JPS63278989A - Pressure-sensitive adhesive sheet - Google Patents
Pressure-sensitive adhesive sheetInfo
- Publication number
- JPS63278989A JPS63278989A JP11366687A JP11366687A JPS63278989A JP S63278989 A JPS63278989 A JP S63278989A JP 11366687 A JP11366687 A JP 11366687A JP 11366687 A JP11366687 A JP 11366687A JP S63278989 A JPS63278989 A JP S63278989A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- sensitive adhesive
- adhesive
- styrene
- adherend
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 42
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 32
- 150000003505 terpenes Chemical class 0.000 claims abstract description 13
- 235000007586 terpenes Nutrition 0.000 claims abstract description 13
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 150000002148 esters Chemical class 0.000 claims abstract description 7
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 6
- 229920001400 block copolymer Polymers 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 73
- 230000001070 adhesive effect Effects 0.000 claims description 73
- 239000000463 material Substances 0.000 claims description 26
- -1 Ethylene-butylene Chemical group 0.000 claims description 10
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 5
- 229920006465 Styrenic thermoplastic elastomer Polymers 0.000 claims description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 10
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 11
- 239000004417 polycarbonate Substances 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 6
- 239000004793 Polystyrene Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 229920002223 polystyrene Polymers 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 238000011179 visual inspection Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 229920004939 Cariflex™ Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は粘着シート、粘着テープに関し、特に濡れ性が
良好で耐ふくれ性を有する粘着シート。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to adhesive sheets and adhesive tapes, and particularly to adhesive sheets that have good wettability and blistering resistance.
粘着テープに関するものである。It concerns adhesive tape.
［従来の技術］
粘着シートは、基材、粘着剤、剥離基材（または被覆材
）より構成されている。基材としては、透気性がなく、
平滑なものが良好でポリエチレンテレフタレート、ポリ
塩化ビニル等のプラスチックフィルム、金属箔等が使用
される。粘着剤は、ゴム系、アクリル系、シリコーン系
とに分類できる。剥離基材は平滑なものが良好であり、
各種のものが用いられているが、ポリエチレンラミネー
ト紙、ポリエチレンテレフタレート、ポリプロピレン等
のプラスチック・フィルムが一般に使用される。[Prior Art] A pressure-sensitive adhesive sheet is composed of a base material, an adhesive, and a release base material (or coating material). As a base material, it has no air permeability.
Smooth materials are preferred, and plastic films such as polyethylene terephthalate and polyvinyl chloride, metal foils, etc. are used. Adhesives can be classified into rubber-based, acrylic-based, and silicone-based. A smooth release base material is best.
Although various materials have been used, plastic films such as polyethylene laminate paper, polyethylene terephthalate, and polypropylene are generally used.
ここで、粘着シートは粘着剤をある種の基材に塗布した
テープ状、リボン状の粘着加工品をも含むものと定義す
る。Here, the term "adhesive sheet" is defined to include tape-shaped or ribbon-shaped adhesive processed products in which a certain type of base material is coated with an adhesive.
粘着シートに使用される従来のゴム系粘着剤は、主成分
として熱可塑性エラストマー１００重量部に対して、粘
着付与樹脂８０なしい２００重量部が配合されたもので
あった。Conventional rubber pressure-sensitive adhesives used in pressure-sensitive adhesive sheets contain 100 parts by weight of a thermoplastic elastomer as a main component and 80 to 200 parts by weight of a tackifying resin.
［発明が解決しようとする問題点］
しかしながら、従来のゴム系粘着剤が塗布された粘着シ
ートから、剥離基材をはがして粘着ラベルとし、この粘
着ラベルを被着体に貼付する時は、全面にわたって粘着
ラベルの表面を加圧しないと、被着体との間で満足な粘
着性能を得ることができないという問題点を有していた
。また、貼付する際、被着体と粘着ラベルとの間に空気
を巻き込むことがある。この空気の巻き込みを防止して
粘着ラベルを被着体に貼付することは、かなりの熟練を
要する。[Problems to be Solved by the Invention] However, when the release base material is peeled off from a conventional adhesive sheet coated with a rubber-based adhesive to form an adhesive label, and this adhesive label is attached to an adherend, the entire surface is There has been a problem in that unless pressure is applied to the surface of the adhesive label over a long period of time, satisfactory adhesion performance with the adherend cannot be obtained. Furthermore, when pasting, air may be drawn in between the adherend and the adhesive label. It requires considerable skill to affix an adhesive label to an adherend while preventing this air from being entrained.
空気の巻、き込みによるふくれやしわをなくそうとする
と、ローラ等を用いて加圧する必要がある。そのために
、余分な作業工程が必要となり能率が低下する。更に、
次に述べるアウトガスの放出による経時的ふくれも問題
となっている。In order to eliminate blisters and wrinkles caused by air curling and entrainment, it is necessary to apply pressure using a roller or the like. This requires extra work steps and reduces efficiency. Furthermore,
Blistering over time due to the release of outgas, which will be described next, is also a problem.
ここでアウトガスとは、ポリカーボネート（ＰＣ：）、
ポリスチレン（ｐｓ）、アクリロニドニル−ブタジェン
−スチレン（ＡＢＳ） 、アクリロニトリル−スチレン
（＾Ｓ）、ガラス繊維強化熱可塑性プラスチック（ＦＲ
Ｐ） 、射出成型ポリプロブレン（ｐｐ）、射出成型ポ
リエチレン（ＰＥ）等の樹脂な被着体として用いる場合
に、これらの樹脂から放出されるガスを指す。Here, outgas refers to polycarbonate (PC:),
Polystyrene (PS), acrylonidonyl-butadiene-styrene (ABS), acrylonitrile-styrene (^S), glass fiber reinforced thermoplastic (FR)
P) refers to the gas released from resins such as injection molded polyproblene (PP) and injection molded polyethylene (PE) when used as adherends.
このアウトガスの成分は、樹脂の成分、作業雰囲気、加
工条件等によっても異なるが、一般に樹脂に吸着された
空気の成分である０２．Ｎ２および水蒸気であり、樹脂
がＰＳの場合にはアウトガスは残留スチレンである。The components of this outgas vary depending on the resin components, working atmosphere, processing conditions, etc., but are generally air components adsorbed by the resin. These are N2 and water vapor, and when the resin is PS, the outgas is residual styrene.
このようなアウトガスを発生する樹脂に対しては、粘着
シートから剥離基材をはがして粘着ラベルとなし、この
粘着ラベルを被着体に貼付した後、ラベル付被着体を加
熱したり、時間が経過することにより、粘着ラベルが、
被着体表面から浮き（または、ふくれ）を生じて、その
結果、外観が悪くなり、透明性も低下し、商品価値が低
下する。For resins that generate such outgas, remove the release base material from the adhesive sheet to make an adhesive label, apply this adhesive label to the adherend, and then heat the labeled adherend or heat it for a while. As time passes, the adhesive label becomes
Lifting (or blistering) occurs from the surface of the adherend, resulting in poor appearance, decreased transparency, and reduced commercial value.
そこで、粘着ラベルを加圧することなく、置いただけで
被着体に良好に貼付することができ、加熱したり、時間
が経過しても被着体との粘着性が良好で、耐ふくれ性を
有する粘着組成物が塗布された粘着シートの開発が強く
望まれていた。Therefore, the adhesive label can be successfully attached to the adherend by simply placing it on the adhesive label without applying pressure, and it maintains good adhesion to the adherend even when heated or over time, and has excellent blistering resistance. There has been a strong desire to develop a pressure-sensitive adhesive sheet coated with a pressure-sensitive adhesive composition having the following properties.
従って、本発明の目的は上述した従来の問題点を解消し
、加圧することなく、置いただけであるいは僅かな圧力
で被着体に貼付することができ、加熱したり、時間が経
過しても耐ふくれ性を有し、粘着性能が良好である粘着
組成物が塗布された粘着シートを提供することにある。Therefore, an object of the present invention is to solve the above-mentioned conventional problems, and to be able to adhere to an adherend by simply placing it or with a slight pressure without applying pressure, and even when heated or over time. An object of the present invention is to provide a pressure-sensitive adhesive sheet coated with a pressure-sensitive adhesive composition having blistering resistance and good adhesive performance.
［問題点を解決するための手段］
このような目的を達成するために、本発明の粘着シート
は、基材と粘着剤と剥離基材とを有する粘着シートであ
って、粘着剤が、主成分としてスチレン系熱可塑性エラ
ストマー１００重量部と、粘着付与樹脂８０重量部以下
とを含有することを特徴とする特
［作 用コ
本発明によれば、粘着付与樹脂がスチレンエンドブロッ
クに相溶せず、ミツドプロッタに相溶するので、スチレ
ンエンドブロックはそのまま残り、スチレンドメインを
形成するためにガス吸着性能が発現して、樹脂から放出
されるアウトガスを吸収することができる。その結果、
粘着ラベルを被着体に貼付した後、加熱や時間の経過に
よって被着体表面から粘着ラベルのふくれが発生するこ
とはなくなる。同時に粘着付与樹脂の配合量を減らした
ので、平滑平面に対する粘着ラベルの濡れ性が良好とな
り、加圧しなくても広がるように被着体表面に粘着ラベ
ルが粘着する。[Means for Solving the Problems] In order to achieve such an object, the adhesive sheet of the present invention is an adhesive sheet having a base material, an adhesive, and a release base material, in which the adhesive is mainly According to the present invention, the tackifying resin is compatible with the styrene end block. First, since it is compatible with the midplotter, the styrene end block remains as it is and develops gas adsorption performance to form styrene domains, which can absorb outgas released from the resin. the result,
After the adhesive label is attached to an adherend, the adhesive label will no longer bulge from the surface of the adherend due to heating or the passage of time. At the same time, since the amount of tackifying resin blended is reduced, the adhesive label has good wettability on a smooth surface, and the adhesive label spreads and adheres to the surface of the adherend without applying pressure.
［実施例］ 以下、本発明の実施例を詳細に説明する。[Example] Examples of the present invention will be described in detail below.
実施例１
スチレン系熱可塑性エラストマーとして直鎖スチレン−
イソプレンブロック共重合体（ＳＩＳ）（商品名カリフ
レックスＴＲ−１１１２） １００重量部、粘着付与樹
脂として完全水添テルペン樹脂（商品名クリアロンＰ−
１０５） １０重量部、酸化防止剤としてヒンダードフ
ェノール系酸化防止剤（商品名マークＡＯ−６０）２重
量部、紫外線吸収剤としてベンゾトリアゾール系紫外線
吸収剤（商品名マークＬＡ−３２） ２重量部からなる
粘着組成物をトルエン溶液に溶解し、この溶液を基材（
ポリエチレンテレフタレートフィルム厚み５０μ）に塗
布後、乾燥させ、剥離基材（ポリエチレンラミネート紙
）を貼り合わせて粘着シートを作成した。Example 1 Linear styrene as a styrenic thermoplastic elastomer
100 parts by weight of isoprene block copolymer (SIS) (trade name: Cariflex TR-1112), fully hydrogenated terpene resin (trade name: Clearon P-) as a tackifying resin
105) 10 parts by weight, 2 parts by weight of a hindered phenol antioxidant (trade name mark AO-60) as an antioxidant, 2 parts by weight of a benzotriazole ultraviolet absorber (trade name mark LA-32) as an ultraviolet absorber An adhesive composition consisting of
After coating on a polyethylene terephthalate film (thickness: 50 μm), it was dried, and a release base material (polyethylene laminate paper) was attached to prepare an adhesive sheet.
このようにして得られた粘着シートの接着力、耐ふくれ
性、および平滑平面に対する濡れ性を以下に示す方法で
試験した。The adhesive strength, blistering resistance, and wettability on a smooth surface of the pressure-sensitive adhesive sheet thus obtained were tested using the methods described below.
接着力は、ＪＩＳ ２０２３７に記載されている１８０
度引きはがし試験法に準じた。被着体としては、ＰＣ板
を用いた。粘着シートの試料幅は２５ｍｍに設定した。The adhesive strength is 180 as described in JIS 20237.
According to the peeling test method. A PC board was used as the adherend. The sample width of the adhesive sheet was set to 25 mm.
粘着ラベルをＰＣ板に貼付して２４時間経過した後、ロ
ードセル型引張試験機を用いて、剥離速度３００ｍｍ／
ｗｉｎで粘着ラベルを剥した時の抵抗値を測定し、その
平均値を求め、ｇ／２５ｍｍの単位で表した。測定雰囲
気は温度２３℃、相対湿度６５％に設定した。After 24 hours have passed since the adhesive label was pasted on the PC board, it was tested using a load cell type tensile tester at a peeling speed of 300mm/
The resistance value when the adhesive label was peeled off with Win was measured, the average value was determined, and it was expressed in units of g/25 mm. The measurement atmosphere was set at a temperature of 23° C. and a relative humidity of 65%.
耐ふくれ性は、被着体（ＰＣ板）に空気を巻き込まない
ように粘着ラベルを貼付後、８０℃の恒温槽中にラベル
付被着体を１時間放置して、恒温槽よりラベル付被着体
を取り出してふくれの有無を目視検査した。Blistering resistance was determined by attaching an adhesive label to the adherend (PC board) to prevent air from being drawn in, and then leaving the labeled adherend in a thermostatic oven at 80°C for 1 hour. The garment was removed and visually inspected for blisters.
第１図は濡れ性試験の様子を示す模式図である。濡れ性
試験を第１図を参照しつつ説明する。FIG. 1 is a schematic diagram showing the wettability test. The wettability test will be explained with reference to FIG.
５０ｍｎ＋ｘ ５０ｍｍの粘着シートから剥離基材を剥
して粘着ラベルを被着体表面上に静置して、粘着ラベル
の中央部（図中、斜線部）を押圧することで周囲に図中
の矢印に示すように濡れが広がるかどうかを目視検査し
た。上記のような方法による各種の試験結果を第１表に
示す。50mm+x Peel the release base material from a 50mm adhesive sheet, place the adhesive label on the surface of the adherend, press the center part of the adhesive label (the shaded part in the figure), and the periphery will follow the arrow in the figure. A visual inspection was made to see if the wetting spread as shown. Table 1 shows the results of various tests conducted using the methods described above.
よに週
比較のために、粘着付与樹脂（商品名クリアロンＰ−１
０５）を１００重量部に変更する以外は、実施例１に用
いたのと同じスチレン系熱可塑性エラストマー、酸化防
止剤、紫外線吸収剤を実施例１と同じ重量部でトルエン
溶液に溶解した後、実施例１と同様の手順で粘着シート
を作成した。For weekly comparison, we used tackifying resin (trade name: Clearon P-1).
After dissolving the same styrenic thermoplastic elastomer, antioxidant, and ultraviolet absorber as used in Example 1 in the same parts by weight as in Example 1 except that 05) was changed to 100 parts by weight, A pressure-sensitive adhesive sheet was created in the same manner as in Example 1.
このようにして得られた粘着シートについて実施例１と
同様に各種の試験を実施して、得られた結果を実施例１
と同じく第１表に示す。Various tests were conducted on the pressure-sensitive adhesive sheet thus obtained in the same manner as in Example 1, and the obtained results were presented in Example 1.
It is also shown in Table 1.
第 １ 表
表中に示す記号の意味
０・・・耐ふくれ性試験においては目視検査でふくれが
認められない状態を示し、濡れ性試験においては粘着ラ
ベルを置くだけで被着体に粘着する状態を示す。Table 1 Meaning of the symbols shown in the table 0: In the blistering resistance test, no blistering is observed by visual inspection, and in the wettability test, the adhesive label sticks to the adherend just by placing it. shows.
Ｘ・・・耐ふくれ性試験においては目視検査で著しくふ
くれが認められる状態を示し、濡れ性試験については自
ら濡れが広がらないことを示す。X: In the blistering resistance test, significant blistering was observed by visual inspection, and in the wettability test, it was shown that wetting did not spread on its own.
この表から、本実施例の粘着組成物が塗布された粘着ラ
ベルは加熱しても耐ふくれ性を有し、濡れ性も有し、比
較例の粘着性組成物で見られたように加熱によるふくれ
は発生せず、かつ平滑な面に加圧しなくても被着体に置
いただけで貼付することができる。しかしながら、比較
例においては、粘着付与樹脂を１００重量部添加したた
めに接着力は向上するが、加熱によってふくれが発生す
る。From this table, it can be seen that the adhesive label coated with the adhesive composition of this example has blistering resistance and wettability even when heated, and as seen with the adhesive composition of the comparative example, No blistering occurs, and the adhesive can be applied simply by placing it on an adherend without applying pressure to a smooth surface. However, in the comparative example, since 100 parts by weight of the tackifying resin was added, the adhesive strength was improved, but blistering occurred due to heating.
以上の結果より、粘着付与樹脂はスチレン系熱可覧性エ
ラストマー１００重量部に対して８０重量部以下の割合
で配合し、好ましくは５ないし４０重量部の割合で配合
するのが良い。From the above results, the tackifying resin is preferably blended in an amount of 80 parts by weight or less, preferably 5 to 40 parts by weight, per 100 parts by weight of the styrenic thermovisible elastomer.
東五伍に五
スチレン系熱可塑性エラストマーとして直鎖スチレン−
インブレンブロック共重合体（５１５）（商品名カリフ
レックスＴＲ−１１１２） １００重量部に対して、以
下第２表に示す重量部にて粘着付与樹脂として完全水添
テルペン樹脂（商品名クリアロンＰ−１０５）を添加し
てトルエン溶液に溶解する。得られた粘着剤組成物を基
材（ポリエチレンテレフタレートフィルム厚み５０μ）
に塗布後、乾燥させ、剥離基材（ポリエチレンラミネー
ト紙）と貼り合わせて粘着シートを作成した。このよう
にして得られた粘着シートから剥離基材をはがして、粘
着ラベルをアウトガスを発生するＰＣ板、ＰＳ板に貼付
後、実施例１と同様の試験方法で常態における初期接着
力および２４時間後の接着力で測定した永久接着力を求
め、３７２５ｍ１＋の単位で表わす。Linear styrene as a penta-styrene thermoplastic elastomer in Higashigogo
Fully hydrogenated terpene resin (trade name Clearon P- 105) and dissolve it in the toluene solution. The obtained adhesive composition was used as a base material (polyethylene terephthalate film thickness 50μ)
After coating, it was dried and bonded to a release base material (polyethylene laminate paper) to create an adhesive sheet. After peeling off the release base material from the pressure-sensitive adhesive sheet obtained in this way and pasting the pressure-sensitive adhesive label on a PC board or PS board that generates outgas, the initial adhesive strength under normal conditions and 24-hour test were conducted in the same manner as in Example 1. The permanent adhesive strength, measured by the subsequent adhesive strength, is determined and expressed in units of 3725 m1+.
更に、粘着ラベルを被着体であるＰＣ板およびＰＳ板に
貼付後、それぞれ８０℃および７０℃の恒温槽中に１時
間放置してから恒温槽よりラベル付被着体を取り出して
、２４時間後実施例１と同様の試験方法で接着力を求め
る
更に加えて、被着体であるＰＣ板およびＰＳ板に粘着ラ
ベルを貼付し、それぞれ８０℃および７０℃の恒温槽で
２４時間放置した後、恒温槽より粘着ラベル付被着体を
取り出してふくれの有無を目視検査する。Furthermore, after pasting the adhesive label on the adherends, PC board and PS board, they were left in a thermostat at 80°C and 70°C for 1 hour, and then the labeled adherends were taken out from the thermostat and incubated for 24 hours. After determining the adhesive strength using the same test method as in Example 1, adhesive labels were affixed to the adherends, a PC board and a PS board, and left in thermostats at 80°C and 70°C for 24 hours, respectively. , the adherend with the adhesive label is removed from the thermostatic chamber and visually inspected for the presence of blisters.
次に各種の粘着剤の主成分であるスチレン系熱可塑性エ
ラストマーおよび粘着付与樹脂の配合量、基材および剥
離基材の種類、各種の条件下での接着力の数値、および
ふくれの有無の目視検査の結果をまとめて第２表に示す
。Next, we examined the compounding amounts of styrene-based thermoplastic elastomers and tackifying resins, which are the main components of various adhesives, the types of base materials and release materials, numerical values of adhesive strength under various conditions, and visual inspection of the presence or absence of blistering. The test results are summarized in Table 2.
第 ２ 表
第２表から、加熱後の接着力は、常態における永久接着
力よりも相当大きく、加熱により接着力が向上している
ことを表している。なお、上表により加熱してもふくれ
が起きないことがわかる。Table 2 From Table 2, the adhesive strength after heating was considerably greater than the permanent adhesive strength in the normal state, indicating that the adhesive strength was improved by heating. Furthermore, from the table above, it can be seen that no blistering occurs even when heated.
本実施例においては、スチレン系熱可塑性エラストマー
として直鎖スチレン−イソプレンブロック共重合体（５
１５）を選択したが、スチレン−ブタジエンブロック共
重合体（ＳＢＳ）、スチレン−エチレン−ブチレンブロ
ック共重合体（ＳＥＢＳ）も通用可能である。この場合
、粘着付与樹脂がスチレンエンドブロックに相溶せずに
、ミツドブロックに相溶し、スチレンエンドブロックは
そのまま残りスチレンドメインを形成するので、ガス吸
着性能が発現する。In this example, a linear styrene-isoprene block copolymer (5
Although 15) was selected, styrene-butadiene block copolymer (SBS) and styrene-ethylene-butylene block copolymer (SEBS) can also be used. In this case, the tackifier resin is not compatible with the styrene end blocks but is compatible with the mid blocks, and the styrene end blocks remain as they are to form styrene domains, so that gas adsorption performance is exhibited.
粘着付与樹脂としては、テルペン樹脂、変性テルペン樹
脂、水添テルペン樹脂１石油樹脂、水添石油樹脂、ロジ
ン、水添ロジン、ロジンエステルまたは水添ロジンエス
テルがあげられるが、好ましくはテルペン樹脂、変性テ
ルペン樹脂、水添テルペン樹脂、水添石油樹脂または水
添ロジンエステルが良い。Examples of the tackifying resin include terpene resins, modified terpene resins, hydrogenated terpene resins, petroleum resins, hydrogenated petroleum resins, rosins, hydrogenated rosins, rosin esters, and hydrogenated rosin esters, but preferably terpene resins, modified terpene resins, and hydrogenated rosin esters. Terpene resins, hydrogenated terpene resins, hydrogenated petroleum resins or hydrogenated rosin esters are preferred.
なお、本実施例においては粘着剤を基材に塗布した後、
剥離基材と貼り合わせたが、粘着剤を剥離基材に塗布し
て基材と貼り合わせる転写法も使用できることは勿論で
ある。In addition, in this example, after applying the adhesive to the base material,
Although the adhesive was bonded to a release base material, it goes without saying that a transfer method in which an adhesive is applied to a release base material and the adhesive is bonded to the base material can also be used.
［発明の効果］
以上説明したように、本発明によれば、粘着付与樹脂が
スチレンエンドブロックに相溶せず、ミツドブロックに
相溶するので、スチレンエンドブロックはそのまま残り
、スチレンドメインを形成するためにガス吸着性能が発
現して、樹脂から放出されるアウトガスを吸収すること
ができる。その結果、粘着ラベルを被着体に貼付した後
、加熱や時間の経過によって被着体表面からふくれが発
生することはなくなる。同時に粘着付与樹脂の配合量を
減らしたので、平滑平面に対する粘着ラベルの濡れ性が
良好となり、加圧しなくても広がるように被着体表面に
粘着ラベルが粘着する。[Effects of the Invention] As explained above, according to the present invention, the tackifier resin is not compatible with the styrene end blocks but is compatible with the mid blocks, so the styrene end blocks remain as they are and form styrene domains. Therefore, gas adsorption performance is developed and outgas released from the resin can be absorbed. As a result, after the adhesive label is attached to an adherend, blistering does not occur on the surface of the adherend due to heating or the passage of time. At the same time, since the amount of tackifying resin blended is reduced, the adhesive label has good wettability on a smooth surface, and the adhesive label spreads and adheres to the surface of the adherend without applying pressure.
本発明の粘着剤組成物は、以上のような特性を有するの
で、アウトガスを放出する樹脂からなる被着体、すなわ
ち二輪車サイドカバー（ＡＢＳ製、ＰＰ製、ＰＥ製等）
、船外機カバー（ＦＲＰ製）、カセットテープケース（
ＰＳ製等）等に粘着ラベルを貼付して加熱してもふくれ
は起こらず、被着体との粘着性能も良好となる。Since the adhesive composition of the present invention has the above-mentioned properties, it can be used as an adherend made of a resin that releases outgas, that is, a motorcycle side cover (made of ABS, PP, PE, etc.).
, outboard motor cover (made of FRP), cassette tape case (
Even if an adhesive label is applied to a material (such as PS) and heated, no blistering will occur, and the adhesion performance with the adherend will be good.
更に、本発明の粘着組成物が塗布された粘着シートは、
ふくれやしわが生じないので外観性が向上し、装飾効果
を増し、商品価値は向上する。Furthermore, the adhesive sheet coated with the adhesive composition of the present invention is
Since no blisters or wrinkles occur, the appearance is improved, the decorative effect is increased, and the product value is increased.
更に加えて、被着体は平滑な表面を有する金属、ガラス
、セラミックスであってもよいことは勿論である。Furthermore, it goes without saying that the adherend may be a metal, glass, or ceramic having a smooth surface.
第１図は濡れ性試験の様子を示す模式図である。 FIG. 1 is a schematic diagram showing the wettability test.
Claims (1)
って、 前記粘着剤が、主成分としてスチレン系熱可塑性エラス
トマー１００重量部と、粘着付与樹脂８０重量部以下と
を含有することを特徴とする粘着シート。 ２）前記スチレン系熱可塑性エラストマーが、スチレン
−イソプレンブロック共重合体（ＳＩＳ）、スチレン−
エチレン−ブチレンブロック共重合体（ＳＥＢＳ）、ま
たはスチレン−ブタジエンブロック共重合体（ＳＢＳ）
であることを特徴とする特許請求の範囲第１項に記載の
粘着シート。 ３）前記粘着付与樹脂が、水添テルペン樹脂、テルペン
樹脂、変性テルペン樹脂、石油樹脂、水添石油樹脂、ロ
ジン、水添ロジン、ロジンエステルまたは水添ロジンエ
ステルであることを特徴とする特許請求の範囲第１項ま
たは第２項に記載の粘着シート。[Scope of Claims] 1) A pressure-sensitive adhesive sheet having a base material, an adhesive, and a release base material, wherein the pressure-sensitive adhesive contains 100 parts by weight of a styrene thermoplastic elastomer and 80 parts by weight of a tackifying resin as main components. An adhesive sheet characterized by containing the following. 2) The styrenic thermoplastic elastomer is a styrene-isoprene block copolymer (SIS), a styrene-isoprene block copolymer (SIS),
Ethylene-butylene block copolymer (SEBS) or styrene-butadiene block copolymer (SBS)
The pressure-sensitive adhesive sheet according to claim 1, characterized in that: 3) A patent claim characterized in that the tackifier resin is a hydrogenated terpene resin, a terpene resin, a modified terpene resin, a petroleum resin, a hydrogenated petroleum resin, a rosin, a hydrogenated rosin, a rosin ester, or a hydrogenated rosin ester. The pressure-sensitive adhesive sheet according to item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11366687A JPS63278989A (en) | 1987-05-12 | 1987-05-12 | Pressure-sensitive adhesive sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11366687A JPS63278989A (en) | 1987-05-12 | 1987-05-12 | Pressure-sensitive adhesive sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63278989A true JPS63278989A (en) | 1988-11-16 |
Family
ID=14618083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11366687A Pending JPS63278989A (en) | 1987-05-12 | 1987-05-12 | Pressure-sensitive adhesive sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63278989A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03247682A (en) * | 1990-02-26 | 1991-11-05 | Soken Kagaku Kk | Protective sheet for information recording paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5372047A (en) * | 1976-12-08 | 1978-06-27 | Asahi Chem Ind Co Ltd | Hot-melt adhesive composition |
| JPS54126243A (en) * | 1978-03-25 | 1979-10-01 | Nitto Electric Ind Co Ltd | Preparation of surface-protecting film |
| JPS5626968A (en) * | 1979-07-13 | 1981-03-16 | Nichiban Co Ltd | Adhesive tape for bundling raw vegetable of flower |
-
1987
- 1987-05-12 JP JP11366687A patent/JPS63278989A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5372047A (en) * | 1976-12-08 | 1978-06-27 | Asahi Chem Ind Co Ltd | Hot-melt adhesive composition |
| JPS54126243A (en) * | 1978-03-25 | 1979-10-01 | Nitto Electric Ind Co Ltd | Preparation of surface-protecting film |
| JPS5626968A (en) * | 1979-07-13 | 1981-03-16 | Nichiban Co Ltd | Adhesive tape for bundling raw vegetable of flower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03247682A (en) * | 1990-02-26 | 1991-11-05 | Soken Kagaku Kk | Protective sheet for information recording paper |
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