JPH06128539A - Pressure-sensitive adhesive tape or sheet - Google Patents
Pressure-sensitive adhesive tape or sheetInfo
- Publication number
- JPH06128539A JPH06128539A JP4276343A JP27634392A JPH06128539A JP H06128539 A JPH06128539 A JP H06128539A JP 4276343 A JP4276343 A JP 4276343A JP 27634392 A JP27634392 A JP 27634392A JP H06128539 A JPH06128539 A JP H06128539A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- sensitive adhesive
- sheet
- weight
- parts
- 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
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アクリル系粘着テープ
またはシートに関し、詳しくは湿度に影響されず、剥離
時の静電気防止性に優れ、また、粘着物性を損なうこと
のない粘着テープまたはシートに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an acrylic pressure-sensitive adhesive tape or sheet, and more particularly to a pressure-sensitive adhesive tape or sheet which is not affected by humidity, has an excellent antistatic property during peeling, and does not impair the adhesive property. .
【０００２】[0002]
【従来の技術】プラスチック材料や製品を製造したり使
用するときに、静電気が発生し易く、これが原因で爆発
事故が起きたり人体に帯電して電撃が発生するなどの問
題がある。粘着テープまたはシート（以下、粘着テープ
と総称する）においても、使用時にこれを剥離紙あるい
は基材背面から剥離するとき、粘着テープに静電気が発
生して人体に帯電し、上記のような問題が発生すること
がある。上記の問題を解決するために、粘着テープの基
材に導電性のカーボンを練り込む方法（特開昭６３−９
９８２８号公報参照）、基材表面にイオン系、非イオン
系等の帯電防止剤を塗布する方法（実開昭６３−１３１
７３７号公報参照）等が知られており、広く実施されて
いる。2. Description of the Related Art Static electricity is liable to be generated when a plastic material or product is manufactured or used, and there is a problem that an explosion accident occurs or a human body is electrically charged and an electric shock is generated. Even in the case of adhesive tapes or sheets (hereinafter collectively referred to as adhesive tapes), when the adhesive tape or sheet is peeled off from the release paper or the back surface of the substrate during use, static electricity is generated on the adhesive tape and the human body is charged, and the above-mentioned problems occur. May occur. In order to solve the above problems, a method of kneading conductive carbon into a base material of an adhesive tape (Japanese Patent Laid-Open No. 63-9).
9828), a method of applying an ionic or nonionic antistatic agent to the surface of the base material (Actual No. Sho 63-131).
(See Japanese Patent No. 737), etc., are widely known and widely practiced.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記導
電性カーボンを基材に練り込む方法では、基材の色が黒
色となり、粘着テープの色の選択を自由にすることがで
きず、また十分な静電気防止性を発現させるために相当
量の導電性カーボンの練り込みを必要とし、このために
基材の強度が低下して、使用に耐えうる粘着テープを作
製することが困難であった。また、帯電防止剤を基材表
面に塗布する方法では、湿度の影響を受け易く、冬場の
低湿度下では静電気を十分に防止することが困難であ
る。また、アクリル系粘着剤中に上記帯電防止剤を配合
することも考えられるが、帯電防止剤が粘着剤表面にブ
リードして粘着物性を著しく低下させるため、実用面か
らこの方法を使用することは困難であった。However, in the method of kneading the conductive carbon into the base material, the color of the base material becomes black, and the color of the adhesive tape cannot be freely selected. It is necessary to knead a considerable amount of conductive carbon in order to develop the antistatic property, and the strength of the base material is lowered, and it is difficult to produce an adhesive tape that can be used. In addition, the method of applying the antistatic agent to the surface of the substrate is easily affected by humidity, and it is difficult to sufficiently prevent static electricity under low humidity in winter. It is also conceivable to mix the above antistatic agent in an acrylic pressure-sensitive adhesive, but since the antistatic agent bleeds onto the pressure-sensitive adhesive surface and significantly reduces the adhesive physical properties, it is not possible to use this method from a practical viewpoint. It was difficult.
【０００４】本発明の目的は、上記の如き問題を解消
し、環境湿度に影響されず、剥離時の静電気防止性に優
れ、また、粘着物性を損なうことのない静電気の防止性
に優れる粘着テープまたはシートを提供することであ
る。An object of the present invention is to solve the above problems, to prevent the influence of environmental humidity, to have excellent antistatic properties during peeling, and to have excellent antistatic properties without impairing the adhesive physical properties. Or to provide a sheet.
【０００５】[0005]
【課題を解決するための手段】本発明者は、上記課題を
達成すべく種々検討した結果、アクリル系粘着剤にポリ
エーテルポリオール化合物およびアルカリ金属塩を配合
することにより、粘着剤が湿度に影響されたり、粘着物
性が損なわれたりすることが大幅に抑制されるととも
に、優れた静電気防止性を示すことを見出し、本発明を
完成した。即ち、本発明の粘着テープまたはシートは、
アクリル系粘着剤にポリエーテルポリオール化合物およ
び少なくとも一種のアルカリ金属塩を配合してなる粘着
剤層を有してなるものであって、望ましくは、上記ポリ
エーテルポリオール化合物が、４０００以下の重量平均
分子量を有し、上記アルカリ金属塩が、Ｌｉ，Ｎａ，
Ｋ，Ｍｇ，Ｃａよりなるカチオンと、Ｃｌ，Ｂｒ，Ｉ，
ＢＦ4 ，ＰＦ6 ，ＣｌＯ4 ，ＮＯ3 ，ＣＯ3 よりなるア
ニオンとからそれぞれ選ばれる一種のイオンを組合せて
なるもので、さらに望ましくは、上記粘着剤層が、アク
リル系粘着剤１００重量部に、ポリエーテルポリオール
化合物５〜４０重量部およびアルカリ金属塩０．１〜５
重量部を配合してなるものである。Means for Solving the Problems As a result of various studies to achieve the above object, the present inventor has found that by adding a polyether polyol compound and an alkali metal salt to an acrylic pressure-sensitive adhesive, the pressure-sensitive adhesive affects humidity. The present invention has been completed by finding that it is significantly suppressed from being damaged or the adhesive property is impaired and exhibits excellent antistatic property. That is, the adhesive tape or sheet of the present invention,
A pressure-sensitive adhesive layer comprising an acrylic pressure-sensitive adhesive compounded with a polyether polyol compound and at least one alkali metal salt, wherein the polyether polyol compound preferably has a weight average molecular weight of 4000 or less. And the alkali metal salt is Li, Na,
Cation consisting of K, Mg, Ca, Cl, Br, I,
A combination of one kind of ion selected from anions consisting of BF 4 , PF 6 , ClO 4 , NO 3 , and CO 3 , and more preferably, the adhesive layer comprises 100 parts by weight of an acrylic adhesive. , 5 to 40 parts by weight of polyether polyol compound and 0.1 to 5 of alkali metal salt
It is made by blending parts by weight.
【０００６】以下、本発明をさらに詳細に説明する。上
記アクリル系粘着剤としては、アクリル系モノマーを使
用した重合物が使用でき、例えばアクリル酸モノマーと
アクリル酸２−エチルヘキシルモノマーの共重合物およ
びその架橋物、アクリル酸モノマーとアクリル酸ブチル
モノマーの共重合物およびその架橋物、アクリル酸エチ
ルモノマーとアクリル酸２−エチルヘキシルモノマーと
メチルメタクリル酸モノマーとアクリル酸２−ヒドロキ
シエチルモノマーとの共重合物およびその架橋物等が挙
げられる。これらのアクリル系粘着剤には粘着力を調整
する目的で、粘着付与剤あるいは界面活性剤などを適宜
加えることができる。The present invention will be described in more detail below. As the acrylic pressure-sensitive adhesive, a polymer using an acrylic monomer can be used. For example, a copolymer of an acrylic acid monomer and 2-ethylhexyl acrylate monomer and a cross-linked product thereof, a copolymer of an acrylic acid monomer and a butyl acrylate monomer. Examples thereof include a polymer and a crosslinked product thereof, a copolymer of an ethyl acrylate monomer, a 2-ethylhexyl acrylate monomer, a methylmethacrylic acid monomer and a 2-hydroxyethyl acrylate monomer, and a crosslinked product thereof. A tackifier or a surfactant can be added to these acrylic pressure-sensitive adhesives for the purpose of adjusting the adhesive strength.
【０００７】上記ポリエーテルポリオール化合物は、分
子中のエーテル結合が、アルカリ金属と錯体を形成し、
粘着剤に導電性を付与するものである。このポリエーテ
ルポリオール化合物としては、重量平均分子量が４００
０以下のもの、好ましくは２００〜１０００のものが好
適に使用できる。具体的には、商品名サンニックス（三
洋化成工業社製）のＰＰ−４００，ＰＰ−１０００，Ｐ
Ｐ−２０００，ＧＰ−４００，ＧＰ−６００，ＴＰ−４
００等が使用できる。なお、ポリエーテルポリオール化
合物の重量平均分子量が４０００を越えると、経時によ
ってアクリル系粘着剤中でアルカリ金属塩が結晶化し、
粘着剤の表面固有抵抗値が上昇するので、安定な粘着テ
ープを作製することが困難になり好ましくない。In the above polyether polyol compound, the ether bond in the molecule forms a complex with an alkali metal,
It imparts conductivity to the adhesive. This polyether polyol compound has a weight average molecular weight of 400
Those of 0 or less, preferably 200 to 1000 can be suitably used. Specifically, PP-400, PP-1000, P of trade name Sannix (manufactured by Sanyo Chemical Industry Co., Ltd.)
P-2000, GP-400, GP-600, TP-4
00 etc. can be used. When the weight average molecular weight of the polyether polyol compound exceeds 4000, the alkali metal salt crystallizes in the acrylic pressure-sensitive adhesive over time,
Since the surface specific resistance of the pressure-sensitive adhesive increases, it is difficult to produce a stable pressure-sensitive adhesive tape, which is not preferable.
【０００８】上記ポリエーテルポリオール化合物は、ア
クリル系粘着剤１００重量部に対し、５〜４０重量部、
好ましくは１０〜３０重量部、より好ましくは１５〜２
５重量部を配合する。ポリエーテルポリオール化合物の
配合量が５重量部未満の場合、アクリル系粘着剤表面の
表面固有抵抗値が１．０×１０12Ωを越え、十分な静電
気防止性を得ることが困難になり、一方、４０重量部を
越える場合、粘着物性が著しく低下し、粘着テープとし
ての接着性に問題が生じて好ましくない。The above polyether polyol compound is used in an amount of 5 to 40 parts by weight, based on 100 parts by weight of the acrylic adhesive.
Preferably 10 to 30 parts by weight, more preferably 15 to 2
Add 5 parts by weight. If the blending amount of the polyether polyol compound is less than 5 parts by weight, the surface specific resistance value of the acrylic pressure-sensitive adhesive surface exceeds 1.0 × 10 12 Ω, and it becomes difficult to obtain sufficient antistatic property. If the amount exceeds 40 parts by weight, the adhesive properties are remarkably deteriorated and the adhesiveness of the adhesive tape becomes problematic.
【０００９】一方、アルカリ金属塩としては、Ｌｉ，Ｎ
ａ，Ｋ，Ｍｇ，Ｃａよりなるカチオンと、Ｃｌ，Ｂｒ，
Ｉ，ＢＦ4 ，ＰＦ6 ，ＣｌＯ4 ，ＮＯ3 ，ＣＯ3 よりな
るアニオンとからそれぞれ選ばれる一種のイオンを組合
せてなるものが使用でき、特にイオン伝導性に優れ静電
気防止機能に優れるＬｉＣｌＯ4 が好適に使用できる。On the other hand, alkali metal salts include Li, N
Cation consisting of a, K, Mg, Ca, Cl, Br,
ICl, BF 4 , PF 6 , ClO 4 , NO 3 , and CO 3 can be used in combination with one kind of ion selected from the respective anions, and LiClO 4 is particularly excellent in ion conductivity and antistatic function. It can be preferably used.
【００１０】上記アルカリ金属塩は、アクリル系粘着剤
１００重量部に対し、０．１〜５重量部、好ましくは
０．５〜２．５重量部、より好ましくは０．８〜１．５
重量部配合する。このアルカリ金属塩の配合量が、０．
１重量部未満の場合、粘着剤の表面固有抵抗値が１．０
×１０12Ωを越えて十分な静電気防止性を得ることが困
難になり、一方、５重量部を越える場合、保存時にアク
リル系粘着剤中でアルカリ金属塩が結晶化し、安定性の
面で問題を生じるため好ましくない。The above-mentioned alkali metal salt is 0.1 to 5 parts by weight, preferably 0.5 to 2.5 parts by weight, and more preferably 0.8 to 1.5 parts with respect to 100 parts by weight of the acrylic adhesive.
Add parts by weight. The blending amount of the alkali metal salt is 0.
If the amount is less than 1 part by weight, the surface resistivity of the adhesive is 1.0
It becomes difficult to obtain sufficient antistatic property in excess of × 10 12 Ω. On the other hand, when it exceeds 5 parts by weight, the alkali metal salt is crystallized in the acrylic adhesive during storage, which causes a problem in stability. Is not preferable because it causes
【００１１】上記粘着剤組成物は、粘着剤の溶液に直接
ポリエーテルポリオール化合物とアルカリ金属塩の溶液
とを投入し、プロペラ攪拌機あるいはディスパー攪拌機
等で十分に混合して粘着剤に調製される。The above-mentioned pressure-sensitive adhesive composition is prepared by directly adding a polyether polyol compound and a solution of an alkali metal salt to a solution of the pressure-sensitive adhesive and thoroughly mixing them with a propeller stirrer or a disper stirrer.
【００１２】本発明の粘着テープまたはシートは、上記
粘着剤を基材の少なくとも片面の最表層に被覆して得ら
れる。上記基材としては、通常の粘着テープまたはシー
トに使用されているものであればよく、例えばコロナ処
理を行ったポリエチレンラミネート紙、ポリエチレンフ
ィルム、ポリエチレンテレフタレートフィルム、ポリプ
ロピレンフィルム等の紙あるいはプラスチックフィルム
が挙げられる。なお、本発明は、電気絶縁性の基材に上
記特定の粘着剤を被覆して剥離時の静電気防止に優れる
粘着テープまたはシートを提供するものであるが、勿
論、基材としてアルミ箔、銀箔等の導電性の金属箔を使
用しても何ら差し支えない。The pressure-sensitive adhesive tape or sheet of the present invention can be obtained by coating the pressure-sensitive adhesive on the outermost surface layer of at least one surface of a substrate. The base material may be one that is used for ordinary pressure-sensitive adhesive tapes or sheets, and examples thereof include corona-treated polyethylene laminated paper, polyethylene film, polyethylene terephthalate film, polypropylene film and other papers or plastic films. To be Incidentally, the present invention provides an adhesive tape or sheet excellent in preventing static electricity at the time of peeling by coating the above-mentioned specific adhesive on an electrically insulating substrate, but of course, aluminum foil, silver foil as the substrate. There is no problem even if a conductive metal foil such as is used.
【００１３】本発明で用いる粘着剤の被覆方法は、通常
の粘着テープまたはシートの製造に使用される方法がそ
のまま適用でき、例えばグラビアコーティング、ロール
コーティング、リバースコーティング、ディップコーテ
ィング、流し塗り、刷毛塗り等の方法が挙げられる。As the method for coating the pressure-sensitive adhesive used in the present invention, the method used in the production of a usual pressure-sensitive adhesive tape or sheet can be applied as it is, for example, gravure coating, roll coating, reverse coating, dip coating, flow coating, brush coating. And the like.
【００１４】本発明では、上記被覆した粘着剤層を必要
に応じて加熱乾燥して、それに含有される溶剤を除去
し、使用用途に応じて厚さを調整して粘着剤層を形成す
る。In the present invention, the coated pressure-sensitive adhesive layer is heated and dried as necessary to remove the solvent contained therein, and the thickness is adjusted according to the intended use to form the pressure-sensitive adhesive layer.
【００１５】本発明の粘着テープまたはシートは、上記
粘着剤層保護のために、その表面にこの粘着剤層と実質
的に接着しない、例えばシリコン処理、フッ素樹脂処理
層を形成した剥離紙等を重合させるか、あるいはロール
状に巻いて製品とする。The pressure-sensitive adhesive tape or sheet of the present invention comprises, for the purpose of protecting the pressure-sensitive adhesive layer, a release paper or the like which is not substantially adhered to the pressure-sensitive adhesive layer on the surface thereof, for example, a silicon treatment or a fluororesin treatment layer is formed. The product is polymerized or rolled into a product.
【００１６】[0016]
【作用】上記粘着テープまたはシートの構成によれば、
粘着剤にポリエーテルポリオール化合物とアルカリ金属
塩とを配合したことにより、粘着剤はイオン伝導性が良
好となり静電気防止機能を具備するようになる。したが
って、粘着テープまたはシートは、環境湿度に影響され
ず、剥離時の静電気防止性に優れ、また、粘着物性を損
なうことのない静電気の防止性に優れるものとできる。According to the constitution of the above-mentioned adhesive tape or sheet,
By blending the polyether polyol compound and the alkali metal salt in the pressure-sensitive adhesive, the pressure-sensitive adhesive has good ionic conductivity and has an antistatic function. Therefore, the pressure-sensitive adhesive tape or sheet is not affected by environmental humidity, has excellent antistatic properties when peeled, and also has excellent antistatic properties that do not impair the adhesive physical properties.
【００１７】[0017]
【実施例】以下、本発明の一実施例を示し具体的に説明
する。なお、本発明がこの実施例に限定されるものでな
いことはいうまでもない。 実施例１ アクリル酸エチルモノマーとアクリル酸２−エチルヘキ
シルとの共重合物を、イソシアネート系架橋剤（商品名
コロネートＬ、日本ポリウレタン工業社製）で架橋させ
てなるアクリル系粘着剤（Ｉ）１００重量部をトルエン
５００重量部に溶解させ、これに重量平均分子量４００
のポリエーテルポリオール（商品名サンニックスＰＰ−
４００、三洋化成工業社製）１０重量部および過塩素酸
リチウム０．５重量部を加えて十分に混合した後、混合
物をポリエチレンテレフタレートシート上に流延させ、
ついで１００℃の高温熱風乾燥機中で５分間乾燥させ、
厚さ２０μｍの粘着剤層を形成した粘着シートを得た。EXAMPLE An example of the present invention will be described below in detail. Needless to say, the present invention is not limited to this embodiment. Example 1 100 weight of acrylic pressure-sensitive adhesive (I) obtained by crosslinking a copolymer of ethyl acrylate monomer and 2-ethylhexyl acrylate with an isocyanate crosslinking agent (trade name Coronate L, manufactured by Nippon Polyurethane Industry Co., Ltd.) Parts are dissolved in 500 parts by weight of toluene, and a weight average molecular weight of 400 is
Polyether polyol (trade name Sannix PP-
400, manufactured by Sanyo Kasei Kogyo Co., Ltd.) and 0.5 parts by weight of lithium perchlorate were added and mixed sufficiently, and then the mixture was cast on a polyethylene terephthalate sheet,
Then, dry in a high temperature hot air dryer at 100 ° C for 5 minutes,
A pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer having a thickness of 20 μm was obtained.
【００１８】実施例２ 実施例１のアクリル系粘着剤（Ｉ）１００重量部をトル
エン５００重量部に溶解させ、重量平均分子量４０００
のポリエーテルポリオール（商品名サンニックスＧＰ−
４０００、三洋化成工業社製）３０重量部および過塩素
酸リチウム２．５重量部を加えて十分に混合した後、混
合物をポリエチレンテレフタレートシート上に流延さ
せ、ついで１００℃の高温熱風乾燥機中で５分間乾燥さ
せ、厚さ２０μｍの粘着剤層を形成した粘着シートを得
た。Example 2 100 parts by weight of the acrylic pressure-sensitive adhesive (I) of Example 1 was dissolved in 500 parts by weight of toluene to give a weight average molecular weight of 4000.
Polyether polyol (trade name Sannix GP-
4000 parts, manufactured by Sanyo Kasei Kogyo Co., Ltd.) and 2.5 parts by weight of lithium perchlorate were added and thoroughly mixed, and then the mixture was cast on a polyethylene terephthalate sheet, and then in a high temperature hot air dryer at 100 ° C. And dried for 5 minutes to obtain a pressure-sensitive adhesive sheet on which a pressure-sensitive adhesive layer having a thickness of 20 μm was formed.
【００１９】実施例３ アクリル酸エチルモノマーとアクリル酸２−エチルヘキ
シルモノマーとメチルメタクリル酸モノマーとアクリル
酸２−ヒドロキシエチルモノマーとの共重合物を、イソ
シアネート系架橋剤（商品名コロネートＬ、日本ポリウ
レタン工業社製）で架橋させてなるアクリル系粘着剤
（II）１００重量部をトルエン５００重量部に溶解さ
せ、重量平均分子量１０００のポリエーテルポリオール
（商品名サンニックスＰＰ−１０００、三洋化成工業社
製）２０重量部および過塩素酸リチウム１．５重量部を
加えて十分に混合した後、混合物をポリエチレンテレフ
タレートシート上に流延させ、ついで１００℃の高温熱
風乾燥機中で５分間乾燥させ、厚さ２０μｍの粘着剤層
を形成した粘着シートを得た。Example 3 A copolymer of ethyl acrylate monomer, 2-ethylhexyl acrylate monomer, methyl methacrylic acid monomer and 2-hydroxyethyl acrylate monomer was used as an isocyanate crosslinking agent (trade name Coronate L, Nippon Polyurethane Industry Co., Ltd.). 100 parts by weight of an acrylic pressure-sensitive adhesive (II) crosslinked with 500 parts by weight of toluene is dissolved, and a polyether polyol having a weight average molecular weight of 1000 (product name: Sannix PP-1000, manufactured by Sanyo Chemical Industry Co., Ltd.) After adding 20 parts by weight and 1.5 parts by weight of lithium perchlorate and thoroughly mixing, the mixture was cast on a polyethylene terephthalate sheet and then dried in a high temperature hot air dryer at 100 ° C. for 5 minutes to obtain a thickness. An adhesive sheet having a 20 μm adhesive layer formed thereon was obtained.
【００２０】比較例１ 上記実施例１において、ポリエーテルポリオールおよび
過塩素酸リチウムを配合しない以外は全て同様にして粘
着シートを得た。Comparative Example 1 An adhesive sheet was obtained in the same manner as in Example 1 except that the polyether polyol and lithium perchlorate were not added.
【００２１】比較例２ 上記実施例１において、粘着剤として、エチレン−酢酸
ビニル共重合物と粘着付与剤（商品名ＰＲ−１２６０３
Ｎ、住友デュレス社製）の当量混合物粘着剤（III)を使
用する以外は全て同様にして粘着シートを得た。Comparative Example 2 In the above Example 1, as an adhesive, an ethylene-vinyl acetate copolymer and a tackifier (trade name PR-12603) were used.
A pressure-sensitive adhesive sheet was obtained in the same manner except that an equivalent mixture pressure-sensitive adhesive (III) of N. Sumitomo Durres) was used.
【００２２】比較例３ 上記実施例１において、ポリエーテルポリオールとして
重量平均分子量４５００のもの（商品名サンニックスＴ
Ｌ−４５００Ｎ、三洋化成工業社製）に替えて使用する
以外は全て同様にして粘着シートを得た。Comparative Example 3 In the above Example 1, the polyether polyol having a weight average molecular weight of 4500 (trade name: Sannix T
L-4500N, manufactured by Sanyo Kasei Kogyo Co., Ltd.) was used in the same manner except that a pressure-sensitive adhesive sheet was obtained.
【００２３】実施例４ 実施例３のアクリル系粘着剤（II）１００重量部をトル
エン５００重量部に溶解させ、重量平均分子量１０００
のポリエーテルポリオール（商品名サンニックスＰＰ−
１０００、三洋化成工業社製）３５重量部および過塩素
酸リチウム０．５重量部を加えて十分に混合した後、混
合物をポリエチレンテレフタレートシート上に流延さ
せ、ついで１００℃の高温熱風乾燥機中で５分間乾燥さ
せ、厚さ２０μｍの粘着剤層を形成した粘着シートを得
た。Example 4 100 parts by weight of the acrylic pressure-sensitive adhesive (II) of Example 3 was dissolved in 500 parts by weight of toluene to give a weight average molecular weight of 1000.
Polyether polyol (trade name Sannix PP-
1000 parts, manufactured by Sanyo Kasei Co., Ltd.) and 0.5 parts by weight of lithium perchlorate were added and mixed sufficiently, and the mixture was cast on a polyethylene terephthalate sheet, and then in a high temperature hot air dryer at 100 ° C. And dried for 5 minutes to obtain a pressure-sensitive adhesive sheet on which a pressure-sensitive adhesive layer having a thickness of 20 μm was formed.
【００２４】実施例５ 実施例３のアクリル系粘着剤（II）１００重量部をトル
エン５００重量部に溶解させ、重量平均分子量１０００
のポリエーテルポリオール（商品名サンニックスＰＰ−
１０００、三洋化成工業社製）７重量部および過塩素酸
リチウム４．５重量部を加えて十分に混合した後、混合
物をポリエチレンテレフタレートシート上に流延させ、
ついで１００℃の高温熱風乾燥機中で５分間乾燥させ、
厚さ２０μｍの粘着剤層を形成した粘着シートを得た。Example 5 100 parts by weight of the acrylic pressure-sensitive adhesive (II) of Example 3 was dissolved in 500 parts by weight of toluene to give a weight average molecular weight of 1000.
Polyether polyol (trade name Sannix PP-
1000 parts, manufactured by Sanyo Kasei Kogyo Co., Ltd.) and 4.5 parts by weight of lithium perchlorate were added and mixed thoroughly, and then the mixture was cast onto a polyethylene terephthalate sheet,
Then, dry in a high temperature hot air dryer at 100 ° C for 5 minutes,
A pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer having a thickness of 20 μm was obtained.
【００２５】比較例４ 上記実施例１において、ポリエーテルポリオールの配合
量を５０重量部とする以外は全て同様にして粘着シート
を得た。Comparative Example 4 An adhesive sheet was obtained in the same manner as in Example 1 except that the blending amount of the polyether polyol was 50 parts by weight.
【００２６】比較例５ 上記実施例１において、ポリエーテルポリオールの配合
量を３重量部とする以外は全て同様にして粘着シートを
得た。Comparative Example 5 An adhesive sheet was obtained in the same manner as in Example 1 except that the blending amount of the polyether polyol was 3 parts by weight.
【００２７】比較例６ 上記実施例１において、アルカリ金属塩の配合量を７重
量部とする以外は全て同様にして粘着シートを得た。Comparative Example 6 A pressure-sensitive adhesive sheet was obtained in the same manner as in Example 1 except that the amount of the alkali metal salt compounded was 7 parts by weight.
【００２８】比較例７ 上記実施例１において、アルカリ金属塩の配合量を０．
０５重量部とする以外は全て同様にして粘着シートを得
た。Comparative Example 7 In the above-mentioned Example 1, the amount of the alkali metal salt added was 0.
An adhesive sheet was obtained in the same manner except that the amount was 05 parts by weight.
【００２９】（粘着シートの性能試験）上記実施例１〜
５および比較例１〜７で得られる各粘着シートについ
て、その表面固有抵抗、剥離帯電圧、粘着感を次に示す
方法で測定したところ、表１の結果が得られた。 表面固有抵抗：試料を１０cm×１０cmに調製し、粘着面
の表面固有抵抗を測定した。なお、表面固有抵抗は、
（株）アドバンテスト社製ハイメグオームメーターＴＲ
−８６０１の超高抵抗測定用試料箱ＴＲ−４２を用い、
２３℃×６０％ＲＨの条件下で、１００Ｖの直流電圧を
１分間印加して測定した。 剥離帯電圧 ：試料を１０cm×３０cmに調製し、粘着面
をポリエチレンテレフタレートフィルムに貼り合わせた
後、これを１分間に６００cmの速度で剥離したときの粘
着テープ側の剥離帯電圧を測定した。なお、剥離帯電圧
は、春日電気社製デジタル静電電位測定機を用い、２３
℃×６０％ＲＨの条件下で測定した。 粘 着 感 ：各試料の粘着面を指で触り、以下の基準
で判定した。 ○……粘着力あり、×……粘着力無し ただし、上記判定は、２０歳代の男性１０名、女性１０
名、計２０名の判定の平均で示した。(Performance Test of Adhesive Sheet) Examples 1 to 1 above
The surface resistivity, peeling electrification voltage, and tackiness of each pressure-sensitive adhesive sheet obtained in Example 5 and Comparative Examples 1 to 7 were measured by the following methods, and the results shown in Table 1 were obtained. Surface resistivity: A sample was prepared in a size of 10 cm × 10 cm, and the surface resistivity of the adhesive surface was measured. The surface resistivity is
Hi-Meg ohm meter TR manufactured by Advantest Corporation
Using the ultra-high resistance measurement sample box TR-42 of -8601,
The measurement was performed by applying a DC voltage of 100 V for 1 minute under the condition of 23 ° C. × 60% RH. Peeling electrification voltage: A sample was prepared in a size of 10 cm × 30 cm, the adhesive surface was attached to a polyethylene terephthalate film, and the peeling electrification voltage on the adhesive tape side was measured when the sample was peeled at a speed of 600 cm for 1 minute. The peeling electrification voltage was 23 using a digital electrostatic potential measuring device manufactured by Kasuga Electric Co., Ltd.
It was measured under the condition of ° C x 60% RH. Stickiness: The adhesive surface of each sample was touched with a finger and judged according to the following criteria. ○: Adhesive, ×: No adhesive
The average of 20 people in total was shown.
【００３０】[0030]
【表１】 [Table 1]
【００３１】[0031]
【発明の効果】以上詳述したように、本発明の粘着テー
プまたはシートは、アクリル系粘着剤にポリエーテルポ
リオール化合物および少なくとも一種のアルカリ金属塩
を配合した粘着剤を用いるので、粘着剤にイオン伝導性
が付与され、粘着テープまたはシートを剥離する時に発
生する静電気が速やかに中和されるため、粘着剤は湿度
に影響されたり、粘着物性が損なわれたりすることが大
幅に抑制されるようになるとともに、粘着剤はイオン伝
導性が良好となり静電気防止機能を具備するようにな
る。したがって、粘着テープまたはシートは、環境湿度
に影響されず、剥離時の静電気防止性に優れ、また、粘
着物性を損なうことのない静電気の防止性に優れるもの
とできる。As described in detail above, the pressure-sensitive adhesive tape or sheet of the present invention uses an acrylic pressure-sensitive adhesive containing a polyether polyol compound and at least one alkali metal salt. Since the conductivity is imparted and the static electricity generated when peeling the adhesive tape or sheet is quickly neutralized, it is possible to significantly suppress the influence of humidity on the adhesive and the deterioration of the adhesive physical properties. At the same time, the adhesive has good ionic conductivity and has an antistatic function. Therefore, the pressure-sensitive adhesive tape or sheet is not affected by environmental humidity, has excellent antistatic properties when peeled, and also has excellent antistatic properties that do not impair the adhesive physical properties.
Claims (5)
ール化合物および少なくとも１種のアルカリ金属塩を配
合してなる粘着剤層を有してなる粘着テープまたはシー
ト。1. A pressure-sensitive adhesive tape or sheet comprising a pressure-sensitive adhesive layer comprising an acrylic pressure-sensitive adhesive compounded with a polyether polyol compound and at least one alkali metal salt.
量部に、ポリエーテルポリオール化合物５〜４０重量部
および少なくとも１種のアルカリ金属塩０．１〜５重量
部配合してなるものである請求項１記載の粘着テープま
たはシート。2. The adhesive layer comprises 100 parts by weight of an acrylic adhesive and 5 to 40 parts by weight of a polyether polyol compound and 0.1 to 5 parts by weight of at least one alkali metal salt. The adhesive tape or sheet according to claim 1.
０8 Ω〜１．０×１０12Ωの表面固有抵抗値を有するも
のである請求項１記載の粘着テープまたはシート。3. The adhesive tape or sheet is 1.0 × 1.
The pressure-sensitive adhesive tape or sheet according to claim 1, which has a surface specific resistance value of 0 8 Ω to 1.0 × 10 12 Ω.
００以下の重量平均分子量を有するものである請求項１
ないし３記載の粘着テープまたはシート。4. The polyether polyol compound is 40
A polymer having a weight average molecular weight of 00 or less.
4. The adhesive tape or sheet according to 3).
ｇ，Ｃａよりなるカチオンと、Ｃｌ，Ｂｒ，Ｉ，Ｂ
Ｆ4 ，ＰＦ6 ，ＣｌＯ4 ，ＮＯ3 ，ＣＯ3 よりなるアニ
オンとからそれぞれ選ばれる一種のイオンを組合せてな
るものである請求項１ないし３記載の粘着テープまたは
シート。5. The alkali metal salt is Li, Na, K, M.
Cation consisting of g and Ca, Cl, Br, I, B
F 4, PF 6, pressure-sensitive adhesive tape or sheet of ClO 4, NO 3, claims 1 is made by combining one type of ions selected from each of the anion from CO 3 3 described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27634392A JP3190743B2 (en) | 1992-10-14 | 1992-10-14 | Adhesive tape or sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27634392A JP3190743B2 (en) | 1992-10-14 | 1992-10-14 | Adhesive tape or sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06128539A true JPH06128539A (en) | 1994-05-10 |
| JP3190743B2 JP3190743B2 (en) | 2001-07-23 |
Family
ID=17568115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27634392A Expired - Lifetime JP3190743B2 (en) | 1992-10-14 | 1992-10-14 | Adhesive tape or sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3190743B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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