyolefin rubber that can be used here, such as ethylene-propylene rubber, ethylene-butene-1 rubber, and the like. Next, the polybutene, which is the component (C) of the composition of the present invention, acts as a thickener, and as described above, in combination with the polyolefin rubber, which is the component (B), it imparts excellent tackiness to the composition. . The blending amount of this polybutene is usually 5 to 30 parts by weight per 100 parts by weight of the polypropylene resin as component (A).
Preferably it should be between 12 and 20 parts by weight. If the amount is less than 5 parts by weight, sufficient tackiness will not be exhibited, and if it exceeds 30 parts by weight, stickiness will occur due to a large amount of bleeding, and heat resistance and moldability will deteriorate, which is undesirable. The physical properties of the polybutene used here vary depending on the amount blended, the types of other components, the intended use of the composition, etc., and cannot be unambiguously determined, but it is usually preferable to have a molecular weight in the range of 350 to 2400. . Furthermore, the tackifier, which is component (D) of the composition of the present invention, imparts physical properties to the film etc. formed from the intended composition so that it can easily adhere to the object without pressure bonding. It shows the effect. The amount of this tackifier is usually based on 100 parts by weight of the polypropylene resin (A).
It should be between 0.1 and 10 parts by weight, preferably between 0.3 and 1.0 parts by weight. If the amount is less than 0.1 parts by weight, the tackifying effect will not be sufficient, and if it exceeds 10 parts by weight, the film obtained by molding the desired composition will become sticky and slip significantly, reducing workability. It will be necessary to do so. Various tackifiers can be used as tackifiers, such as fatty acid esters of glycols and polyhydric alcohols, fatty acids, fatty acid amides, fatty acid amines, alkylphenols, and ethylene oxide or propylene oxide. Examples include added polyglycol esters or polyglycol ethers. More preferred examples include sorbitan fatty acid ester, propylene glycol fatty acid ester, and glycerin fatty acid ester, which can be used as food additives. The composition of the present invention may further contain a peroxide as component (E), if necessary. Peroxides such as α,α'-bis(t-butylperoxydiisopropyl)benzene or di-t-butylperoxide are used as peroxides, and by blending them, the It is possible to restore transparency, restore formability by adjusting the melt index, and further improve the strength and heat resistance of the formed film. This (E) component, peroxide, does not necessarily need to be blended as mentioned above, but if it is blended, it is necessary to combine the above (A), (B), and (C)
It should be blended in a proportion of 10 to 1000 ppm, preferably 30 to 500 ppm, based on the total weight of component (D). In particular, this peroxide should be used in a slightly larger amount when a polypropylene resin with a small melt index is used as component (A) or during low-temperature extrusion molding. Incidentally, unnecessary addition of more than 1000 ppm may significantly impede moldability and cause gel formation. The composition of the present invention is produced by adding the above-mentioned components (A), (B), (C), and (D), and optionally component (E), and mixing thoroughly. Mixing at this time may be carried out by a conventional method, such as dry blending or dry blending followed by pelletizing with a Banbury mixer or pelletizer. In forming a film from the thus obtained resin composition of the present invention, a normal film forming apparatus such as an inflation apparatus or a T-die apparatus can be used, but in order to improve the transparency of the film, is preferably rapidly cooled after extrusion. As mentioned above, the resin composition of the present invention is suitable for film molding, and the molded film has heat resistance,
It has excellent adhesiveness, good transparency and anti-fog properties. Furthermore, this film has improved physical strength such as impact strength as compared to the polyethylene base material, and is also improved in various aspects such as promoting bleeding, eliminating anisotropy, and improving low-temperature impact resistance. Therefore, the resin composition of the present invention can be suitably used as a packaging material, particularly as a molding material for household wrap films, commercial stretch films, and the like. Next, examples of the present invention will be shown. Examples, Comparative Examples, and Reference Examples Predetermined isotactic polypropylene resin as component (A), specified polyolefin rubber as component (B), polybutene as component (C), and specified tackification as component (D) After mixing specified amounts of the specified peroxides as the auxiliary agent and component (E) in a blender, the mixture was heated at 220°C using a pelletizer with a diameter of 50 mm.
A resin composition was produced by pelletizing under the following extrusion conditions. Using the obtained resin composition, a film with a thickness of 12 μm was molded using a water-cooled inflation device of an extruder with a diameter of 50 mm under extrusion conditions of 220° C. The conditions and results at this time are shown in the table. In addition, the table shows the properties of a molded film made from a resin composition produced without blending the (D) and (E) components as a comparative example, and the results when polyethylene resin was used as the (A) component. Shown as a reference example.
【表】【table】
Claims (1)
オレフイン系ゴム３〜20重量部、(C)ポリブテン５
〜30重量部および(D)粘着性付与助剤0.1〜10重量
部からなるポリプロピレン系樹脂組成物。 ２ (A)ポリプロピレン系樹脂100重量部、(B)ポリ
オレフイン系ゴム３〜20重量部、(C)ポリブテン５
〜30重量部、(D)粘着性付与助剤0.1〜10重量部お
よび(E)過酸化物を前記(A)、(B)、(C)および(D)成分の
合計重量に対して10〜1000ppm配合してなるポリ
プロピレン系樹脂組成物。[Claims] 1 (A) 100 parts by weight of polypropylene resin, (B) 3 to 20 parts by weight of polyolefin rubber, (C) 5 parts by weight of polybutene
A polypropylene resin composition comprising ~30 parts by weight and (D) 0.1 to 10 parts by weight of a tackifier. 2 (A) 100 parts by weight of polypropylene resin, (B) 3 to 20 parts by weight of polyolefin rubber, (C) 5 parts by weight of polybutene
~30 parts by weight, (D) 0.1 to 10 parts by weight of tackifier and (E) peroxide, based on the total weight of components (A), (B), (C) and (D). A polypropylene resin composition containing ~1000ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8152179A JPS565842A (en) | 1979-06-29 | 1979-06-29 | Polypropylene-based resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8152179A JPS565842A (en) | 1979-06-29 | 1979-06-29 | Polypropylene-based resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS565842A JPS565842A (en) | 1981-01-21 |
| JPS6356259B2 true JPS6356259B2 (en) | 1988-11-07 |
Family
ID=13748635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8152179A Granted JPS565842A (en) | 1979-06-29 | 1979-06-29 | Polypropylene-based resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS565842A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046238A (en) * | 2000-05-26 | 2002-02-12 | Asahi Kasei Corp | Polypropylene multilayered film |
| JP2003019778A (en) * | 2001-07-09 | 2003-01-21 | Asahi Kasei Corp | Polypropylene multilayer lap film |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59501217A (en) * | 1982-07-26 | 1984-07-12 | ザ ダウ ケミカル カンパニ− | Olefin polymer barrier film and its usage |
| JP2513459B2 (en) * | 1985-08-20 | 1996-07-03 | 豊田合成 株式会社 | Polypropylene resin composition |
| JP3015967B2 (en) * | 1989-10-02 | 2000-03-06 | 旭化成工業株式会社 | Multilayer packaging film and method for producing the same |
| KR100260990B1 (en) * | 1997-03-25 | 2000-07-01 | 고다마 순이치로 | Resin composition and pressure-sensitive adhesive film made therefrom |
| EP1207120A3 (en) * | 2000-11-08 | 2003-07-02 | Oji Paper Co., Ltd. | Wrap film |
| WO2004029149A1 (en) * | 2002-09-27 | 2004-04-08 | Ferro Corporation | Impact modified thermoplastic olefin compositions |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130844A (en) * | 1974-07-09 | 1976-03-16 | Exxon Research Engineering Co | Jikoshiiruseino fuirumu |
| JPS538295A (en) * | 1976-07-12 | 1978-01-25 | Nippon Petrochemicals Co Ltd | Packing film |
-
1979
- 1979-06-29 JP JP8152179A patent/JPS565842A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130844A (en) * | 1974-07-09 | 1976-03-16 | Exxon Research Engineering Co | Jikoshiiruseino fuirumu |
| JPS538295A (en) * | 1976-07-12 | 1978-01-25 | Nippon Petrochemicals Co Ltd | Packing film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046238A (en) * | 2000-05-26 | 2002-02-12 | Asahi Kasei Corp | Polypropylene multilayered film |
| JP2003019778A (en) * | 2001-07-09 | 2003-01-21 | Asahi Kasei Corp | Polypropylene multilayer lap film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS565842A (en) | 1981-01-21 |
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