JPH10287858A - Autohesive tacky agent and its tacky member - Google Patents

Autohesive tacky agent and its tacky member

Info

Publication number
JPH10287858A
JPH10287858A JP11345797A JP11345797A JPH10287858A JP H10287858 A JPH10287858 A JP H10287858A JP 11345797 A JP11345797 A JP 11345797A JP 11345797 A JP11345797 A JP 11345797A JP H10287858 A JPH10287858 A JP H10287858A
Authority
JP
Japan
Prior art keywords
adhesive
self
parts
pressure
weight
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
Application number
JP11345797A
Other languages
Japanese (ja)
Inventor
Naoki Kono
直樹 河野
Akira Morioka
章 森岡
Michio Kawanishi
道朗 川西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Denko Corp
Original Assignee
Nitto Denko Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nitto Denko Corp filed Critical Nitto Denko Corp
Priority to JP11345797A priority Critical patent/JPH10287858A/en
Publication of JPH10287858A publication Critical patent/JPH10287858A/en
Pending legal-status Critical Current

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  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain the subject tacky agent, having a low adhesive strength to adherends, excellent in autohesive strength and holding power between mutual tacky layers and suitable for binding, fixing for carrying, protection, etc., by including a specific base polymer, a tackifier and a polyfunctional isocyanate- based compound as essential components therein. SOLUTION: This tacky agent is obtained by including (A) 100 pts.wt. base polymer comprising a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound (e.g. a styrene-isoprene-styrene block copolymer), (B) preferably 1-150 pts.wt., especially 3-120 pts.wt. tackifier and (C) preferably 0.2-20 pts.wt., especially 0.3-18 pts.wt. polyfunctional isocyanate-based compound having >=2 isocyanate groups (e.g. tolylene diisocyanate) as essential components and preferably further including (D) <=50 pts.wt. rubber-based polymer other than the base polymer.

Description

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

【0001】[0001]

【発明の技術分野】本発明は、被着体への接着力が弱
く、粘着層同士の自着力、特にその保持力に優れて、結
束や搬送用固定や保護等の用途に好適な自着性粘着剤、
及びそれを用いた粘着部材に関する。
BACKGROUND OF THE INVENTION The present invention relates to a self-adhesive film having a low adhesive strength to an adherend and an excellent self-adhesive force between the adhesive layers, particularly excellent holding power, and suitable for use in binding, fixing for transport and protection, etc. Adhesive,
And an adhesive member using the same.

【0002】[0002]

【発明の背景】青果等の結束やその栽培時の誘引などに
用いる粘着剤には、青果等の被着体に対する接着力が弱
く、粘着層同士では強く接着して高い自着力を示す特性
が求められる。本発明者らが属するグループは先に、モ
ノビニル置換芳香族化合物・共役ジエン化合物ブロック
共重合体系ベースポリマーにアルカリ土類金属系配位キ
レート化合物を配合してなり、前記特性を示す自着性粘
着剤を提案した(特公平7−113103号公報)。
BACKGROUND OF THE INVENTION Adhesives used for binding fruits and vegetables and for attracting them during cultivation have the characteristic that they have low adhesive strength to adherends such as fruits and vegetables and that the adhesive layers adhere strongly to each other and exhibit high self-adhesive strength. Desired. The group to which the present inventors belong is a monovinyl-substituted aromatic compound / conjugated diene compound block copolymer-based base polymer blended with an alkaline earth metal-based coordination chelate compound, and a self-adhesive adhesive exhibiting the above characteristics. An agent was proposed (Japanese Patent Publication No. Hei 7-113103).

【0003】しかしながら、自着性粘着剤の用途拡大、
例えば搬送目的の物品を固定する用途の拡大などに伴っ
て新たな性能要求、すなわち自着面に引張や剪断等の応
力が長時間作用してもズレ等により剥がれない保持力向
上の性能要求が発生した。
However, the use of self-adhesive pressure-sensitive adhesives has been expanded,
For example, with the expansion of applications for fixing articles for transport purposes, new performance requirements are required, that is, a performance requirement for improving the holding force that does not peel due to misalignment even if stress such as tension or shear acts on the self-adhesive surface for a long time. Occurred.

【0004】[0004]

【発明の技術的課題】本発明は、自着性粘着剤に要求さ
れる、被着体に対する弱い接着力、かつ粘着層同士の強
い自着力の基本的性能を満足させつつ、自着面に所定の
応力が長時間作用してもズレ等により剥がれることのな
い保持力を示して自着状態の信頼性に優れる自着性粘着
剤の開発を課題とする。
SUMMARY OF THE INVENTION The present invention provides a self-adhesive surface having a low adhesive strength to an adherend and a strong self-adhesive force between adhesive layers, which are required for a self-adhesive adhesive. An object of the present invention is to develop a self-adhesive pressure-sensitive adhesive that exhibits a holding force that does not peel off due to displacement or the like even when a predetermined stress acts for a long time, and that has excellent reliability in a self-adhesive state.

【0005】[0005]

【課題の解決手段】本発明は、モノビニル置換芳香族化
合物と共役ジエン化合物のブロック共重合体からなるベ
ースポリマー、粘着付与剤、及び2個以上のイソシアネ
ート基を有する多官能イソシアネート系化合物を少なく
とも成分とすることを特徴とする自着性粘着剤、並びに
その自着性粘着剤からなる粘着層を支持基材の片面又は
両面に有することを特徴とする粘着部材を提供するもの
である。
The present invention comprises a base polymer comprising a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound, a tackifier, and a polyfunctional isocyanate compound having at least two isocyanate groups. And a pressure-sensitive adhesive member having a pressure-sensitive adhesive layer formed of the self-adhesive pressure-sensitive adhesive on one or both sides of a support substrate.

【0006】[0006]

【発明の効果】本発明によれば、多官能イソシアネート
系化合物を介したベースポリマー等の連結による分子量
の増大で、被着体に対しては弱い接着力を示し、かつ粘
着層同士では強い自着力を示すと共に、その自着面に引
張や剪断等の応力が長時間作用しても自着面のズレ等に
よる剥がれを生じにくく、高い保持力を示して自着状態
を長期に維持しその信頼性に優れる自着性粘着剤を得る
ことができる。
According to the present invention, the molecular weight is increased by the connection of a base polymer or the like via a polyfunctional isocyanate compound, so that the adhesive layer has a weak adhesive strength and the adhesive layers have a strong self-adhesion. In addition to showing the adhesive force, even if a stress such as tension or shear acts on the self-adhesive surface for a long time, the self-adhesive surface is hardly peeled off due to misalignment, etc., and shows a high holding force to maintain the self-adhesive state for a long time. A self-adhesive adhesive excellent in reliability can be obtained.

【0007】[0007]

【発明の実施形態】本発明の自着性粘着剤は、モノビニ
ル置換芳香族化合物と共役ジエン化合物のブロック共重
合体からなるベースポリマー、粘着付与剤、及び2個以
上のイソシアネート基を有する多官能イソシアネート系
化合物を少なくとも成分とするものである。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The self-adhesive pressure-sensitive adhesive of the present invention comprises a base polymer comprising a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound, a tackifier, and a polyfunctional compound having two or more isocyanate groups. At least an isocyanate compound is used as a component.

【0008】ベースポリマーに用いるブロック共重合体
としては、例えばスチレン・イソプレン・スチレンブロ
ック共重合体やスチレン・ブタジエン・スチレンブロッ
ク共重合体ないしその水添物、スチレン・イソプレンブ
ロック共重合体やスチレン・ブタジエンブロック共重合
体などで代表される如く、スチレンやα−メチルスチレ
ン、ビニルトルエンやビニルキシレンなどのモノビニル
置換芳香族化合物と、1,3−ブタジエンやイソプレン
などの共役ジエン化合物とを成分とするものがあげられ
る。ブロック共重合体は、1種又は2種以上を併用して
ベースポリマーに用いることができる。
The block copolymer used for the base polymer includes, for example, styrene / isoprene / styrene block copolymer, styrene / butadiene / styrene block copolymer or hydrogenated product thereof, styrene / isoprene block copolymer and styrene / styrene block copolymer. As represented by butadiene block copolymer and the like, styrene and α-methylstyrene, a monovinyl-substituted aromatic compound such as vinyltoluene and vinylxylene, and a conjugated diene compound such as 1,3-butadiene and isoprene There are things. The block copolymer can be used alone or in combination of two or more as the base polymer.

【0009】粘着性の向上等を目的とする粘着付与剤と
しては、例えばテルペン系樹脂、テルペン・フェノール
系等のテルペン・芳香族系樹脂、フェノール系樹脂、ク
マロンインデン系樹脂、キシレン系樹脂、ロジン系樹
脂、脂肪族系や芳香族系や脂肪族・芳香族共重合体系等
の石油系樹脂、アルキド系樹脂などの適宜なものを1種
又は2種以上用いうる。
Examples of tackifiers for the purpose of improving tackiness include terpene resins, terpene / aromatic resins such as terpene / phenol, phenolic resins, cumarone indene resins, xylene resins, Appropriate resin such as rosin resin, petroleum resin such as aliphatic, aromatic, and aliphatic / aromatic copolymers, and alkyd resin may be used alone or in combination of two or more.

【0010】粘着付与剤の配合量は、被着体に糊残りす
るような過度な接着力となることを防止する点などよ
り、ベースポリマー100重量部あたり、1〜150重
量部、就中2〜130重量部、特に3〜120重量部が
好ましい。
The amount of the tackifier is preferably 1 to 150 parts by weight, more preferably 2 to 150 parts by weight, per 100 parts by weight of the base polymer, in order to prevent an excessive adhesive force from leaving adhesive on the adherend. -130 parts by weight, particularly preferably 3-120 parts by weight.

【0011】多官能イソシアネート系化合物としては、
例えばトリレンジイソシアネートやキシリレンジイソシ
アネート、ジフェニルメチレン−4,4’−ジイソシア
ネートやヘキサメチレンジイソシアネート、ジフェニル
メタントリイソシアネート、あるいはかかる多官能イソ
シアネート等とトリメチロールプロパンやグリセリンや
ペンタエリスリトール等の多官能アルコール類との反応
物からなるトリメチロールプロパントリレンジイソシア
ネート等の、分子中に2個以上のイソシアネート基を有
する適宜な化合物の1種又は2種以上を用いうる。
As the polyfunctional isocyanate compound,
For example, tolylene diisocyanate, xylylene diisocyanate, diphenylmethylene-4,4'-diisocyanate, hexamethylene diisocyanate, diphenylmethane triisocyanate, or polyfunctional isocyanates and polyfunctional alcohols such as trimethylolpropane, glycerin and pentaerythritol. One or more suitable compounds having two or more isocyanate groups in the molecule, such as trimethylolpropane tolylene diisocyanate, which is a reactant, may be used.

【0012】多官能イソシアネート系化合物の配合量
は、自着性における保持力の向上効果や自着強度の維持
性などの点より、ベースポリマー100重量部あたり、
0.2〜20重量部、就中0.3〜18重量部が好まし
い。
The amount of the polyfunctional isocyanate compound to be added is preferably from 100 parts by weight per 100 parts by weight of the base polymer in view of the effect of improving the holding power in self-adhesiveness and the maintainability of self-adhesive strength.
0.2 to 20 parts by weight, preferably 0.3 to 18 parts by weight, is preferred.

【0013】本発明の自着性粘着剤には、粘着特性の改
良などを目的に必要に応じて、ベースポリマー以外のゴ
ム系ポリマーを1種又は2種以上配合することができ
る。そのゴム系ポリマーとしては、例えば天然ゴムやス
チレン・ブタジエンゴム、イソプレンゴムやポリイソブ
チレン、ブチルゴムやNBR、再生ゴムなどの適宜なも
のを用いうる。ゴム系ポリマーの配合量は、自着性の維
持などの点よりベースポリマー100重量部あたり、5
0重量部以下、就中40重量部以下、特に30重量部以
下が好ましい。
The self-adhesive pressure-sensitive adhesive of the present invention may contain one or more rubber-based polymers other than the base polymer, if necessary, for the purpose of improving the adhesive properties. As the rubber-based polymer, for example, an appropriate polymer such as natural rubber, styrene-butadiene rubber, isoprene rubber, polyisobutylene, butyl rubber, NBR, or recycled rubber can be used. The amount of the rubber-based polymer is 5 to 100 parts by weight of the base polymer in view of maintaining self-adhesiveness.
0 parts by weight or less, preferably 40 parts by weight or less, particularly preferably 30 parts by weight or less.

【0014】また本発明にては、必要に応じてアルカリ
土類金属からなる樹脂配位キレート化合物を配合するこ
とができる。かかる樹脂配位キレート化合物は、自着力
の向上や被着体に対する接着力の低下、粘着層のカッタ
ー切れ性の向上などを目的に用いられ、その配合量は自
着力を損なわない点などよりベースポリマー100重量
部あたり、100重量部以下、就中80重量部以下、特
に50重量部以下が好ましい。
In the present invention, a resin coordination chelate compound comprising an alkaline earth metal can be blended if necessary. Such a resin coordination chelate compound is used for the purpose of improving self-adhesive force, lowering adhesive force to an adherend, improving cutter cutting property of an adhesive layer, and the like, and its compounding amount is based on the fact that self-adhesiveness is not impaired. 100 parts by weight or less, preferably 80 parts by weight or less, particularly preferably 50 parts by weight or less, per 100 parts by weight of the polymer.

【0015】樹脂配位キレート化合物としては、例えば
マグネシウムやカルシウム、ストロンチウムやバリウム
等のアルカリ土類金属の酸化物と、水酸基やメチロール
基の如き官能基を有するフェノール系やロジン系やクマ
ロン系等の樹脂との反応物などの適宜なものを用いう
る。就中、前記した配合目的などの点よりアルキルフェ
ノール系樹脂を用いた配位キレート化合物が好ましい。
Examples of the resin coordination chelate compound include oxides of alkaline earth metals such as magnesium, calcium, strontium and barium, and phenols, rosins and cumarones having a functional group such as a hydroxyl group or a methylol group. An appropriate substance such as a reaction product with a resin can be used. Above all, a coordination chelate compound using an alkylphenol-based resin is preferred from the viewpoint of the above-mentioned blending purpose.

【0016】本発明の自着性粘着剤の調製は、例えば混
練機による方式、溶媒や分散媒等の媒体を介する方式な
どの適宜な方式で配合成分を混合することにより行うこ
とができる。その調製に際しては、例えば軟化剤や可塑
剤、酸化防止剤や紫外線吸収剤、充填剤や顔料、増量剤
などの粘着剤に使用されることのある各種の添加剤を必
要に応じて配合することができる。
The self-adhesive pressure-sensitive adhesive of the present invention can be prepared by mixing the components in an appropriate manner such as a kneader or a medium via a solvent or a dispersion medium. Upon its preparation, various additives that may be used in pressure-sensitive adhesives such as softeners, plasticizers, antioxidants and ultraviolet absorbers, fillers, pigments, extenders, and the like may be added as necessary. Can be.

【0017】本発明の粘着部材は、上記した自着性粘着
剤からなる粘着層を支持基材の片面又は両面に設けたも
のである。その形成は、例えば自着性粘着剤をロールコ
ーター法や押出溶融塗工法、カレンダーロール法等の圧
延塗工方式で支持基材上に無溶剤塗工する方法、自着性
粘着剤の溶液を支持基材上に塗工する方法やセパレータ
上に設けた自着性粘着剤からなる層を支持基材上に移着
する方法などの適宜な方法で行うことができる。
The pressure-sensitive adhesive member of the present invention has a pressure-sensitive adhesive layer comprising the above self-adhesive pressure-sensitive adhesive provided on one or both sides of a support substrate. The formation is carried out, for example, by applying a self-adhesive pressure-sensitive adhesive to a support base material by a roll coating method such as a roll coater method or an extrusion melt coating method, a calender roll method, or the like, and a solution of the self-adhesive pressure-sensitive adhesive. It can be carried out by an appropriate method such as a method of coating on a supporting substrate or a method of transferring a layer made of a self-adhesive pressure-sensitive adhesive provided on a separator to the supporting substrate.

【0018】自着性粘着剤からなる層は、支持基材の片
面又は両面においてベタ塗状に全面塗工されていてもよ
いし、筋状や点状等に部分塗工されていてもよく、その
塗工形態は任意である。粘着層の厚さは、用途等に応じ
て適宜に決定しうるが、一般には500μm以下、就中
1〜300μm、特に5〜200μmとされる。
The layer composed of the self-adhesive pressure-sensitive adhesive may be coated on one side or both sides of the supporting substrate in a solid coating, or may be partially coated in a streak or dot shape. The coating form is arbitrary. The thickness of the pressure-sensitive adhesive layer can be appropriately determined according to the use and the like, but is generally 500 μm or less, preferably 1 to 300 μm, particularly 5 to 200 μm.

【0019】支持基材としては、例えば紙や布、不織布
やプラスチックフィルム、金属箔や発泡体、あるいはそ
れらのラミネート体などの適宜なものを用いることがで
き、その材質についても、例えばクラフト紙や和紙、綿
やスフ、レーヨンやビニロン、ポリエステルやポリアミ
ド、ポリイミドやポリプロピレン、ポリ塩化ビニルやポ
リウレタン、アクリル系樹脂やセロハン、ポリエチレン
や天然ゴム、合成ゴムやアルミニウム、ステンレスなど
の適宜なものであってよい。
As the supporting substrate, any suitable material such as paper, cloth, nonwoven fabric, plastic film, metal foil or foam, or a laminate thereof can be used. Washi paper, cotton or souff, rayon or vinylon, polyester or polyamide, polyimide or polypropylene, polyvinyl chloride or polyurethane, acrylic resin or cellophane, polyethylene or natural rubber, synthetic rubber or aluminum, stainless steel or any other suitable material may be used. .

【0020】支持基材の厚さは、用途等に応じて適宜に
決定でき1mmを超えるものとする場合もあるが、一般に
は500μm以下、就中5〜300μmとされる。なお支
持基材には、粘着層との密着力の向上等を目的に下塗剤
等によるコート処理、コロナ放電処理やプラズマ処理等
の公知の表面処理を施すことができる。また片面に粘着
層を有する場合にはその支持基材の背面に、必要に応じ
てシリコーン系や長鎖アルキル系等の適宜な剥離剤から
なる剥離コート層を設けて、容易に巻戻しうる巻回形態
の粘着部材を得ることなどもできる。
The thickness of the supporting substrate can be appropriately determined according to the use and the like, and may be more than 1 mm, but is generally 500 μm or less, especially 5 to 300 μm. The support substrate may be subjected to a known surface treatment such as a coating treatment with a primer or the like, a corona discharge treatment, a plasma treatment, or the like for the purpose of improving the adhesion to the adhesive layer. In the case of having an adhesive layer on one side, a release coat layer made of an appropriate release agent such as a silicone-based or long-chain alkyl-based is provided on the back surface of the supporting substrate, if necessary, so that the film can be easily unwound. It is also possible to obtain a round adhesive member.

【0021】本発明の自着性粘着剤や粘着部材は、種々
の接着用途に用いうるが、就中その粘着層が接着強度や
保持力等の自着性に優れるので、被着体に対しては弱い
接着力を示し、粘着層同士では強い自着力を示すことが
要求される用途、例えば青果や生花等の結束、物品類を
搬送する際の固定、物品類の表面保護などに好ましく用
いることができる。
The self-adhesive pressure-sensitive adhesive and the pressure-sensitive adhesive member of the present invention can be used for various bonding applications. However, since the self-adhesive layer is excellent in self-adhesion such as adhesive strength and holding power, it can be used for an adherend. It is preferably used for applications that require low adhesive strength and strong self-adhesion between the adhesive layers, such as bundling fruits and vegetables and fresh flowers, fixing when transporting articles, and protecting the surface of articles. be able to.

【0022】[0022]

【実施例】【Example】

実施例1 スチレン・イソプレンブロック共重合体80部(重量
部、以下同じ)、スチレン・イソプレン・スチレンブロ
ック共重合体20部、スチレン・ブタジエンゴム30
部、脂肪族系石油樹脂10部、アルキルフェノール樹脂
・酸化マグネシウム系キレート化合物30部、フェノー
ル系酸化防止剤1部、及びトリメチロールプロパンヘキ
サメチレンジイソシアネート0.3部をトルエンに溶解
させて自着性粘着剤を得た。なお前記のキレート化合物
は、軟化点78℃のアルキルフェノール樹脂20部をト
ルエンに溶解させ、それに酸化マグネシウム8部と蒸留
水0.8を加えて30分間撹拌した後、常温で10時間
放置して得たものである。
Example 1 80 parts of styrene / isoprene block copolymer (parts by weight, the same applies hereinafter), 20 parts of styrene / isoprene / styrene block copolymer, and styrene / butadiene rubber 30
Part, aliphatic petroleum resin 10 parts, alkylphenol resin / magnesium oxide chelate compound 30 parts, phenolic antioxidant 1 part, and trimethylolpropane hexamethylene diisocyanate 0.3 part dissolved in toluene and self-adhesive adhesive Agent was obtained. The above chelate compound is obtained by dissolving 20 parts of an alkylphenol resin having a softening point of 78 ° C. in toluene, adding 8 parts of magnesium oxide and 0.8 of distilled water to the mixture, stirring for 30 minutes, and then leaving the mixture at room temperature for 10 hours. It is a thing.

【0023】次に、前記の自着性粘着剤を厚さ40μm
の二軸延伸ポリプロピレンフィルムの片面に塗工し、1
00℃で3分間乾燥処理して厚さ25μmの粘着層を有
する粘着部材を得た。
Next, the above self-adhesive pressure-sensitive adhesive was applied to a thickness of 40 μm.
On one side of the biaxially oriented polypropylene film
Drying treatment was performed at 00 ° C. for 3 minutes to obtain an adhesive member having an adhesive layer having a thickness of 25 μm.

【0024】実施例2 トリメチロールプロパンヘキサメチレンジイソシアネー
トの配合量を5部としたほかは、実施例1に準じて自着
性粘着剤、及び粘着部材を得た。
Example 2 A self-adhesive pressure-sensitive adhesive and a pressure-sensitive adhesive member were obtained in the same manner as in Example 1, except that the blending amount of trimethylolpropane hexamethylene diisocyanate was changed to 5 parts.

【0025】実施例3 トリメチロールプロパンヘキサメチレンジイソシアネー
トの配合量を15部としたほかは、実施例1に準じて自
着性粘着剤、及び粘着部材を得た。
Example 3 A self-adhesive adhesive and an adhesive member were obtained in the same manner as in Example 1 except that the amount of trimethylolpropane hexamethylene diisocyanate was changed to 15 parts.

【0026】実施例4 スチレン・イソプレンブロック共重合体70部、スチレ
ン・イソプレン・スチレンブロック共重合体30部、脂
肪族系石油樹脂100部、フェノール系酸化防止剤1
部、及びトリメチロールプロパンヘキサメチレンジイソ
シアネート5部をトルエンに溶解させて自着性粘着剤を
得、それを用いて実施例1に準じ粘着部材を得た。
Example 4 70 parts of styrene / isoprene block copolymer, 30 parts of styrene / isoprene / styrene block copolymer, 100 parts of aliphatic petroleum resin, phenolic antioxidant 1
And 5 parts of trimethylolpropane hexamethylene diisocyanate were dissolved in toluene to obtain a self-adhesive pressure-sensitive adhesive, which was used to obtain a pressure-sensitive adhesive member according to Example 1.

【0027】比較例1 トリメチロールプロパンヘキサメチレンジイソシアネー
トを無配合としたほかは、実施例1に準じて自着性粘着
剤、及び粘着部材を得た。
Comparative Example 1 A self-adhesive adhesive and an adhesive member were obtained in the same manner as in Example 1 except that trimethylolpropane hexamethylene diisocyanate was not used.

【0028】比較例2 トリメチロールプロパンヘキサメチレンジイソシアネー
トを無配合としたほかは、実施例4に準じて自着性粘着
剤、及び粘着部材を得た。
Comparative Example 2 A self-adhesive adhesive and an adhesive member were obtained in the same manner as in Example 4 except that trimethylolpropane hexamethylene diisocyanate was not used.

【0029】比較例3 トリメチロールプロパンヘキサメチレンジイソシアネー
トの配合量を0.1部としたほかは、実施例1に準じて
自着性粘着剤、及び粘着部材を得た。
Comparative Example 3 A self-adhesive pressure-sensitive adhesive and a pressure-sensitive adhesive member were obtained in the same manner as in Example 1 except that the blending amount of trimethylolpropane hexamethylene diisocyanate was 0.1 part.

【0030】比較例4 トリメチロールプロパンヘキサメチレンジイソシアネー
トの配合量を30部としたほかは、実施例1に準じて自
着性粘着剤、及び粘着部材を得た。
Comparative Example 4 A self-adhesive pressure-sensitive adhesive and a pressure-sensitive adhesive member were obtained in the same manner as in Example 1 except that the amount of trimethylolpropane hexamethylene diisocyanate was changed to 30 parts.

【0031】評価試験 実施例、比較例で得た粘着部材について下記の特性を調
べた。 接着力 JIS Z 0237に準拠して23℃、65%RHの
雰囲気下、粘着部材の粘着層を2kgのゴムローラを1
往復させる圧着条件でステンレス板に接着し、その接着
力を調べた(180度ピール、剥離速度300mm/
分)。
Evaluation Test The following characteristics were examined for the pressure-sensitive adhesive members obtained in Examples and Comparative Examples. Adhesive force According to JIS Z 0237, the adhesive layer of the adhesive member is placed on a 2 kg rubber roller in an atmosphere of 23 ° C. and 65% RH.
The adhesive was adhered to a stainless steel plate under reciprocating crimping conditions, and the adhesion was examined (180 degree peel, peeling speed 300 mm /
Minutes).

【0032】自着力 23℃、65%RHの雰囲気下、図1の如く支持基材1
1と粘着層12からなる粘着部材1の粘着層同士を2k
gのゴムローラを1往復させる圧着条件で接着し、自着
面の一端を少し剥がしてその両方の部材端を介し矢印の
如く180度方向に引き剥がして(剥離速度300mm/
分)、その接着力を調べた。
Self-adhesive force Under an atmosphere of 23 ° C. and 65% RH, as shown in FIG.
The adhesive layers of the adhesive member 1 comprising the adhesive layer 1 and the adhesive layer 12
g under a pressure condition of one reciprocation of the rubber roller, peeling off one end of the self-adhesive surface a little, and peeling it off in the 180-degree direction as indicated by the arrow through both ends of the member (peeling speed 300 mm /
Min), and the adhesive strength was examined.

【0033】保持力 前記に準じ粘着部材の粘着層同士の自着面の一端を少し
剥がしてその一方の部材端に500gの荷重を負荷して
1時間あたりの剥がれ距離を調べた。
Holding force One end of the self-adhesive surfaces of the adhesive layers of the adhesive member was slightly peeled off, and a load of 500 g was applied to one end of the member, and the peeling distance per hour was examined.

【0034】前記の結果を次表に示した。 *1:荷重負荷後に直ちに落下The above results are shown in the following table. * 1: Drops immediately after loading

【図面の簡単な説明】[Brief description of the drawings]

【図1】自着力測定方法の説明図FIG. 1 is an explanatory diagram of a self-adhesion force measuring method.

【符号の説明】 1:粘着部材 11:支持基材 12:粘着層[Description of Signs] 1: Adhesive member 11: Support base material 12: Adhesive layer

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 モノビニル置換芳香族化合物と共役ジエ
ン化合物のブロック共重合体からなるベースポリマー、
粘着付与剤、及び2個以上のイソシアネート基を有する
多官能イソシアネート系化合物を少なくとも成分とする
ことを特徴とする自着性粘着剤。
1. A base polymer comprising a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound,
A self-adhesive adhesive comprising at least a tackifier and a polyfunctional isocyanate compound having two or more isocyanate groups.
【請求項2】 請求項1において、ベースポリマー10
0重量部あたり、粘着付与剤1〜150重量部、多官能
イソシアネート系化合物0.2〜20重量部を含有し、
かつベースポリマー以外のゴム系ポリマーを50重量部
以下含有する自着性粘着剤。
2. The method according to claim 1, wherein the base polymer
0 parts by weight, containing 1 to 150 parts by weight of a tackifier, 0.2 to 20 parts by weight of a polyfunctional isocyanate compound,
And a self-adhesive pressure-sensitive adhesive containing 50 parts by weight or less of a rubber-based polymer other than the base polymer.
【請求項3】 請求項1又は2において、アルカリ土類
金属からなる樹脂配位キレート化合物を、ベースポリマ
ー100重量部あたり100重量部以下含有する自着性
粘着剤。
3. The self-adhesive pressure-sensitive adhesive according to claim 1, wherein the resin coordination chelate compound comprising an alkaline earth metal is contained in an amount of 100 parts by weight or less per 100 parts by weight of the base polymer.
【請求項4】 請求項1〜3に記載の自着性粘着剤から
なる粘着層を支持基材の片面又は両面に有することを特
徴とする粘着部材。
4. A pressure-sensitive adhesive member having a pressure-sensitive adhesive layer comprising the self-adhesive pressure-sensitive adhesive according to claim 1 on one or both surfaces of a supporting substrate.
JP11345797A 1997-04-14 1997-04-14 Autohesive tacky agent and its tacky member Pending JPH10287858A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11345797A JPH10287858A (en) 1997-04-14 1997-04-14 Autohesive tacky agent and its tacky member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11345797A JPH10287858A (en) 1997-04-14 1997-04-14 Autohesive tacky agent and its tacky member

Publications (1)

Publication Number Publication Date
JPH10287858A true JPH10287858A (en) 1998-10-27

Family

ID=14612733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11345797A Pending JPH10287858A (en) 1997-04-14 1997-04-14 Autohesive tacky agent and its tacky member

Country Status (1)

Country Link
JP (1) JPH10287858A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002097421A (en) * 2000-09-25 2002-04-02 Nichiban Co Ltd Pressure-sensitive adhesive tape or sheet adhering to its own back side
JP2012027071A (en) * 2010-07-20 2012-02-09 Osaka Sealing Printing Co Ltd Label continuous body
EP2639282A1 (en) 2012-03-16 2013-09-18 Nitto Denko Corporation Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet
KR20140098688A (en) 2013-01-31 2014-08-08 닛토덴코 가부시키가이샤 Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002097421A (en) * 2000-09-25 2002-04-02 Nichiban Co Ltd Pressure-sensitive adhesive tape or sheet adhering to its own back side
JP2012027071A (en) * 2010-07-20 2012-02-09 Osaka Sealing Printing Co Ltd Label continuous body
EP2639282A1 (en) 2012-03-16 2013-09-18 Nitto Denko Corporation Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet
EP2639281A1 (en) 2012-03-16 2013-09-18 Nitto Denko Corporation Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet
KR20140098688A (en) 2013-01-31 2014-08-08 닛토덴코 가부시키가이샤 Pressure-sensitive adhesive composition and pressure-sensitive adhesive sheet

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