JP2001316643A - Surface protective film - Google Patents

Surface protective film

Info

Publication number
JP2001316643A
JP2001316643A JP2000133117A JP2000133117A JP2001316643A JP 2001316643 A JP2001316643 A JP 2001316643A JP 2000133117 A JP2000133117 A JP 2000133117A JP 2000133117 A JP2000133117 A JP 2000133117A JP 2001316643 A JP2001316643 A JP 2001316643A
Authority
JP
Japan
Prior art keywords
protective film
surface protective
primer layer
film
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
Application number
JP2000133117A
Other languages
Japanese (ja)
Other versions
JP4584404B2 (en
Inventor
Yazo Takagi
彌三 高木
Masashi Takao
真史 高尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sun A Kaken Co Ltd
Original Assignee
Sun A Kaken Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sun A Kaken Co Ltd filed Critical Sun A Kaken Co Ltd
Priority to JP2000133117A priority Critical patent/JP4584404B2/en
Publication of JP2001316643A publication Critical patent/JP2001316643A/en
Application granted granted Critical
Publication of JP4584404B2 publication Critical patent/JP4584404B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Adhesives Or Adhesive Processes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a surface protective film which reduces generation of static electricity on peeling and does not stain an adherend with adhesive residues and, in addition, excels in surface protection performance and is easy to handle. SOLUTION: This surface protective film has a primer layer obtained by crosslinking a crosslinkable polymer having electrostatic induction-prevention properties with an epoxy compound based crosslinking agent on one side of a plastic film and an acrylic pressure-sensitive adhesive layer which is crosslinked with an epoxy resin on the primer layer.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、表面保護フィルムに関
するものであり、特に、保存・運搬または加工されるプ
ラスチック製品の表面保護のための表面保護フィルムに
関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface protection film, and more particularly to a surface protection film for protecting the surface of a plastic product to be stored, transported or processed.

【0002】[0002]

【従来の技術】プラスチック製品が保存・運搬・加工等
の過程で汚染されたり損傷を受けたりするのを防ぐため
表面に貼着しておく表面保護フィルムは、ポリエチレン
フィルム等のプラスチックフィルムの片面に粘着剤層を
設けたものが普通であるが、これが不要になって剥がす
ときに、静電気が発生して剥がした表面保護フィルムば
かりか、被着体にもごみやほこりが付着するという問題
点があった。
2. Description of the Related Art In order to prevent plastic products from being contaminated or damaged in the course of storage, transportation, processing, etc., a surface protection film to be adhered to a surface is a plastic film such as a polyethylene film. Usually, an adhesive layer is provided, but when it is removed when it is no longer needed, static electricity is generated and not only the peeled surface protective film but also dust and dirt adhere to the adherend. Was.

【0003】表面保護フィルムが帯電しないようにする
手段としては、従来、粘着剤中に帯電防止剤を添加して
粘着剤層を制電性のものとする方法、基材フィルムの粘
着剤塗布面に帯電防止剤を塗布しておく方法等があっ
た。
[0003] As a means for preventing the surface protective film from being charged, a method of adding an antistatic agent to the pressure-sensitive adhesive to make the pressure-sensitive adhesive layer antistatic has been conventionally used. A method in which an antistatic agent is applied beforehand.

【0004】しかしながら、粘着剤層に添加された帯電
防止剤は、被着体側にしみだして被着体を汚染すること
がある。また、基材フィルムに塗布させた帯電防止剤
は、フィルムと粘着剤層の間の接着力を低下させるの
で、表面保護フィルムを剥がしたとき、被着体表面に粘
着剤層の一部が残って表面を汚染する、いわゆる糊残り
を起こしやすくなるという問題があった。
[0004] However, the antistatic agent added to the pressure-sensitive adhesive layer may exude to the adherend and contaminate the adherend. In addition, since the antistatic agent applied to the base film reduces the adhesive force between the film and the adhesive layer, when the surface protective film is peeled off, part of the adhesive layer remains on the adherend surface. There is a problem that the surface is contaminated, that is, so-called glue residue is easily caused.

【0005】[0005]

【発明が解決しようとする課題】本発明の目的は、剥離
するときの静電気発生が少なく、糊残りにより被着体を
汚染することもない、表面保護性能に優れ、取り扱いも
容易な表面保護フィルムを提供することにある。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a surface protective film which generates little static electricity when peeled off, does not contaminate an adherend with adhesive residue, has excellent surface protective performance, and is easy to handle. Is to provide.

【0006】[0006]

【課題を解決するための手段】上記目的を達成すること
に成功した本発明の表面保護フィルムは、静電誘導防止
性を有する架橋性重合体をエポキシ化合物系架橋剤によ
り架橋させてなるプライマー層をプラスチックフィルム
の片面に設け、該プライマー層の上に、エポキシ樹脂で
架橋させたアクリル系粘着剤層を設けた表面保護フィル
ムの構成にある。
Means for Solving the Problems The surface protective film of the present invention, which succeeded in achieving the above object, comprises a primer layer obtained by crosslinking a crosslinkable polymer having antistatic induction properties with an epoxy compound crosslinking agent. Is provided on one side of a plastic film, and an acrylic pressure-sensitive adhesive layer crosslinked with an epoxy resin is provided on the primer layer.

【0007】また、静電誘導防止性を有する架橋性重合
体が、第四級アンモニウム塩基およびカルボキシル基を
有するアクリル共重合体である。
[0007] The crosslinkable polymer having an antistatic property is an acrylic copolymer having a quaternary ammonium base and a carboxyl group.

【0008】更に、第四級アンモニウム塩基が、脂肪族
スルホン酸を対イオンとするものである。
Further, the quaternary ammonium base has an aliphatic sulfonic acid as a counter ion.

【0009】[0009]

【発明の実施の形態】本発明実施例による表面保護フィ
ルムでは、静電誘導防止性架橋性重合体を用いたプライ
マー層が表面保護フィルム剥離時の静電気発生を防止す
る。一般的な帯電防止剤がそれ自身の極性によりフィル
ム表面の電気抵抗を低下させ、それにより、発生した静
電気の放電を促進させるのに対し、上記プライマー層の
作用は、それに接する基材フィルムや粘着剤層の静電誘
導を防止し、表面保護フィルム表面の帯電を防止すると
同時に、それと接触する他のプラスチック製品の誘導帯
電も防止することによるものである。
BEST MODE FOR CARRYING OUT THE INVENTION In a surface protective film according to an embodiment of the present invention, a primer layer using a crosslinkable polymer capable of preventing static induction prevents static electricity from being generated when the surface protective film is peeled off. While the general antistatic agent lowers the electrical resistance of the film surface due to its own polarity and thereby promotes the discharge of generated static electricity, the action of the above-mentioned primer layer is that the primer film is in contact with the substrate film or the adhesive. This is because the electrostatic induction of the agent layer is prevented, and the surface of the surface protective film is prevented from being charged, and at the same time, the induced charging of other plastic products in contact therewith is also prevented.

【0010】帯電防止剤のように表面保護フィルムの表
面に移動せず、プライマー層として存在するだけで発現
する作用であるから、その性能は長期間安定している。
このプライマー層は、基材フィルムと粘着剤層を強固に
結合する作用もする。
Unlike the antistatic agent, it does not move to the surface of the surface protective film, but only acts as a primer layer. Therefore, its performance is stable for a long time.
This primer layer also acts to firmly bond the base film and the pressure-sensitive adhesive layer.

【0011】本発明実施例でプライマー層に用いる静電
誘導防止性架橋性重合体の代表的なものは、側鎖に第四
級アンモニウム塩基およびカルボキシル基を有し、前者
により静電誘導防止作用を示し、後者により架橋反応が
可能なアクリル共重合体である。
Representative examples of the anti-static induction cross-linkable polymer used in the primer layer in the present invention have a quaternary ammonium base and a carboxyl group in the side chain. And an acrylic copolymer capable of undergoing a crosslinking reaction by the latter.

【0012】このような共重合体は、ジメチルアミノエ
チルアクリレートの第四級アンモニウム塩化物など、第
四級アンモニウム塩基を有するアクリレート(メタクリ
レートを含む)モノマー、アクリル酸(メタクリル酸を
含む)、およびアクリル酸(メタクリル酸を含む)エス
テルなどの極性基を有しないビニルモノマーを、それぞ
れ15〜25mol%、5〜10mol%、65〜80
mol%程度の比率で共重合させることにより得られる
ものである。
[0012] Such copolymers include acrylate (including methacrylate) monomers having quaternary ammonium bases, such as quaternary ammonium chloride of dimethylaminoethyl acrylate, acrylic acid (including methacrylic acid), and acrylic acid. A vinyl monomer having no polar group such as an acid (including methacrylic acid) ester is used in an amount of 15 to 25 mol%, 5 to 10 mol%, 65 to 80 mol%, respectively.
It is obtained by copolymerizing at a ratio of about mol%.

【0013】中でもプライマー層に好適なものは、上記
第四級アンモニウム塩基の対イオンが脂肪族スルホン酸
であるものである(市販品としてはアルテック株式会社
製のBONDEIP PA−100等がある)。しかし
ながら、ほかにも使用可能な静電誘導防止性架橋性重合
体は多数あり、それらの詳細は特開平8−127755
号公報、特開平10−55894号公報等に開示されて
いる。
Among them, those suitable for the primer layer are those in which the counter ion of the quaternary ammonium base is an aliphatic sulfonic acid (commercially available products include BONDEIP PA-100 manufactured by Altec Co., Ltd.). However, there are many other antistatic induction-crosslinkable polymers that can be used, and details thereof are described in JP-A-8-127755.
And Japanese Patent Application Laid-Open No. H10-55894.

【0014】静電誘導防止性架橋性重合体を架橋させる
ための架橋剤としては、静電誘導防止性架橋性重合体に
対して約15〜30重量%の2官能、もしくは3官能の
エポキシ誘導体、たとえばジエチレングリコールグリシ
ジルエーテル、グリセリンジグリシジルエーテル、ビス
フェノールAジグリシジルエーテル、トリメチロールプ
ロパントリグリシジルエーテル等を用いる。
As a crosslinking agent for crosslinking the anti-static induction cross-linkable polymer, about 15 to 30% by weight of the di- or tri-functional epoxy derivative with respect to the anti-static induction cross-linkable polymer is used. For example, diethylene glycol glycidyl ether, glycerin diglycidyl ether, bisphenol A diglycidyl ether, trimethylolpropane triglycidyl ether and the like are used.

【0015】上述のような静電誘導防止性架橋性重合体
と架橋剤を用いて、固形分として約0.1〜0.5g/
2 になる量のプライマー層を、基材フィルム上に形成
させる。
Using the above-mentioned crosslinkable polymer having antistatic induction and a crosslinking agent, a solid content of about 0.1 to 0.5 g /
An amount of m 2 of the primer layer is formed on the substrate film.

【0016】形成されたプライマー層の上に設ける粘着
剤層は、エポキシ樹脂で架橋させたアクリル系粘着剤で
あることが必要である。
The pressure-sensitive adhesive layer provided on the formed primer layer needs to be an acrylic pressure-sensitive adhesive crosslinked with an epoxy resin.

【0017】一般的な表面保護フィルムのためのアクリ
ル系粘着剤に使われる架橋性剤としては、ポリイソシア
ネートが代表的なものであり、次いでエポキシ樹脂、尿
素樹脂、メラミン樹脂、多価金属化合物等が使われてい
るが、エポキシ樹脂以外のものを用いたのでは、静電誘
導防止性架橋性重合体を用いたプライマー層の前述の機
能が損なわれ、また、プライマー層と粘着剤層との間の
接着力も不足して表面保護フィルム剥離時の糊残りを起
こしやすくなる。
As a cross-linking agent used for an acrylic pressure-sensitive adhesive for a general surface protective film, polyisocyanate is a typical one, followed by an epoxy resin, a urea resin, a melamine resin, and a polyvalent metal compound. However, if a material other than an epoxy resin is used, the above-described function of the primer layer using the antistatic cross-linking polymer is impaired, and the primer layer and the pressure-sensitive adhesive layer Adhesive force between them is also insufficient, and adhesive residue tends to occur when the surface protective film is peeled off.

【0018】使用可能な粘着剤の市販品の例としてはS
Kダイン1829があり、また架橋剤の例としてはE−
AXがある(いずれも綜研化学社製)。
Examples of commercially available pressure-sensitive adhesives include S
K-Dyne 1829, and an example of a crosslinking agent is E-
AX (all manufactured by Soken Chemical Co., Ltd.).

【0019】粘着剤層の厚みは約3〜10μmにするこ
とが望ましい。厚さ3μm未満では表面保護フィルムと
して必要な粘着力が得られない。一方、厚みが10μm
を越えると、プライマー層による静電誘導防止効果が不
十分になる。
The thickness of the pressure-sensitive adhesive layer is preferably about 3 to 10 μm. If the thickness is less than 3 μm, the adhesive strength required as a surface protective film cannot be obtained. On the other hand, the thickness is 10 μm
When the ratio exceeds the above, the effect of preventing the induction of static electricity by the primer layer becomes insufficient.

【0020】本発明実施例による表面保護フィルムの基
材フィルムは特に限定されるものではないが、この種の
用途に通常使用されている20〜100μm厚(好まし
くは30〜60μm厚)の高密度ポリエチレンフィルム
または低密度ポリエチレンフィルムが適当である。
The substrate film of the surface protective film according to the embodiment of the present invention is not particularly limited, but the high-density film having a thickness of 20 to 100 μm (preferably 30 to 60 μm) generally used for this kind of application is used. A polyethylene film or a low density polyethylene film is suitable.

【0021】本発明実施例による表面保護フィルムは、
帯電しやすい各種プラスチック製品のほか、金属製品、
ガラス製品等の表面保護のために、従来の表面保護フィ
ルムと同様にして使用することができる。
The surface protective film according to the embodiment of the present invention comprises:
In addition to plastic products that are easily charged, metal products,
For surface protection of glass products and the like, it can be used in the same manner as a conventional surface protection film.

【0022】[0022]

【実施例】以下、実施例を示して本発明を説明する。 [実施例1]厚さ60μmのポリエチレンフィルムの片
面にコロナ放電処理を施し、次いでカルボキシル基およ
び第四級アンモニウム塩基を有する静電誘導防止性架橋
性重合体BONDEIP PA−100(アルテック社
製)と、エポキシ系架橋剤1:1の混合物を固形分とし
て0.3g/m2になるように塗布した。乾燥後、エポキ
シ樹脂で架橋させたアクリル樹脂系粘着剤を、厚さが1
0μmになるように塗布し、乾燥して表面保護フィルム
を得た。
The present invention will be described below with reference to examples. Example 1 One side of a polyethylene film having a thickness of 60 μm was subjected to a corona discharge treatment, and then a crosslinkable polymer BONDEIP PA-100 having a carboxyl group and a quaternary ammonium base was used. A 1: 1 mixture of an epoxy crosslinking agent was applied so as to have a solid content of 0.3 g / m 2 . After drying, an acrylic resin-based pressure-sensitive adhesive crosslinked with an epoxy resin
It was applied to a thickness of 0 μm and dried to obtain a surface protective film.

【0023】この表面保護フィルムを、温度23℃の室
内で、厚さ3mmのアクリル樹脂板に2kgのゴムロー
ラを用いて貼着し、2種類の環境で7日間放置して、被
着体の汚染と粘着力(mN/25mm)の経時的変化を
調べた。また、23℃×65%RHの室内で、剥離速度
30mm/minにて引き剥がした際の剥離帯電圧を、
被着体から50mmの位置で測定した(日本スタテイッ
ク社製 静電測定器SV−73Aを使用)。
The surface protective film was adhered to an acrylic resin plate having a thickness of 3 mm using a 2 kg rubber roller in a room at a temperature of 23 ° C., and was left for 7 days in two kinds of environments to contaminate the adherend. And time-dependent changes in adhesive strength (mN / 25 mm). The peeling voltage when peeled at a peeling speed of 30 mm / min in a room at 23 ° C. × 65% RH is as follows:
The measurement was performed at a position 50 mm from the adherend (using an electrostatic measuring device SV-73A manufactured by Nippon Static Co., Ltd.).

【0024】[比較例1]アクリル樹脂系粘着剤の厚み
15μmとしたほかは、実施例1と同様にして表面保護
フィルムを製造し、これについて、実施例1の場合と同
様の試験を行なった。
Comparative Example 1 A surface protective film was manufactured in the same manner as in Example 1 except that the thickness of the acrylic resin-based pressure-sensitive adhesive was changed to 15 μm, and the same test as in Example 1 was performed. .

【0025】[比較例2]静電誘導防止性架橋性重合体
によるプライマー層を設ける代わりに帯電防止剤(カチ
オン型アクリル系樹脂第四級アンモニウム塩)を塗布し
たほかは、実施例1と同様にして表面保護フィルムを製
造し、これについて、実施例1の場合と同様の試験を行
なった。
Comparative Example 2 Same as Example 1 except that an antistatic agent (cationic acrylic resin quaternary ammonium salt) was applied instead of providing a primer layer made of a crosslinkable polymer having antistatic induction properties. The surface protection film was manufactured in the same manner as described above, and the same test as in Example 1 was performed.

【0026】[比較例3]静電誘導防止性架橋性重合体
によるプライマー層を設ける代わりに、帯電防止剤(カ
チオン界面活性物質)を塗布したほかは、実施例1の場
合と同様にして表面保護フィルムを製造し、これについ
て、実施例1と同様の試験を行なった。
Comparative Example 3 A surface was prepared in the same manner as in Example 1 except that an antistatic agent (cationic surfactant) was applied instead of providing a primer layer made of a crosslinkable polymer having antistatic induction properties. A protective film was manufactured, and the same test as in Example 1 was performed.

【0027】[比較例4]エポキシ樹脂架橋アクリル系
粘着剤に代えてイソシアネート架橋型アクリル樹脂系粘
着剤を用いたほかは、実施例1と同様にして表面保護フ
ィルムを製造し、これについて、実施例1の場合と同様
の試験を行なった。
Comparative Example 4 A surface protective film was produced in the same manner as in Example 1 except that an isocyanate crosslinked acrylic resin-based pressure-sensitive adhesive was used instead of the epoxy resin crosslinked acrylic pressure-sensitive adhesive. The same test as in Example 1 was performed.

【0028】上記各例の試験結果をまとめて表1に示
す。
Table 1 summarizes the test results of the above examples.

【表1】 [Table 1]

【0029】実施例1によるフィルムは、剥離帯電圧が
きわめて低く、粘着力も安定していると共に、被着体汚
染することもなかった。
The film of Example 1 had an extremely low peeling voltage, stable adhesive strength, and did not contaminate the adherend.

【0030】比較例1は、剥離帯電圧の増加が著しく、
粘着力増加も大きい。比較例2は、剥離帯電圧は低い
が、保存条件が苛酷になると粘着力の低下があり、ま
た、糊残りが発生する。比較例3は、帯電防止剤のブリ
ードによる被着体汚染が著しい。比較例4は、粘着性能
に関しては実施例1とほぼ同等であるが、剥離帯電圧の
増加が顕著である。
In Comparative Example 1, the peeling voltage was significantly increased.
The increase in adhesive strength is also large. In Comparative Example 2, the peeling voltage was low, but when the storage conditions were severe, the adhesive strength was reduced, and adhesive residue was generated. In Comparative Example 3, adherend contamination due to bleed of the antistatic agent was remarkable. Comparative Example 4 is almost the same as Example 1 in terms of adhesive performance, but has a remarkable increase in peeling electrostatic voltage.

【発明の効果】前述のように本発明の表面保護フィルム
は、静電誘導防止性を有する架橋性重合体をエポキシ化
合物系架橋剤により架橋させてなるプライマー層とエポ
キシ樹脂で架橋させたアクリル系粘着剤層が基材フィル
ムに強固に結合されており、しかも、のプライマー層に
よる帯電防止作用は作用物質が表面に移行することなし
にプライマー層として存在するだけで効果を発揮するも
のであるから、その静電誘導防止作用と粘着性は苛酷な
環境に置かれても長期間安定している。
As described above, the surface protective film of the present invention comprises a primer layer formed by crosslinking a crosslinkable polymer having antistatic induction properties with an epoxy compound crosslinking agent and an acrylic resin formed by crosslinking with an epoxy resin. Since the pressure-sensitive adhesive layer is firmly bonded to the base film, and the antistatic effect of the primer layer is effective only when the active substance is present as the primer layer without transferring to the surface. Its antistatic effect and adhesiveness are stable for a long time even in severe environments.

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 4J004 AA10 AB01 CA04 CC02 CE01 FA04 4J040 DF041 DF051 GA07 GA25 JB09 KA43 LA09 MA10 MB03 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4J004 AA10 AB01 CA04 CC02 CE01 FA04 4J040 DF041 DF051 GA07 GA25 JB09 KA43 LA09 MA10 MB03

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 静電誘導防止性を有する架橋性重合体を
エポキシ化合物系架橋剤により架橋させてなるプライマ
ー層をプラスチックフィルムの片面に設け、該プライマ
ー層の上に、エポキシ樹脂で架橋させたアクリル系粘着
剤層を設けたことを特徴とする表面保護フィルム。
1. A primer layer obtained by crosslinking a crosslinkable polymer having antistatic induction property with an epoxy compound-based crosslinking agent is provided on one surface of a plastic film, and the primer layer is crosslinked with an epoxy resin. A surface protective film provided with an acrylic pressure-sensitive adhesive layer.
【請求項2】 静電誘導防止性を有する架橋性重合体が
第四級アンモニウム塩基およびカルボキシル基を有する
アクリル共重合体であることを特徴とする請求項1記載
の表面保護フィルム。
2. The surface protective film according to claim 1, wherein the crosslinkable polymer having a property of preventing electrostatic induction is an acrylic copolymer having a quaternary ammonium base and a carboxyl group.
【請求項3】 第四級アンモニウム塩基が脂肪族スルホ
ン酸を対イオンとするものであることを特徴とする請求
項2記載の表面保護フィルム。
3. The surface protective film according to claim 2, wherein the quaternary ammonium base has an aliphatic sulfonic acid as a counter ion.
JP2000133117A 2000-05-02 2000-05-02 Surface protection film Expired - Lifetime JP4584404B2 (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008220545A (en) * 2007-03-12 2008-09-25 Asahi Kasei Chemicals Corp Composite sheet for pinball game machine base
US7887914B2 (en) 2004-09-16 2011-02-15 Nitto Denko Corporation Pressure-sensitive adhesive compositions, pressure-sensitive adhesive sheets and surface protecting films
JP2011167862A (en) * 2010-02-16 2011-09-01 Kyodo Giken Kagaku Kk Protector of display
US8092907B2 (en) 2004-09-16 2012-01-10 Nitto Denko Corporation Pressure-sensitive adhesive compositions, pressure-sensitive adhesive sheets and surface protecting films
US8153251B2 (en) 2004-04-30 2012-04-10 Nitto Denko Corporation Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheets
JP2013240686A (en) * 2013-07-22 2013-12-05 Asahi Kasei Chemicals Corp Complex sheet for base plate of pachinko game machine
US9328264B2 (en) 2009-02-27 2016-05-03 Nitto Denko Corporation Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, and pressure-sensitive adhesive sheet

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07252456A (en) * 1994-03-16 1995-10-03 Arutetsuku Kk Antielectrostatic-induction adhesive primer
JPH09267449A (en) * 1996-03-29 1997-10-14 Kimoto & Co Ltd Surface protective film
JPH09267499A (en) * 1996-04-01 1997-10-14 Matsushita Electric Ind Co Ltd Video printer
JPH1055894A (en) * 1996-08-09 1998-02-24 Arutetsuku Kk Heat resistant electrostatic induction preventing adhesive primer
JPH10138409A (en) * 1996-11-14 1998-05-26 Sekisui Chem Co Ltd Double coated adhesive tape

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07252456A (en) * 1994-03-16 1995-10-03 Arutetsuku Kk Antielectrostatic-induction adhesive primer
JPH09267449A (en) * 1996-03-29 1997-10-14 Kimoto & Co Ltd Surface protective film
JPH09267499A (en) * 1996-04-01 1997-10-14 Matsushita Electric Ind Co Ltd Video printer
JPH1055894A (en) * 1996-08-09 1998-02-24 Arutetsuku Kk Heat resistant electrostatic induction preventing adhesive primer
JPH10138409A (en) * 1996-11-14 1998-05-26 Sekisui Chem Co Ltd Double coated adhesive tape

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8153251B2 (en) 2004-04-30 2012-04-10 Nitto Denko Corporation Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheets
US7887914B2 (en) 2004-09-16 2011-02-15 Nitto Denko Corporation Pressure-sensitive adhesive compositions, pressure-sensitive adhesive sheets and surface protecting films
US8092907B2 (en) 2004-09-16 2012-01-10 Nitto Denko Corporation Pressure-sensitive adhesive compositions, pressure-sensitive adhesive sheets and surface protecting films
JP2008220545A (en) * 2007-03-12 2008-09-25 Asahi Kasei Chemicals Corp Composite sheet for pinball game machine base
US9328264B2 (en) 2009-02-27 2016-05-03 Nitto Denko Corporation Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, and pressure-sensitive adhesive sheet
JP2011167862A (en) * 2010-02-16 2011-09-01 Kyodo Giken Kagaku Kk Protector of display
JP2013240686A (en) * 2013-07-22 2013-12-05 Asahi Kasei Chemicals Corp Complex sheet for base plate of pachinko game machine

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