JPH0819392B2 - Pressure-sensitive adhesives and their adhesive sheets - Google Patents
Pressure-sensitive adhesives and their adhesive sheetsInfo
- Publication number
- JPH0819392B2 JPH0819392B2 JP4345447A JP34544792A JPH0819392B2 JP H0819392 B2 JPH0819392 B2 JP H0819392B2 JP 4345447 A JP4345447 A JP 4345447A JP 34544792 A JP34544792 A JP 34544792A JP H0819392 B2 JPH0819392 B2 JP H0819392B2
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、アクリル系重合体を主
成分とした感圧接着剤と、これをシ―ト状やテ―プ状な
どの形態とした接着シ―ト類に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive adhesive containing an acrylic polymer as a main component and adhesive sheets in the form of a sheet or a tape.
【０００２】[0002]
【従来の技術】アクリル系重合体を主成分とした感圧接
着剤は、各種の分野で広く利用されており、最近では、
作業の簡便化や安全衛生の向上を目的として、液状タイ
プのものに代え、シ―ト状やテ―プ状などのタイプとし
たものを用いて接着処理することが、定着してきてい
る。2. Description of the Related Art Pressure-sensitive adhesives containing an acrylic polymer as a main component are widely used in various fields.
For the purpose of simplifying the work and improving safety and health, it has been established that the liquid type is replaced with a sheet type or a tape type to perform the adhesion treatment.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来公
知のアクリル系の感圧接着剤は、小さな応力でも長時間
受けると、ずれや破壊を生じやすいという問題があり、
しかも、高温での接着特性に劣る問題もあつた。However, conventionally known acrylic pressure-sensitive adhesives have a problem that they are likely to be displaced or broken when subjected to a small stress for a long time.
Moreover, there was a problem that the adhesive property at high temperature was poor.
【０００４】本発明は、上記従来の事情に鑑み、接着の
保持特性にすぐれるとともに、高温での接着特性にもす
ぐれた感圧接着剤とその接着シ―ト類を提供することを
目的としている。In view of the above-mentioned conventional circumstances, the present invention has an object to provide a pressure-sensitive adhesive having excellent adhesive holding properties and excellent adhesive properties at high temperatures, and adhesive sheets thereof. There is.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、上記の目
的を達成するために、鋭意検討した結果、特定の単量体
構成からなるアクリル系重合体を用いることにより、接
着の保持特性にすぐれるとともに、高温での接着特性に
もすぐれた感圧接着剤が得られることを知り、本発明を
完成するに至つた。Means for Solving the Problems The inventors of the present invention have conducted extensive studies in order to achieve the above-mentioned object, and as a result, by using an acrylic polymer having a specific monomer structure, the adhesive holding property is improved. It was found that a pressure-sensitive adhesive having excellent adhesive properties at high temperature can be obtained, and the present invention has been completed.
【０００６】すなわち、本発明は、つぎのａ〜ｄ成分； ａ）一般式（１）；ＣＨ2 ＝Ｃ（Ｒ1 ）ＣＯＯＲ2 （式
中、Ｒ1 は水素またはメチル基、Ｒ2 は炭素数４〜１４
のアルキル基である）で表されるアクリル系単量体５０
〜８４重量％ ｃ）酸性基を含む単量体１〜１０重量％ ｄ）上記のａ〜ｃ成分と共重合可能な他の単量体０〜２
５重量％ からなるアクリル系重合体を主成分とすることを特徴と
する感圧接着剤と、支持体の片面または両面に上記の感
圧接着剤からなる層を有することを特徴とするシ―ト状
やテ―プ状などの接着シ―ト類とに係るものである。That is, the present invention provides the following components a to d: a) general formula (1); CH 2 ═C (R 1 ) COOR 2 (wherein R 1 is hydrogen or a methyl group, and R 2 is carbon). Number 4-14
Which is an alkyl group of 50)
~ 84% by weight c) 1 to 10% by weight of a monomer containing an acidic group d) 0 to 2 of another monomer copolymerizable with the components a to c
A pressure-sensitive adhesive characterized in that an acrylic polymer composed of 5% by weight is a main component, and a layer comprising the above-mentioned pressure-sensitive adhesive on one or both sides of a support. It relates to adhesive sheets such as sheet-shaped or tape-shaped sheets.
【０００７】[0007]
【発明の構成・作用】本発明におけるａ成分としてのア
クリル系単量体は、たとえば、一般式（１）中のＲ2 が
ブチル基、イソブチル基、イソアミル基、ヘキシル基、
ヘプチル基、２−エチルヘキシル基、イソオクチル基、
イソノニル基、イソデシル基などのアルキル基からなる
アクリル酸またはメタクリル酸のエステルが挙げられ
る。Ｒ2の炭素数が４未満では感圧接着剤のぬれ性が低
下して初期接着性が悪くなり、また１４を超えると接着
力に劣る問題があり、いずれも好ましくない。The acrylic monomer as the component a in the present invention has, for example, R 2 in the general formula (1) of butyl group, isobutyl group, isoamyl group, hexyl group,
Heptyl group, 2-ethylhexyl group, isooctyl group,
Examples thereof include esters of acrylic acid or methacrylic acid having an alkyl group such as an isononyl group and an isodecyl group. When the carbon number of R 2 is less than 4, the wettability of the pressure-sensitive adhesive is lowered and the initial adhesiveness is deteriorated, and when it exceeds 14, there is a problem that the adhesive strength is inferior.
【０００８】このａ成分としてのアクリル系単量体は、
単量体全体量の５０〜８４重量％、好ましくは６０〜８
０重量％の範囲で、その１種または２種以上が用いられ
る。５０重量％未満では、アクリル系感圧接着剤として
の性能を発揮できず、また８４重量％を超えると、その
ぶん後述するｂ，ｃ成分の絶対量が不足し、本発明の目
的とする接着の保持特性および高温での接着特性にとも
にすぐれる感圧接着剤が得られない。The acrylic monomer as the component a is
50 to 84% by weight of the total amount of monomers, preferably 60 to 8
One or two or more thereof are used within the range of 0% by weight. If it is less than 50% by weight, the performance as an acrylic pressure-sensitive adhesive cannot be exhibited, and if it exceeds 84% by weight, the absolute amounts of the components b and c to be described later are insufficient, and the adhesion aimed at by the present invention. It is not possible to obtain a pressure-sensitive adhesive having excellent holding properties and adhesive properties at high temperatures.
【０００９】本発明におけるｂ成分としてのＮ−ビニル
環状アミドは、一般式（２）におけるアミド基〔−Ｎ−
Ｃ（＝Ｏ）〕を構成する窒素原子および炭素原子と、さ
らに有機基（Ｒ3 ）とによつて複素環を形成してなるも
ので、上記のＲ3 は、飽和または不飽和の炭化水素基で
あるか、あるいはその炭素鎖中に酸素原子や別のカルボ
ニル基などの基を含むものである。The N-vinyl cyclic amide as the component b in the present invention is an amide group [-N- in the general formula (2).
C (= O)] and a nitrogen atom and a carbon atom constituting the heterocyclic ring are further formed by an organic group (R 3 ), wherein R 3 is a saturated or unsaturated hydrocarbon. It is a group or contains a group such as an oxygen atom or another carbonyl group in its carbon chain.
【００１０】このようなＮ−ビニル環状アミドとして
は、たとえば、Ｎ−ビニル−２−ピペリドン、Ｎ−ビニ
ル−３−モルホリノン、Ｎ−ビニル−２−カプロラクタ
ム、Ｎ−ビニル−２−ピロリドン、Ｎ−ビニル−１・３
−オキサジン−２−オン、Ｎ−ビニル−３・５−モルホ
リンジオンなどが挙げられる。Examples of such N-vinyl cyclic amides include N-vinyl-2-piperidone, N-vinyl-3-morpholinone, N-vinyl-2-caprolactam, N-vinyl-2-pyrrolidone and N-. Vinyl-1.3
-Oxazin-2-one, N-vinyl-3.5-morpholinedione and the like can be mentioned.
【００１１】このｂ成分としてのＮ−ビニル環状アミド
は、単量体全体量の１５〜２８重量％、好ましくは１６
〜２５重量％の範囲で、その１種または２種以上が用い
られる。１５重量％未満では、高温での接着力に乏し
く、２８重量％を超えると、室温での弾性率が増大し
て、室温での初期の接着特性が低下する。The N-vinyl cyclic amide as the component b is 15 to 28% by weight, preferably 16% by weight of the total amount of the monomers.
One kind or two or more kinds thereof are used in the range of 25 wt%. If it is less than 15% by weight, the adhesive strength at high temperature is poor, and if it exceeds 28% by weight, the elastic modulus at room temperature increases and the initial adhesive properties at room temperature deteriorate.
【００１２】なお、従来公知のアクリル系の感圧接着剤
の中には、特定の用途目的に対し、アクリル系単量体の
共重合成分として、Ｎ−ビニル−２−ピロリドンなどを
本発明の範囲より少ない割合で用いたものや、その際ア
クリル酸などを併用したものも知られている。しかし、
これらは高温での接着特性か、あるいは接着の保持特性
に著しく劣り、本発明の目的には適さない。Among the conventionally known acrylic pressure-sensitive adhesives, N-vinyl-2-pyrrolidone or the like is used as a copolymerization component of an acrylic monomer in the present invention for a specific purpose of use. It is also known that one used in a ratio smaller than the range, and one used together with acrylic acid or the like at that time. But,
These are not suitable for the purpose of the present invention, because they have extremely poor adhesive properties at high temperatures or adhesive retention properties.
【００１３】本発明におけるｃ成分としての酸性基を含
む単量体には、アクリル酸、メタクリル酸、イタコン
酸、マレイン酸、クロトン酸などのカルボキシル基含有
単量体のほか、２−アクリルアミド−２−メチルプロパ
ンスルホン酸などのスルホン酸基含有単量体、２−ヒド
ロキシエチルアクリロイルホスフエ―ト、２−ヒドロキ
シプロピルアクリロイルホスフエ―トなどのリン酸基含
有単量体などが含まれ、使用目的に応じて、そのいずれ
かが選択使用される。Examples of the monomer containing an acidic group as the component c in the present invention include carboxyl group-containing monomers such as acrylic acid, methacrylic acid, itaconic acid, maleic acid and crotonic acid, and 2-acrylamide-2. -Sulfonic acid group-containing monomers such as methyl propane sulfonic acid, phosphoric acid group-containing monomers such as 2-hydroxyethyl acryloyl phosphate, 2-hydroxypropyl acryloyl phosphate, etc. Either of them is selected and used according to.
【００１４】このｃ成分としての酸性基を含む単量体
は、単量体全体量の１〜１０重量％、好ましくは２〜８
重量％の範囲で、その１種または２種以上が用いられ
る。１重量％未満では、凝集力が不足し、また１０重量
％を超えると、初期の接着性が劣り、いずれの場合も良
好な接着特性を発現させにくい。The monomer containing an acidic group as the component c is 1 to 10% by weight, preferably 2 to 8% by weight based on the total amount of the monomer.
One or two or more thereof are used within the range of weight%. If it is less than 1% by weight, the cohesive force is insufficient, and if it exceeds 10% by weight, the initial adhesiveness is inferior, and in any case, it is difficult to exhibit good adhesive properties.
【００１５】本発明におけるｄ成分の単量体は、上記の
ａ〜ｄ三成分と共重合可能な単量体であればよく、具体
的には、酢酸ビニル、スチレン、（メタ）アクリル酸グ
リシジル、（メタ）アクリル酸２−ヒドロキシエチル、
（メタ）アクリル酸２−ヒドロキシプロピル、（メタ）
アクリル酸メチル、（メタ）アクリル酸エチル、（メ
タ）アクリル酸プロピルなどが挙げられる。The monomer of the component d in the present invention may be any monomer which can be copolymerized with the above-mentioned three components a to d, and more specifically, vinyl acetate, styrene, glycidyl (meth) acrylate. , 2-hydroxyethyl (meth) acrylate,
2-Hydroxypropyl (meth) acrylate, (meth)
Methyl acrylate, ethyl (meth) acrylate, propyl (meth) acrylate and the like can be mentioned.
【００１６】このｄ成分としての単量体は、必要により
単量体全体量の２５重量％以下、好ましくは２０重量％
以下の範囲で、その１種または２種以上が用いられる。
２５重量％を超えると、アクリル系としての性能を発現
しにくかつたり、接着の保持特性および高温での接着特
性にともにすぐれる感圧接着剤を得にくい。The monomer as the component d is, if necessary, 25% by weight or less, preferably 20% by weight of the total amount of the monomers.
One or more of them are used within the following ranges.
When it exceeds 25% by weight, it is difficult to obtain the performance as an acrylic type, and it is difficult to obtain a pressure-sensitive adhesive having excellent adhesive retention properties and adhesive properties at high temperatures.
【００１７】本発明のアクリル系重合体は、上記のａ〜
ｃ三成分またはａ〜ｄ四成分からなる単量体混合物を、
常法により、溶液重合法、乳化重合法、塊状重合法、懸
濁重合法などの方法で共重合させることにより、得るこ
とができ、塊状重合法では、紫外線照射による重合方式
が好ましく採用される。The acrylic polymer of the present invention has the above a.
a monomer mixture consisting of three components c or four components a to d,
By a conventional method, it can be obtained by copolymerization by a method such as a solution polymerization method, an emulsion polymerization method, a bulk polymerization method, or a suspension polymerization method. In the bulk polymerization method, a polymerization method by ultraviolet irradiation is preferably adopted. .
【００１８】本発明の感圧接着剤は、このようにして得
られるアクリル系重合体を主成分とし、必要によりガラ
ス繊維や金属粉などの充てん剤、顔料、着色剤などの添
加剤を任意成分として含ませることができる。また、こ
の感圧接着剤は、適宜架橋処理を施したものであつても
よい。The pressure-sensitive adhesive of the present invention contains the acrylic polymer thus obtained as a main component, and optionally contains fillers such as glass fiber and metal powder, and additives such as pigments and colorants. Can be included as Further, this pressure-sensitive adhesive may be one which has been appropriately subjected to a crosslinking treatment.
【００１９】架橋処理は、アクリル系重合体を得る際に
内部架橋剤として多官能（メタ）アクリレ―トなどを添
加するか、あるいはアクリル系重合体を得たのちに外部
架橋剤として多官能のイソシアネ―ト化合物やエポキシ
化合物などを添加することにより実施できる。その他、
電子線照射などの活性光線による架橋処理を施してもよ
い。In the crosslinking treatment, a polyfunctional (meth) acrylate or the like is added as an internal crosslinking agent when an acrylic polymer is obtained, or a polyfunctional as an external crosslinking agent is obtained after obtaining the acrylic polymer. It can be carried out by adding an isocyanate compound or an epoxy compound. Other,
You may perform a crosslinking process by active rays, such as electron beam irradiation.
【００２０】本発明の接着シ―ト類は、このような感圧
接着剤からなる層を、支持体の片面または両面に所望厚
さに設けることにより、シ―ト状やテ―プ状などの形態
としたものである。上記の支持体としては、プラスチツ
クフイルム、紙、不織布、発泡体、金属箔などを用いる
ことができ、その片面または両面に剥離処理または接着
処理を施したものを使用してもよい。The adhesive sheet of the present invention is provided with a layer made of such a pressure-sensitive adhesive on one side or both sides of the support so as to have a desired thickness. It is in the form of. As the above-mentioned support, plastic film, paper, non-woven fabric, foam, metal foil and the like can be used, and one having one surface or both surfaces subjected to a peeling treatment or an adhesive treatment may be used.
【００２１】このように構成される本発明の感圧接着剤
およびその接着シ―ト類は、接着の保持特性にすぐれて
いるため、小さな応力を長時間受けることがあつても、
ずれや破壊を生じることがなく、そのうえ室温だけでな
く高温においても非常に良好な接着特性を発揮する。Since the pressure-sensitive adhesive of the present invention and the adhesive sheet thereof having the above-described structure have excellent adhesive holding properties, even if they may receive a small stress for a long time,
It does not cause slippage or breakage, and exhibits very good adhesive properties not only at room temperature but also at high temperatures.
【００２２】このような接着性能が得られる理由は、必
ずしも明らかではない。アクリル系重合体を構成する前
記ｂ成分のＮ−ビニル環状アミドが非共役系単量体のた
め、共役系単量体であるアクリル系単量体とのＱ値（共
鳴安定化の程度を表す）の差が大きく、適度な組成分布
を生じやすい（単量体組成の異なるポリマ―が混在化し
やすい）こと、および前記ｃ成分の酸性基を含む単量体
と上記ｂ成分との間に水素結合が生じて、これが感圧接
着剤に適度な凝集力をもたらすことなどによるものと推
定される。The reason why such adhesive performance is obtained is not always clear. Since the N-vinyl cyclic amide of the component b constituting the acrylic polymer is a non-conjugated monomer, the Q value (representing the degree of resonance stabilization) with the acrylic monomer which is a conjugated monomer is shown. ) Is large, an appropriate composition distribution is likely to occur (polymers having different monomer compositions are easily mixed), and hydrogen is present between the monomer containing the acidic group of the component c and the component b. It is presumed that a bond is generated, which causes the pressure-sensitive adhesive to have an appropriate cohesive force and the like.
【００２３】[0023]
【発明の効果】以上のように、本発明では、特定の単量
体構成からなるアクリル系重合体を主成分としたことに
より、接着の保持特性および高温での接着特性にともに
すぐれた感圧接着剤とその接着シ―ト類を提供すること
ができる。As described above, according to the present invention, by using the acrylic polymer having a specific monomer structure as the main component, the pressure-sensitive adhesive having excellent adhesive retention property and adhesive property at high temperature is obtained. An adhesive and its adhesive sheet can be provided.
【００２４】[0024]
【実施例】つぎに、本発明の実施例を記載してより具体
的に説明する。なお、以下において、部とあるのは重量
部を意味する。Next, an embodiment of the present invention will be described in more detail. In the following, "parts" means "parts by weight".
【００２５】実施例１ 冷却管、窒素導入管、温度計、紫外線照射装置および撹
拌装置を備えた反応容器に、アクリル酸２−エチルヘキ
シル７５部、Ｎ−ビニル−２−ピペリドン１７部、アク
リル酸８部、重合開始剤として２・２−ジメトキシ−２
−フエニルアセトフエノン０．１部を入れ、紫外線の照
射により重合して、重合率１１重量％のポリマ―／モノ
マ―混合物を得た。Example 1 In a reaction vessel equipped with a cooling pipe, a nitrogen introducing pipe, a thermometer, an ultraviolet irradiation device and a stirring device, 75 parts of 2-ethylhexyl acrylate, 17 parts of N-vinyl-2-piperidone and 8 parts of acrylic acid were placed. Part, 2,2-dimethoxy-2 as a polymerization initiator
-0.1 parts of phenylacetophenone was added and polymerized by irradiation with ultraviolet rays to obtain a polymer / monomer mixture having a polymerization rate of 11% by weight.
【００２６】このポリマ―／モノマ―混合物１００部
に、テトラエチレングリコ―ルジアクリレ―ト０．２部
を添加し、混合したのち、厚さ２５μｍのポリエステル
フイルム上に塗布し、紫外線を照射することにより、厚
さ５０μｍの感圧接着剤の層を有する接着テ―プを作製
した。To 100 parts of this polymer / monomer mixture, 0.2 part of tetraethylene glycol diacrylate was added, mixed, and then coated on a polyester film having a thickness of 25 μm and irradiated with ultraviolet rays. An adhesive tape having a layer of pressure-sensitive adhesive having a thickness of 50 μm was prepared.
【００２７】実施例２ 冷却管、窒素導入管、温度計および撹拌装置を備えた反
応容器に、アクリル酸イソノニル７２部、Ｎ−ビニル−
３−モルホリノン２５部、メタクリル酸３部、重合開始
剤として２・２´−アゾビスイソブチロニトリル０．２
部、酢酸エチル１００部を入れ、６０℃で１４時間反応
させて、ポリマ―溶液を得た。Example 2 72 parts of isononyl acrylate, N-vinyl-, were placed in a reaction vessel equipped with a cooling tube, a nitrogen introducing tube, a thermometer and a stirrer.
25 parts of 3-morpholinone, 3 parts of methacrylic acid, and 0.2'-azobisisobutyronitrile 0.2 as a polymerization initiator
Parts and 100 parts of ethyl acetate were added and reacted at 60 ° C. for 14 hours to obtain a polymer solution.
【００２８】このポリマ―溶液に、ポリマ―固形分１０
０部に対してテトラグリシジルメタキシレンジアミン
０．０５部を添加し、混合したのち、厚さ２５μｍのポ
リエステルフイルム上に塗布し、乾燥することにより、
厚さ５０μｍの感圧接着剤の層を有する接着テ―プを作
製した。This polymer solution was added with 10 parts of polymer solids.
By adding 0.05 parts of tetraglycidyl metaxylenediamine to 0 parts, mixing, coating on a polyester film having a thickness of 25 μm, and drying,
An adhesive tape was prepared with a layer of pressure sensitive adhesive having a thickness of 50 μm.
【００２９】実施例３ 単量体組成を、アクリル酸２−エチルヘキシル５０部、
アクリル酸ヘキシル２５部、Ｎ−ビニル−２−ピロリド
ン２０部、アクリル酸５部に変更した以外は、実施例１
と同様の紫外線照射により、重合率１２重量％のポリマ
―／モノマ―混合物を得た。Example 3 The monomer composition was changed to 50 parts of 2-ethylhexyl acrylate,
Example 1 except that hexyl acrylate 25 parts, N-vinyl-2-pyrrolidone 20 parts, and acrylic acid 5 parts were used.
By irradiation with ultraviolet rays in the same manner as described above, a polymer / monomer mixture having a polymerization rate of 12% by weight was obtained.
【００３０】このポリマ―／モノマ―混合物１００部
に、トリメチロ―ルプロパントリメタクリレ―ト０．１
部を添加し、混合したのち、厚さ２５μｍのポリエステ
ルフイルム上に塗布し、紫外線を照射することにより、
厚さ５０μｍの感圧接着剤の層を有する接着テ―プを作
製した。100 parts of this polymer / monomer mixture was added with 0.1 parts of trimethylolpropane trimethacrylate.
Parts, and after mixing, coating on a polyester film having a thickness of 25 μm and irradiating with ultraviolet rays,
An adhesive tape was prepared with a layer of pressure sensitive adhesive having a thickness of 50 μm.
【００３１】比較例１ 単量体組成を、アクリル酸２−エチルヘキシル７０部、
Ｎ−ビニル−２−ピロリドン３０部に変更した以外は、
実施例１と同様の紫外線照射により、重合率１４重量％
のポリマ―／モノマ―混合物を得た。Comparative Example 1 Monomer composition was changed to 70 parts of 2-ethylhexyl acrylate,
Other than changing to 30 parts of N-vinyl-2-pyrrolidone,
By the same UV irradiation as in Example 1, the polymerization rate is 14% by weight.
To obtain a polymer / monomer mixture.
【００３２】このポリマ―／モノマ―混合物１００部
に、トリメチロ―ルプロパントリメタクリレ―ト０．０
８部を添加し、混合したのち、厚さ２５μｍのポリエス
テルフイルム上に塗布し、紫外線を照射することによ
り、厚さ５０μｍの感圧接着剤の層を有する接着テ―プ
を作製した。To 100 parts of this polymer / monomer mixture was added 0.0% of trimethylolpropane trimethacrylate.
After adding and mixing 8 parts, an adhesive tape having a pressure-sensitive adhesive layer having a thickness of 50 μm was prepared by coating on a polyester film having a thickness of 25 μm and irradiating with ultraviolet rays.
【００３３】比較例２ 単量体組成を、アクリル酸イソノニル７２部、Ｎ−ビニ
ル−３−モルホリノン１０部、メタクリル酸１８部に変
更した以外は、実施例２と同様に反応させて、ポリマ―
溶液を得、さらにこの溶液を用いて、実施例２と同様に
して、厚さ５０μｍの感圧接着剤の層を有する接着テ―
プを作製した。Comparative Example 2 Polymer was prepared in the same manner as in Example 2 except that the composition of the monomer was changed to 72 parts of isononyl acrylate, 10 parts of N-vinyl-3-morpholinone and 18 parts of methacrylic acid.
A solution was obtained, and this solution was used in the same manner as in Example 2 to prepare an adhesive tape having a pressure-sensitive adhesive layer having a thickness of 50 μm.
I made a cup.
【００３４】比較例３ 単量体組成を、アクリル酸２−エチルヘキシル８０部、
アクリル酸ブチル１０部、Ｎ−ビニル−２−ピロリドン
５部、アクリル酸５部に変更した以外は、実施例１と同
様の紫外線照射により、重合率１３重量％のポリマ―／
モノマ―混合物を得た。Comparative Example 3 The monomer composition was changed to 80 parts of 2-ethylhexyl acrylate,
A polymer having a polymerization rate of 13% by weight was irradiated with the same ultraviolet rays as in Example 1 except that butyl acrylate was changed to 10 parts, N-vinyl-2-pyrrolidone was changed to 5 parts, and acrylic acid was changed to 5 parts.
A monomer mixture was obtained.
【００３５】このポリマ―／モノマ―混合物１００部
に、トリメチロ―ルプロパントリアクリレ―ト０．０８
部を添加し、混合したのち、厚さ２５μｍのポリエステ
ルフイルム上に塗布し、紫外線を照射することにより、
厚さ５０μｍの感圧接着剤の層を有する接着テ―プを作
製した。To 100 parts of this polymer / monomer mixture was added 0.08 trimethylolpropane triacrylate.
Parts, and after mixing, coating on a polyester film having a thickness of 25 μm and irradiating with ultraviolet rays,
An adhesive tape was prepared with a layer of pressure sensitive adhesive having a thickness of 50 μm.
【００３６】上記の実施例１〜３および比較例１〜３の
各接着テ―プについて、剥離接着力および保持力を、下
記の要領で測定した。結果を後記の表１に示す。With respect to the adhesive tapes of Examples 1 to 3 and Comparative Examples 1 to 3 described above, the peeling adhesive force and the holding force were measured in the following manner. The results are shown in Table 1 below.
【００３７】＜剥離接着力＞２０mm×１００mmの接着テ
―プを、被着体としてサンドペ―パ（＃２８０）でサン
デイングしたステンレス板に、２Kgのロ―ラを１往復さ
せる方法で圧着し、２０分放置後、室温（２３℃，６５
％ＲＨ）および高温（８０℃）の雰囲気下、引張速度３
００mm／分で、１８０度剥離接着力を測定した。<Peeling Adhesive Strength> An adhesive tape of 20 mm × 100 mm is pressure-bonded to a stainless steel plate sanded with a sand paper (# 280) as an adherend by a method of reciprocating a 2 kg roller once. After standing for 20 minutes, room temperature (23 ℃, 65
% RH) and high temperature (80 ° C) atmosphere, tensile speed 3
The 180 degree peel adhesion was measured at 00 mm / min.
【００３８】＜保持力＞幅１０mmの接着テ―プを、フエ
ノ―ル樹脂板に対し１０mm×２０mmの接着面積で貼り付
け、２０分経過後８０℃に２０分放置したのち、フエノ
―ル樹脂板を垂下し、接着テ―プの自由端に６００ｇの
均一荷重を負荷して、８０℃での接着テ―プの落下時間
（分）と、２４０分後のずれ量（mm）を測定した。<Holding power> An adhesive tape having a width of 10 mm was attached to a phenol resin plate with an adhesive area of 10 mm × 20 mm, and after 20 minutes, it was left at 80 ° C. for 20 minutes, and then the phenol resin was used. The plate was hung down, a uniform load of 600 g was applied to the free end of the adhesive tape, and the drop time (minute) of the adhesive tape at 80 ° C and the amount of deviation (mm) after 240 minutes were measured. .
【００３９】[0039]
【表１】 [Table 1]
【００４０】上記の表１の結果より、本発明の実施例１
〜３の接着テ―プは、接着の保持特性にすぐれ、しかも
高温での接着特性にもすぐれていることが明らかであ
る。From the results of Table 1 above, Example 1 of the present invention
It is clear that the adhesive tapes Nos. 3 to 3 have excellent adhesive holding properties and excellent adhesive properties at high temperatures.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 徳永 泰之 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 (72)発明者 北村 佳直 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 (56)参考文献 特開 昭63−150363（ＪＰ，Ａ) 特開 昭50−139135（ＪＰ，Ａ) 特公 平１−36872（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuyuki Tokunaga 1-2-2 Shimohozumi, Ibaraki City, Osaka Prefecture Nitto Denko Co., Ltd. (72) Yoshinao Kitamura 1-2-1 Shimohozumi, Ibaraki City, Osaka Prefecture No. Nitto Denko Corporation (56) Reference JP-A-63-150363 (JP, A) JP-A-50-139135 (JP, A) JP-B 1-336872 (JP, B2)
Claims (2)
中、Ｒ1 は水素またはメチル基、Ｒ2 は炭素数４〜１４
のアルキル基である）で表されるアクリル系単量体５０
〜８４重量％ ｃ）酸性基を含む単量体１〜１０重量％ ｄ）上記のａ〜ｃ成分と共重合可能な他の単量体０〜２
５重量％ からなるアクリル系重合体を主成分とすることを特徴と
する感圧接着剤。1. The following a to d components; a) General formula (1); CH 2 ═C (R 1 ) COOR 2 (wherein R 1 is hydrogen or a methyl group, R 2 is a carbon number of 4 to 14).
Which is an alkyl group of 50)
~ 84% by weight c) 1 to 10% by weight of a monomer containing an acidic group d) 0 to 2 of another monomer copolymerizable with the components a to c
A pressure-sensitive adhesive characterized in that an acrylic polymer composed of 5% by weight is a main component.
記載の感圧接着剤からなる層を有することを特徴とする
接着シ―ト類。2. An adhesive sheet having a layer comprising the pressure-sensitive adhesive according to claim 1 on one side or both sides of a support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4345447A JPH0819392B2 (en) | 1992-11-30 | 1992-11-30 | Pressure-sensitive adhesives and their adhesive sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4345447A JPH0819392B2 (en) | 1992-11-30 | 1992-11-30 | Pressure-sensitive adhesives and their adhesive sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06166858A JPH06166858A (en) | 1994-06-14 |
| JPH0819392B2 true JPH0819392B2 (en) | 1996-02-28 |
Family
ID=18376657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4345447A Expired - Lifetime JPH0819392B2 (en) | 1992-11-30 | 1992-11-30 | Pressure-sensitive adhesives and their adhesive sheets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0819392B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2118960A1 (en) * | 1993-03-16 | 1994-09-17 | Albert I. Everaerts | Pressure-sensitive adhesives having improved adhesion to acid-rain resistant automotive paints |
| WO1996004346A1 (en) * | 1994-07-29 | 1996-02-15 | Minnesota Mining And Manufacturing Company | Acrylic syrup curable to a crosslinked viscoelastomeric material |
| ES2145995T3 (en) * | 1995-02-16 | 2000-07-16 | Minnesota Mining & Mfg | ARTICLES INCORPORATING PRESSURE SENSITIVE ADHESIVES WITH IMPROVED ADHESION TO PLASTIFIED POLY- (VINYL CHLORIDE). |
| JP5746828B2 (en) * | 2010-04-02 | 2015-07-08 | スリーエム イノベイティブ プロパティズ カンパニー | Acrylic adhesive |
| JP5745829B2 (en) | 2010-12-03 | 2015-07-08 | スリーエム イノベイティブ プロパティズ カンパニー | Adhesive and adhesive tape |
| JP5836714B2 (en) * | 2011-09-07 | 2015-12-24 | スリーエム イノベイティブ プロパティズ カンパニー | Acrylic adhesive composition and acrylic adhesive tape |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50139135A (en) * | 1974-04-24 | 1975-11-06 | ||
| JPS6173781A (en) * | 1984-09-19 | 1986-04-15 | Dainippon Ink & Chem Inc | Pressure-sensitive adhesive |
| JPH0816213B2 (en) * | 1986-12-12 | 1996-02-21 | 積水化学工業株式会社 | Hydrophilic adhesive composition |
-
1992
- 1992-11-30 JP JP4345447A patent/JPH0819392B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06166858A (en) | 1994-06-14 |
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