JPH02252777A - Pressure-sensitive adhesive tape or sheet - Google Patents
Pressure-sensitive adhesive tape or sheetInfo
- Publication number
- JPH02252777A JPH02252777A JP7615589A JP7615589A JPH02252777A JP H02252777 A JPH02252777 A JP H02252777A JP 7615589 A JP7615589 A JP 7615589A JP 7615589 A JP7615589 A JP 7615589A JP H02252777 A JPH02252777 A JP H02252777A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- sheet
- adhesive
- pressure
- sensitive adhesive
- 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
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title abstract description 5
- 239000010410 layer Substances 0.000 claims abstract description 31
- 239000012790 adhesive layer Substances 0.000 claims abstract description 17
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000002390 adhesive tape Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 6
- -1 polyethylene Polymers 0.000 abstract description 4
- 239000004698 Polyethylene Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 229920000573 polyethylene Polymers 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000003578 releasing effect Effects 0.000 abstract 2
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical class C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 abstract 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 abstract 1
- 239000000463 material Substances 0.000 description 18
- 230000001070 adhesive effect Effects 0.000 description 16
- 239000000853 adhesive Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 206010040844 Skin exfoliation Diseases 0.000 description 11
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920002633 Kraton (polymer) Polymers 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- IULGYNXPKZHCIA-UHFFFAOYSA-N octadecyl carbamate Chemical compound CCCCCCCCCCCCCCCCCCOC(N)=O IULGYNXPKZHCIA-UHFFFAOYSA-N 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920005548 perfluoropolymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920006132 styrene block copolymer Polymers 0.000 description 1
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ポリオレフィン系樹脂からなる基材上に、粘
着性層が形成されてなる粘着テープもしくはシートに関
する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an adhesive tape or sheet in which an adhesive layer is formed on a base material made of a polyolefin resin.
（従来の技術）
従来、ポリオレフィン系樹脂からなる基材上に粘着剤層
を形成した粘着テープもしくはシートは、公知であり、
かかる粘着テープもしくはシートの製品形態としては、
コイル状に巻上げて巻重体とするか或いは定尺物を何段
にも積重ねて積重体するのが通常である。そしてその何
れの場合に於いても、上段のものの粘着剤層と下段のも
のの基材背面とが密着することとなり、このままでは使
用時、巻戻したり、引剥がしたりするのに難渋するので
、基材背面には所謂剥離処理が施される。そして、この
剥離処理は、一つには基材背面に予め剥離剤を塗布する
方法が汎用されており、該剥離剤としては、長鎖アルキ
ル基含有ポリマー（例えばポリビニルステアリルカルバ
メート）、シリコーン系ポリマーパーフロロ系ポリマー
等が挙げられる。(Prior Art) Adhesive tapes or sheets in which an adhesive layer is formed on a base material made of a polyolefin resin are conventionally known.
The product form of such adhesive tape or sheet is as follows:
Usually, it is wound up into a coil to form a rolled body, or it is stacked by stacking pieces of standard length in several stages. In either case, the adhesive layer on the upper layer and the back of the base material on the lower layer will come into close contact with each other, making it difficult to unwind or peel off the adhesive layer during use. A so-called peeling process is performed on the back side of the material. One commonly used method for this peeling treatment is to apply a release agent to the back surface of the substrate in advance, and the release agents include long-chain alkyl group-containing polymers (e.g. polyvinyl stearyl carbamate), silicone polymers, etc. Examples include perfluoro polymers.
（発明が解決しようとする課題）
しかしながら、これらの剥離剤は、材料費が嵩む因とな
り、煩雑な塗布工程を必要とするので、生産費も嵩み、
更には製品とした後に於いても、かかる剥離剤が粘着剤
層に移行して、該粘着剤層の粘着力が低下する因になる
という晶質重の問題も孕む方法であった。(Problems to be Solved by the Invention) However, these release agents increase material costs and require a complicated application process, which increases production costs.
Furthermore, even after the product is manufactured, the release agent migrates to the adhesive layer, resulting in a problem of crystalline weight, which causes a decrease in the adhesive strength of the adhesive layer.
一方、近時提案された特開昭６１−１０３９７５号公報
記載の技術は、基材層と粘着剤層とを共押出法により同
時に成形積層する点で工程の簡略化や基材、粘着剤両層
の密着性が改善され、品質面でも優れた技術として注目
されるものの一つであるが、基材背面にはやはり剥離処
理を施す必要があり、然もこの場合、予め基材背面に剥
離処理を施すことは出来ず、処理のタイミングに制約が
ある点だけ、より問題点が深刻化するのである。On the other hand, the recently proposed technology described in JP-A No. 61-103975 simplifies the process by molding and laminating the base material layer and the adhesive layer at the same time by co-extrusion, and This is one of the technologies that is attracting attention as an excellent technology in terms of quality as it improves the adhesion of the layer, but it is still necessary to perform a peeling treatment on the back side of the base material, and in this case, it is necessary to apply peeling treatment to the back side of the base material in advance. The problem becomes even more serious because it cannot be processed and there are restrictions on the timing of processing.
本発明は、畝上の如き従来技術の欠点を解消し、簡単な
手段と工程で剥離処理を施すことが出来、長期に亘って
その剥離性を維持することが出来ると共に、品質面にも
悪影響を及ぼすことのない粘着テープもしくはシートを
提供することを目的としてなされたものである。The present invention eliminates the drawbacks of the conventional technology such as ridges, allows peeling treatment to be performed using simple means and processes, maintains the peelability over a long period of time, and does not adversely affect quality. The purpose of this invention is to provide an adhesive tape or sheet that does not cause harmful effects.
（課題を解決するための手段）
本発明の１の要旨は、ポリオレフィン系樹脂からなる基
材層と、粘着性層とが積層され、基材層の背面が、固体
により摩擦処理されてなることを特徴とする粘着テープ
もしくはシートであり、本発明の２の要旨は、ポリオレ
フィン系樹脂からなる基材層と、中間層と、粘着性層と
がこの順に積層され、基材層の背面が、固体により摩擦
処理されてなることを特徴とする粘着テープもしくはシ
ートである。(Means for Solving the Problems) A first aspect of the present invention is that a base layer made of a polyolefin resin and an adhesive layer are laminated, and the back surface of the base layer is friction-treated with a solid. The second aspect of the present invention is that a base layer made of a polyolefin resin, an intermediate layer, and an adhesive layer are laminated in this order, and the back surface of the base layer is This is an adhesive tape or sheet characterized by being subjected to a friction treatment with a solid material.
本発明に於いて、基材層を形成するポリオレフィン系樹
脂としては、ポリエチレン、ポリプロピレン及びこれら
の混合物又はエチレン酢酸ビニル共重合体、エチレン−
メチルメタクリレート共重合体等の如き共重合体等が挙
げられる。In the present invention, the polyolefin resin forming the base layer includes polyethylene, polypropylene, mixtures thereof, ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer,
Examples include copolymers such as methyl methacrylate copolymers.
又、上記ポリオレフィン系樹脂からなるテープもしくは
シートは、−軸もしくは多軸に延伸されていてもよい。Further, the tape or sheet made of the above-mentioned polyolefin resin may be stretched in the -axis or multiaxis.
本発明に於いて、粘着性層は粘着性を存する層であって
、粘着剤もしくは粘着性を有する接着剤で形成される。In the present invention, the adhesive layer is a layer having adhesive properties, and is formed of an adhesive or an adhesive having adhesive properties.
この粘着剤もしくは接着剤としては、従来から粘着剤と
して知られているゴム系、アクリル系、ウレタン系粘着
剤やエチレン・酢酸ビニル共重合体系の接着剤等が使用
出来る。As this pressure-sensitive adhesive or adhesive, rubber-based, acrylic-based, or urethane-based adhesives, ethylene-vinyl acetate copolymer-based adhesives, etc., which are conventionally known as adhesives, can be used.
本発明に於いて、基材層と粘着性層との間に中間層を設
けてもよ（、中間層の材料としては、従来粘着テープも
しくはシートの基材として用いられているクラフト紙、
布、合成樹脂が好適に使用出来る。In the present invention, an intermediate layer may be provided between the base layer and the adhesive layer (the intermediate layer may be made of kraft paper, which is conventionally used as a base material for adhesive tapes or sheets,
Cloth and synthetic resin can be suitably used.
本発明に於いて、摩擦に使用される固体としては、金属
ロール等の回転物であっても、ガーゼ等の布であっても
よく、又その摩擦の方向もシートの長手方向に平行又は
垂直の何れであってもよい。In the present invention, the solid used for friction may be a rotating object such as a metal roll, or a cloth such as gauze, and the direction of the friction may be parallel or perpendicular to the longitudinal direction of the sheet. It may be any of the following.
本発明に於いて、基材層の背面に摩擦処理を施すと、該
背面に剥離効果が与えられる理由については、次のよう
に考えられる。In the present invention, the reason why a peeling effect is imparted to the back surface when the back surface of the base layer is subjected to the friction treatment is considered to be as follows.
通常、基材層の製造は、ポリオレフィン系樹脂を材料と
し、押出機を用い、インフレーション法又はＴダイ法で
押出成形することによってなされるが、このとき、チュ
ーブ状又はフィルム状に押出された熔融樹脂が冷却され
る過程で結晶が生成し、この結晶の為に基材の表面に極
微の凹凸が形成される。この凹凸が摩擦処理時に与えら
れる擦過力によって平滑になり、剥離効果が具現するの
である。この凹凸状態のまま、特に他の剥離処理を施さ
ずして巻重体或いは積層体とした際に、基材背面と粘着
性層とが密着した場合、粘着性層を形成する粘（接）着
剤が凹部に減り込み、粘（接）着面積が増大して粘（接
）着力が亢進すると共に凹部が投錨効果を与えることに
もなり、剥離力が増大するのである。このことは、本発
明の摩擦処理を施した背面を有する基材表面と１、摩擦
処理をしない基材表面とを表面走査顕微鏡によって観察
すると理解される。即ち、前者にあっては極微小な凹凸
は殆ど認められず、非常に平滑な表面が形成されている
のに対して、後者の場合には数十μ前後の球晶や数μ以
下のフィブリル状の結晶が無数に生成しており、これに
よって微細な凹凸が形成されているのである。Usually, the base material layer is manufactured by extrusion molding a polyolefin resin material using an extruder using an inflation method or a T-die method. Crystals are generated in the process of cooling the resin, and these crystals form microscopic irregularities on the surface of the base material. These irregularities are smoothed by the abrasion force applied during the friction treatment, and a peeling effect is realized. If the back surface of the base material and the adhesive layer are in close contact with each other when the uneven state is made into a roll or laminate without any other peeling treatment, the adhesive that forms the adhesive layer may The agent is reduced into the recesses, increasing the adhesive (adhesion) area and increasing the adhesive (adhesion) force, and the recesses also provide an anchoring effect, increasing the peeling force. This can be understood by observing the surface of the base material having the back surface subjected to the friction treatment of the present invention and the surface of the base material without the friction treatment using a surface scanning microscope. In other words, in the former case, there are almost no microscopic irregularities and a very smooth surface is formed, whereas in the latter case, there are spherulites around several tens of microns and fibrils of several microns or less. Innumerable crystals are formed, forming microscopic irregularities.
（作用）
本発明粘着テープもしくはシートに於いては、ポリオレ
フィン系樹脂からなる基材層と、粘着性層とが積層され
、基材層の背面が、固体により摩擦処理されてなること
により、押出成形後の冷却過程で、ポリオレフィン系樹
脂シートの表面に生成する数十μ径の球晶や数μ以下の
フィブリル状の結晶により形成されている微小な凹凸が
平滑化される。(Function) In the adhesive tape or sheet of the present invention, a base layer made of a polyolefin resin and an adhesive layer are laminated, and the back surface of the base layer is friction-treated with a solid, so that extrusion is possible. In the cooling process after molding, minute irregularities formed on the surface of the polyolefin resin sheet by spherulites with a diameter of several tens of microns and fibrillar crystals with a diameter of several microns or less are smoothed.
（実施例）
以下、本発明の実施例を具体的に説明するが、本発明は
実施例に限定されるものではない。(Examples) Hereinafter, examples of the present invention will be specifically described, but the present invention is not limited to the examples.
実施例１
インフレーション法で成形された厚み６０μのポリエチ
レン（商品名「ネオゼックス３５１０ＦＪ三井石油化学
工業社製）製シートの一面に、スチレン−ブタジェン−
スチレンブロック共重合体の水素添加物（商品名［クレ
イトン０１６５７Ｊシ工ル化学社製）１００重量部と粘
着性付与樹脂（商品名「アルコンＰ１００ Ｊ荒用化学
社製）４０重量部との混合物をトルエンにて均一溶液（
固形分濃度４０％）とした粘着剤溶液を、固形分厚みが
１０μとなるよう塗布乾燥し、引続き第１図に示すよう
に塗布面と反対側の表面（背面）１をガーゼ２を巻付け
た逆方向回転ロール３にて摩擦し、ピンチローラ−４を
経て内径３インチの紙管に巻取り（図示せず）、巻重体
とした。Example 1 Styrene-butadiene-
A mixture of 100 parts by weight of a hydrogenated styrene block copolymer (trade name: Kraton 01657J manufactured by Shikuru Kagaku Co., Ltd.) and 40 parts by weight of a tackifier resin (trade name: Alcon P100 J manufactured by Arayo Kagaku Co., Ltd.). Homogeneous solution in toluene (
Apply and dry an adhesive solution with a solid content concentration of 40% to a solid content thickness of 10μ, and then wrap gauze 2 around the surface (back) 1 opposite to the coated surface as shown in Figure 1. The material was rubbed by a reverse rotating roll 3, passed through a pinch roller 4, and wound into a paper tube having an inner diameter of 3 inches (not shown) to form a roll.
実施例２
実施例１と同様のポリエチレンと実施例１と同様の粘着
剤成分（溶剤は使用せず）とを用い、両者をＴダイ法で
、共押出したこと以外は実施例１と同様にして巻重体と
した。Example 2 The procedure was the same as in Example 1, except that the same polyethylene as in Example 1 and the same adhesive component as in Example 1 (no solvent was used) were used, and both were coextruded by the T-die method. It was made into a rolled body.
比較例
摩擦処理を行わないこと以外は実施例２の通りにして巻
重体を得た。Comparative Example A rolled body was obtained in the same manner as in Example 2 except that the friction treatment was not performed.
畝上の実施例及び比較例の測定結果は次表の通りである
。The measurement results of Examples and Comparative Examples on the ridges are shown in the following table.
注１．Ｓ取後の養生：粘着テープを巻重体とした後、温
度と時間について３種類の組合せになる条件下に放置。Note 1. Curing after S removal: After rolling the adhesive tape, it was left under three combinations of temperature and time.
注２巻重体からの展開力は、１０ｍ／分の速度で粘着テ
ープを巻重体から巻戻したときに要する力をｇ１５０ｍ
幅換算値で示す。Note 2: The unrolling force from the roll weight is the force required to unwind the adhesive tape from the roll weight at a speed of 10 m/min, g150 m.
Shown as width conversion value.
注３６対ＳＵＳ粘着カニ壱重体から巻戻した粘着テープ
を、ラミネーターで鏡面ステンレス板に貼付け、３０分
経過後２３℃の温度条件下で３００■／分の速度で１８
０度の角度で引剥がした場合に要する力をｇ１５０閣幅
換算値で示す。Note 36: The adhesive tape rewound from SUS Adhesive Crab Ichigane was pasted on a mirror-finished stainless steel plate using a laminator, and after 30 minutes, it was heated at a temperature of 23°C at a speed of 300 cm/min.
The force required to peel off at an angle of 0 degrees is expressed in terms of g150 cabinet width.
表 率、：テープが伸長変形。table Rate: The tape is stretched and deformed.
率ｔ：テープ変形（カール）。Rate t: tape deformation (curl).
傘３：テープ変形（カール）の為、測定せず。Umbrella 3: Not measured due to tape deformation (curl).
本発明である実施例１２に於いて、巻重体にした後、実
用的な温度範囲で、経時後も展開力が低く維持され、巻
重体から引剥がす際にテープが伸長変形することがなく
、引剥がし後の対ＳＵＳ粘着力も変化がないことが分か
る。比較例では経時的に展開力が高くなり、テープが伸
長変形してカールし、事実上使用できないことが分かる
。In Example 12 of the present invention, after being made into a roll, the unfolding force is maintained low even after time in a practical temperature range, and the tape does not undergo elongation deformation when peeled off from the roll. It can be seen that there is no change in the adhesive strength to SUS after peeling off. It can be seen that in the comparative example, the spreading force increases over time, and the tape stretches and deforms and curls, making it virtually unusable.
（発明の効果）
本発明の粘着テープもしくはシートは、畝上の通り構成
されており、剥離剤を使用しないので、製造工程が簡略
化され、剥離処理に要する工程も簡単でインライン化す
ることが出来、且つ経時後も巻戻し性が良好で、長期に
亘ってその剥離力を維持することが出来、被着材料の表
面を汚染する等の品質面への悪影響もないものを提供し
得る。(Effects of the Invention) The adhesive tape or sheet of the present invention has a ridged structure and does not use a release agent, so the manufacturing process is simplified and the process required for release treatment is also simple and can be implemented in-line. It is possible to provide a product that has good unwinding properties even after aging, can maintain its peeling force over a long period of time, and has no adverse effects on quality such as contaminating the surface of the adhered material.
第１図は基材層の背面の摩擦処理工程を示す説明図であ
る。
１・・・背面、２−・・ガーゼ、３・・−逆方向回転ロ
ール。FIG. 1 is an explanatory diagram showing a friction treatment process on the back surface of the base material layer. 1...back, 2...gauze, 3...-reverse rotation roll.
Claims (1)
とが積層され、基材層の背面が、固体により摩擦処理さ
れてなることを特徴とする粘着テープもしくはシート。 ２、ポリオレフィン系樹脂からなる基材層と、中間層と
、粘着性層とがこの順に積層され、基材層の背面が、固
体により摩擦処理されてなることを特徴とする接着テー
プもしくはシート。[Claims] 1. An adhesive tape or sheet comprising a base layer made of a polyolefin resin and an adhesive layer, the back surface of the base layer being friction-treated with a solid. 2. An adhesive tape or sheet comprising a base layer made of a polyolefin resin, an intermediate layer, and an adhesive layer laminated in this order, and the back surface of the base layer is friction-treated with a solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076155A JP2647189B2 (en) | 1989-03-27 | 1989-03-27 | Adhesive tape or sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076155A JP2647189B2 (en) | 1989-03-27 | 1989-03-27 | Adhesive tape or sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02252777A true JPH02252777A (en) | 1990-10-11 |
| JP2647189B2 JP2647189B2 (en) | 1997-08-27 |
Family
ID=13597147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1076155A Expired - Lifetime JP2647189B2 (en) | 1989-03-27 | 1989-03-27 | Adhesive tape or sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2647189B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008102670A1 (en) | 2007-02-23 | 2008-08-28 | Nitto Denko Corporation | Surface protection sheet |
| WO2009092640A1 (en) * | 2008-01-22 | 2009-07-30 | Tesa Se | Carrier film, in particular for an adhesive tape, and use thereof |
| WO2011122288A1 (en) | 2010-03-31 | 2011-10-06 | 東レフィルム加工株式会社 | Surface protection film |
| WO2011122287A1 (en) | 2010-03-31 | 2011-10-06 | 東レフィルム加工株式会社 | Surface protection film |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI479178B (en) * | 2010-07-13 | 2015-04-01 | Chien Chin Mai | Protective film for optical film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4999543A (en) * | 1973-01-25 | 1974-09-20 | ||
| JPS61162577A (en) * | 1984-12-31 | 1986-07-23 | マヌンリ アウトアデスイヴイ スパ | Pressure-sensitive tape |
-
1989
- 1989-03-27 JP JP1076155A patent/JP2647189B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4999543A (en) * | 1973-01-25 | 1974-09-20 | ||
| JPS61162577A (en) * | 1984-12-31 | 1986-07-23 | マヌンリ アウトアデスイヴイ スパ | Pressure-sensitive tape |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008102670A1 (en) | 2007-02-23 | 2008-08-28 | Nitto Denko Corporation | Surface protection sheet |
| WO2009092640A1 (en) * | 2008-01-22 | 2009-07-30 | Tesa Se | Carrier film, in particular for an adhesive tape, and use thereof |
| CN101978010A (en) * | 2008-01-22 | 2011-02-16 | 德莎欧洲公司 | Carrier film, in particular for an adhesive tape, and use thereof |
| WO2011122288A1 (en) | 2010-03-31 | 2011-10-06 | 東レフィルム加工株式会社 | Surface protection film |
| WO2011122287A1 (en) | 2010-03-31 | 2011-10-06 | 東レフィルム加工株式会社 | Surface protection film |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2647189B2 (en) | 1997-08-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090509 Year of fee payment: 12 |
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| EXPY | Cancellation because of completion of term |