JPH11209705A - High-purity tacky sheets - Google Patents
High-purity tacky sheetsInfo
- Publication number
- JPH11209705A JPH11209705A JP1096698A JP1096698A JPH11209705A JP H11209705 A JPH11209705 A JP H11209705A JP 1096698 A JP1096698 A JP 1096698A JP 1096698 A JP1096698 A JP 1096698A JP H11209705 A JPH11209705 A JP H11209705A
- Authority
- JP
- Japan
- Prior art keywords
- purity
- pressure
- sensitive adhesive
- adhesive
- tacky
- 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.)
- Pending
Links
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、粘着剤層のガス化
成分が極めて少ない、シ―ト状やテ―プ状などの高純度
粘着シ―ト類に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-like or tape-like high-purity pressure-sensitive adhesive sheet having a gaseous component in a pressure-sensitive adhesive layer which is extremely small.
【０００２】[0002]
【従来の技術】従来、粘着テ―プ製品は、部品の固定の
ための接合用、段ボ―ルの梱包用など多くの分野で利用
されている。このような粘着テ―プ製品は、通常、良好
に接着しかつその性能を保持するように、設計されてお
り、とくに製造が容易であるという点から、支持体上に
設けられる粘着剤層としてアクリル系ポリマ―や天然ゴ
ムなどを主成分とした粘着剤組成物が多く用いられてい
る。2. Description of the Related Art Conventionally, adhesive tape products have been used in many fields such as joining for fixing parts and packing of corrugated balls. Such an adhesive tape product is usually designed so as to adhere well and retain its performance, and in particular, because it is easy to manufacture, as an adhesive layer provided on a support. An adhesive composition containing an acrylic polymer or a natural rubber as a main component is often used.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、天然ゴムを
主成分とした粘着剤組成物は、すぐれた接着性を示すも
のの耐久性が不足するうえに、ゴム臭がある。また、耐
久性にすぐれるアクリルポリマ―を主成分とした粘着剤
組成物にも、アクリル臭がある。However, a pressure-sensitive adhesive composition containing a natural rubber as a main component exhibits excellent adhesiveness but lacks durability and has a rubber odor. Further, the pressure-sensitive adhesive composition containing an acrylic polymer having excellent durability as a main component also has an acrylic odor.
【０００４】このように、従来の粘着テ―プには、ポリ
マ―特有の臭いがあり、このことからもわかるように、
微量ながらもガス化成分が残つている。このガス化成分
は、通常の使用状況では問題とならないが、半導体、医
薬品、食品の製造工程などで用いられるクリ―ンル―ム
用としては、極微量であつても問題になりつつある。こ
れは、クリ―ンル―ムでは、従来、物理的粒子の存在が
問題視されこれを取り除くことに注意が払われていた
が、近年になり、クリ―ンル―ム内で発生するケミカル
汚染が製品不良などの原因として問題視されてきたため
である。[0004] As described above, the conventional adhesive tape has a odor peculiar to the polymer.
A small amount of gasification components remain. Although this gasification component does not pose a problem in normal use conditions, it is becoming a problem even for an extremely small amount for a clean room used in the production process of semiconductors, pharmaceuticals and foods. This is because in the clean room, attention has been paid to removing and removing the presence of physical particles in the past, but in recent years, chemical contamination generated in the clean room has been reduced. This is because it has been regarded as a problem as a cause of defective products.
【０００５】このため、活性炭フイルタなどを用いて、
ガス化成分を除去する試みがなされているが、活性炭で
の吸着除去では、ガス化成分で飽和すると吸着除去能率
が低下するため、しばしばその交換が必要となるなどの
問題が予想される。現在のところは、粘着テ―プが汚染
源となつている可能性が高いとは考えにくいが、より高
純度の粘着テ―プが要求されることは必至である。Therefore, using an activated carbon filter or the like,
Attempts have been made to remove gasification components, but in adsorption removal with activated carbon, adsorption saturation with gasification components reduces the efficiency of adsorption removal, so that problems such as the need for replacement are often expected. At present, it is unlikely that sticky tape is likely to be a source of contamination, but the need for higher purity sticky tape is inevitable.
【０００６】本発明は、このような事情に照らし、粘着
剤層のガス化成分が極めて少ない、とくにクリ―ンル―
ム用として有用であるシ―ト状やテ―プ状などの高純度
粘着シ―ト類を提供することを目的としている。The present invention has been made in view of the above circumstances, and the pressure-sensitive adhesive layer has an extremely small amount of gasification components, especially clean water.
It is an object of the present invention to provide high-purity adhesive sheets such as sheets and tapes that are useful for use in games.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、上記の目
的に対する鋭意検討の過程において、まず、従来の粘着
テ―プでは、１００℃，１時間加熱時における発生ガス
量が一般に１０μｇ／cm2 程度もしくはそれ以上となる
ことを究明した。また、これは、通常の粘着テ―プの使
用状況、つまり室温での使用状況下では、ガス化成分の
放出も少なく、包装形態によつては臭いがするといつた
程度で、とくに問題とならないが、クリ―ンル―ム用と
して、たとえば、半導体部品の接着固定など、比較的高
温の使用環境下に晒されやすい用途などでは、発生ガス
量が多くなるおそれがあることを究明した。Means for Solving the Problems In the course of intensive studies on the above object, the present inventors first found that the amount of gas generated when heating at 100 ° C. for 1 hour was generally 10 μg / hour with a conventional adhesive tape. It was investigated to be a cm 2, or more. In addition, under normal usage conditions of adhesive tape, that is, at room temperature, the release of gaseous components is small, and depending on the type of packaging, it is only a matter of time when it smells, and there is no particular problem. However, it has been found that there is a possibility that the amount of generated gas may increase in a clean room, for example, in an application that is easily exposed to a relatively high-temperature use environment such as bonding and fixing of a semiconductor component.
【０００８】そこで、本発明者らは、上記の知見に基づ
いて、さらに検討を続けたところ、支持体上に設ける粘
着剤層として、適宜の粘着性ポリマ―を選択したり、ま
たこれを架橋するなどして、上記粘着剤層に基づく１０
０℃，１時間加熱時における発生ガス量を所定値以下に
抑え、かつ接着力を所定値以上とした特定の粘着シ―ト
類を用いることにより、発生ガスに起因した前記問題を
きたすことなく、所期の接着固定目的を達成でき、クリ
―ンル―ム用として適した性能を発揮させうるものであ
ることを知り、本発明を完成するに至つた。Accordingly, the present inventors have further studied on the basis of the above findings, and have selected an appropriate adhesive polymer as an adhesive layer provided on a support, and cross-linked the adhesive polymer. To make 10 based on the above-mentioned pressure-sensitive adhesive layer.
The above-mentioned problems caused by the generated gas can be prevented by using a specific adhesive sheet that suppresses the generated gas amount at the time of heating at 0 ° C. for one hour to a predetermined value or less and has an adhesive force of a predetermined value or more. As a result, the present inventors have found that the intended purpose of adhesion and fixation can be achieved, and the performance suitable for a clean room can be exhibited, and the present invention has been completed.
【０００９】すなわち、本発明は、支持体の片面または
両面に粘着剤層を有し、１００℃，１時間加熱時におけ
る発生ガス量が１μｇ／cm2 以下で、室温における接着
力が０．６Kg／２０mm幅以上であることを特徴とする高
純度粘着シ―ト類（請求項１）に係るものである。とく
に、粘着剤層が脂肪族ポリエステルを含む粘着剤組成物
からなる上記構成の高純度粘着シ―ト類（請求項２）、
支持体がプラスチツクフイルムまたは無塵紙である上記
構成の高純度粘着シ―ト類（請求項３）を提供できるも
のである。また、本発明は、クリ―ンル―ム用として用
いられる上記各構成の高純度粘着シ―ト類（請求項４）
を提供できるものである。That is, the present invention has a pressure-sensitive adhesive layer on one side or both sides of a support, an amount of gas generated when heated at 100 ° C. for 1 hour is 1 μg / cm 2 or less, and an adhesive force at room temperature is 0.6 kg. / 20 mm width or more, relates to high-purity adhesive sheets (Claim 1). In particular, high-purity pressure-sensitive adhesive sheets having the above constitution, wherein the pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive composition containing an aliphatic polyester (Claim 2),
The present invention can provide a high-purity pressure-sensitive adhesive sheet having the above-mentioned structure, wherein the support is a plastic film or dust-free paper. Further, the present invention provides a high-purity adhesive sheet having the above-mentioned structure used for a clean room.
Can be provided.
【００１０】[0010]
【発明の実施の形態】本発明の高純度粘着シ―ト類は、
支持体の片面または両面に粘着剤層を設けてテ―プ状や
シ―ト状などの形態としたものであり、１００℃，１時
間加熱時における発生ガス量が１μｇ／cm2 以下、好ま
しくは０．５μｇ／cm2 以下であり、かつ室温での接着
力が０．６Kg／２０mm幅以上、好ましくは１．０Kg／２
０mm幅以上、さらに好ましくは１．５Kg／２０mm幅以上
（通常は１０Kg／２０mm幅まで）とされたものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The high-purity adhesive sheets of the present invention are:
An adhesive layer is provided on one or both sides of the support to form a tape or sheet, and the amount of gas generated upon heating at 100 ° C. for 1 hour is preferably 1 μg / cm 2 or less. Is 0.5 μg / cm 2 or less, and the adhesion at room temperature is 0.6 kg / 20 mm width or more, preferably 1.0 kg / 2.
The width is at least 0 mm, more preferably at least 1.5 kg / 20 mm (usually up to 10 kg / 20 mm).
【００１１】ここで、ガス化成分が上記のように極めて
少なく設定されていることから、通常の使用環境はもち
ろんのこと、比較的高温の使用環境下においてさえも、
長期にわたりガス化成分が少なく、高い信頼性をもつて
使用可能であり、しかも室温での接着力が上記のように
高く設定されているために、部材などの固定などに対し
良好な接着性を発揮させることができる。[0011] Here, since the gasification components are set to be extremely small as described above, not only in a normal use environment but also in a relatively high temperature use environment,
It can be used with low gasification components and high reliability over a long period of time, and because the adhesive strength at room temperature is set high as described above, it has good adhesiveness for fixing members etc. Can be demonstrated.
【００１２】支持体としては、クリ―ンル―ム用として
適した、とくにガス化成分の少ないものが選択され、一
般に、厚さが通常５〜１００μｍのポリイミドフイル
ム、エチレン−プロピレン共重合体フイルムなどのプラ
スチツクフイルムや無塵紙などが用いられる。また、こ
の支持体の片面または両面に設ける粘着剤層は、厚さが
片面で通常５〜１００μｍで、シ―ト類全体のガス化成
分および接着力が前記範囲に入るように、適宜の粘着剤
が用いられる。この粘着剤には、天然ゴム系やアクリル
系などの粘着剤も含まれるが、これらの場合、ガス化成
分の上記設定のために、一般の製造条件に比べて、乾燥
条件を高度に設定したり、また減圧乾燥などの特別の手
段を付加しなければならない。As the support, those suitable for a clean room, particularly those having a small amount of gasification components are selected. In general, polyimide films, ethylene-propylene copolymer films, etc. having a thickness of usually 5 to 100 μm are used. Plastic film or dust-free paper. The pressure-sensitive adhesive layer provided on one side or both sides of the support is usually 5 to 100 μm in thickness on one side, and an appropriate pressure-sensitive adhesive is applied so that the gasification component and the adhesive force of the entire sheet fall within the above ranges. Agent is used. This pressure-sensitive adhesive also includes pressure-sensitive adhesives such as natural rubber-based and acrylic-based, but in these cases, the drying conditions are set to be higher than the general production conditions due to the above setting of the gasification components. And special means such as drying under reduced pressure must be added.
【００１３】これに対し、本発明者らは、天然ゴム系や
アクリル系などの粘着剤に代えて、脂肪族ポリエステル
を粘着性ポリマ―とした粘着剤組成物によると、通常の
乾燥条件でガス化成分および接着力が前記の範囲に入る
粘着シ―ト類を容易に得ることができ、本発明の粘着剤
としてとくに好ましいことを見い出した。すなわち、上
記ポリエステルやその合成原料などの特性に基づいて、
温度１００℃以上（通常１５０℃まで）、時間１０分以
内、好ましくは５分以内（通常１分以上）の通常の条件
で乾燥するだけで、ガス化成分および接着力が前記範囲
に入る本発明の粘着シ―ト類を製造容易に得ることがで
きる。On the other hand, the present inventors, according to the pressure-sensitive adhesive composition using an aliphatic polyester as a pressure-sensitive adhesive instead of a natural rubber-based or acrylic-based pressure-sensitive adhesive, have a gas-drying property under ordinary drying conditions. It has been found that pressure-sensitive adhesive sheets having adhesive components and adhesive strengths within the above ranges can be easily obtained, and are particularly preferable as the pressure-sensitive adhesive of the present invention. That is, based on the properties of the above polyester and its synthetic raw materials,
The present invention in which the gasification component and the adhesive force are within the above-mentioned ranges only by drying under ordinary conditions of a temperature of 100 ° C. or more (usually up to 150 ° C.) and a time of 10 minutes or less, preferably 5 minutes or less (usually 1 minute or more). Can easily be produced.
【００１４】このような脂肪族系ポリエステルを主成分
とした粘着剤組成物としては、たとえば、カ―ボネ―ト
結合を有する脂肪族ポリエステル、ラクトン構造を持つ
脂肪族ポリエステルなどを主成分としたものが挙げら
れ、とくにこれらの脂肪族ポリエステルにポリイソシア
ネ―ト化合物などの架橋剤を加えて架橋処理することに
より、上記接着力に設定したものが好ましく用いられ
る。Examples of the pressure-sensitive adhesive composition containing an aliphatic polyester as a main component include, for example, an aliphatic polyester having a carbonate bond, an aliphatic polyester having a lactone structure, and the like. In particular, those obtained by adding a crosslinking agent such as a polyisocyanate compound to these aliphatic polyesters and subjecting them to a crosslinking treatment so as to have the above-mentioned adhesive strength are preferably used.
【００１５】なお、これらの粘着剤組成物には、ガス化
成分を増加させない限り、従来公知の各種の粘着付与剤
を加えてもよい。粘着剤付与剤の使用により粘着性と耐
熱性のバランスがとりやすくなることもある。また、無
機や有機の充填剤、金属粉、顔料などの粉体、粒子状、
箔状物などの公知の各種の添加剤を含ませてもよく、さ
らに各種の老化防止剤を加えて耐久性を向上させてもよ
い。Incidentally, various conventionally known tackifiers may be added to these pressure-sensitive adhesive compositions as long as the gasification component is not increased. The use of a tackifier may sometimes make it easier to balance tackiness and heat resistance. In addition, inorganic and organic fillers, metal powders, powders such as pigments, particles,
Various known additives such as a foil-like material may be included, and durability may be improved by further adding various anti-aging agents.
【００１６】このように構成される本発明の粘着シ―ト
類は、使用環境下でのガス化成分が少なく、かつ高い接
着力を示すことから、とくに半導体、医薬品、食品の製
造工程などのクリ―ンル―ム用の接着材料として、利用
できる。また、上記のクリ―ンル―ム用に限らず、一般
の各種用途にも使用可能である。The pressure-sensitive adhesive sheets of the present invention thus constituted have a small amount of gasification components and a high adhesive strength under the use environment, and are particularly useful in the production processes of semiconductors, pharmaceuticals, foods and the like. It can be used as an adhesive for clean rooms. Further, it can be used not only for the above-mentioned clean room, but also for various general uses.
【００１７】[0017]
【実施例】以下に、本発明を実施例によりさらに詳細に
説明するが、本発明の範囲は以下の実施例によりなんら
制限を受けるものではない。なお、以下において、部と
あるのは重量部を意味するものとする。The present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited by the following examples. In the following, “parts” means “parts by weight”.
【００１８】実施例１ 四つ口セパラブルフラスコに、攪拌機、温度計および水
分離管を付し、ポリカ―ボネ―トジオ―ル〔ダイセル化
学工業（株）製の「ＰＬＡＣＣＥＬ ＣＤ２１０Ｐ
Ｌ」、水酸基価：１１５ＫＯＨmg／ｇ〕２５０ｇ、セバ
シン酸５１．８ｇ、触媒としてのジブチルチンオキサイ
ド（以下、ＤＢＴＯという）１２７mgを仕込み、反応水
排出溶剤としての少量のトルエンの存在下、攪拌を開始
しながら１８０℃まで昇温し、この温度で保持した。し
ばらくすると、水の流出分離が認められ、反応が進行し
はじめた。約２４時間反応を続けて、重量平均分子量が
５５，０００の脂肪族ポリエステルを得た。Example 1 A four-necked separable flask was equipped with a stirrer, a thermometer, and a water separation tube, and was made of polycarbonate [Daicel Chemical Industries, Ltd. "PLACCEL CD210P".
L ", hydroxyl value: 115 KOH mg / g], 250 g, sebacic acid 51.8 g, dibutyltin oxide (hereinafter referred to as DBTO) 127 mg as a catalyst, and stirring was started in the presence of a small amount of toluene as a reaction water discharge solvent. The temperature was raised to 180 ° C. while maintaining the temperature. After a while, water separation was observed, and the reaction began to proceed. The reaction was continued for about 24 hours to obtain an aliphatic polyester having a weight average molecular weight of 55,000.
【００１９】この脂肪族ポリエステルをトルエンで固形
分濃度４０重量％に希釈した。これに、脂肪族ポリエス
テル１００部（固形分）に対し、架橋剤としてトリメチ
ロ―ルプロパン／ヘキサメチレンジイソシアネ―ト付加
物〔日本ポリウレタン（株）製の「コロネ―トＨＬ」〕
２部（固形分）を加えて、粘着剤組成物とした。この粘
着剤組成物を、アプリケ―タにより、厚さが３８μｍの
延伸ポリプロピレンフイルムからなる支持体上に塗布
し、１２０℃で３分間乾燥して、厚さが５０μｍの粘着
剤層を形成し、高純度粘着テ―プを作製した。This aliphatic polyester was diluted with toluene to a solid concentration of 40% by weight. To 100 parts (solid content) of the aliphatic polyester, a trimethylolpropane / hexamethylene diisocyanate adduct (“Coronate HL” manufactured by Nippon Polyurethane KK) was used as a crosslinking agent.
Two parts (solid content) were added to obtain an adhesive composition. This pressure-sensitive adhesive composition is applied to a 38 μm-thick stretched polypropylene film support by an applicator and dried at 120 ° C. for 3 minutes to form a 50 μm-thick pressure-sensitive adhesive layer. A high-purity adhesive tape was produced.
【００２０】実施例２ 四つ口セパラブルフラスコに、攪拌機、温度計および水
分離管を付し、ポリカ―ボネ―トジオ―ル〔ダイセル化
学（株）製の「ＰＬＡＣＣＥＬ ＣＤ２２０ＰＬ」、水
酸基価：５６．１ＫＯＨmg／ｇ〕２５０ｇ、アゼライン
酸２３．５ｇ、触媒としてのＤＢＴＯを６２mg仕込み、
反応水排出溶剤としての少量のトルエンの存在下、攪拌
を開始剤しながら１８０℃まで昇温し、この温度で保持
した。しばらくすると、水の流出分離が認められ、反応
が進行しはじめた。約２５時間反応を続けて、重量平均
分子量が７８，０００の脂肪族ポリエステルを得た。Example 2 A four-necked separable flask was equipped with a stirrer, a thermometer, and a water separation tube. Polycarbonatediol ["PLACCEL CD220PL" manufactured by Daicel Chemical Industries, Ltd., hydroxyl value: 56 .1 KOH mg / g] 250 g, azelaic acid 23.5 g, DBTO as a catalyst 62 mg,
In the presence of a small amount of toluene as a reaction water discharge solvent, the temperature was raised to 180 ° C. while stirring was started, and maintained at this temperature. After a while, water separation was observed, and the reaction began to proceed. The reaction was continued for about 25 hours to obtain an aliphatic polyester having a weight average molecular weight of 78,000.
【００２１】この脂肪族ポリエステルをトルエンで固形
分濃度４０重量％に希釈した。これに、脂肪族ポリエス
テル１００部（固形分）に対し、架橋剤としてトリメチ
ロ―ルプロパン／トリレンジイソシアネ―ト付加物〔日
本ポリウレタン（株）製の「コロネ―トＬ」）１．５部
（固形分）を加えて、粘着剤組成物とした。この粘着剤
組成物を、アプリケ―タにより、厚さが３８μｍのポリ
イミドフイルムからなる支持体上に塗布し、１３０℃で
３分間乾燥して、厚さが５０μｍの粘着剤層を形成し、
高純度粘着テ―プを作製した。The aliphatic polyester was diluted with toluene to a solid concentration of 40% by weight. To 100 parts (solid content) of the aliphatic polyester, 1.5 parts of a trimethylolpropane / tolylene diisocyanate adduct (“Coronate L” manufactured by Nippon Polyurethane Co., Ltd.) as a crosslinking agent (1.5 parts) (Solid content) to obtain an adhesive composition. This pressure-sensitive adhesive composition was applied to a 38 μm-thick polyimide film support by an applicator, and dried at 130 ° C. for 3 minutes to form a 50 μm-thick pressure-sensitive adhesive layer.
A high-purity adhesive tape was produced.
【００２２】実施例３ 架橋剤として、トリメチロ―ルプロパン／ヘキサメチレ
ンジイソシアネ―ト付加物〔日本ポリウレタン（株）製
の「コロネ―トＨＬ」〕２．５部（固形分）を使用した
以外は、実施例２と同様にして、粘着剤組成物を得た。
この粘着剤組成物を、アプリケ―タ―により、離型紙上
に塗布し、１２０℃で５分間乾燥し、厚さが５０μｍの
粘着剤層を形成した。これをコロナ処理により表面処理
したエチレン−プロピレン共重合体フイルムからなる支
持体上にラミネ―タにより貼り合わせて、上記の粘着剤
層を転写して、高純度粘着テ―プを作製した。Example 3 Except that 2.5 parts (solid content) of a trimethylolpropane / hexamethylene diisocyanate adduct (“Coronate HL” manufactured by Nippon Polyurethane Co., Ltd.) was used as a crosslinking agent. In the same manner as in Example 2, a pressure-sensitive adhesive composition was obtained.
This pressure-sensitive adhesive composition was applied on release paper by an applicator and dried at 120 ° C. for 5 minutes to form a pressure-sensitive adhesive layer having a thickness of 50 μm. This was laminated on a support made of an ethylene-propylene copolymer film surface-treated by corona treatment using a laminator, and the above-mentioned pressure-sensitive adhesive layer was transferred to prepare a high-purity pressure-sensitive adhesive tape.
【００２３】比較例１ アクリル酸ブチル９５部とアクリル酸５部との混合物
に、トルエン１５０部とアゾビスイソブチロニトリル
０．１部とを加え、窒素雰囲気中、６０℃で約７時間溶
液重合して、ポリマ―溶液を得た。これに、ポリマ―１
００部（固形分）に対して、架橋剤としてトリメチロ―
ルプロパン／トリレンジイソシアネ―ト付加物〔日本ポ
リウレタン（株）製の「コロネ―トＬ」〕２部（固形
分）を加えて、粘着剤組成物とした。これを、アプリケ
―タ―により、厚さが３８μｍのポリエチレンテレフタ
レ―トフイルムからなる支持体上に塗布し、１３０℃で
５分間乾燥して、厚さが５０μｍの粘着剤層を形成し、
粘着テ―プを作製した。COMPARATIVE EXAMPLE 1 To a mixture of 95 parts of butyl acrylate and 5 parts of acrylic acid, 150 parts of toluene and 0.1 part of azobisisobutyronitrile were added, and a solution was added at 60 ° C. for about 7 hours in a nitrogen atmosphere. Polymerization yielded a polymer solution. In addition, Polymer-1
With respect to 00 parts (solid content), trimethylo-
2 parts (solid content) of a propane / tolylene diisocyanate adduct [“Coronate L” manufactured by Nippon Polyurethane Co., Ltd.] was added to obtain an adhesive composition. This was coated on a support made of polyethylene terephthalate film having a thickness of 38 μm by an applicator, and dried at 130 ° C. for 5 minutes to form an adhesive layer having a thickness of 50 μm.
An adhesive tape was produced.
【００２４】上記の実施例１〜３の高純度粘着テ―プお
よび比較例１の粘着テ―プについて、以下の方法によ
り、加熱発生ガス量の測定および接着力の測定を行つ
た。これらの結果は、下記の表１に示されるとおりであ
つた。With respect to the high-purity pressure-sensitive adhesive tapes of Examples 1 to 3 and the pressure-sensitive adhesive tape of Comparative Example 1, the amount of heat generated gas and the adhesive force were measured by the following methods. These results were as shown in Table 1 below.
【００２５】＜加熱発生ガス量の測定＞粘着テ―プより
１０cm2 の大きさの試料を採取し、粘着面を開放状態に
して、容量２１．５mlのバイアル瓶に入れて密栓し、ヘ
ツドスペ―スオ―トサンプラにより、１００℃で１時間
加熱した。加熱後、加熱状態のガス１mlをガスクロマト
グラフに注入し、ガス量（水分は除く）を測定した。<Measurement of the amount of gas generated by heating> A sample of 10 cm 2 was collected from the adhesive tape, the adhesive surface was opened, put in a vial bottle having a capacity of 21.5 ml, and hermetically sealed. The mixture was heated at 100 ° C. for 1 hour by a auto sampler. After heating, 1 ml of the heated gas was injected into the gas chromatograph, and the gas amount (excluding moisture) was measured.
【００２６】＜接着力の測定＞粘着テ―プ（幅２０mm）
を被着体としてのアクリル板（ポリメチルメタクリレ―
ト）に貼り付け、雰囲気温度２３℃、貼り付け時間３０
分、剥離速度３００mm／分の条件で、接着力を測定し
た。<Measurement of adhesive strength> Adhesive tape (width 20 mm)
Plate (polymethyl methacrylate)
G), the ambient temperature is 23 ° C, and the sticking time is 30.
The adhesive force was measured under the conditions of a peeling speed of 300 mm / min.
【００２７】 [0027]
【００２８】上記表１の結果から明らかなように、本発
明の実施例１〜３の各高純度粘着テ―プは、ガス化成分
が極めて少なく、かつ良好な接着性を有しており、半導
体、医薬品、食品の製造工程などで用いられるクリ―ン
ル―ム用として適していることがわかる。これに対し、
比較例１の粘着テ―プでは、ガス化成分が高く、上記ク
リ―ンル―ム用としては適さない。As is clear from the results in Table 1, each of the high-purity pressure-sensitive adhesive tapes of Examples 1 to 3 of the present invention has an extremely small amount of gasification components and has good adhesiveness. It can be seen that it is suitable for clean rooms used in the manufacturing processes of semiconductors, pharmaceuticals and foods. In contrast,
The adhesive tape of Comparative Example 1 has a high gasification component and is not suitable for the clean room.
【００２９】[0029]
【発明の効果】以上のように、本発明においては、１０
０℃，１時間加熱時における発生ガス量が所定値以下と
なり、かつ接着力が所定値以上となる構成としたことに
より、使用環境下での発生ガス量が少なく、かつ高い接
着力を示す、クリ―ンル―ム用として適した高純度粘着
シ―ト類を提供することができる。As described above, in the present invention, 10
A configuration in which the amount of generated gas at the time of heating at 0 ° C. for 1 hour is equal to or less than a predetermined value and the adhesive force is equal to or more than a predetermined value, shows a small amount of generated gas in a use environment and exhibits high adhesive force. High-purity adhesive sheets suitable for use in clean rooms can be provided.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 彦坂 和香 大阪府茨木市下穂積１丁目１番２号 日東 電工株式会社内 (72)発明者 日和 隆之 大阪府茨木市下穂積１丁目１番２号 日東 電工株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Waka Hikosaka 1-1-2 Shimohozumi, Ibaraki-shi, Osaka Inside Nitto Denko Corporation (72) Inventor Takayuki Hiwa 1-1-1-2 Shimohozumi, Ibaraki-shi, Osaka No. Nitto Denko Corporation
Claims (4)
し、１００℃，１時間加熱時における発生ガス量が１μ
ｇ／cm2 以下で、室温における接着力が０．６Kg／２０
mm幅以上であることを特徴とする高純度粘着シ―ト類。An adhesive layer is provided on one or both sides of a support, and the amount of gas generated when heating at 100 ° C. for 1 hour is 1 μm.
g / cm 2 or less, and the adhesion at room temperature is 0.6 kg / 20.
High-purity adhesive sheets having a width of at least mm.
着剤組成物からなる請求項１に記載の高純度粘着シ―ト
類。2. The high-purity pressure-sensitive adhesive sheet according to claim 1, wherein the pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive composition containing an aliphatic polyester.
塵紙である請求項１または２に記載の高純度粘着シ―ト
類。3. The high-purity adhesive sheet according to claim 1, wherein the support is a plastic film or dust-free paper.
項１〜３のいずれかに記載の高純度粘着シ―ト類。4. The high-purity adhesive sheet according to claim 1, which is used for a clean room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1096698A JPH11209705A (en) | 1998-01-23 | 1998-01-23 | High-purity tacky sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1096698A JPH11209705A (en) | 1998-01-23 | 1998-01-23 | High-purity tacky sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11209705A true JPH11209705A (en) | 1999-08-03 |
Family
ID=11764921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1096698A Pending JPH11209705A (en) | 1998-01-23 | 1998-01-23 | High-purity tacky sheets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11209705A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001064806A1 (en) * | 2000-03-03 | 2001-09-07 | Lintec Corporation | Pressure-sensitive adhesive sheet and covered structure |
| JP2001246697A (en) * | 2000-03-03 | 2001-09-11 | Lintec Corp | Mold release sheet and adhesive material |
| JP2002038111A (en) * | 2000-04-28 | 2002-02-06 | Lintec Corp | Adhesive sheet and adhesive body |
| JP2002196674A (en) * | 2000-12-27 | 2002-07-12 | Nitto Denko Corp | Printable adhesive body method for printing |
| JP2003003132A (en) * | 2001-06-19 | 2003-01-08 | Lintec Corp | Adhesive sheet and pasting material |
| JP2003013014A (en) * | 2001-06-27 | 2003-01-15 | Lintec Corp | Pressure-sensitive adhesive sheet and adhesive body |
| JP2004091546A (en) * | 2002-08-29 | 2004-03-25 | Lintec Corp | Adhesive member |
| WO2013122117A1 (en) * | 2012-02-14 | 2013-08-22 | 日東電工株式会社 | Thermoconductive adhesive sheet |
-
1998
- 1998-01-23 JP JP1096698A patent/JPH11209705A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001064806A1 (en) * | 2000-03-03 | 2001-09-07 | Lintec Corporation | Pressure-sensitive adhesive sheet and covered structure |
| JP2001246697A (en) * | 2000-03-03 | 2001-09-11 | Lintec Corp | Mold release sheet and adhesive material |
| EP1178095A1 (en) * | 2000-03-03 | 2002-02-06 | LINTEC Corporation | Pressure-sensitive adhesive sheet and covered structure |
| EP1178095A4 (en) * | 2000-03-03 | 2002-08-28 | Lintec Corp | Pressure-sensitive adhesive sheet and covered structure |
| US6827997B2 (en) | 2000-03-03 | 2004-12-07 | Lintec Corporation | Pressure-sensitive adhesive sheet and covered structure |
| JP5276244B2 (en) * | 2000-03-03 | 2013-08-28 | リンテック株式会社 | Sticking body |
| JP2002038111A (en) * | 2000-04-28 | 2002-02-06 | Lintec Corp | Adhesive sheet and adhesive body |
| JP2002196674A (en) * | 2000-12-27 | 2002-07-12 | Nitto Denko Corp | Printable adhesive body method for printing |
| JP2003003132A (en) * | 2001-06-19 | 2003-01-08 | Lintec Corp | Adhesive sheet and pasting material |
| JP2003013014A (en) * | 2001-06-27 | 2003-01-15 | Lintec Corp | Pressure-sensitive adhesive sheet and adhesive body |
| JP2004091546A (en) * | 2002-08-29 | 2004-03-25 | Lintec Corp | Adhesive member |
| WO2013122117A1 (en) * | 2012-02-14 | 2013-08-22 | 日東電工株式会社 | Thermoconductive adhesive sheet |
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