JP2001348547A - Adhesive composition and adhesive - Google Patents
Adhesive composition and adhesiveInfo
- Publication number
- JP2001348547A JP2001348547A JP2000172806A JP2000172806A JP2001348547A JP 2001348547 A JP2001348547 A JP 2001348547A JP 2000172806 A JP2000172806 A JP 2000172806A JP 2000172806 A JP2000172806 A JP 2000172806A JP 2001348547 A JP2001348547 A JP 2001348547A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- pressure
- sensitive adhesive
- adhesive composition
- natural rubber
- 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
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、粘着テープに用い
られる粘着剤、さらには該粘着剤に用いられる粘着組成
物に係り、特に粘着テープをほぐす際の巻戻力の高い粘
着剤及び該粘着剤に用いられる粘着組成物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive adhesive used for a pressure-sensitive adhesive tape, and more particularly to a pressure-sensitive adhesive composition used for the pressure-sensitive adhesive. The present invention relates to an adhesive composition used for an agent.
【０００２】[0002]
【従来の技術】従来、天然ゴムとＭＭＡ（メチルメタア
クリレート）を配合した粘着剤やこの粘着剤を積層した
粘着テープとしては、例えば、このシートをテープ状に
裁断した包装結束テープ、包帯や止血テープ、写真等の
仮止め、冷暖房設備の配線結束用シート、配管保温材止
め用シート、防食用シート等に使用されている。かかる
粘着シートの巻戻力にあっては、０．２〜０．８Ｎ／１
０ｍｍがよいとされていた（例えば特開２０００−２６
８１４号公報）。2. Description of the Related Art Conventionally, as an adhesive comprising natural rubber and MMA (methyl methacrylate) or an adhesive tape laminated with this adhesive, for example, a packaging bundling tape obtained by cutting this sheet into a tape, a bandage or a hemostat It is used for temporary fixing of tapes, photographs, etc., sheets for bundling wires for cooling and heating equipment, sheets for stopping pipe heat insulating materials, sheets for anticorrosion, and the like. The unwinding force of such an adhesive sheet is 0.2 to 0.8 N / 1.
0 mm was considered good (for example, Japanese Patent Laid-Open No. 2000-26).
814).
【０００３】[0003]
【発明が解決しようとする課題】しかし、最近、包装結
束テープ、電線結束テープ等では、使用条件が多様化
し、粘着テープをほぐす際の巻戻力の高いものが要求さ
れるようになり、具体的には６．０〜８．０Ｎ／１０ｍ
ｍの巻戻力が要求されるようになった。However, recently, the use conditions of packaging bundling tapes, wire bundling tapes, and the like have been diversified, and a material having a high unwinding force when loosening the adhesive tape has been required. 6.0-8.0N / 10m
m rewind force has been required.
【０００４】本発明の目的は、かかる目的を達成すべく
発明されたものであって、巻戻力を６．０〜８．０Ｎ／
１０ｍｍに設定した粘着剤組成物を提供するものであ
る。SUMMARY OF THE INVENTION An object of the present invention is to achieve such an object, and has an unwinding force of 6.0 to 8.0 N / N.
It is to provide a pressure-sensitive adhesive composition set to 10 mm.
【０００５】[0005]
【課題を解決する手段】本発明は、上記に鑑み発明され
たものであって、天然ゴム及び／又はＳＢＲ（スチレン
ブタジエンラバー）と、天然ゴム８０〜６０重量％とＭ
ＭＡ（メチルメタアクリレート）２０〜４０重量％がグ
ラフト共重合されたグラフト重合物を配合した粘着剤組
成物であって、該グラフト重合物のムーニー粘度を６０
〜９０Ｍｓ1+4（１００℃）に特定することにより上記
課題を解決したものである。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above, and is directed to a natural rubber and / or SBR (styrene butadiene rubber) containing 80 to 60% by weight of natural rubber and M
A pressure-sensitive adhesive composition containing a graft polymer in which 20 to 40% by weight of MA (methyl methacrylate) is graft-copolymerized, and having a Mooney viscosity of 60
The above problem has been solved by specifying a value of ~ 90Ms 1 + 4 (100 ° C).
【０００６】本発明におけるグラフト重合物は、粘着組
成物に高い巻戻力を発揮させるため採用したものであ
る。この配合比は、あまりに少ないとＭＭＡをグラフト
重合した重合物の効果が得られず、あまりに高いとグラ
フト重合物が硬くなりすぎてしまい粘着剤として使用で
きなくなるため、１０〜５０重量部が好ましい。また、
該グラフト重合物として天然ゴムとＭＭＡを配合したの
は、その分子構造中に極性のある構成分子（ＭＭＡ）と
極性のない構成分子（天然ゴム）の両方を備えることに
より高い巻戻力を発揮させるためである。そのため、両
者を適度に配分する必要があることから、該グラフト重
合物には天然ゴムを８０〜６０重量％、ＭＭＡを２０〜
４０重量％配合するのが好ましい。また、該グラフト重
合物のムーニー粘度を６０〜９０Ｍｓ1+4（１００℃）
に特定したのは、該グラフト重合物のムーニー粘度があ
まりに低いと粘着剤の流動性に対して抵抗力が弱く、高
い凝集力を得ることができず、あまりに高いと粘着剤の
凝集力が高すぎるからである。該ムーニー粘度を調整す
る手段としては、該グラフト重合物をオープンロール、
バンバリーミキサー、ニーダー等の素練りがある。[0006] The graft polymer in the present invention is employed in order to exert a high unwinding force on the pressure-sensitive adhesive composition. If the mixing ratio is too small, the effect of the polymer obtained by graft polymerization of MMA cannot be obtained, and if it is too high, the graft polymer becomes too hard and cannot be used as a pressure-sensitive adhesive. Also,
The natural rubber and MMA are blended as the graft polymer because the molecular structure has both a polar constituent molecule (MMA) and a non-polar constituent molecule (natural rubber) to exhibit high unwinding force. It is to make it. For this reason, since it is necessary to appropriately distribute the two, the graft polymer contains 80 to 60% by weight of natural rubber and 20 to 50% by weight of MMA.
It is preferable to add 40% by weight. Further, the Mooney viscosity of the graft polymer is adjusted to 60 to 90 Ms 1 + 4 (100 ° C.).
The reason is that if the Mooney viscosity of the graft polymer is too low, the resistance to the fluidity of the pressure-sensitive adhesive is weak and high cohesion cannot be obtained, and if the Mooney viscosity is too high, the cohesion of the pressure-sensitive adhesive becomes high. Because it is too much. As means for adjusting the Mooney viscosity, the graft polymer is an open roll,
There is mastication such as Banbury mixer and kneader.
【０００７】本発明における上記天然ゴムは、粘着組成
物のベースとなる素材であり、粘着組成物としての機能
を発揮するために必要なものである。また、上記ＳＢＲ
（スチレンブタジエンラバー）は、代表的汎用ゴムであ
り、耐老化性、耐クリープ特性等に優れるため採用した
ものである。これらの配合比は、９０〜５０重量部が好
ましい。[0007] The natural rubber in the present invention is a base material of the pressure-sensitive adhesive composition, and is necessary for exhibiting the function as the pressure-sensitive adhesive composition. In addition, the above SBR
(Styrene butadiene rubber) is a typical general-purpose rubber, and is employed because of its excellent aging resistance, creep resistance and the like. These compounding ratios are preferably 90 to 50 parts by weight.
【０００８】また、他の発明としての粘着剤に配合され
る粘着付与樹脂は、上記粘着組成物の巻戻力を向上させ
るものである。具体的には、ロジン系樹脂、テルペン系
樹脂、脂肪族系石油樹脂、芳香族系石油樹脂、脂環族系
石油樹脂、クロマン樹脂、スチレン系樹脂、アルキルフ
ェノール樹脂、キシレン樹脂等を使用できる。該粘着付
与剤は、あまりに少ないと高い巻戻力を発現させずあま
りに多いと巻戻力が高くなりすぎて剥離巻戻力をも高く
してしまうため、５０〜２００重量部が良い。A tackifier resin blended in a pressure-sensitive adhesive according to another aspect of the present invention improves the rewinding force of the pressure-sensitive adhesive composition. Specifically, rosin resin, terpene resin, aliphatic petroleum resin, aromatic petroleum resin, alicyclic petroleum resin, chroman resin, styrene resin, alkylphenol resin, xylene resin and the like can be used. When the amount of the tackifier is too small, a high unwinding force is not exhibited, and when the amount is too large, the unwinding force becomes too high and the peeling unwinding force is also increased.
【０００９】本発明にかかる粘着組成物に、必要に応じ
て安定剤、老化防止剤、滑剤、難燃剤、充填剤、可塑剤
又は改質剤を添加することができる。[0009] A stabilizer, an antioxidant, a lubricant, a flame retardant, a filler, a plasticizer or a modifier can be added to the pressure-sensitive adhesive composition according to the present invention, if necessary.
【００１０】本発明における粘着剤を塗工する支持体と
しては、粘着テープとして使用される従来公知のものを
採用でき、具体的には、ポリ塩化ビニル、塩化ビニル−
酢酸ビニル共重合体、塩化ビニル−エチレン共重合体、
塩化ビニル−プロピレン共重合体、塩素化ポリエチレン
等や、これらの混合物を含むものを使用できる。As the support on which the pressure-sensitive adhesive of the present invention is applied, a conventionally known support used as a pressure-sensitive adhesive tape can be employed. Specifically, polyvinyl chloride, vinyl chloride-
Vinyl acetate copolymer, vinyl chloride-ethylene copolymer,
Those containing a vinyl chloride-propylene copolymer, chlorinated polyethylene, or the like, and mixtures thereof can be used.
【００１１】本発明は、天然ゴム及び／又はＳＢＲ（ス
チレンブタジエンラバー）９０〜５０重量部、天然ゴム
８０〜６０重量％とＭＭＡ（メチルメタアクリレート）
２０〜４０重量％がグラフト共重合されたグラフト重合
物１０〜５０重量部を配合した粘着剤組成物であって、
該グラフト重合物のムーニー粘度を６０〜９０Ｍｓ1+ 4
（１００℃）にしたことにより、６．０〜８．０Ｎ／１
０ｍｍの巻戻力を有する粘着組成物を得ることができ
る。The present invention relates to a rubber composition comprising 90-50 parts by weight of natural rubber and / or SBR (styrene butadiene rubber), 80-60% by weight of natural rubber and MMA (methyl methacrylate).
20 to 40% by weight of a pressure-sensitive adhesive composition containing 10 to 50 parts by weight of a graft copolymer obtained by graft copolymerization,
The Mooney viscosity of the graft polymer is 60 to 90 Ms 1 + 4
(100 ° C.), 6.0-8.0 N / 1
An adhesive composition having a rewinding force of 0 mm can be obtained.
【００１２】[0012]
【実施例】以下、本発明の実施例について、表１を参照
しつつ、比較例と対比しながら詳細に説明する。表１
は、実施例及び比較例の粘着組成物の配合及びその特性
値を開示したものである。Hereinafter, examples of the present invention will be described in detail with reference to Table 1 and in comparison with comparative examples. Table 1
Discloses the formulations of the pressure-sensitive adhesive compositions of Examples and Comparative Examples and their characteristic values.
【００１３】[0013]
【表１】 [Table 1]
【００１４】実施例にかかる粘着組成物は、天然ゴム３
０重量部、ＳＢＲ（スチレンブタジエンラバー）４０重
量部及び天然ゴム７０重量％にＭＭＡ３０重量％をグラ
フト重合したグラフト重合物（ＭＥＧＡＰＯＬＹ３０、
ＡＳＩＡＴＩＣ社製）３０重量部をそれぞれオープンロ
ールによって素練りを行ってそれぞれのムーニー粘度を
５０Ｍｓ1+4（１００℃）、３０Ｍｓ1+4（１００℃）、
８０Ｍｓ1+4（１００℃）にしてから配合したものであ
る。なお、表１への記載は省略したが、粘着付与樹脂と
してのテルペン樹脂（ヤスハラケミカル社製ＹＳレジン
ＰＸ−１０００）１００重量部と老化防止剤としての４
エチル６−ｔｅｒｔ−ブチルフェノール（川口化学工業
社製アンテージＷ−５００）２重量部を３０重量％ベー
スになるようにトルエンに溶解してから前記粘着組成物
に配合し、これにより粘着剤を作製する。The pressure-sensitive adhesive composition according to the embodiment is a natural rubber 3
0 parts by weight, 40 parts by weight of SBR (styrene butadiene rubber) and 70% by weight of natural rubber and 30% by weight of MMA were graft-polymerized with a graft polymer (MEGAPOLY30,
30 parts by weight (made by ASIATIC Corporation) were masticated by an open roll, and their Mooney viscosities were adjusted to 50 Ms 1 + 4 (100 ° C.), 30 Ms 1 + 4 (100 ° C.),
It was blended after having reached 80 Ms 1 + 4 (100 ° C.). Although not shown in Table 1, 100 parts by weight of a terpene resin (YS resin PX-1000 manufactured by Yasuhara Chemical Co., Ltd.) as a tackifying resin and 4 parts as an antioxidant were used.
2 parts by weight of ethyl 6-tert-butylphenol (Antage W-500 manufactured by Kawaguchi Chemical Industry Co., Ltd.) are dissolved in toluene so as to be 30% by weight and then mixed with the above-mentioned pressure-sensitive adhesive composition to prepare a pressure-sensitive adhesive. .
【００１５】表１の特性値における巻戻力（単位：Ｎ／
１０ｍｍ（ニュートン／１０ミリメートル））、保持力
（凝集力）は、ＪＩＳ Ｚ ０２３７に準拠したもので
あり、その試料は、前記粘着剤をポリ塩化ビニル樹脂製
シートに塗工してから裁断したものである。The rewinding force (unit: N /
10 mm (Newton / 10 mm)), the holding force (cohesion force) conforms to JIS Z 0237, and the sample was obtained by applying the adhesive to a polyvinyl chloride resin sheet and then cutting it. It is.
【００１６】なお、比較例は、表１での記載部分以外は
該実施例と同様に作製され、測定されたものである。The comparative example was prepared and measured in the same manner as the example except for the portions described in Table 1.
【００１７】比較例１が示すように、グラフト重合物の
配合比が少ない（天然ゴム及び／又はＳＢＲの配合比が
多い）と巻戻力が低いままであり、比較例２が示すよう
に、グラフト重合物の配合比が多い（天然ゴム及び／又
はＳＢＲの配合比が少ない）と巻戻力が高くなりすぎ
た。As shown in Comparative Example 1, when the compounding ratio of the graft polymer is small (the compounding ratio of natural rubber and / or SBR is large), the unwinding force remains low, and as shown in Comparative Example 2, When the compounding ratio of the graft polymer was large (the compounding ratio of natural rubber and / or SBR was small), the rewinding force was too high.
【００１８】比較例３が示すように、グラフト重合物の
ムーニー粘度が小さいと高い凝集力が得られず保持力が
低下し、比較例４が示すように、ムーニー粘度が大きい
と凝集力が高くなりすぎ保持力が強すぎてしまった。As shown in Comparative Example 3, when the Mooney viscosity of the graft polymer is low, a high cohesive force cannot be obtained and the holding power is reduced. As shown in Comparative Example 4, when the Mooney viscosity is high, the cohesive force is high. It became too strong and the holding power was too strong.
【００１９】[0019]
【発明の効果】本発明にあっては、天然ゴム及び／又は
ＳＢＲ（スチレンブタジエンラバー）９０〜５０重量
部、天然ゴム８０〜６０重量％とＭＭＡ（メチルメタア
クリレート）２０〜４０重量％がグラフト共重合された
グラフト重合物１０〜５０重量部を配合した粘着剤組成
物であって、該グラフト重合物のムーニー粘度を６０〜
９０Ｍｓ1+4（１００℃）にし、これにより、６．０〜
８．０Ｎ／１０ｍｍの巻戻力を得ることができた。特
に、本発明の粘着物組成物は、高い巻戻力の設計が必要
なポリ塩化ビニルテープを支持体とする粘着テープの製
造に好適である。According to the present invention, 90-50 parts by weight of natural rubber and / or SBR (styrene butadiene rubber), 80-60% by weight of natural rubber and 20-40% by weight of MMA (methyl methacrylate) are grafted. A pressure-sensitive adhesive composition comprising 10 to 50 parts by weight of a copolymerized graft polymer, wherein the graft polymer has a Mooney viscosity of 60 to
90 Ms 1 + 4 (100 ° C.)
A rewinding force of 8.0 N / 10 mm was obtained. In particular, the pressure-sensitive adhesive composition of the present invention is suitable for producing a pressure-sensitive adhesive tape using a polyvinyl chloride tape as a support, which requires a high unwinding force design.
Claims (2)
タジエンラバー）９０〜５０重量部、天然ゴム８０〜６
０重量％とＭＭＡ（メチルメタアクリレート）２０〜４
０重量％がグラフト共重合されたグラフト重合物１０〜
５０重量部を配合した粘着剤組成物であって、該グラフ
ト重合物のムーニー粘度を６０〜９０Ｍｓ1+4（１００
℃）にしたことを特徴とする粘着組成物。1. Natural rubber and / or SBR (styrene butadiene rubber) 90 to 50 parts by weight, natural rubber 80 to 6
0% by weight and MMA (methyl methacrylate) 20-4
0% by weight of a graft copolymer obtained by graft copolymerization
A pressure-sensitive adhesive composition containing 50 parts by weight, wherein the graft polymer has a Mooney viscosity of 60 to 90 Ms 1 + 4 (100
C).
脂を配合した粘着剤。2. A pressure-sensitive adhesive comprising the pressure-sensitive adhesive composition according to claim 1 and a tackifier resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000172806A JP3856622B2 (en) | 2000-06-09 | 2000-06-09 | Adhesive composition and adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000172806A JP3856622B2 (en) | 2000-06-09 | 2000-06-09 | Adhesive composition and adhesive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001348547A true JP2001348547A (en) | 2001-12-18 |
| JP3856622B2 JP3856622B2 (en) | 2006-12-13 |
Family
ID=18675139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000172806A Expired - Fee Related JP3856622B2 (en) | 2000-06-09 | 2000-06-09 | Adhesive composition and adhesive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3856622B2 (en) |
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| WO2004039873A1 (en) * | 2002-10-31 | 2004-05-13 | Toyo Chemical Co., Ltd. | Tape for biding electric wire |
| JP2007204584A (en) * | 2006-02-01 | 2007-08-16 | Bridgestone Corp | Modified natural rubber, its manufacturing method, rubber composition and tire |
| WO2009139347A1 (en) * | 2008-05-14 | 2009-11-19 | 電気化学工業株式会社 | Adhesive film |
| JP2015098605A (en) * | 2007-04-05 | 2015-05-28 | ランクセス・エラストメロス・ド・ブラジル・エス・エー | Styrene-butadiene copolymer, process for preparation thereof and high cohesion adhesive composition |
| JP2016056270A (en) * | 2014-09-09 | 2016-04-21 | 矢崎総業株式会社 | Self adhesive polyvinyl chloride sheet or tape and wire harness |
| WO2018168990A1 (en) | 2017-03-15 | 2018-09-20 | デンカ株式会社 | Adhesive sheet, protective material and wiring harness |
| WO2019069577A1 (en) | 2017-10-05 | 2019-04-11 | デンカ株式会社 | Adhesive sheet, protective material, and wire harness |
| WO2020071194A1 (en) | 2018-10-01 | 2020-04-09 | デンカ株式会社 | Pressure-sensitive adhesive sheet |
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2000
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7112367B2 (en) | 2002-10-31 | 2006-09-26 | Denki Kagaku Kogyo Kabushiki Kaisha | Tape for tying electric wire |
| WO2004039873A1 (en) * | 2002-10-31 | 2004-05-13 | Toyo Chemical Co., Ltd. | Tape for biding electric wire |
| JP2007204584A (en) * | 2006-02-01 | 2007-08-16 | Bridgestone Corp | Modified natural rubber, its manufacturing method, rubber composition and tire |
| JP2015098605A (en) * | 2007-04-05 | 2015-05-28 | ランクセス・エラストメロス・ド・ブラジル・エス・エー | Styrene-butadiene copolymer, process for preparation thereof and high cohesion adhesive composition |
| KR101616142B1 (en) * | 2008-05-14 | 2016-04-27 | 덴카 주식회사 | Adhesive film |
| JP5572546B2 (en) * | 2008-05-14 | 2014-08-13 | 電気化学工業株式会社 | Adhesive film |
| KR20110011680A (en) * | 2008-05-14 | 2011-02-08 | 덴키 가가쿠 고교 가부시기가이샤 | Adhesive film |
| WO2009139347A1 (en) * | 2008-05-14 | 2009-11-19 | 電気化学工業株式会社 | Adhesive film |
| JP2016056270A (en) * | 2014-09-09 | 2016-04-21 | 矢崎総業株式会社 | Self adhesive polyvinyl chloride sheet or tape and wire harness |
| WO2018168990A1 (en) | 2017-03-15 | 2018-09-20 | デンカ株式会社 | Adhesive sheet, protective material and wiring harness |
| WO2019069577A1 (en) | 2017-10-05 | 2019-04-11 | デンカ株式会社 | Adhesive sheet, protective material, and wire harness |
| KR20200062239A (en) | 2017-10-05 | 2020-06-03 | 덴카 주식회사 | Adhesive sheet, protective material and wire harness |
| WO2020071194A1 (en) | 2018-10-01 | 2020-04-09 | デンカ株式会社 | Pressure-sensitive adhesive sheet |
| KR20210068423A (en) | 2018-10-01 | 2021-06-09 | 덴카 주식회사 | adhesive sheet |
| JPWO2020071194A1 (en) * | 2018-10-01 | 2021-09-02 | デンカ株式会社 | Adhesive sheet |
| US11920061B2 (en) | 2018-10-01 | 2024-03-05 | Denka Company Limited | Adhesive sheet |
| CN115926696A (en) * | 2022-11-07 | 2023-04-07 | 费米子(深圳)科技有限公司 | Self-adhesive glue for self-adhesive waterproof coiled material and manufacturing method thereof |
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| JP3856622B2 (en) | 2006-12-13 |
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