JP4856681B2 - Glue adhesive - Google Patents
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- JP4856681B2 JP4856681B2 JP2008207601A JP2008207601A JP4856681B2 JP 4856681 B2 JP4856681 B2 JP 4856681B2 JP 2008207601 A JP2008207601 A JP 2008207601A JP 2008207601 A JP2008207601 A JP 2008207601A JP 4856681 B2 JP4856681 B2 JP 4856681B2
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- 239000000853 adhesive Substances 0.000 title claims description 103
- 230000001070 adhesive effect Effects 0.000 title claims description 103
- 239000003292 glue Substances 0.000 title 1
- 239000004925 Acrylic resin Substances 0.000 claims description 48
- 229920000178 Acrylic resin Polymers 0.000 claims description 48
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 38
- 239000011347 resin Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 24
- 239000000377 silicon dioxide Substances 0.000 claims description 19
- 239000002562 thickening agent Substances 0.000 claims description 17
- 238000004026 adhesive bonding Methods 0.000 claims description 9
- 150000001408 amides Chemical group 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000007665 sagging Methods 0.000 description 24
- 230000000694 effects Effects 0.000 description 16
- 230000002265 prevention Effects 0.000 description 12
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 229920000297 Rayon Polymers 0.000 description 7
- 239000003973 paint Substances 0.000 description 7
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 229920006026 co-polymeric resin Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 235000015067 sauces Nutrition 0.000 description 2
- 240000002129 Malva sylvestris Species 0.000 description 1
- 235000006770 Malva sylvestris Nutrition 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
本発明は、雨樋部品を相互に接合、接着して連結する雨樋用接着剤に関するものである。 The present invention relates to a rain gluing adhesive that joins and bonds gutter parts together.
従来、軒樋、竪樋、集水器、継手（例えば、エルボ、チーズ）等の雨樋部品を相互に接合、接着して連結する雨樋用接着剤として、塩化ビニル・酢酸ビニル共重合樹脂系接着剤が汎用されている。 Conventionally, vinyl chloride / vinyl acetate copolymer resin as an adhesive for rain gutters that joins, bonds and connects gutter parts such as eaves, gutters, water collectors, joints (eg elbows, cheeses) System adhesives are widely used.
しかしながら、前記塩化ビニル・酢酸ビニル共重合樹脂系接着剤は、雨樋部品を相互に接着した時の初期接着力に難点があり、又、接着剤を接着剤収容チューブから押し出した時のキレが悪く、更に、接着剤を接着面（特に、垂直接着面）に塗布した時に、接着剤が接着剤塗布面から流れ落ちる、所謂、タレを生じるという問題があった。 However, the vinyl chloride / vinyl acetate copolymer resin adhesive has a problem in initial adhesive force when gutter parts are bonded to each other, and the sharpness when the adhesive is pushed out from the adhesive containing tube is difficult. In addition, when the adhesive is applied to the adhesive surface (particularly, the vertical adhesive surface), there is a problem that the adhesive flows down from the adhesive applied surface, so-called sagging occurs.
他方、自動車車体等に高膜厚の塗膜を施すために、分散用樹脂と疎水性シリカとポリカルボン酸アマイドとを主成分とする塗料用タレ防止剤組成物を塗料に添加して、塗料塗布後の塗膜のタレを防止する技術が知られている（例えば、特許文献１参照）。
しかしながら、前記特許文献１記載の塗料に関する技術を雨樋用接着剤に適用したとしても、屋内で塗布作業を行う塗料と異なり、猛暑時等に屋外で施工作業を行う雨樋用接着剤においては、前述した従来の雨樋用接着剤の問題である初期接着力、キレ、タレ等は充分改善されないのが実情である。 However, even if the technique relating to the paint described in Patent Document 1 is applied to an adhesive for rain gutters, unlike the paint that performs the work indoors, in the adhesive for rain gutters that are installed outdoors during extreme heat, etc. In fact, the initial adhesive strength, sharpness, sagging, and the like, which are problems of the conventional rain gutter adhesive described above, are not sufficiently improved.
本発明は、かかる問題を解決することを目的とするものであり、初期接着力、接着剤収容チューブから押し出した時のキレ、接着剤塗布面からのタレ防止効果等が良好な雨樋用接着剤を提供することを課題とする。 The present invention aims to solve such a problem, and has an initial adhesive strength, a sharpness when extruded from an adhesive-containing tube, and an adhesive for raindrops with a good anti-sagging effect from the adhesive application surface. It is an object to provide an agent.
前記課題を解決するため、
請求項１に係る雨樋用接着剤は、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂とよりなる樹脂成分と、親水性シリカと、有機系増粘剤とを主成分とすることを特徴とする。
In order to solve the problem,
Adhesives gutter according to claim 1, a resin component having a weight average molecular weight of A acrylic resin and a weight average molecular weight of 300,000～340,000 become more and A acrylic resins 55,000～75,000 And hydrophilic silica and an organic thickener as main components.
請求項２に係る雨樋用接着剤は、請求項１において、樹脂成分を構成する重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂の配合比率が、重量比で４：６〜６：４である。 Adhesives gutter according to claim 2, in claim 1, weight average molecular weight constituting the resin component is A acrylic resin and a weight average molecular weight of 300,000～340,000 55,000～75,000 mixing ratio of a acrylic resin is 4 by weight ratio: 6 to 6: 4.
請求項３に係る雨樋用接着剤は、請求項１又は２において、樹脂成分と親水性シリカと有機系増粘剤の配合比率が、重量比で２２〜２８：３．５〜５．０：０．０１〜０．１である。 The adhesive for rain gutter according to claim 3 is that according to claim 1 or 2, wherein the blending ratio of the resin component, the hydrophilic silica, and the organic thickener is 22 to 28: 3.5 to 5.0 by weight. : 0.01 to 0.1.
請求項４に係る雨樋用接着剤は、請求項１〜３の何れかにおいて、有機系増粘剤が、酸アマイド系ポリマーである。 The adhesive for raindrops according to claim 4 is any one of claims 1 to 3, wherein the organic thickener is an acid amide polymer.
本発明によれば、次のような効果がある。 The present invention has the following effects.
請求項１に係る雨樋用接着剤によれば、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂とよりなる特定の樹脂成分を主成分としているので、雨樋部品を相互に接着した時の初期接着力が良好である。 According to the gutter for adhesive according to claim 1, weight average molecular weight of A acrylic resin and a weight average molecular weight of 300,000～340,000 become more and A acrylic resins 55,000～75,000 Since a specific resin component is the main component, the initial adhesive strength when gutter parts are bonded to each other is good.
又、前記特定の樹脂成分と共に、親水性シリカと有機系増粘剤とを主成分としているので、前記初期接着力と共に、接着剤を接着剤収容チューブから押し出した時のキレが良好であり、更に、接着剤を接着面（特に、垂直接着面）に塗布した時に、接着剤が塗布面から流れ落ちるおそれもなく、タレ防止効果が良好である。 Further, since the hydrophilic resin and the organic thickener are the main components together with the specific resin component, the initial adhesive force and the sharpness when extruding the adhesive from the adhesive containing tube are good, Further, when the adhesive is applied to the adhesive surface (particularly, the vertical adhesive surface), there is no risk of the adhesive flowing down from the applied surface, and the sagging prevention effect is good.
請求項２、３に係る雨樋用接着剤によれば、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂、重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂、親水性シリカ及び有機系増粘剤を特定の配合比率で配合しているので、前記請求項１の接着剤の初期接着力、キレ、タレ防止効果を最大限良好に発揮することができる。 According to the gutter for adhesive according to claim 2, the weight-average molecular weight 300,000～340,000 of A acrylic resin, weight average molecular weight of 55,000～75,000 A acrylic resin, Since the hydrophilic silica and the organic thickener are blended at a specific blending ratio, the initial adhesive force, the sharpness, and the sagging prevention effect of the adhesive of claim 1 can be exhibited to the best.
請求項４に係る雨樋用接着剤によれば、塗料等の分野で汎用されている酸アマイド系ポリマーを有機系増粘剤として使用して、接着剤の初期接着力、キレ、タレ防止効果を良好に発揮することができる。 According to the adhesive for rain gutters according to claim 4, by using an acid amide polymer widely used in the field of paint or the like as an organic thickener, the initial adhesive force, sharpness and sagging prevention effect of the adhesive Can be exhibited satisfactorily.
以下、本発明に係る雨樋用接着剤を更に詳細に説明する。 Hereinafter, the rain gluing adhesive according to the present invention will be described in more detail.
本発明に係る雨樋用接着剤は、例えば、特定のアクリル系樹脂よりなる樹脂成分と、親水性シリカと、有機系増粘剤とを主成分とすることを特徴とするものである。 The adhesive for rain gutters according to the present invention is characterized by containing, for example, a resin component made of a specific acrylic resin, hydrophilic silica, and an organic thickener as main components.
又、前記特定のアクリル系樹脂としては、例えば、アクリルモノマー、メタクリルモノマー等のアクリル系モノマーを重合反応させて製造した各種のホモポリマー、コポリマー等よりなる熱可塑性のアクリル系樹脂であり、かつ、重量平均分子量が３００，０００〜３４０，０００、好ましくは、３２０，０００程度のアクリル系樹脂と、重量平均分子量が５５，０００〜７５，０００、好ましくは、７０，０００程度のアクリル系樹脂とよりなる樹脂成分を使用する。 The specific acrylic resin is, for example, a thermoplastic acrylic resin made of various homopolymers, copolymers, etc. produced by polymerization reaction of acrylic monomers such as acrylic monomers and methacrylic monomers, and weight average molecular weight of 300,000～340,000, preferably, the a acrylic resin of about 320,000, a weight average molecular weight of 55,000～75,000, preferably 70,000 about a acrylic resin A resin component consisting of
即ち、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂とよりなる特定のアクリル系樹脂を組み合わせて使用した理由は、該特定のアクリル系樹脂を組み合わせて使用した場合には、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂との相乗作用によって、雨樋部品を相互に接着した時の初期接着力が良好になるのに対して、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂及び／又は重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂の重量平均分子量が前記特定の範囲外のアクリル系樹脂を使用した場合には、実用上満足すべき初期接着力が得られないためである。 That is, the reason for using a combination of certain acrylic resin having a weight average molecular weight of A acrylic resin and a weight average molecular weight of 300,000～340,000 become more and A acrylic resins 55,000～75,000 is , when used in combination the specific acrylic resin, a a acrylic resin having a weight average molecular weight of a acrylic resin and a weight average molecular weight of 300,000～340,000 is 55,000～75,000 by synergy, whereas the initial adhesive strength when bonding the gutters parts mutually is improved, a acrylic resin and / or weight-average molecular weight of weight average molecular weight of 300,000～340,000 is If the weight average molecular weight of a acrylic resins 55,000～75,000 was used an acrylic resin outside the range of the identified, it should be practically satisfactory first This is because the adhesive strength can not be obtained.
又、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂とよりなる樹脂成分については、前記特定の重量平均分子量と共に、雨樋用接着剤に要求される樹脂のＴｇ（℃）をも考慮して使用するのが好ましい。 Also, A acrylic resin and the weight average molecular weight of weight average molecular weight of 300,000～340,000 is for more becomes a resin component and A acrylic resins 55,000～75,000, together with the specific weight-average molecular weight The resin is preferably used in consideration of the Tg (° C.) of the resin required for the rain gutter adhesive.
即ち、前記樹脂成分を構成する特定のアクリル系樹脂は、Ｔｇ（℃）が５０〜８０℃のものを使用するのが好ましい。 That is, it is preferable to use the specific acrylic resin constituting the resin component having a Tg (° C.) of 50 to 80 ° C.
例えば、前記樹脂成分のＴｇ（℃）が５０℃未満のものを使用した場合には、雨樋用接着剤の粘着性が増大して接着性が低下することがあり、又、８０℃を超えるものを使用した場合には、雨樋用接着剤の可とう性が低下して接着性は向上するが、柔軟性が低下して雨樋用接着剤に適さなくなることがあるためである。 For example, when the resin component having a Tg (° C.) of less than 50 ° C. is used, the adhesiveness of the rain gluing adhesive may increase and the adhesiveness may decrease, and it may exceed 80 ° C. This is because, when a material is used, the flexibility of the rain gluing adhesive is lowered and the adhesion is improved, but the flexibility is lowered and may not be suitable for the gutter adhesive.
又、シリカとして前記親水性シリカを使用した理由は、該親水性シリカを使用した場合には、該親水性シリカと、該親水性シリカと併用した前記有機系増粘剤との相乗作用によって、前記特定のアクリル系樹脂と同様、初期接着力が良好になると共に、接着剤を接着剤収容チューブから押し出した時のキレが良好になり、更に、接着剤を接着面（特に、垂直接着面）に塗布した時に、接着剤が接着剤塗布面から流れ落ちるおそれもなく、タレ防止効果が良好になるのに対して、前述した特許文献１記載の塗料分野で知られている疎水性シリカを使用した場合には、該疎水性シリカと共にポリカルボン酸アマイド（有機系増粘剤）を併用しても雨樋用接着剤として実用上満足し得るようなキレ、タレ防止効果が得られず、初期接着力も実用上満足すべきものが得られないためである。 The reason why the hydrophilic silica is used as the silica is that when the hydrophilic silica is used, the hydrophilic silica and the synergistic action of the organic thickener used in combination with the hydrophilic silica Similar to the specific acrylic resin, the initial adhesive force is improved, the sharpness is improved when the adhesive is extruded from the adhesive containing tube, and the adhesive is bonded to the adhesive surface (particularly, the vertical adhesive surface). When applied to the surface, there is no risk of the adhesive flowing down from the adhesive application surface, and the sagging prevention effect is improved, whereas hydrophobic silica known in the paint field described in Patent Document 1 is used. In this case, even when polycarboxylic acid amide (organic thickener) is used in combination with the hydrophobic silica, the effect of preventing dripping and sagging that is practically satisfactory as an adhesive for rain gutters is not obtained, and initial adhesion is achieved. Power is also practically satisfactory This is because what should be can not be obtained.
又、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂の配合比率を、好ましくは、重量比で４：６〜６：４、最も好ましくは、５：５程度に調整して配合した場合には、前記接着剤の初期接着力、キレ、タレ防止効果を最大限良好に発揮することができる。 Further, the mixing ratio of A acrylic resin having a weight average molecular weight of A acrylic resin and a weight average molecular weight of 300,000～340,000 is 55,000～75,000, preferably, the weight ratio of 4: 6 When adjusted to 6: 4, most preferably about 5: 5, the initial adhesive strength, sharpness, and sagging prevention effect of the adhesive can be exhibited to the best.
又、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂とよりなる樹脂成分と親水性シリカと有機系増粘剤の配合比率を、好ましくは、重量比で２２〜２８：３．５〜５．０：０．０１〜０．１、更に好ましくは、２３〜２６：３．５〜４．５：０．０５〜０．１に調整して配合した場合には、前記接着剤の初期接着力、キレ、タレ防止効果を最大限良好に発揮することができる。 The weight average molecular weight is more becomes a resin component A acrylic resin and the weight average molecular weight of 300,000～340,000 is the A acrylic resins 55,000～75,000 and hydrophilic silica and organic thickeners The mixing ratio is preferably 22 to 28: 3.5 to 5.0: 0.01 to 0.1 by weight, more preferably 23 to 26: 3.5 to 4.5: 0.05. When adjusted to ˜0.1 and blended, the initial adhesive strength, sharpness and sagging prevention effect of the adhesive can be exhibited to the maximum.
又、前記有機系増粘剤としては、例えば、前述した特許文献１記載の塗料分野で知られているポリカルボン酸アマイド等、タレ防止効果を有するチクソトロピック剤として知られている酸アマイド系ポリマーを使用した場合には、塗料等の分野で汎用されている酸アマイド系ポリマーを有機系増粘剤として使用して、接着剤の初期接着力、キレ、タレ防止効果を良好に発揮することができる。 Examples of the organic thickener include acid amide polymers known as thixotropic agents having a sagging-preventing effect, such as the polycarboxylic acid amide known in the paint field described in Patent Document 1 described above. Can be used as an organic thickener, and the initial adhesive strength, sharpness and sagging prevention effect of the adhesive can be satisfactorily exhibited. it can.
又、本発明の雨樋用接着剤は、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂とよりなる樹脂成分と、親水性シリカと、有機系増粘剤とよりなる主成分を、シクロヘキサノン、イソブチルメチルケトン、メチルエチルケトン、トルエン、アセトン等の溶剤にて、溶解、粘度調整を行って使用する。 Moreover, the adhesive for gutter of the present invention, a resin component having a weight average molecular weight of A acrylic resin and a weight average molecular weight of 300,000～340,000 become more and A acrylic resins 55,000～75,000 In addition, a main component composed of hydrophilic silica and an organic thickener is used by dissolving and adjusting the viscosity in a solvent such as cyclohexanone, isobutyl methyl ketone, methyl ethyl ketone, toluene, and acetone.
以下、本発明に係る雨樋用接着剤を実施例に基いて説明する。 Hereinafter, the rain gluing adhesive according to the present invention will be described based on examples.
（実施例１）
重量平均分子量３２０，０００、Ｔｇ８０℃のアクリル系樹脂（三菱レイヨン株式会社製、「ダイヤナール」ＢＲ−９５）と、重量平均分子量７０，０００、Ｔｇ７５℃のアクリル系樹脂（三菱レイヨン株式会社製、「ダイヤナール」ＢＲ−６０）とを、重量比で５：５にて配合してなる樹脂成分２５重量部と、親水性シリカ（株式会社トクヤマ製、「レオロシール」ＱＳ−１０２）４．０重量部と、ポリカルボン酸アマイド（ビックケミー・ジャパン株式会社製、ＢＹＫ−４０５）０．１重量部を、シクロヘキサノン５０重量部、イソブチルメチルケトン２５重量部、メチルエチルケトン７．５重量部、トルエン１７．５重量部よりなる混合溶剤にて、溶解、粘度調整を行って、雨樋用接着剤を得た。
Example 1
The weight average molecular weight 320,000, Tg 80 ° C. of A acrylic resin (Mitsubishi Rayon Co. Ltd., "Dianal" BR-95) and a weight average molecular weight 70,000, Tg 75 ° C. of A acrylic resin (Mitsubishi Rayon 25 parts by weight of a resin component obtained by blending “Dainar” BR-60) manufactured by Co., Ltd. at a weight ratio of 5: 5, and hydrophilic silica (“Leoro Seal” QS-102, manufactured by Tokuyama Corporation) 4.0 parts by weight and 0.1 part by weight of polycarboxylic acid amide (BYK-405, manufactured by BYK Japan), cyclohexanone 50 parts by weight, isobutyl methyl ketone 25 parts by weight, methyl ethyl ketone 7.5 parts by weight, toluene Dissolution and viscosity adjustment were performed with a mixed solvent consisting of 17.5 parts by weight to obtain an adhesive for rain gutters.
得られた雨樋用接着剤について、次に示す方法で、初期接着力、キレ、タレを測定・観察した。 About the obtained adhesive for rain gutters, the initial adhesive strength, sharpness, and sagging were measured and observed by the following method.
初期接着力
サイズ１０ｃｍ×２ｃｍ、厚さ０．２ｃｍの塩化ビニル樹脂板の端部２ｃｍ×２ｃｍに雨樋用接着剤を塗布し、直ちに、他の１枚の塩化ビニル樹脂板を張り合わせる。次いで、張り合わせた端縁部からはみ出した雨樋用接着剤を柔らかい紙でふき取ると共に、張り合わせ部分の位置ずれがないように固定する。張り合わせ固定後、１０℃±３℃と、３０℃±３℃の各々の温度で１時間放置して接着した試験片を計測器に取り付け、ヘッドスピード２０ｃｍ／ｍｉｎの速さでせん断方向に引っ張って破断時の荷重値（Ｋｇｆ）を測定し、その測定値を接着面積（４ｃｍ2）で割って算出した単位面積当たりの接着強度（Ｋｇｆ／ｃｍ２）によって初期接着力を求めた。
Initial adhesive strength An adhesive for rain gutter is applied to the end 2 cm × 2 cm of a vinyl chloride resin plate having a size of 10 cm × 2 cm and a thickness of 0.2 cm, and another one vinyl chloride resin plate is immediately bonded. Next, the rain gluing adhesive protruding from the bonded edge is wiped off with a soft paper and fixed so that there is no displacement of the bonded portion. After pasting and fixing, the test piece that was allowed to stand for 1 hour at a temperature of 10 ° C. ± 3 ° C. and 30 ° C. ± 3 ° C. was attached to the measuring instrument, and pulled in the shear direction at a head speed of 20 cm / min. load value at breaking (Kgf) was measured to determine the initial adhesive strength by the adhesive strength per unit area was calculated by dividing the the measured value adhesion area (4cm 2) (Kgf / cm 2).
キレ
測定温度条件３０℃において、ガラス板上に接着剤収容チューブから雨樋用接着剤を押し出し、押し出し終了時、接着剤収容チューブの吐出口から収容した雨樋用接着剤が流れ出ないものをキレが良好、微量流れ出るものをやや不良、流れ出て垂れ下がるものを不良とした。
At a measurement temperature condition of 30 ° C, the rain gutter adhesive is extruded from the adhesive container tube onto the glass plate, and when the extrusion is finished, the gutter adhesive accommodated from the discharge port of the adhesive container tube does not flow out. Good, a small amount flowing out, a little bad, a thing flowing out and dripping was considered bad.
タレ
測定温度条件３０℃において、ガラス板上に接着剤収容チューブから雨樋用接着剤を押し出して塗布した後、ガラス板を垂直に立て、雨樋用接着剤が接着剤塗布面から流れ落ちる現象をタレといい、そのタレの長さが１．５ｍｍ以下のものをタレ防止効果良好、１．５ｍｍを超え、３．０ｍｍ未満のものをタレ防止効果やや不良、３．０ｍｍ以上のものをタレ防止効果不良とした。
Sauce Under the measurement temperature condition of 30 ° C, after applying the rain gluing adhesive from the adhesive containing tube onto the glass plate, the glass plate is set up vertically, and the rain gutter adhesive flows down from the adhesive application surface. Sauce with a length of 1.5 mm or less is excellent in sagging prevention effect, sagging prevention effect is slightly poor when it exceeds 1.5 mm and less than 3.0 mm, and sagging prevention is less than 3.0 mm The effect was considered poor.
前記測定・観察結果は、表１に示す通りである。
（実施例２）
重量平均分子量３２０，０００、Ｔｇ８０℃のアクリル系樹脂（三菱レイヨン株式会社製、「ダイヤナール」ＢＲ−９５）と、重量平均分子量５５，０００、Ｔｇ５０℃のアクリル系樹脂（ ＤＳＭ ＮｅｏＲｅｓｉｎｓ社（オランダ）製、「ネオクリル」Ｂ−７２５）とを、重量比で４：６にて配合してなる樹脂成分２５重量部と、親水性シリカ（株式会社トクヤマ製、「レオロシール」ＱＳ−１０２）４．０重量部と、ポリカルボン酸アマイド（ビックケミー・ジャパン株式会社製、ＢＹＫ−４０５）０．１重量部を、シクロヘキサノン５０重量部、イソブチルメチルケトン２５重量部、メチルエチルケトン７．５重量部、トルエン１７．５重量部よりなる混合溶剤にて、溶解、粘度調整を行って、雨樋用接着剤を得た。
The measurement / observation results are as shown in Table 1.
(Example 2)
The weight average molecular weight 320,000, Tg 80 ° C. of A acrylic resin (Mitsubishi Rayon Co. Ltd., "Dianal" BR-95) and a weight average molecular weight 55,000, Tg 50 ° C. of A acrylic resin (DSM NeoResins (Neocryl B-725) manufactured by the company (Netherlands), 25 parts by weight of a resin component blended at a weight ratio of 4: 6, and hydrophilic silica (“Leosil” QS-102, manufactured by Tokuyama Corporation). ) 4.0 parts by weight and 0.1 part by weight of polycarboxylic acid amide (BYK-405, manufactured by BYK Japan), cyclohexanone 50 parts by weight, isobutyl methyl ketone 25 parts by weight, methyl ethyl ketone 7.5 parts by weight, Dissolution and viscosity adjustment were performed with a mixed solvent consisting of 17.5 parts by weight of toluene to obtain an adhesive for rain gutters.
得られた雨樋用接着剤について、実施例１と同様の方法で、初期接着力、キレ、タレを測定・観察した結果は、表１に示す通りである。 Table 1 shows the results obtained by measuring and observing the initial adhesive strength, sharpness, and sagging of the obtained rain gutter adhesive in the same manner as in Example 1.
実施例１において、重量平均分子量２８０，０００、Ｔｇ１０５℃のアクリル系樹脂（三菱レイヨン株式会社製、「ダイヤナール」ＢＲ−８５）と、重量平均分子量６０，０００、Ｔｇ５０℃のアクリル系樹脂（三菱レイヨン株式会社製、「ダイヤナール」ＢＲ−１０７）とを使用し、他は実施例１に準じて雨樋用接着剤を得た。
In Example 1, Weight average molecular weight 280,000, Tg 105 ° C. of the acrylic resins (Mitsubishi Rayon Co. Ltd., "Dianal" BR-85) and, Weight average molecular weight of 60,000, a Tg 50 ° C. acrylic resins (Mitsubishi Rayon Co. Ltd., "Dianal" BR-107) use and others to obtain a gutter for adhesive according to example 1.
得られた雨樋用接着剤について、実施例１と同様の方法で、初期接着力、キレ、タレを測定・観察した結果は、表１に示す通りである。
（参考例２）
実施例１において、重量平均分子量３６０，０００、Ｔｇ２０℃のアクリル系樹脂（三菱レイヨン株式会社製、「ダイヤナール」ＢＲ−１０２）と、重量平均分子量８２，０００、Ｔｇ８４℃のアクリル系樹脂（三菱レイヨン株式会社製、「ダイヤナール」ＭＢ−２９５２）とを使用し、他は実施例１に準じて雨樋用接着剤を得た。
Table 1 shows the results obtained by measuring and observing the initial adhesive strength, sharpness, and sagging of the obtained rain gutter adhesive in the same manner as in Example 1.
(Reference Example 2)
In Example 1, Weight average molecular weight 360,000, Tg 20 ° C. of the acrylic resins (Mitsubishi Rayon Co. Ltd., "Dianal" BR-102) and, Weight average molecular weight 82,000, the Tg 84 ° C. acrylic resins (Mitsubishi Rayon Co. Ltd., "Dianal" MB-2952) use and others to obtain a gutter for adhesive according to example 1.
得られた雨樋用接着剤について、実施例１と同様の方法で、初期接着力、キレ、タレを測定・観察した結果は、表１に示す通りである。 Table 1 shows the results obtained by measuring and observing the initial adhesive strength, sharpness, and sagging of the obtained rain gutter adhesive in the same manner as in Example 1.
（比較例１）
比較のため、従来、汎用されている雨樋用接着剤である塩化ビニル・酢酸ビニル共重合樹脂系接着剤（松下電工株式会社製「ナショナル雨とい用接着剤」ＫＱ８８１５）について、実施例１と同様の方法で、初期接着力、キレ、タレを測定・観察した結果も表１に併記した。
(Comparative Example 1)
For comparison, with regard to a vinyl chloride / vinyl acetate copolymer resin adhesive (“National Rain Glue Adhesive” KQ8815 manufactured by Matsushita Electric Works Co., Ltd.), which is a conventionally used rain gutter adhesive, Example 1 and The results of measuring and observing the initial adhesive strength, cracking and sagging by the same method are also shown in Table 1.
表１の結果から明白なように、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂とよりなる樹脂成分と、親水性シリカと、有機系増粘剤とを主成分とする実施例１、２の雨樋用接着剤においては、初期接着力、キレ、タレ（タレ防止効果）の何れも良好であるが、重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂及び／又は重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂の重量平均分子量が前記特定の範囲外である参考例１、２の雨樋用接着剤、及び従来、汎用されている雨樋用接着剤である比較例１の塩化ビニル・酢酸ビニル共重合樹脂系接着剤においては、初期接着力、キレ、タレ（タレ防止効果）の何れもやや不良〜不良であった。 Table 1 Results As is evident, A acrylic resin and the weight average molecular weight of weight average molecular weight of 300,000～340,000 and the more becomes the resin component and A acrylic resins 55,000～75,000, In the rain gutter adhesives of Examples 1 and 2 mainly composed of hydrophilic silica and an organic thickener, initial adhesive strength, sharpness, and sagging (sag prevention effect) are all good. reference example the weight average molecular weight of a acrylic resin having a weight average molecular weight of a acrylic resin and / or weight-average molecular weight of 300,000～340,000 is 55,000～75,000 is outside the range of the specific 1 2 and the vinyl chloride / vinyl acetate copolymer resin adhesive of Comparative Example 1 which is a conventionally used rain gluing adhesive, the initial adhesive strength, sharpness, sagging (sagging) Some of the prevention effect) Was a good-bad.
Claims (4)
親水性シリカと、
有機系増粘剤とを主成分とすることを特徴とする雨樋用接着剤。 A resin component having a weight average molecular weight of A acrylic resin and a weight average molecular weight of 300,000～340,000 become more and A acrylic resins 55,000～75,000,
Hydrophilic silica,
An adhesive for rain gutter characterized by comprising an organic thickener as a main component.
樹脂成分を構成する重量平均分子量が３００，０００〜３４０，０００のアクリル系樹脂と重量平均分子量が５５，０００〜７５，０００のアクリル系樹脂の配合比率が、重量比で４：６〜６：４である雨樋用接着剤。 In claim 1,
Mixing ratio of A acrylic resin having a weight average molecular weight constituting the resin component is A acrylic resin and a weight average molecular weight of 300,000～340,000 55,000～75,000, by weight ratio of 4: 6 6: 4 rain gluing adhesive.
樹脂成分と親水性シリカと有機系増粘剤の配合比率が、重量比で２２〜２８：３．５〜５．０：０．０１〜０．１である雨樋用接着剤。 In claim 1 or 2,
An adhesive for rain gutter, wherein the blending ratio of the resin component, hydrophilic silica, and organic thickener is 22 to 28: 3.5 to 5.0: 0.01 to 0.1 by weight.
有機系増粘剤が、酸アマイド系ポリマーである雨樋用接着剤。 In any one of Claims 1-3,
An adhesive for raindrops, wherein the organic thickener is an acid amide polymer.
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