JPH0598222A - Pressure-sensitive adhesive tape and its production - Google Patents
Pressure-sensitive adhesive tape and its productionInfo
- Publication number
- JPH0598222A JPH0598222A JP28717591A JP28717591A JPH0598222A JP H0598222 A JPH0598222 A JP H0598222A JP 28717591 A JP28717591 A JP 28717591A JP 28717591 A JP28717591 A JP 28717591A JP H0598222 A JPH0598222 A JP H0598222A
- Authority
- JP
- Japan
- Prior art keywords
- sensitive adhesive
- pressure
- water
- emulsifier
- adhesive tape
- 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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、接着力と保持力と耐水
性に優れるアクリル系の感圧接着テープに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an acrylic pressure-sensitive adhesive tape having excellent adhesive strength, holding strength and water resistance.
【０００２】[0002]
【従来の技術】環境衛生等の点から種々の分野で脱溶剤
が進められる中、アクリル系感圧接着剤の分野でも乳化
剤を用いて水分散液としたものが提案されている。しか
しながら、かかる水分散型アクリル系感圧接着剤を用い
て得た接着テープは保持力に乏しく、かつ水分を吸収し
て接着力が低下するという耐水性にも乏しい問題点があ
った。2. Description of the Related Art While solvent removal is being promoted in various fields from the standpoint of environmental hygiene, it has been proposed in the field of acrylic pressure-sensitive adhesives to prepare an aqueous dispersion using an emulsifier. However, the adhesive tape obtained by using such a water-dispersible acrylic pressure-sensitive adhesive has a problem in that it has a poor holding power and also has a poor water resistance in that it absorbs moisture to lower the adhesive power.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、水分散型ア
クリル系感圧接着剤からなる接着テープの保持力と耐水
性の向上を目的とする。SUMMARY OF THE INVENTION An object of the present invention is to improve the holding power and water resistance of an adhesive tape made of a water-dispersible acrylic pressure-sensitive adhesive.
【０００４】[0004]
【課題を解決するための手段】本発明は、水分散型アク
リル系感圧接着剤における乳化剤をベースポリマーに化
合させてなる感圧接着層を、支持テープ上に有すること
を特徴とする感圧接着テープを提供するものである。The present invention has a pressure-sensitive adhesive layer comprising a base polymer and an emulsifier in a water-dispersible acrylic pressure-sensitive adhesive, which is formed on a support tape. An adhesive tape is provided.
【０００５】また本発明は、不飽和二重結合含有の乳化
剤を用いて形成した水分散型アクリル系感圧接着剤を支
持テープ上に塗布して電離性放射線で処理し、前記乳化
剤をベースポリマーに化合させることを特徴とする前記
感圧接着テープの製造方法を提供するものである。In the present invention, the water-dispersible acrylic pressure-sensitive adhesive formed using an unsaturated double bond-containing emulsifier is coated on a support tape and treated with ionizing radiation, and the emulsifier is used as a base polymer. The present invention provides a method for producing the pressure-sensitive adhesive tape, characterized in that:
【０００６】[0006]
【作用】本発明者らは、水分散型アクリル系感圧接着剤
からなる接着テープの耐水性の向上をはかるべく鋭意研
究を重ねる中で、接着剤の水分散化のために用いる乳化
剤が感圧接着層に残留し、これが水分吸収の原因である
ことを究明し、この知見に基づいてさらに研究を重ねた
結果、不飽和二重結合含有の乳化剤を用いて水分散液の
調製を可能にすると共に、その乳化剤をベースポリマー
と一体化することにより、水分の吸収を抑制でき、しか
も意外なことに保持力が著しく向上することを見出し
た。The present inventors have conducted extensive studies to improve the water resistance of an adhesive tape made of a water-dispersible acrylic pressure-sensitive adhesive, and as a result, the emulsifier used to disperse the adhesive in water has been detected. It was found that it remains in the pressure-sensitive adhesive layer, which is the cause of water absorption, and as a result of further research based on this finding, it became possible to prepare an aqueous dispersion using an emulsifier containing an unsaturated double bond. At the same time, it has been found that, by integrating the emulsifier with the base polymer, absorption of water can be suppressed and, surprisingly, the holding power is remarkably improved.
【０００７】[0007]
【発明の構成要素の例示】本発明の感圧接着テープは、
水分散型アクリル系感圧接着剤における乳化剤をベース
ポリマーに化合させてなる感圧接着層を支持テープ上に
有するものである。その製造は例えば、不飽和二重結合
含有の乳化剤を用いて形成した水分散型アクリル系感圧
接着剤を用いて行うことができる。Exemplary pressure-sensitive adhesive tape of the present invention comprises:
A pressure-sensitive adhesive layer obtained by combining an emulsifier in a water-dispersible acrylic pressure-sensitive adhesive with a base polymer is provided on a support tape. The production can be performed using, for example, a water-dispersible acrylic pressure-sensitive adhesive formed using an unsaturated double bond-containing emulsifier.
【０００８】前記した水分散型アクリル系感圧接着剤の
調製は例えば、アクリル酸系アルキルエステルを主成分
とする単量体混合物を、不飽和二重結合含有の乳化剤を
用いて乳化重合し、ベースポリマーのエマルジョンを得
る方式などにより行うことができる。The above-mentioned water-dispersible acrylic pressure-sensitive adhesive is prepared, for example, by emulsion-polymerizing a monomer mixture containing an acrylic acid alkyl ester as a main component using an unsaturated double bond-containing emulsifier, It can be carried out by a method of obtaining an emulsion of the base polymer.
【０００９】アクリル酸系アルキルエステルとしては、
例えばブチル基、アミル基、２−エチルヘキシル基、オ
クチル基、イソノニル基の如き炭素数が１２以下のアル
キル基を有するアクリル酸、ないしメタクリル酸のアル
キルエステルなどがあげられる。As the acrylic acid type alkyl ester,
Examples thereof include an alkyl ester of acrylic acid or methacrylic acid having an alkyl group having 12 or less carbon atoms such as a butyl group, an amyl group, a 2-ethylhexyl group, an octyl group, and an isononyl group.
【００１０】アクリル酸系アルキルエステルと併用され
ることのある改質用単量体としては、酢酸ビニル、プロ
ピオン酸ビニルの如きビニル系エステル類、スチレンな
いしα−メチルスチレンの如きスチレン誘導体類、ビニ
ルピロリドン、アクリロニトリル、メタクリロニトリ
ル、アクリルアミド、Ｎ−メチロールアクリルアミド、
メタクリルアミドなどがあげられる。改質用単量体の使
用量は、アクリル酸系アルキルエステルの同量以下であ
る。Examples of the modifying monomer which may be used in combination with the acrylic acid alkyl ester include vinyl esters such as vinyl acetate and vinyl propionate, styrene derivatives such as styrene and α-methylstyrene, and vinyl. Pyrrolidone, acrylonitrile, methacrylonitrile, acrylamide, N-methylol acrylamide,
Examples include methacrylamide. The amount of the modifying monomer used is equal to or less than that of the acrylic acid alkyl ester.
【００１１】また、アクリル酸、メタクリル酸、（無
水）マレイン酸、イタコン酸、フマール酸、クロトン酸
の如き、官能基を有する不飽和単量体も併用されること
がある。官能基を有する不飽和単量体の併用は、凝集力
等の接着特性の改良に特に有効である。その使用量は、
全単量体の０．５〜１０重量％が好ましい。Further, an unsaturated monomer having a functional group such as acrylic acid, methacrylic acid, maleic acid (anhydrous), itaconic acid, fumaric acid, crotonic acid may be used in combination. The combined use of an unsaturated monomer having a functional group is particularly effective for improving adhesive properties such as cohesive force. The usage is
0.5 to 10% by weight of the total monomer is preferable.
【００１２】不飽和二重結合含有の乳化剤としては、ア
ルキルアリルスルホコハク酸ナトリウム、アリル基や
（メタ）アクリロイル基を有するノニルフェニルエーテ
ル型やポリエチレングリコール・ポリプロピレングリコ
ール型の乳化剤などがあげられる。乳化剤は、乳化重合
の安定した進行に必要な量を用いることができ、その使
用量について特に限定はない。一般には、単量体混合物
１００重量部あたり０．５〜１０重量部程度が用いられ
る。Examples of the unsaturated double bond-containing emulsifier include sodium alkylallylsulfosuccinate, nonylphenyl ether type or polyethylene glycol / polypropylene glycol type emulsifiers having an allyl group or a (meth) acryloyl group. The emulsifier can be used in an amount necessary for the stable progress of emulsion polymerization, and the amount used is not particularly limited. Generally, about 0.5 to 10 parts by weight is used per 100 parts by weight of the monomer mixture.
【００１３】ベースポリマーの乳化重合は、過硫酸アン
モニウムや過酸化水素などの重合開始剤を用いた通常の
方式で行うことができる。単量体混合物を不飽和二重結
合含有の乳化剤で予め乳化し、その乳化液を重合開始剤
配合の水をベースとする反応系に滴下して反応を進行さ
せる方式が重合安定性の点より好ましい。重合に際して
は、分子量の調節を目的にラウリルメルカプタンやメル
カプトエタノールなどの連鎖移動剤を用いてもよい。調
製するベースポリマーは、ガラス転移点が２５０゜Ｋ以
下のものが接着特性の点より好ましい。The emulsion polymerization of the base polymer can be carried out by a usual method using a polymerization initiator such as ammonium persulfate or hydrogen peroxide. The monomer mixture is previously emulsified with an unsaturated double bond-containing emulsifier, and the emulsion is added dropwise to a water-based reaction system containing a polymerization initiator to proceed the reaction from the viewpoint of polymerization stability. preferable. In the polymerization, a chain transfer agent such as lauryl mercaptan or mercaptoethanol may be used for the purpose of controlling the molecular weight. The base polymer to be prepared preferably has a glass transition point of 250 ° K or lower from the viewpoint of adhesive properties.
【００１４】乳化重合により調製されたベースポリマー
の水分散液は、必要に応じ濃度調節してそのまま水分散
型アクリル系感圧接着剤として用いることができる。ま
た、接着力やタック等を改善する目的で粘着付与樹脂を
配合することもできる。その場合、粘着付与樹脂は、不
飽和二重結合含有の乳化剤を用いて乳化し、乳化液とし
て水分散型アクリル系感圧接着剤と混合することが品質
の安定化の点より好ましい。粘着付与樹脂の配合量は、
ベースポリマー１００重量部あたり、１０〜８０重量部
が一般的である。The aqueous dispersion of the base polymer prepared by emulsion polymerization can be used as a water-dispersible acrylic pressure-sensitive adhesive as it is, after adjusting the concentration if necessary. Further, a tackifying resin may be blended for the purpose of improving the adhesive force, tack and the like. In this case, the tackifying resin is preferably emulsified using an unsaturated double bond-containing emulsifier and mixed as an emulsion with a water-dispersed acrylic pressure-sensitive adhesive from the viewpoint of stabilizing the quality. The compounding amount of tackifying resin is
It is generally 10 to 80 parts by weight per 100 parts by weight of the base polymer.
【００１５】粘着付与樹脂としては、例えばロジン系樹
脂、ロジルエステル系樹脂、テルペン系樹脂、テルペン
・フェノール系樹脂、石油系樹脂などの通例のものを用
いうる。粘着付与樹脂を乳化するための不飽和二重結合
含有の乳化剤としては、上記したものなどがあげられ、
ベースポリマーの乳化重合に用いたものと同じものが混
合系の安定性などの点より好ましく用いられる。粘着付
与樹脂の乳化処理は、例えば有機溶剤による粘着付与樹
脂の溶液、又は粘着付与樹脂の加熱溶融液を乳化剤配合
の水中に高速撹拌下に添加する方式などにより行うこと
ができる。As the tackifying resin, for example, rosin-based resin, rosyl ester-based resin, terpene-based resin, terpene / phenol-based resin, petroleum-based resin and the like can be used. Examples of the unsaturated double bond-containing emulsifier for emulsifying the tackifying resin include those described above,
The same as that used for emulsion polymerization of the base polymer is preferably used from the viewpoint of stability of the mixed system. The emulsification treatment of the tackifying resin can be performed, for example, by adding a solution of the tackifying resin with an organic solvent or a heated melt of the tackifying resin to water containing an emulsifier under high-speed stirring.
【００１６】感圧接着テープの製造は例えば、水分散型
アクリル系感圧接着剤を支持テープ上に塗布し、必要に
応じてそれを乾燥させたのち電離性放射線で処理する方
法などにより行うことができる。支持テープには、紙、
合成紙、布、ラミネート布、プラスチックフィルム、金
属箔、発泡シート、剥離ライナーなどの通例のものを用
いてよい。The pressure-sensitive adhesive tape is produced, for example, by a method in which a water-dispersible acrylic pressure-sensitive adhesive is applied onto a support tape, dried if necessary, and then treated with ionizing radiation. You can Support tape is paper,
Conventional materials such as synthetic paper, cloth, laminated cloth, plastic film, metal foil, foamed sheet, release liner and the like may be used.
【００１７】電離性放射線による処理は、例えば電子線
やγ線などを照射することにより行うことができる。こ
れにより、乳化剤がその不飽和二重結合を介してベース
ポリマーと化合する。電離性放射線の照射量は、ベース
ポリマーの分子量や乳化剤の含有量などにより適宜に決
定される。一般には、０．５〜２０Ｍradである。その
照射量が０．５Ｍrad未満では耐水性が充分に改善され
ない場合があり、２０Ｍradを超えるとベースポリマー
自体の架橋が進みすぎてタック等の接着特性が低下する
場合がある。The treatment with ionizing radiation can be carried out by irradiating, for example, an electron beam or γ ray. This causes the emulsifier to combine with the base polymer via its unsaturated double bond. The dose of ionizing radiation is appropriately determined depending on the molecular weight of the base polymer, the content of the emulsifier, and the like. Generally, it is 0.5 to 20 Mrad. If the irradiation amount is less than 0.5 Mrad, the water resistance may not be sufficiently improved, and if it exceeds 20 Mrad, the base polymer itself may be excessively crosslinked and the adhesive properties such as tack may be deteriorated.
【００１８】なお本発明においては、乳化剤の化合を促
進する目的で水分散型アクリル系感圧接着剤に、不飽和
二重結合を２個以上有する化合物を配合してもよい。か
かる化合物の例としては、トリメチロールプロパントリ
アクリレート、トリメチロールプロパントリメタクリレ
ート、ジエチレングリコールジアクリレート、ジペンタ
エリスリトールヘキサアクリレートなどがあげられる。
配合量は、不飽和二重結合含有の乳化剤１モルあたり、
０．０５〜２モルが一般的である。なお不飽和二重結合
を２個以上有する化合物の配合は、水分散型アクリル系
感圧接着剤に直接添加してもよいし、粘着付与樹脂の如
く乳化液として添加してもよい。In the present invention, a compound having two or more unsaturated double bonds may be added to the water-dispersible acrylic pressure-sensitive adhesive for the purpose of promoting the combination of emulsifiers. Examples of such compounds include trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, diethylene glycol diacrylate, dipentaerythritol hexaacrylate and the like.
The blending amount is 1 mol of the unsaturated double bond-containing emulsifier,
0.05-2 moles are common. The compound having two or more unsaturated double bonds may be added directly to the water-dispersible acrylic pressure-sensitive adhesive, or may be added as an emulsion such as a tackifying resin.
【００１９】上記により、乳化剤がベースポリマーと化
合した感圧接着層を支持テープ上に有する感圧接着テー
プが形成される。なお、前記の支持テープに剥離剤で処
理したセパレータを用い、その上に形成された感圧接着
層を他の支持テープ上に移着して感圧接着テープとする
こともできる。感圧接着層の厚さは使用目的に応じて適
宜に決定されるが、一般には１〜５００μmとされる。By the above, the pressure-sensitive adhesive tape having the pressure-sensitive adhesive layer in which the emulsifier is combined with the base polymer on the support tape is formed. It is also possible to use a separator treated with a release agent on the above-mentioned supporting tape and transfer the pressure-sensitive adhesive layer formed thereon onto another supporting tape to obtain a pressure-sensitive adhesive tape. The thickness of the pressure-sensitive adhesive layer is appropriately determined according to the purpose of use, but is generally 1 to 500 μm.
【００２０】[0020]
【発明の効果】本発明によれば、乳化剤をベースポリマ
ーに化合させたので、水分散型アクリル系感圧接着剤か
らなる保持力と耐水性に優れ、満足できる接着力を有す
る感圧接着テープを得ることができる。According to the present invention, since the emulsifier is combined with the base polymer, the pressure-sensitive adhesive tape made of a water-dispersible acrylic pressure-sensitive adhesive has excellent holding power and water resistance and has satisfactory adhesive strength. Can be obtained.
【００２１】[0021]
実施例１ 温度計、撹拌器、窒素導入管及び還流冷却管を備えた５
００ml容の反応器に、過硫酸カリウム０．５部を溶解さ
せた蒸留水２０部を入れ、窒素気流下で８０℃に加温し
てその維持下に、アクリル酸ｎ−ブチル８０部（重量
部、以下同じ）、アクリル酸エチル１５部、及びアクリ
ル酸５部からなる単量体混合物１００部と、アルキルア
リルスルホコハク酸ナトリウム（エレミノールＪＳ−
２、三洋化成社製）２部と、蒸留水４６部を混合してな
る乳化液を５時間かけて滴下し、得られた乳化重合液
（ベースポリマーのガラス転移点２２６°Ｋ）にアンモ
ニア水を加えてｐＨを８に調節し、水分散型アクリル系
感圧接着剤を得た。Example 1 5 equipped with a thermometer, stirrer, nitrogen inlet tube and reflux condenser tube
20 parts of distilled water in which 0.5 parts of potassium persulfate was dissolved was placed in a reactor of 00 ml volume, heated to 80 ° C. under a nitrogen stream, and maintained at that temperature, 80 parts of n-butyl acrylate (weight: Parts, the same shall apply hereinafter), 100 parts of a monomer mixture consisting of 15 parts of ethyl acrylate and 5 parts of acrylic acid, and sodium alkylallyl sulfosuccinate (Eleminol JS-
2, Sanyo Kasei Co., Ltd.) and distilled water 46 parts were added dropwise over 5 hours, and the resulting emulsion polymerization liquid (glass transition point of base polymer 226 ° K) was ammonia water. Was added to adjust the pH to 8 to obtain a water-dispersed acrylic pressure-sensitive adhesive.
【００２２】次に、前記の水分散型アクリル系感圧接着
剤を厚さ２５μmのポリエステルフィルムの上に塗布
し、１２０℃で３分間乾燥させて厚さ５０μmの層と
し、それに窒素雰囲気下で電子線を３Ｍrad照射して
（加速電圧１６５ｋＶ）、本発明の感圧接着テープを得
た。Next, the above water-dispersible acrylic pressure-sensitive adhesive was applied on a polyester film having a thickness of 25 μm and dried at 120 ° C. for 3 minutes to form a layer having a thickness of 50 μm. The pressure-sensitive adhesive tape of the present invention was obtained by irradiating an electron beam with 3 Mrad (accelerating voltage 165 kV).
【００２３】実施例２ 水添ロジンエステル（フォーラリン９０、理化ハーキュ
レス社製）の７０重量％トルエン溶液１００部を、蒸留
水６６部にアルキルアリルスルホコハク酸ナトリウム２
部を溶解させた液に撹拌下に混合して乳化液とし、その
３０部を実施例１で得た水分散型アクリル系感圧接着剤
１００部に加えて混合し、その水分散型アクリル系感圧
接着剤を用いて実施例１に準じ本発明の感圧接着テープ
を得た。Example 2 100 parts of a 70 wt% toluene solution of hydrogenated rosin ester (Foralin 90, manufactured by Rika Hercules Co., Ltd.) was added to 66 parts of distilled water and sodium alkylallyl sulfosuccinate 2 was added.
1 part of the solution was mixed with stirring to form an emulsion, and 30 parts of the emulsion was added to 100 parts of the water-dispersible acrylic pressure-sensitive adhesive obtained in Example 1 and mixed to prepare an emulsion. The pressure-sensitive adhesive tape of the present invention was obtained according to Example 1 using the pressure-sensitive adhesive.
【００２４】実施例３ トリメチロールプロパントリアクリレート２部を追加配
合したほかは実施例２に準じて水分散型アクリル系感圧
接着剤、及び本発明の感圧接着テープを得た。Example 3 A water-dispersible acrylic pressure-sensitive adhesive and the pressure-sensitive adhesive tape of the present invention were obtained in the same manner as in Example 2 except that 2 parts of trimethylolpropane triacrylate was additionally compounded.
【００２５】実施例４ 実施例１に準じ、アクリル酸２−エチルヘキシル５３
部、アクリル酸エチル４５部、及びアクリル酸２部から
なる単量体混合物を用いて乳化重合して（ベースポリマ
ーのガラス転移点２２５°Ｋ）水分散型アクリル系感圧
接着剤を得、それを用いて本発明の感圧接着テープを得
た。ただし、電子線照射量は４Ｍradとした。Example 4 In accordance with Example 1, 2-ethylhexyl acrylate 53
Parts, 45 parts of ethyl acrylate, and 2 parts of acrylic acid are used for emulsion polymerization to obtain a water-dispersible acrylic pressure-sensitive adhesive by emulsion polymerization (glass transition point of base polymer: 225 ° K). Was used to obtain the pressure-sensitive adhesive tape of the present invention. However, the electron beam irradiation amount was 4 Mrad.
【００２６】実施例５ ロジンエステル（スーパーエステルＡ−１００、荒川化
学工業社製）の乳化液を実施例２に準じて調製し、その
３０部を実施例４で得た水分散型アクリル系感圧接着剤
１００部に加えて混合し、その水分散型アクリル系感圧
接着剤を用いて実施例４に準じ本発明の感圧接着テープ
を得た。Example 5 An emulsion of rosin ester (Super Ester A-100, manufactured by Arakawa Chemical Industry Co., Ltd.) was prepared according to Example 2, and 30 parts of the emulsion was prepared in Example 4 to obtain the water-dispersible acrylic type emulsion. A pressure-sensitive adhesive tape of the present invention was obtained according to Example 4 by using the water-dispersible acrylic pressure-sensitive adhesive in addition to 100 parts of the pressure-sensitive adhesive.
【００２７】比較例１ 電子線による照射処理を施さないほかは実施例１に準じ
て感圧接着テープを得た。Comparative Example 1 A pressure-sensitive adhesive tape was obtained in the same manner as in Example 1 except that irradiation with an electron beam was not performed.
【００２８】比較例２ 電子線による照射処理を施さないほかは実施例２に準じ
て感圧接着テープを得た。Comparative Example 2 A pressure-sensitive adhesive tape was obtained in the same manner as in Example 2 except that irradiation treatment with an electron beam was not performed.
【００２９】比較例３ アルキルアリルスルホコハク酸ナトリウムに代えて、ド
デシルベンゼンスルホン酸ナトリウムを用いたほかは実
施例４に準じて感圧接着テープを得た。Comparative Example 3 A pressure-sensitive adhesive tape was obtained in the same manner as in Example 4 except that sodium dodecylbenzenesulfonate was used instead of sodium alkylallylsulfosuccinate.
【００３０】比較例４ ロジンエステルの乳化剤としてアルキルアリルスルホコ
ハク酸ナトリウムに代えて、ドデシルベンゼンスルホン
酸ナトリウムを用いたほかは実施例５に準じて感圧接着
テープを得たComparative Example 4 A pressure-sensitive adhesive tape was obtained in the same manner as in Example 5 except that sodium dodecylbenzenesulfonate was used instead of sodium alkylallylsulfosuccinate as an emulsifier for rosin ester.
【００３１】評価試験 実施例、比較例で得た感圧接着テープについて下記の特
性を調べた。 接着力 ＪＩＳ Ｚ １５２８に準拠して接着力（１８０度ピー
ル）を測定した。Evaluation Test The pressure-sensitive adhesive tapes obtained in Examples and Comparative Examples were examined for the following characteristics. Adhesive force Adhesive force (180 degree peel) was measured according to JIS Z 1528.
【００３２】保持力 ベークライト板に２０mm×２０mmの接着面積で接着し、
４０℃又は８０℃において１kgの荷重を負荷して落下す
るまでの時間を調べた。Holding power Bonding to a bakelite plate with a bonding area of 20 mm × 20 mm,
The time required to drop a load of 1 kg at 40 ° C. or 80 ° C. was examined.
【００３３】耐水性 感圧接着テープを水中（室温）に７２時間浸漬後、それ
を取出して表面の水分を拭取り、浸漬の前後における重
量差より吸水率を算出した。またその浸漬後の感圧接着
テープについて前記に準じて接着力を測定した。Water resistance After immersing the pressure-sensitive adhesive tape in water (room temperature) for 72 hours, it was taken out and the surface water was wiped off, and the water absorption was calculated from the weight difference before and after the immersion. Further, the adhesive force of the pressure-sensitive adhesive tape after the immersion was measured according to the above.
【００３４】前記の結果を表１に示した。The above results are shown in Table 1.
【表１】 表１より、実施例の感圧接着テープは保持力と耐水性
に著しく優れていることがわかる。[Table 1] From Table 1, it can be seen that the pressure-sensitive adhesive tapes of Examples are remarkably excellent in holding power and water resistance.
Claims (3)
乳化剤をベースポリマーに化合させてなる感圧接着層
を、支持テープ上に有することを特徴とする感圧接着テ
ープ。1. A pressure-sensitive adhesive tape comprising a support tape and a pressure-sensitive adhesive layer obtained by combining an emulsifier in a water-dispersible acrylic pressure-sensitive adhesive with a base polymer.
二重結合含有の乳化剤による粘着付与樹脂の乳化液を含
有するものである請求項１に記載の感圧接着テープ。2. The pressure-sensitive adhesive tape according to claim 1, wherein the water-dispersible acrylic pressure-sensitive adhesive contains an emulsion of a tackifying resin with an unsaturated double bond-containing emulsifier.
成した水分散型アクリル系感圧接着剤を支持テープ上に
塗布して電離性放射線で処理し、前記乳化剤をベースポ
リマーに化合させることを特徴とする請求項１又は２に
記載の感圧接着テープの製造方法。3. A water-dispersible acrylic pressure-sensitive adhesive formed using an unsaturated double bond-containing emulsifier is coated on a support tape and treated with ionizing radiation to combine the emulsifier with a base polymer. The method for producing a pressure-sensitive adhesive tape according to claim 1, wherein the pressure-sensitive adhesive tape is manufactured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3287175A JP3016926B2 (en) | 1991-10-07 | 1991-10-07 | Pressure-sensitive adhesive tape and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3287175A JP3016926B2 (en) | 1991-10-07 | 1991-10-07 | Pressure-sensitive adhesive tape and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0598222A true JPH0598222A (en) | 1993-04-20 |
| JP3016926B2 JP3016926B2 (en) | 2000-03-06 |
Family
ID=17714050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3287175A Expired - Fee Related JP3016926B2 (en) | 1991-10-07 | 1991-10-07 | Pressure-sensitive adhesive tape and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3016926B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0644213A1 (en) * | 1993-09-21 | 1995-03-22 | Röhm Gmbh | Dispersions for pressure-sensitive adhesives |
| CN104694055A (en) * | 2015-04-03 | 2015-06-10 | 李海兰 | Preparation method for waterproof adhesive |
-
1991
- 1991-10-07 JP JP3287175A patent/JP3016926B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0644213A1 (en) * | 1993-09-21 | 1995-03-22 | Röhm Gmbh | Dispersions for pressure-sensitive adhesives |
| CN104694055A (en) * | 2015-04-03 | 2015-06-10 | 李海兰 | Preparation method for waterproof adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3016926B2 (en) | 2000-03-06 |
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