JP2017101121A - Chloroprene rubber-based adhesive composition - Google Patents
Chloroprene rubber-based adhesive composition Download PDFInfo
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- JP2017101121A JP2017101121A JP2015233654A JP2015233654A JP2017101121A JP 2017101121 A JP2017101121 A JP 2017101121A JP 2015233654 A JP2015233654 A JP 2015233654A JP 2015233654 A JP2015233654 A JP 2015233654A JP 2017101121 A JP2017101121 A JP 2017101121A
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- chloroprene rubber
- adhesive composition
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- butyl acetate
- based adhesive
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Abstract
Description
本発明は、クロロプレンゴム系接着剤組成物に関するものであり、より詳しくはトルエンを用いなくても接着強度と安定性が良好なクロロプレンゴム系接着剤組成物に関するものである。 The present invention relates to a chloroprene rubber adhesive composition, and more particularly to a chloroprene rubber adhesive composition having good adhesive strength and stability without using toluene.
クロロプレンゴム等をベースとした溶剤系接着剤は、その良好な作業性や接着物性から各種用途に用いられてきた。そのため、数多くのクロロプレン系接着剤が開発されている。これらのクロロプレンゴム系接着剤は、原料ゴムおよびその他の配合剤をトルエン、シクロヘキサン、アセトンなどの有機溶剤に溶解させているものがほとんどである（例えば、特許文献１〜３参照。）。 Solvent-based adhesives based on chloroprene rubber and the like have been used for various applications because of their good workability and adhesive properties. Therefore, many chloroprene adhesives have been developed. Most of these chloroprene rubber-based adhesives are obtained by dissolving raw rubber and other compounding agents in an organic solvent such as toluene, cyclohexane, and acetone (for example, see Patent Documents 1 to 3).
一方で、シックハウス症候群への対応として、ホルマリンや、トルエン、キシレンの使用ができなくなり、トルエン不含のクロロプレンゴム系接着剤が市場では要望されている。 On the other hand, as a response to sick house syndrome, formalin, toluene, and xylene cannot be used, and a toluene-free chloroprene rubber adhesive is demanded in the market.
トルエン不含のクロロプレンゴム系接着剤としては、例えば特許文献４、５など、代替溶剤をもちいるものが挙げられるが、クロロプレンゴムを単独では溶解しない溶剤が多く、トルエンを用いているものよりも接着剤物性や安定性が劣るという問題があった。 Examples of toluene-free chloroprene rubber-based adhesives include those using alternative solvents such as Patent Documents 4 and 5, but many solvents that do not dissolve chloroprene rubber alone, rather than those using toluene. There was a problem that the physical properties and stability of the adhesive were inferior.
本発明はこの問題点に鑑みてなされたものであり、接着物性および安定性に優れたクロロプレンゴム系接着剤組成物を提供するものである The present invention has been made in view of this problem, and provides a chloroprene rubber adhesive composition having excellent adhesive properties and stability.
本発明者は、このような背景の下、上記課題を解決するため鋭意検討した結果、ブチルアセテートを含むことで、トルエンを用いなくてもクロロプレン系接着剤の接着物性および安定性を向上することを知見し、本発明を完成させるに至った。 As a result of intensive studies to solve the above-mentioned problems, the present inventor has improved the adhesive properties and stability of the chloroprene adhesive without using toluene by including butyl acetate. As a result, the present invention has been completed.
すなわち本発明は、クロロプレンゴム及び溶剤を含むクロロプレンゴム系接着剤組成物であって、溶剤がブチルアセテートであり、ブチルアセテート含有量が溶剤全体の２０重量％以上であることを特徴とするクロロプレンゴム系接着剤組成物である。 That is, the present invention relates to a chloroprene rubber-based adhesive composition containing a chloroprene rubber and a solvent, wherein the solvent is butyl acetate and the butyl acetate content is 20% by weight or more of the total solvent. It is a system adhesive composition.
本発明のクロロプレンゴム系接着剤は、上記の通りすることにより、トルエンを用いなくても、接着物性と安定性に優れる接着剤を提供することができる。 By performing the chloroprene rubber adhesive of the present invention as described above, an adhesive having excellent adhesive properties and stability can be provided without using toluene.
以下、本発明について、詳細に説明する。 Hereinafter, the present invention will be described in detail.
本発明のクロロプレンゴムは、２−クロロ−１，３−ブタジエンであるクロロプレンの単量体を単独で重合して得られたもの、または、クロロプレンと共重合可能な１種類以上の単量体を用いて重合して得られたものであるである。 The chloroprene rubber of the present invention is obtained by polymerizing a monomer of chloroprene which is 2-chloro-1,3-butadiene alone, or one or more monomers copolymerizable with chloroprene. And obtained by polymerization.
クロロプレンと共重合可能な単量体としては、例えば、２，３−ジクロロ−１，３−ブタジエン、アクリロニトリル、メチルメタクリレート、ヒドロキシエチルメタクリレート、メタクリル酸等があげられる。 Examples of the monomer copolymerizable with chloroprene include 2,3-dichloro-1,3-butadiene, acrylonitrile, methyl methacrylate, hydroxyethyl methacrylate, and methacrylic acid.
溶剤としては、ブチルアセテート単独でも良いが、ブチルアセテート以外にもブチルアセテート以外のエステル系溶剤、脂肪族炭化水素系溶剤及び芳香族炭化水素系溶剤からなる群より選ばれる１つ以上の溶剤を使用する事が可能である。ブチルアセテート以外のエステル系溶剤としては、アセトン、エチルアセテート、ＭＥＫ（メチルエチルケトン）等、脂肪族炭化水素系溶剤としては、ノルマルヘキサン、シクロヘキサン等、芳香族炭化水素系溶剤としては、トルエン、キシレン等が挙げられる。溶剤としては、クロロプレンゴム系接着剤組成物の低温安定性に優れるため、シクロヘキサンを含まない方が好ましい。また、クロロプレンゴム系接着剤組成物の接着強さが低下しないため、ヘキサンまたはメチルシクロヘキサンを含まない方が好ましい。 The solvent may be butyl acetate alone, but in addition to butyl acetate, one or more solvents selected from the group consisting of ester solvents other than butyl acetate, aliphatic hydrocarbon solvents, and aromatic hydrocarbon solvents are used. It is possible to do. Examples of ester solvents other than butyl acetate include acetone, ethyl acetate, and MEK (methyl ethyl ketone). Examples of aliphatic hydrocarbon solvents include normal hexane and cyclohexane. Examples of aromatic hydrocarbon solvents include toluene and xylene. Can be mentioned. As a solvent, since the low temperature stability of a chloroprene rubber adhesive composition is excellent, it is preferable that cyclohexane is not included. Moreover, since the adhesive strength of a chloroprene rubber-type adhesive composition does not fall, it is preferable not to contain hexane or methylcyclohexane.
ブチルアセテート含有量は溶剤全体の２０重量％以上であることが必要であるが、３０重量％以上が好ましく、５０重量％〜８０重量％がより好ましい。ブチルアセテート含有量が２０重量％未満であると、クロロプレンゴム系接着剤組成物の接着性が劣る。 The butyl acetate content needs to be 20% by weight or more of the total solvent, but is preferably 30% by weight or more, and more preferably 50% by weight to 80% by weight. When the butyl acetate content is less than 20% by weight, the adhesiveness of the chloroprene rubber adhesive composition is poor.
本発明のクロロプレンゴム系接着剤組成物は、その他に、一般的に用いられる金属酸化物や粘着付与樹脂、老化防止剤等を含ませることができる。金属酸化物としては、酸化マグネシウムや酸化亜鉛が一般的には多く用いられ、粘着付与樹脂としては、アルキルフェノール樹脂や、テルペンフェノール樹脂などが用いられることが多い。 The chloroprene rubber-based adhesive composition of the present invention can contain other commonly used metal oxides, tackifying resins, antiaging agents, and the like. As the metal oxide, magnesium oxide or zinc oxide is generally used in many cases, and as the tackifying resin, an alkylphenol resin or a terpene phenol resin is often used.
本発明のクロロプレンゴム系接着剤組成物は、例えば、クロロプレンゴムを金属酸化物や粘着付与樹脂、老化防止剤などと共に、上記溶剤に混合し、撹拌して溶解させることで作成できる。 The chloroprene rubber-based adhesive composition of the present invention can be prepared, for example, by mixing chloroprene rubber with the above-mentioned solvent together with a metal oxide, a tackifier resin, an anti-aging agent, and the like, and stirring to dissolve it.
以下、本発明を実施例にて具体的に説明する。
クロロプレンゴム系接着剤組成物は下記に示す手法で作製・評価を行った。
Hereinafter, the present invention will be specifically described with reference to Examples.
The chloroprene rubber adhesive composition was prepared and evaluated by the following method.
＜接着剤の作製＞
接着剤は、表１に記載の配合剤および溶剤を所定量瓶に投入し、密栓したうえでボールミル架台にて室温下にて４８時間回転・混合させることで作製した。
<Preparation of adhesive>
Adhesives were prepared by putting predetermined amounts of the compounding agents and solvents shown in Table 1 into bottles, sealing them, and rotating and mixing them at room temperature on a ball mill stand for 48 hours.
＜低温安定性＞
作製した接着剤を、−１０℃にて２週間保管し、状態を観察した。
<Low temperature stability>
The produced adhesive was stored at −10 ° C. for 2 weeks, and the state was observed.
○：変化なし ×：高粘度化・固化
＜接着試験片作製＞
９号帆布２枚（約１５０ｍｍ×６０ｍｍ）それぞれの片面に、作製した接着剤を刷毛で約２３０ｇ／ｍ２塗布し、８０℃にて５分間乾燥した。室温で３０分放冷した後、再度接着剤を刷毛にて約９０ｇ／ｍ２塗布し、８０℃にて５分乾燥直後、もしくは、その後６０分放冷した後にハンドローラーを用いて圧着した。１５０ｍｍ×２５ｍｍのサイズに切り出したものを測定用の試験片とした。
○: No change ×: High viscosity / solidification <Adhesion test piece preparation>
About 230 g / m 2 of the prepared adhesive was applied to one side of each of No. 9 canvas (about 150 mm × 60 mm) with a brush and dried at 80 ° C. for 5 minutes. After allowing to cool at room temperature for 30 minutes, the adhesive was applied again with a brush at about 90 g / m 2 and dried at 80 ° C. for 5 minutes, or then allowed to cool for 60 minutes and then pressure-bonded using a hand roller. A test piece for measurement was cut into a size of 150 mm × 25 mm.
＜接着強さ＞
圧着２分後にテンシロン型引っ張り試験機を用いて１００ｍｍ／ｍｉｎの剥離速度で１８０°方向の引っ張りにて行った。
<Adhesive strength>
Two minutes after the pressing, the tensile test was performed in a 180 ° direction at a peeling rate of 100 mm / min using a Tensilon type tensile tester.
＜高温接着強さ＞
接着３日後に、試験片を８０℃雰囲気下にて５分間状態調整を実施し、テンシロン型引っ張り試験機を用いて８０℃の雰囲気下にて１００ｍｍ／ｍｉｎの剥離速度で１８０°方向の引っ張りにて行った。
<High temperature adhesive strength>
After 3 days of bonding, the test piece was conditioned for 5 minutes in an 80 ° C. atmosphere and pulled in a 180 ° direction at a peeling rate of 100 mm / min in an 80 ° C. atmosphere using a Tensilon type tensile tester. I went.
実施例１〜５、比較例１〜４
実施例および比較例を表１に示す。
Examples 1-5, Comparative Examples 1-4
Examples and comparative examples are shown in Table 1.
実施例では良好な安定性と接着強さが得られたことが分かる。 It can be seen that good stability and adhesive strength were obtained in the examples.
本発明のクロロプレンゴム系接着剤組成物は、家具、木工、建材など、広範囲の材料の接着分野で使用される。 The chloroprene rubber adhesive composition of the present invention is used in a wide range of materials such as furniture, woodwork, and building materials.
Claims (4)
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| JP2015233654A JP6665501B2 (en) | 2015-11-30 | 2015-11-30 | Chloroprene rubber adhesive composition |
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| JP2015233654A JP6665501B2 (en) | 2015-11-30 | 2015-11-30 | Chloroprene rubber adhesive composition |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350627A (en) * | 2004-06-14 | 2005-12-22 | Cemedine Co Ltd | Chloroprene-based adhesive composition |
| CN1952031A (en) * | 2005-10-21 | 2007-04-25 | 中国石化集团巴陵石油化工有限责任公司 | Mixed solvent for preparing neoprene adhesive |
| JP2007291188A (en) * | 2006-04-21 | 2007-11-08 | Aica Kogyo Co Ltd | High solid content solvent-based rubber adhesive |
| WO2009012545A1 (en) * | 2007-07-26 | 2009-01-29 | Oxiteno S.A. Indústria E Comércio | Toluene-free balanced solutions of solvents for contact adhesives |
| JP2012188618A (en) * | 2011-03-14 | 2012-10-04 | Denki Kagaku Kogyo Kk | Chloroprene rubber and adhesive using the same |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350627A (en) * | 2004-06-14 | 2005-12-22 | Cemedine Co Ltd | Chloroprene-based adhesive composition |
| CN1952031A (en) * | 2005-10-21 | 2007-04-25 | 中国石化集团巴陵石油化工有限责任公司 | Mixed solvent for preparing neoprene adhesive |
| JP2007291188A (en) * | 2006-04-21 | 2007-11-08 | Aica Kogyo Co Ltd | High solid content solvent-based rubber adhesive |
| WO2009012545A1 (en) * | 2007-07-26 | 2009-01-29 | Oxiteno S.A. Indústria E Comércio | Toluene-free balanced solutions of solvents for contact adhesives |
| JP2012188618A (en) * | 2011-03-14 | 2012-10-04 | Denki Kagaku Kogyo Kk | Chloroprene rubber and adhesive using the same |
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