JP3328874B2 - Bonding method - Google Patents
Bonding methodInfo
- Publication number
- JP3328874B2 JP3328874B2 JP09426997A JP9426997A JP3328874B2 JP 3328874 B2 JP3328874 B2 JP 3328874B2 JP 09426997 A JP09426997 A JP 09426997A JP 9426997 A JP9426997 A JP 9426997A JP 3328874 B2 JP3328874 B2 JP 3328874B2
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- solution containing
- bonding
- nucleating agent
- bonding method
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 21
- 239000002667 nucleating agent Substances 0.000 claims description 20
- 230000008023 solidification Effects 0.000 claims description 14
- 238000007711 solidification Methods 0.000 claims description 14
- 239000004831 Hot glue Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000001993 wax Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229920005862 polyol Polymers 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- -1 acrylic polyol Chemical class 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000013008 moisture curing Methods 0.000 description 2
- 239000004209 oxidized polyethylene wax Substances 0.000 description 2
- 235000013873 oxidized polyethylene wax Nutrition 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920005906 polyester polyol Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000005062 Polybutadiene Chemical class 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 125000005370 alkoxysilyl group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002857 polybutadiene Chemical class 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、初期の接着強さを
要求される部材の接着、例えば自動車のドアおよび天井
等の曲面をなす基材に表面布を貼合せる等の工法へ、有
効利用を意図した接着工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is effectively applied to the bonding of members requiring an initial bonding strength, for example, to a method of bonding a surface cloth to a curved base material such as an automobile door and a ceiling. The bonding method intended.
【０００２】[0002]
【従来の技術】従来、自動車のドアおよび天井等の基材
への表面布の接着には、溶剤系接着剤が使用されてき
た。結晶性を有する湿気硬化形反応性ホットメルト接着
剤（以下Ｒ−ＨＭと略す）は、無溶剤、結晶固化による
短時間接着、および湿気硬化による耐熱性の発現等の長
所を有するため、従来の溶剤系接着剤に代わって使用さ
れる傾向にある。2. Description of the Related Art Conventionally, a solvent-based adhesive has been used for bonding a surface cloth to a base material such as an automobile door and ceiling. A moisture-curable reactive hot melt adhesive having crystallinity (hereinafter abbreviated as R-HM) has advantages such as no solvent, short-time adhesion by crystallization solidification, and development of heat resistance by moisture curing. They tend to be used instead of solvent-based adhesives.
【０００３】[0003]
【発明が解決しようとする課題】ところが、Ｒ−ＨＭの
初期凝集力の発現機構である結晶固化時間は、室温の上
昇に伴って長くなり、気温の高い夏季には、ラインタク
ト内で固化が達成されなくなるという問題があった。一
方、固化を早める目的でＲ−ＨＭ自身の結晶性を高める
と、気温の低い時期に、必要なオープンタイム（貼合せ
可能時間）が確保できず、また被着体への接着性が低下
するという欠点が生じた。本発明は、このような事情に
鑑みなされたもので、接着作業が極めて簡単で、気温の
高い時期にも有効な固化時間を達成し、必要な初期凝集
力を発現させることにより、高い接着信頼性の得られる
接着工法を提供することを目的とする。However, the crystallization solidification time, which is the mechanism of developing the initial cohesive force of R-HM, becomes longer as the room temperature rises, and in summer when the temperature is high, solidification occurs within the line tact. There was a problem that it would not be achieved. On the other hand, if the crystallinity of the R-HM itself is increased for the purpose of accelerating the solidification, the required open time (the time that can be pasted) cannot be secured in a low temperature period, and the adhesion to the adherend decreases. The disadvantage occurred. The present invention has been made in view of such circumstances, and the bonding operation is extremely simple, achieving an effective solidification time even in a high temperature period, and expressing a necessary initial cohesive force, thereby achieving high bonding reliability. It is an object of the present invention to provide a bonding method capable of obtaining properties.
【０００４】[0004]
【課題を解決するための手段】本発明の接着工法は、Ｒ
−ＨＭと、造核剤を含む水溶液を塗布して接着すること
を特徴とする。Means for Solving the Problems The bonding method of the present invention uses
-An HM and an aqueous solution containing a nucleating agent are applied and bonded.
【０００５】すなわち、本発明者らは、上記従来技術の
欠点を克服すべく鋭意研究を重ねた結果、被着体の少な
くとも一方に、Ｒ−ＨＭを塗布し、次に、その接着剤面
に造核剤を含む水溶液を塗布、または、Ｒ−ＨＭと、造
核剤を含む水溶液を同時に塗布して接着することによ
り、前記の問題が解決され、気温の高い時期にも所望の
固化時間が達成され、優れた接着性の得られることを見
いだし、本発明を完成させるに至った。That is, the present inventors have conducted intensive studies to overcome the above-mentioned disadvantages of the prior art, and as a result, applied R-HM to at least one of the adherends and then applied the R-HM to the adhesive surface. By applying an aqueous solution containing a nucleating agent or simultaneously applying and bonding the R-HM and an aqueous solution containing a nucleating agent, the above-mentioned problem is solved. It has been found that the present invention has been achieved and excellent adhesiveness has been obtained, and the present invention has been completed.
【０００６】本発明に用いるＲ−ＨＭとは、水分と反応
する官能基を分子末端に有するプレポリマーを成分中に
有し、かつ塗布時には、加熱溶融して用い、貼合せ後に
結晶固化する湿気硬化形の反応性ホットメルト接着剤を
指称する。例えば、具体的には、常温固形のポリエステ
ルポリオール、ポリエーテルポリオール、アクリルポリ
オール、ロジン変性ポリオール、ポリブタジエンポリオ
ール、ポリイソプレンポリオール、またはこれらの水添
品、ポリエチレンブチレンポリオール等の１種または２
種以上に、ポリイソシアネート化合物またはアルコキシ
シリル基含有化合物を付加または共重合させて得られる
プレポリマーを主成分とする。このようなＲ−ＨＭは、
塗布温度８０〜１４０℃において、１０００〜５０００
０ｃＰの粘度を有するのが好ましい。粘度が１０００ｃ
Ｐ未満では、結晶固化時の凝集力が低く、５００００ｃ
Ｐを超えると良好な塗布が行えないという欠点があるた
めである。[0006] The R-HM used in the present invention refers to a moisture containing a prepolymer having a functional group which reacts with moisture at a molecular terminal in a component and heated and melted at the time of coating, and solidified after bonding. Curable reactive hot melt adhesive. For example, specifically, one or two of room temperature solid polyester polyol, polyether polyol, acrylic polyol, rosin-modified polyol, polybutadiene polyol, polyisoprene polyol, or a hydrogenated product thereof, polyethylene butylene polyol, etc.
The main component is a prepolymer obtained by adding or copolymerizing a polyisocyanate compound or an alkoxysilyl group-containing compound to at least one kind. Such R-HM is
At an application temperature of 80 to 140 ° C., 1000 to 5000
Preferably it has a viscosity of 0 cP. Viscosity 1000c
If it is less than P, the cohesive force at the time of solidification of the crystal is low, and 50,000 c
If it exceeds P, there is a drawback that good coating cannot be performed.
【０００７】また、造核剤を含む水溶液とは、前記のＲ
−ＨＭの結晶固化に促進作用を及ぼす造核剤を溶解また
は分散させた水溶液を指称する。この造核剤としては、
シリカ、タルク、炭酸カルシウム等の無機物、結晶性の
高分子、ワックス類等が使用できるが、特に結晶性の高
分子、ワックス類等が効果的である。具体的には、結晶
性ポリエステル、結晶性ポリエステル系ウレタン、エチ
レン酢酸ビニル共重合体等のエチレン系共重合体、プロ
ピレン系共重合体等の結晶性高分子、パラフィンワック
ス、マイクロクリスタリンワックス、低分子量ポリエチ
レンワックス、酸化ポリエチレンワックス等のワックス
類の１種、または２種以上を、０．０１重量％以上、好
ましくは１重量％以上乳化等により分散溶解させた水溶
液が使用できる。この水溶液には、塗布量管理の目的
で、顔料、染料等を、また湿気硬化反応促進の目的で、
アミン系、金属系の触媒等を溶解させてもよい。造核剤
を含む水溶液の塗布量は、Ｒ−ＨＭの塗布量にもよる
が、５〜１００ｇ／ｍ２、好ましくは１０〜５０ｇ／ｍ
２が適している。塗布量５ｇ／ｍ２未満では、Ｒ−ＨＭ
の結晶固化を早める効果が少なく、１００ｇ／ｍ２を超
えると接着性が阻害されるという欠点があるためであ
る。Further, the aqueous solution containing a nucleating agent refers to the above-mentioned R
-Refers to an aqueous solution in which a nucleating agent having a promoting effect on HM solidification is dissolved or dispersed. As this nucleating agent,
Inorganic substances such as silica, talc and calcium carbonate, crystalline polymers, waxes and the like can be used, and crystalline polymers, waxes and the like are particularly effective. Specifically, crystalline polyester, crystalline polyester-based urethane, ethylene-based copolymer such as ethylene-vinyl acetate copolymer, crystalline polymer such as propylene-based copolymer, paraffin wax, microcrystalline wax, low molecular weight An aqueous solution in which one or more waxes such as polyethylene wax and oxidized polyethylene wax are dispersed and dissolved by emulsification or the like by 0.01% by weight or more, preferably 1% by weight or more can be used. In this aqueous solution, pigments, dyes, etc., for the purpose of coating amount control, and for the purpose of accelerating the moisture curing reaction,
An amine-based or metal-based catalyst may be dissolved. The application amount of the aqueous solution containing the nucleating agent depends on the application amount of R-HM, but is 5 to 100 g / m 2 , preferably 10 to 50 g / m 2 .
2 is suitable. If the coating amount is less than 5 g / m 2 , R-HM
This is because there is little effect of accelerating the solidification of the crystal, and if it exceeds 100 g / m 2 , there is a disadvantage that the adhesiveness is impaired.
【０００８】[0008]
【作用】本発明の接着工法では、Ｒ−ＨＭは８０〜１４
０℃に加熱溶融され、被着体上に、ビード、スパイラル
等の線状塗布、またはスプレー、ダイノズル、ロールコ
ーター等により、面状に塗布される。造核剤を含む水溶
液は、Ｒ−ＨＭをスプレー塗布する場合、既知の噴霧
器、または、霧吹き、を用いてＲ−ＨＭと同時に霧状に
塗布するのが好ましいが、Ｒ−ＨＭ塗布後その上に塗布
してもよい。後塗布の場合は、刷毛やロール等により塗
布してもよい。次に被着体を重ね合わせ圧着により接着
が完了するが、造核剤を含む水溶液の塗布により、特に
圧着後、Ｒ−ＨＭの結晶固化が早くなるため、オープン
タイムは、ほとんど短縮されずに、圧着時間が短縮でき
る。被着体を重ね合わせた後の圧着により造核剤がＲ−
ＨＭ層内に入り、Ｒ−ＨＭの結晶成分に造核作用を及ぼ
し、結晶固化を早めたものと解析される。この作用に適
するＲ−ＨＭの固化時間は、１分以上が望ましい。According to the bonding method of the present invention, R-HM is 80 to 14
It is heated and melted at 0 ° C., and is linearly coated on an adherend, such as a bead, a spiral, or the like, or is spread on a surface by a spray, a die nozzle, a roll coater or the like. When spraying R-HM, the aqueous solution containing the nucleating agent is preferably applied in the form of a mist at the same time as the R-HM using a known sprayer or a sprayer. May be applied. In the case of post-coating, it may be coated with a brush or a roll. Next, the adherend is completed by laminating and bonding the adherends, but the application of an aqueous solution containing a nucleating agent accelerates the solidification of the R-HM crystal, particularly after compression, so that the open time is hardly reduced. The crimping time can be reduced. The nucleating agent becomes R-
It is analyzed that it enters the HM layer, exerts a nucleation effect on the crystal component of R-HM, and hastened the crystal solidification. The solidification time of R-HM suitable for this action is desirably 1 minute or more.
【０００９】[0009]
【発明の実施の形態】以下、本発明に関する実施の形態
を実施例をあげて、具体的に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be specifically described with reference to examples.
【００１０】[0010]
実施例１ アジピン酸と１．４ブタンジオール、プロピレングリコ
ールを主成分とするポリエステルポリオール（官能基数
２．０，分子量４０００）４０００ｇと、ジフェニルメ
タンジイソシアネート５００ｇを混合攪拌しながら１１
０℃で４時間反応させて得たプレポリマー全量に、ジブ
チルチンジラウレートを０．０１ｇ添加してＲ−ＨＭ
（活性ＮＣＯ基含有量１．６重量％、粘度１５０００ｃ
Ｐ／１２０℃、固化時間３分／２０℃、６分／３０℃）
を得た。このＲ−ＨＭを１２０℃に溶融し、３０℃の室
内で厚さ１ｍｍの軟質塩ビシートに約８０ｇ／ｍ２で面
状にスプレー塗布し、次にこの上に、造核剤を含む水溶
液として、乳化重合したエチレン酢ビ共重合体（酢ビ含
有量２０重量％）を５重量％含む水溶液を、霧吹きによ
り約２０ｇ／ｍ２塗布した。次に厚さ２ｍｍのウレタン
発泡体で裏打ちされた起毛布をＲ−ＨＭの塗布終了から
３０秒後に重ね合わせ、圧力１ｋｇｆ／ｃｍ２で所定時
間圧着し、圧着解除３０秒後のはく離接着強さを測定し
た。測定結果を表１に示す。Example 1 A mixture of 4000 g of a polyester polyol (functional group number: 2.0, molecular weight: 4000) containing adipic acid, 1.4 butanediol and propylene glycol as main components and 500 g of diphenylmethane diisocyanate was stirred 11
0.01 g of dibutyltin dilaurate was added to the whole amount of the prepolymer obtained by reacting at 0 ° C. for 4 hours, and R-HM was added.
(Active NCO group content 1.6% by weight, viscosity 15000c
P / 120 ° C, solidification time 3 minutes / 20 ° C, 6 minutes / 30 ° C)
I got This R-HM is melted at 120 ° C. and spray-coated on a 1 mm-thick soft PVC sheet at a temperature of about 80 g / m 2 in a room at 30 ° C. Then, as an aqueous solution containing a nucleating agent, An aqueous solution containing 5% by weight of an emulsion-polymerized ethylene vinyl acetate copolymer (vinyl acetate content: 20% by weight) was applied by spraying to about 20 g / m 2 . Next, a brushed cloth lined with a urethane foam having a thickness of 2 mm is overlaid 30 seconds after the end of R-HM application, pressed at a pressure of 1 kgf / cm 2 for a predetermined time, and peeled adhesive strength 30 seconds after the release of the pressure bonding. Was measured. Table 1 shows the measurement results.
【００１１】実施例２ Ｒ−ＨＭのスプレー塗布と造核剤を含む水溶液の霧吹き
による塗布を同時に行った以外は、実施例１のＲ−ＨＭ
と造核剤を含む水溶液を用い、実施例１と全く同様に接
着し、はく離接着強さの測定を行った。測定結果を表１
に示す。Example 2 R-HM of Example 1 except that spray application of R-HM and application by spraying of an aqueous solution containing a nucleating agent were simultaneously performed.
Using an aqueous solution containing a nucleating agent and a nucleating agent, adhesion was performed in exactly the same manner as in Example 1, and the peel adhesion strength was measured. Table 1 shows the measurement results.
Shown in
【００１２】実施例３ 造核剤を含む水溶液として、酸化型ポリエチレンワック
ス（数平均分子量２０００、軟化点１０４℃、酸価２
２）を５重量％含むアニオン系エマルジョンを用いた以
外は、実施例１のＲ−ＨＭを用い、実施例１と全く同様
に塗布、接着し、はく離接着強さの測定を行った。測定
結果を表１に示す。Example 3 As an aqueous solution containing a nucleating agent, oxidized polyethylene wax (number average molecular weight: 2,000, softening point: 104 ° C., acid value: 2)
Except for using an anionic emulsion containing 5% by weight of 2), the R-HM of Example 1 was used to apply and bond in exactly the same manner as in Example 1, and the peel adhesion strength was measured. Table 1 shows the measurement results.
【００１３】比較例１ 造核剤を含む水溶液の変わりに、蒸留水を用いた以外
は、実施例１のＲ−ＨＭを用い、実施例１と全く同様に
塗布、接着し、はく離接着強さの測定を行った。測定結
果を表１に示す。Comparative Example 1 R-HM of Example 1 was used in place of the aqueous solution containing a nucleating agent, and the coating and bonding were performed in exactly the same manner as in Example 1 except that distilled water was used. Was measured. Table 1 shows the measurement results.
【００１４】比較例２ 造核剤を含む水溶液を塗布しない以外は、実施例１のＲ
−ＨＭを用い、実施例１と全く同様に塗布、接着し、は
く離接着強さの測定を行った。測定結果を表１に示す。Comparative Example 2 The procedure of Example 1 was repeated except that an aqueous solution containing a nucleating agent was not applied.
Using -HM, application and adhesion were performed in exactly the same manner as in Example 1, and peel adhesion strength was measured. Table 1 shows the measurement results.
【００１５】[0015]
【表１】 [Table 1]
【００１６】表１から明らかなように室温３０℃にて、
本発明による接着工法（実施例１〜３）では、圧着時間
２０秒にて圧着解除後のはく離で、起毛布に裏打ちされ
たウレタンフォームの材料破壊が得られたが、比較例
１、２では、圧着６０秒を要しても材料破壊が得られな
かった。As is clear from Table 1, at room temperature of 30 ° C.
In the bonding method according to the present invention (Examples 1 to 3), the material was destroyed in the urethane foam lined with the raised cloth by the peeling after the pressure release at the pressure bonding time of 20 seconds, but in Comparative Examples 1 and 2, No material destruction was obtained even after 60 seconds of crimping.
【００１７】[0017]
【発明の効果】以上のように、本発明の接着工法による
と、気温の高い時期にも短時間の圧着で、Ｒ−ＨＭの固
化が完了し、初期接着性に優れ、高い信頼性を有する接
着が得られる。したがって、本発明の接着工法は、貼合
せ初期の接着強さが要求される、自動車のドアおよび天
井等の曲面をなす基材への表面布接着や、建材等の部品
接着に有効に利用できる。As described above, according to the bonding method of the present invention, the solidification of the R-HM is completed by a short press-bonding even at a high temperature, and the initial adhesion is excellent and the reliability is high. Adhesion is obtained. Therefore, the bonding method of the present invention can be effectively used for bonding a surface cloth to a base material having a curved surface such as a door and a ceiling of an automobile or bonding a component such as a building material, which requires an initial bonding strength. .
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−25454（ＪＰ，Ａ) 特開 平３−6281（ＪＰ，Ａ) 特開 平８−259903（ＪＰ，Ａ) 特開 平10−245536（ＪＰ，Ａ) 特開 平８−259923（ＪＰ，Ａ) 特開 平６−287532（ＪＰ，Ａ) 特表 平10−500708（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C09J 4/00 - 201/10 C08K 3/00 - 13/08 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-25454 (JP, A) JP-A-3-6281 (JP, A) JP-A-8-259903 (JP, A) JP-A-10- 245536 (JP, A) JP-A-8-259923 (JP, A) JP-A-6-287532 (JP, A) Table 10-500708 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C09J 4/00-201/10 C08K 3/00-13/08
Claims (4)
る湿気硬化形反応性ホットメルト接着剤を塗布し、次
に、その接着剤面に造核剤を含む水溶液を塗布して接着
することを特徴とする接着工法。1. A moisture-curable reactive hot-melt adhesive having crystallinity is applied to at least one of the adherends, and then an aqueous solution containing a nucleating agent is applied and adhered to the adhesive surface. A bonding method characterized by the fact that:
る湿気硬化形反応性ホットメルト接着剤と、造核剤を含
む水溶液を同時に塗布して接着することを特徴とする接
着工法。2. A bonding method comprising simultaneously applying and bonding to at least one of the adherends a moisture-curable reactive hot melt adhesive having crystallinity and an aqueous solution containing a nucleating agent.
ルト接着剤が、塗布温度８０〜１４０℃で、固化時間１
分以上である特許請求の範囲第１項および第２項記載の
接着工法。3. A moisture-curable reactive hot-melt adhesive having crystallinity is cured at an application temperature of 80 to 140 ° C. and a solidification time of 1 hour.
3. The bonding method according to claim 1, wherein the bonding method is at least one minute.
たはワックス類の１種または２種以上を含む水溶液であ
る特許請求の範囲第１項および第２項記載の接着工法。4. The bonding method according to claim 1, wherein the aqueous solution containing a nucleating agent is an aqueous solution containing one or more crystalline polymers or waxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09426997A JP3328874B2 (en) | 1997-03-10 | 1997-03-10 | Bonding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09426997A JP3328874B2 (en) | 1997-03-10 | 1997-03-10 | Bonding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10251603A JPH10251603A (en) | 1998-09-22 |
| JP3328874B2 true JP3328874B2 (en) | 2002-09-30 |
Family
ID=14105566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09426997A Expired - Fee Related JP3328874B2 (en) | 1997-03-10 | 1997-03-10 | Bonding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3328874B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070249771A1 (en) * | 2006-04-21 | 2007-10-25 | Paul Charles W | Hot melt adhesive for packaging applications |
| JP5976361B2 (en) * | 2012-03-29 | 2016-08-23 | 横浜ゴム株式会社 | Bonding method |
-
1997
- 1997-03-10 JP JP09426997A patent/JP3328874B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10251603A (en) | 1998-09-22 |
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