JP2003113361A - Quick-setting water-resistant adhesive composition of two-pack separate application type and bonding method using the adhesive composition - Google Patents
Quick-setting water-resistant adhesive composition of two-pack separate application type and bonding method using the adhesive compositionInfo
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- JP2003113361A JP2003113361A JP2001307335A JP2001307335A JP2003113361A JP 2003113361 A JP2003113361 A JP 2003113361A JP 2001307335 A JP2001307335 A JP 2001307335A JP 2001307335 A JP2001307335 A JP 2001307335A JP 2003113361 A JP2003113361 A JP 2003113361A
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- liquid
- adhesive composition
- acid
- resistant adhesive
- setting water
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、２液分別塗布型の
速硬化耐水型接着剤組成物、及びそれを用いた接着方法
に関する。詳しくは、本発明は煮沸繰り返し試験に合格
する高度な耐水性と接着強度を有し、さらに速硬化性能
及び後述する長い閉鎖堆積時間を有する２液分別塗布型
の速硬化耐水型水性高分子接着剤、及びそれを用いた接
着方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-liquid fractional coating type quick-curing water-resistant adhesive composition and an adhesion method using the same. More specifically, the present invention has a high water resistance and adhesive strength that pass the boiling repetition test, and further has a fast curing performance and a long closed deposition time which will be described later. And a bonding method using the same.
【０００２】[0002]
【従来の技術】構造材料の一つの代表例である集成材
は、それを構成する材料の入手のし易さ、製造方法の簡
便性、高い強度を有する等の理由で、多くの分野で用い
られている。この集成材の代表的な製造法の一工程とし
て、集成材を構成する個々の材料表面に接着剤を塗布後
他の材料を重ね、圧締する工程があり、この工程におい
て用いられる接着剤は高い接着強度を有することが求め
られている。従来、この集成材用の接着剤としては、水
性高分子−イソシアネート系接着剤が知られているが、
初期接着強度が低く圧締時間が２０分以上必要であり、
不充分なものであった。そこで、この点を改善する接着
剤として、特開昭６１−７８８８３号公報に、アセトア
セチル基含有高分子化合物を含む第１液と、ヒドラジン
化合物及びイソシアネート化合物を含む第２液からなる
２液分別塗布型速硬化水性接着剤が提案されている。2. Description of the Related Art Laminated wood, which is a typical example of structural materials, is used in many fields because it is easy to obtain the materials constituting it, has a simple manufacturing method, and has high strength. Has been. As one of the steps of a typical manufacturing method of this laminated wood, there is a step of applying an adhesive to the surface of each material constituting the laminated wood, stacking another material, and then pressing, and the adhesive used in this step is It is required to have high adhesive strength. Conventionally, as the adhesive for this laminated material, an aqueous polymer-isocyanate adhesive is known,
The initial adhesive strength is low and the pressing time is 20 minutes or more,
It was insufficient. Therefore, as an adhesive for improving this point, Japanese Unexamined Patent Publication (Kokai) No. 61-78883 discloses a two-liquid separation consisting of a first liquid containing an acetoacetyl group-containing polymer compound and a second liquid containing a hydrazine compound and an isocyanate compound. A coating type quick curing water-based adhesive has been proposed.
【０００３】しかしながら、この接着剤は確かに初期接
着強度が改善されてはいるものの、第１液と第２液が接
触すると急速にゲル化が起きてしまい、第１液と第２液
とが材料表面に分別塗布（例えば、重ね塗り（堆積塗
布））され第１液と第２液が接触された後、十分なプレ
ス圧にてプレス圧締（以下、プレス圧締、又は圧締とい
うことがある。）されるまでの時間（第１液と第２液が
接触された後、プレス圧締が開始されるまでの時間を
「閉鎖堆積時間」と定義する。）が、約１分間以内と短
い。このことは、第１液と第２液を接触させた後は可及
的速やかに接着材料を十分なプレス圧にて圧締しなけれ
ばならないという不都合さを招来する。However, although this adhesive has certainly improved the initial adhesive strength, when the first liquid and the second liquid come into contact with each other, gelation occurs rapidly, and the first liquid and the second liquid are separated from each other. After the first liquid and the second liquid are contacted by separate coating (for example, overcoating (deposition coating)) on the material surface, press compression with sufficient press pressure (hereinafter referred to as press compression or compression The time until the press clamping is started after the first liquid and the second liquid are contacted is defined as “closed deposition time” within about 1 minute. And short. This leads to the inconvenience that the adhesive material must be pressed with a sufficient pressing pressure as soon as possible after the first liquid and the second liquid are brought into contact with each other.
【０００４】具体的には、複数枚の材料（以下、ひき板
ということがある。）から集成材を製造する場合、ひき
板表面への接着剤の塗布作業は通常汎用されている重ね
塗り（堆積塗布）を採用すると数十秒かかるから、該接
着剤の閉鎖堆積時間が１分以内の場合では、ひき板表面
に接着剤を塗布し他のひき板を接触させた後は、なるべ
く早くひき板同志をプレス圧締せざるを得ないので、結
果として、面倒でも前記操作（接着剤塗布／他のひき板
の接触／プレス圧締）を複数回繰り返し行う他はない。
ところで、集成材は通常５枚以上の多数のひき板から構
成される場合が多いので、従って、集成材の製造に時間
が掛かり過ぎ、製造効率の点で大きな問題となってい
た。[0004] Specifically, when a laminated material is manufactured from a plurality of materials (hereinafter sometimes referred to as a sawing board), the work of applying an adhesive to the surface of the sawing board is generally used in repeated coating ( It takes several tens of seconds if the (adhesive coating) is adopted, so if the closing deposition time of the adhesive is within 1 minute, after applying the adhesive to the surface of the sawing board and contacting the other sawing board, pull it as soon as possible. Since the plates must be pressed together, as a result, the above-mentioned operation (application of adhesive / contact of other drawing plates / pressing) must be repeated a plurality of times even if it is troublesome.
By the way, since the laminated wood is usually composed of a large number of five or more saw plates, it takes too much time to manufacture the laminated wood, which is a big problem in terms of manufacturing efficiency.
【０００５】[0005]
【発明が解決しようとする課題】そこで、前記閉鎖堆積
時間を長くすることができれば、ひき板表面に接着剤を
塗布し、他のひき板を接触させた後、直ちにプレス圧締
操作を施すことなく、新たな別のひき板に接着剤を塗布
し前のひき板に接触させ、これを複数回繰り返し、その
後纏めて前記圧締作業を行うことができるのである。つ
まり、複数のひき板を一度のプレス圧締操作を施すこと
により集成材を製造することができるため、圧締操作回
数を減らして集成材をより効率的に製造することが可能
となるのである。以上のことから、本発明は適度に長い
閉鎖堆積時間（例えば、３分間以上）を有し、しかも初
期接着強度が大きい２液分別塗布型の速硬化耐水型接着
剤組成物を提供することを課題（目的) とするものであ
る。Therefore, if it is possible to lengthen the closed deposition time, it is necessary to apply an adhesive to the surface of the sawing plate, bring it into contact with another pulling plate, and then immediately perform a press clamping operation. Instead, it is possible to apply an adhesive agent to another new pulling board, bring it into contact with the previous pulling board, repeat this a plurality of times, and then collectively carry out the pressing work. In other words, since the laminated wood can be manufactured by performing the press-pressing operation on the plurality of pulling plates once, it is possible to reduce the number of times of the pressing operation and manufacture the laminated wood more efficiently. . From the above, it is an object of the present invention to provide a two-liquid fractional-coating type quick-setting water-resistant adhesive composition having a reasonably long closed deposition time (for example, 3 minutes or more) and a large initial adhesive strength. This is an issue (purpose).
【０００６】[0006]
【課題を解決するための手段】本発明者らは上記課題を
解決すべく、先ず接着剤の固形分の調整、水溶性高分子
による保湿等の従来から知られている方法を検討したが
満足する結果は得られなかった。その後研究を続ける
内、イソシアネート化合物とヒドラジン化合物との反応
が閉鎖堆積時間に影響することを知見し、更にこれに基
づいて検討を重ねた結果、遂に本発明に到達した。即
ち、本発明は、(A)アセトアセチル基含有高分子化合物
と酸性物質とを含むエマルジョンとイソシアネート化合
物とからなる第１液（但し、第１液のｐＨは１．０〜
４．０である。）と、 (B)ヒドラジン化合物を０．１〜
５０重量％含む水溶液又はエマルジョンである第２液と
からなることを特徴とする２液分別塗布型の速硬化耐水
型接着剤組成物、及び上記第１液と第２液とを接着部材
に分別塗布し、接着部材同志を接触させた後、十分なプ
レス圧で圧締する１の部材と他の部材との接着方法であ
る。In order to solve the above-mentioned problems, the inventors of the present invention first examined the conventionally known methods such as adjusting the solid content of the adhesive and moisturizing with a water-soluble polymer. No results were obtained. While continuing the research thereafter, it was found that the reaction between the isocyanate compound and the hydrazine compound affects the closed deposition time, and as a result of further studies based on this, the present invention finally arrived. That is, the present invention relates to a first liquid comprising an emulsion containing (A) an acetoacetyl group-containing polymer compound and an acidic substance, and an isocyanate compound (provided that the pH of the first liquid is 1.0 to
It is 4.0. ), And (B) a hydrazine compound of 0.1 to
A two-liquid fractional-coating type quick-setting water-resistant adhesive composition comprising an aqueous solution or an emulsion containing 50% by weight of the second liquid, and the first liquid and the second liquid are separated into an adhesive member. This is a method for adhering one member and another member in which the adhesive members are applied and brought into contact with each other, and then pressed with a sufficient press pressure.
【０００７】[0007]
【発明の実施の形態】以下、本発明の構成を順次詳細に
説明する。アセトアセチル基含有高分子化合物
本発明では、高分子化合物に存在するアセトアセチル基
が重要な役割を果たし、該アセトアセチル基がヒドラジ
ン化合物と架橋反応し、接着力を高める。アセトアセチ
ル基含有高分子化合物としては、ポリビニルアルコー
ル、ヒドロキシアルキルセルロース、澱粉等の水溶性高
分子化合物のアセトアセチル化物が用いられる。中でも
アセトアセチル化ポリビニルアルコールが好ましい。ア
セトアセチル化ポリビニルアルコールは、例えば、ポリ
ビニルアルコールとジケテンを反応させて得られる。ま
た、市販品を利用することもできる。アセトアセチル化
ポリビニルアルコールのアセトアセチル化変性度は、３
〜２０モル％のものが好ましく、特に４〜１０モル％の
ものが好ましい。アセトアセチル化変性度が３モル％未
満の場合はヒドラジン化合物との反応速度が遅くなり十
分な初期接着強度が得られず、一方アセトアセチル化変
性度が２０モル％を越えるものは溶解性の点で問題があ
り接着剤組成物の調製が難しい。BEST MODE FOR CARRYING OUT THE INVENTION The constitution of the present invention will be described in detail below. Acetoacetyl Group-Containing Polymer Compound In the present invention, the acetoacetyl group present in the polymer compound plays an important role, and the acetoacetyl group cross-links with the hydrazine compound to enhance the adhesive strength. As the acetoacetyl group-containing polymer compound, acetoacetylated products of water-soluble polymer compounds such as polyvinyl alcohol, hydroxyalkyl cellulose and starch are used. Of these, acetoacetylated polyvinyl alcohol is preferable. Acetoacetylated polyvinyl alcohol is obtained, for example, by reacting polyvinyl alcohol and diketene. Moreover, a commercial item can also be utilized. The degree of acetoacetylation modification of acetoacetylated polyvinyl alcohol is 3
.About.20 mol%, particularly 4 to 10 mol%. When the degree of acetoacetylation modification is less than 3 mol%, the reaction rate with the hydrazine compound is slow and sufficient initial adhesive strength cannot be obtained. On the other hand, when the degree of acetoacetylation modification exceeds 20 mol%, the solubility is However, it is difficult to prepare an adhesive composition.
【０００８】アセトアセチル化ポリビニルアルコールの
重合度は、調製された接着剤の作業性、接着強度等の点
からみて、約２００〜約３０００、好ましくは約５００
〜約２５００、更に好ましくは約１０００〜約２０００
である。また、アセトアセチル化ポリビニルアルコール
のケン化度は、接着剤の作業性等からみて８０〜１００
モル％、好ましくは８５〜９８モル％である。なお、ケ
ン化度が異なる複数のアセトアセチル化ポリビニルアル
コール又は重合度が異なる複数のアセトアセチル化ポリ
ビニルアルコールを混合して使用することもできる。こ
れらアセトアセチル化ポリビニルアルコールの添加量
は、第１液１００重量部に対して、１〜２５重量部、好
ましくは３〜１０重量部である。The degree of polymerization of acetoacetylated polyvinyl alcohol is about 200 to about 3000, preferably about 500, from the viewpoint of workability and adhesive strength of the prepared adhesive.
To about 2500, more preferably about 1000 to about 2000
Is. Further, the saponification degree of acetoacetylated polyvinyl alcohol is 80 to 100 in view of workability of the adhesive.
It is mol%, preferably 85 to 98 mol%. A plurality of acetoacetylated polyvinyl alcohols having different degrees of saponification or a plurality of acetoacetylated polyvinyl alcohols having different degrees of polymerization can be mixed and used. The amount of these acetoacetylated polyvinyl alcohols added is 1 to 25 parts by weight, preferably 3 to 10 parts by weight, based on 100 parts by weight of the first liquid.
【０００９】酸性物質
酸性物質としては、特に限定されるものではないが、具
体的には塩酸、硫酸、燐酸等の無機酸、蓚酸、酢酸、酪
酸、コハク酸、リンゴ酸、クエン酸、酒石酸等の有機
酸、塩化アルミニウム等の金属塩等が挙げられる。な
お、これら化合物を単独で用いてもよいが、複数選択し
て用いてもよい。また、この中でクエン酸、酒石酸等の
オキシ酸が特に好ましい。第１液での酸性物質の配合量
は、第１液のｐＨが１．０〜４．０、好ましくは１．０
〜３．０となる量である。この範囲で酸性物質を添加す
ると、３分以上の閉鎖堆積時間を確保することでき、極
めて有効である。第１液のｐＨが１．０未満だと産業廃
棄物としての取り扱いや、皮膚に直接接触した時のかぶ
れ等の危険があり、好ましくない。又第１液のｐＨが
４．０を越えると閉鎖堆積時間延長の効果は少なく、好
ましくない。 Acidic substance The acidic substance is not particularly limited, but specifically, inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid, oxalic acid, acetic acid, butyric acid, succinic acid, malic acid, citric acid, tartaric acid and the like. Examples thereof include organic acids, metal salts of aluminum chloride and the like. In addition, although these compounds may be used individually, they may be selected and used. Of these, oxy acids such as citric acid and tartaric acid are particularly preferable. The pH of the first liquid is 1.0 to 4.0, preferably 1.0.
The amount is about 3.0. When the acidic substance is added within this range, a closed deposition time of 3 minutes or more can be secured, which is extremely effective. When the pH of the first liquid is less than 1.0, there is a risk of handling it as industrial waste and causing a rash when directly contacting the skin, which is not preferable. If the pH of the first liquid exceeds 4.0, the effect of extending the closed deposition time is small, which is not preferable.
【００１０】イソシアネート化合物
イソシアネート化合物としては、ヘキサメチレンジイソ
シアネート、ジフェニルメタンジイソシアネート、トリ
レンジイソシアネート、キシリレンジイソシアネート等
のイソシアネート化合物等が挙げられる。なお、これら
化合物を単独で用いてもよいが、複数選択して使用して
もよい。これらイソシアネート化合物の添加量は第１液
１００重量部に対して２〜４０重量部とすることがで
き、好ましくは、１０〜３０重量部である。２重量部未
満では耐水性が得られ難く、４０重量部以上では接着剤
組成物の保存安定性に問題がある。 Isocyanate Compound Examples of the isocyanate compound include hexamethylene diisocyanate, diphenylmethane diisocyanate, tolylene diisocyanate and xylylene diisocyanate. In addition, although these compounds may be used individually, they may be selected and used. The amount of these isocyanate compounds added can be 2 to 40 parts by weight, and preferably 10 to 30 parts by weight, relative to 100 parts by weight of the first liquid. If it is less than 2 parts by weight, it is difficult to obtain water resistance, and if it is 40 parts by weight or more, there is a problem in storage stability of the adhesive composition.
【００１１】本発明の第１液はエマルジョンタイプとす
ることが好ましい。代表的な方法としては、アセトアセ
チル基含有高分子化合物を調製後、公知の方法を利用し
てエマルジョンとし、イソシアネート化合物を添加し
て、本発明の第１液を調製することができる。エマルジ
ョンとする具体的な方法としては、アセトアセチル基含
有高分子化合物を調製後、公知の乳化剤の存在下攪拌し
てエマルジョンを得る方法、前記アセトアセチル基含有
高分化合物を調製後、公知の樹脂エマルジョンと混合攪
拌してエマルジョンを得る方法などが挙げられる。The first liquid of the present invention is preferably an emulsion type. As a typical method, after preparing the acetoacetyl group-containing polymer compound, a known method is used to form an emulsion, and the isocyanate compound is added to prepare the first liquid of the present invention. As a specific method of forming an emulsion, a method of preparing an acetoacetyl group-containing polymer compound and then stirring it in the presence of a known emulsifier to obtain an emulsion, a method of preparing the acetoacetyl group-containing high-molecular compound, and a known resin Examples thereof include a method of obtaining an emulsion by mixing and stirring with an emulsion.
【００１２】前記樹脂エマルジョンの例として、酢酸ビ
ニル又は（メタ）アクリル酸エステル等のビニル系単量
体を主体とする乳化重合物や、エチレン−酢酸ビニル又
は（メタ）アクリル酸エステル類等の共重合乳化物等の
合成樹脂エマルジョン及び天然ゴム、イソプレンゴム、
スチレン−ブタジエンゴム、プチルゴム、クロロプレン
ゴム、ニトリルゴム等の合成ゴム乳化重合物であるゴム
ラテックスやこれらにカルボキシル基等の官能基を導入
した変性ゴムラテックス等があり、これら合成樹脂エマ
ルジョンやゴムラテックスを単独ないしは２種類以上を
混合して用いることもできる。中でも耐水性や耐光性に
優れるアクリル樹脂エマルジョンが好ましい。第１液に
は本発明の目的を損なわない範囲で他の配合剤を添加す
ることができる。他の配合剤の例としては、充填剤、可
塑剤、着色剤、防腐剤、防錆剤、粘度調整剤等を挙げる
ことができる。充填剤の例として、例えば、カオリン、
タルク、クレー等を挙げることができる。Examples of the resin emulsion include emulsion polymers mainly composed of vinyl monomers such as vinyl acetate or (meth) acrylic acid ester, and copolymers of ethylene-vinyl acetate or (meth) acrylic acid ester. Synthetic resin emulsion such as polymerized emulsion and natural rubber, isoprene rubber,
Styrene-butadiene rubber, butyl rubber, chloroprene rubber, rubber latex which is a synthetic rubber emulsion polymer such as nitrile rubber, and modified rubber latex in which functional groups such as carboxyl groups are introduced into these are available. They may be used alone or in combination of two or more. Above all, an acrylic resin emulsion having excellent water resistance and light resistance is preferable. Other compounding agents may be added to the first liquid within a range that does not impair the object of the present invention. Examples of other compounding agents include fillers, plasticizers, colorants, preservatives, rust preventives, viscosity modifiers and the like. Examples of fillers include kaolin,
Examples thereof include talc and clay.
【００１３】ヒドラジン化合物
本発明の第２液に用いられるヒドラジン化合物として
は、例えば、ヒドラジン、ヒドラジンヒドラート、ヒド
ラジンの塩酸、硫酸、硝酸、亜硝酸、リン酸、チオシア
ン酸、炭酸等の無機塩類、及びギ酸、シュウ酸、アジピ
ン酸、コハク酸、イソフタル酸、テレフタル酸等の有機
酸類、ヒドラジンのメチル、エチル、プロピル、ブチ
ル、アリル等の置換体等が挙げられる。これらの中で
は、特に有機二酸ジヒドラジドが好ましい。具体的なヒ
ドラジン化合物としては、例えば、アジピン酸ジヒドラ
ジド、シュウ酸ジヒドラジド、マロン酸ジヒドラジド、
コハク酸ジヒドラジド、セバチン酸ジヒドラジド、ドデ
カン二酸ジヒドラジド、イソフタル酸ジヒドラジド、テ
レフタル酸ジヒドラジド、グリコリック酸ジヒドラジ
ド、ポリアクリル酸ジヒドラジド等が挙げられる。本発
明の第２液は、水溶液又はエマルジョンとするのが好ま
しく、第２液におけるヒドラジン化合物の濃度は、０．
１〜５０重量％、好ましくは１〜３０重量％、より好ま
しくは４〜２０重量％である。 Hydrazine Compound Examples of the hydrazine compound used in the second liquid of the present invention include hydrazine, hydrazine hydrate, inorganic salts of hydrazine such as hydrochloric acid, sulfuric acid, nitric acid, nitrous acid, phosphoric acid, thiocyanic acid and carbonic acid. And organic acids such as formic acid, oxalic acid, adipic acid, succinic acid, isophthalic acid, and terephthalic acid, and substitution products of hydrazine such as methyl, ethyl, propyl, butyl, and allyl. Among these, organic diacid dihydrazide is particularly preferable. Specific hydrazine compounds include, for example, adipic acid dihydrazide, oxalic acid dihydrazide, malonic acid dihydrazide,
Examples thereof include succinic acid dihydrazide, sebacic acid dihydrazide, dodecanedioic acid dihydrazide, isophthalic acid dihydrazide, terephthalic acid dihydrazide, glycolic acid dihydrazide, polyacrylic acid dihydrazide and the like. The second liquid of the present invention is preferably an aqueous solution or an emulsion, and the concentration of the hydrazine compound in the second liquid is 0.
It is 1 to 50% by weight, preferably 1 to 30% by weight, more preferably 4 to 20% by weight.
【００１４】次に、本発明の接着剤組成物を用いた１の
部材と他の部材との接着方法について説明する。本発明
の接着方法の第１の特徴としては、閉鎖堆積時間が、例
えば３分間以上（例えば、３分間〜７分間）と、比較的
長いことが挙げられるので、接着させる部材同士を貼り
合わせた後に直ちに圧締することなく、新たな他の部材
に接着剤を塗布し貼り合わせ、これを複数回繰り返し、
その後纏めて前記圧締作業を行うことができるのであ
る。さらに、本発明の接着方法の第２の特徴としては、
全ての部材同士を貼り合わせた後、短時間（例えば、１
分間）圧締するだけで、十分な接着強度を得ることがで
きることである。前記部材としては、例えば、木材、合
板、バーチクルボード、スレート板、発泡体や紙、突板
等が挙げられる。Next, a method for adhering one member to another member using the adhesive composition of the present invention will be described. The first feature of the bonding method of the present invention is that the closed deposition time is relatively long, for example, 3 minutes or more (for example, 3 minutes to 7 minutes). Therefore, the members to be bonded are bonded to each other. Immediately without applying pressure immediately afterwards, apply adhesive to other new members and bond them together, and repeat this multiple times.
After that, the clamping work can be performed collectively. Furthermore, as the second feature of the bonding method of the present invention,
Short time (for example, 1
Sufficient adhesive strength can be obtained simply by pressing (for a minute). Examples of the member include wood, plywood, verticle board, slate board, foam, paper, and veneer.
【００１５】本発明の接着剤組成物を部材表面に塗布す
る方法としては、例えば、刷毛、ドクターブレード、ロ
ールコーターや自動糊付け機を用いる方法、スプレーガ
ンで塗布する方法が挙げられる。本発明の接着方法で
は、１の部材の表面に第１液又は第２液のいずれか一方
の液を塗布し、さらに他方の液を重ね塗り（堆積塗布）
するか、該他方の液を他の部材に塗布した後、他の部材
を貼り合わせる。前記重ね塗り（堆積塗布）方法は、第
１液と第２液の両方を１の部材にのみ塗布すればよいの
で、他方の部材が接着剤を塗布しにくい形状であっても
接着を行うことができるのでより好ましい。また、前記
重ね塗り（堆積塗布）方法では、先に第１液を塗布し、
その上に第２液を塗布してもよく、又はその逆に、まず
第２液を塗布し、その上に第１液を塗布してもよい。Examples of the method for applying the adhesive composition of the present invention to the surface of a member include a method using a brush, a doctor blade, a roll coater or an automatic gluing machine, and a method using a spray gun. In the bonding method of the present invention, one of the first liquid and the second liquid is applied to the surface of one member, and the other liquid is overcoated (deposition application).
Or, the other liquid is applied to another member and then the other member is attached. In the above-mentioned overcoating (deposition coating) method, it is sufficient to apply both the first liquid and the second liquid to only one member, so that bonding can be performed even if the other member has a shape in which it is difficult to apply the adhesive. Is more preferable because it can Further, in the above-mentioned overcoating (deposition coating) method, the first liquid is first applied,
The second liquid may be applied thereon, or vice versa, the second liquid may be applied first, and then the first liquid may be applied thereon.
【００１６】次に、本発明の接着方法を具体例に基づき
詳しく説明する。閉鎖堆積塗布時間が４分間程度の接着
剤を使用し、且つ重ね塗り（堆積塗布）方法を用いてひ
き板５枚の集成材を製造する場合を例にとり、図１を用
いて説明する。先ず、例えば、第２液を片面のみに塗布
し乾燥させたひき板５枚を予め用意しておく。次に、第
１のひき板の第２液塗布面に第１液を堆積塗布し、この
面に第２のひき板の非塗布面を貼り合わせる。その後直
ちに圧締することなく、第２のひき板の第２液塗布面に
第１液を堆積塗布し、この面に第３のひき板の非塗布面
を貼り合わせる。Next, the bonding method of the present invention will be described in detail based on specific examples. An example in which an adhesive having a closed deposition application time of about 4 minutes is used and a laminated sheet of five sawn boards is manufactured by the overcoating (deposition coating) method will be described with reference to FIG. First, for example, 5 sheets of the sawing plate coated with the second liquid only on one side and dried are prepared in advance. Next, the first liquid is deposited and applied on the second liquid application surface of the first drawing plate, and the non-application surface of the second drawing plate is bonded to this surface. Immediately thereafter, without pressing, the first liquid is deposited and applied on the second liquid application surface of the second drawing plate, and the non-application surface of the third drawing plate is bonded to this surface.
【００１７】以下、同様の工程を繰り返してひき板５枚
を貼り合わせる（この時点で第１液の最初の塗布作業開
始後４分が経過している）。この貼り合わ工程終了後、
速やかにひき板５枚を所定のプレス圧にて圧締操作（約
１分間）を行い、集成材を得る。この集成材を製造する
には、第１液を塗布し貼り合わせる操作は４回必要であ
るが、圧締操作は１回だけである。これに対し、閉鎖体
積時間が１分間程度の接着剤を使用する場合は、図２に
示されるように、第１のひき板の第２液塗布面に第１液
を堆積塗布し、この塗布面に第２のひき板の非塗布面を
貼り合わせる（この時点で第１液の塗布作業開始後１分
が経過している）と、その後直ちに圧締（約１分間）す
ることが必要になる。その後は、第２ひき板の第２液塗
布面に第１液を堆積塗布し、この塗布面に第３のひき板
の非塗布面を貼り合わせ、その後直ちに圧締する。Thereafter, the same steps are repeated to bond the five drawing plates (at this point, 4 minutes have passed since the start of the first application of the first liquid). After this laminating process,
Immediately, a press operation (about 1 minute) is performed on the five drawing plates with a predetermined pressing pressure to obtain a laminated material. In order to manufacture this laminated material, the operation of applying and pasting the first liquid is necessary four times, but the pressing operation is only once. On the other hand, when an adhesive having a closed volume time of about 1 minute is used, as shown in FIG. 2, the first liquid is deposited and applied on the second liquid application surface of the first pulling plate, and this application is performed. It is necessary to bond the non-coated surface of the second pulling plate to the surface (at this point, 1 minute has elapsed since the start of the coating operation of the first liquid), and then immediately press (about 1 minute). Become. After that, the first liquid is deposited and applied on the second liquid application surface of the second drawing plate, the non-application surface of the third drawing plate is bonded to this application surface, and immediately thereafter, compression is performed.
【００１８】以上の操作を繰り返してひき板５枚の集成
材を得る。この集成材を製造するには、第１液を塗布し
貼り合わせる操作は４回必要であり、圧締操作も４回必
要となる。以上説明したように、この集成材を製造する
に当たり、本発明では圧締操作は１回だけしか必要がな
いので、閉鎖体積時間が１分間程度の接着剤を用いる場
合（圧締操作４回）に比べて、ひき板の貼り合わせ時間
は変わらないが、圧締操作３回分（３分）の時間が節約
できたことになり、より効率的な集成材の製造が可能と
なる。The above operation is repeated to obtain a laminated lumber having five saw plates. In order to manufacture this laminated material, the operation of applying and bonding the first liquid is necessary four times, and the pressing operation is also necessary four times. As described above, when the laminated material is manufactured, the pressing operation is required only once in the present invention. Therefore, when the adhesive having the closed volume time of about 1 minute is used (4 times the pressing operation). Compared with the above, the time for sticking the sawing plate is the same, but the time for three pressing operations (3 minutes) can be saved, and more efficient production of laminated lumber becomes possible.
【００１９】[0019]
【実施例】以下、実施例によって本発明を説明するが、
本発明はこれら実施例に何ら限定されるものではない。
なお、以下の実施例、比較例では初期接着強さ（Ｎ）、
及びｐＨを以下の方法により測定・評価した。EXAMPLES The present invention will be described below with reference to examples.
The present invention is not limited to these examples.
In the following examples and comparative examples, the initial adhesive strength (N),
And pH were measured and evaluated by the following methods.
【００２０】（初期接着強さ−割裂試験）
試験材料：〈芯材〉長さ４ｃｍ×巾４ｃｍ×厚さ１ｃｍ
の米松材
〈面材〉長さ５ｃｍ×巾４ｃｍ×厚さ５ｍｍの合板
接着操作：芯材に第２液を塗布し( 塗布量３０ｇ/
ｍ2 ) 、乾燥（２３℃、６０分間）させる。さらに芯材
に第１液を重ねて塗布し（塗布量３５０ｇ/ ｍ2 )、第
１液の塗布後に図３に示されるように面材をのせ、第１
液の塗布開始時から４分後に前記芯材と面材との積層体
を圧締（温度２３℃、プレス圧１ＭＰａ、時間１分間）
し、解圧後、直ちに上下両面材を外方に引き剥がし、剥
れたときの強度（初期接着強さ（Ｎ））を測定した。
（ｐＨの測定方法）株式会社堀場製作所 ガラス電極式
水素イオン濃度計 型式Ｆ−１３（ｐＨ測定範囲ｐＨ０
〜１４）を使用して測定した。なお、以下の数値は特に
断らない限り重量部である。(Initial bond strength-Split test) Test material: <core material> length 4 cm x width 4 cm x thickness 1 cm
Yonematsu material <face material> Plywood bonding operation of length 5 cm x width 4 cm x thickness 5 mm: Apply the second liquid to the core material (application amount 30 g /
m 2 ) and dry (23 ° C., 60 minutes). Further, the first liquid is overlaid on the core material (coating amount 350 g / m 2 ), and after the first liquid is applied, a face material is placed as shown in FIG.
Four minutes after the start of application of the liquid, the laminated body of the core material and the face material is clamped (temperature 23 ° C., press pressure 1 MPa, time 1 minute).
Then, immediately after the pressure was released, the upper and lower double-sided materials were peeled outward, and the strength at the time of peeling (initial adhesive strength (N)) was measured. (PH measuring method) Horiba, Ltd. Glass electrode type hydrogen ion concentration meter Model F-13 (pH measuring range pH 0
.About.14). The following numerical values are parts by weight unless otherwise specified.
【００２１】[0021]
【実施例１−１】（第１液の調製）攪拌羽根を備えたガ
ラス容器に水８０部と微量の消泡剤を入れ、アセトアセ
チル化ポリビニルアルコール（ゴーセファイマーＺ２０
０／日本合成化学工業株式会社製）２０ｇを攪拌した状
態で少しずつ入れ、９０℃、６０分間加熱し溶解して、
20% アセトアセチル化ポリビニルアルコール水溶液（以
後、 20%Z200水溶液と略称する。) を得た。攪拌羽根を
備えたガラス容器に水８５部と微量の消泡剤を入れ、完
全ケン化ポリビニルアルコール（ＣＳＴ／株式会社クラ
レ製）１５ｇを攪拌した状態で少しずつ入れ、９０℃、
６０分間加熱し溶解して、15% 完全ケン化ポリビニルア
ルコール水溶液（以後、15%CST水溶液と略称する。) を
得た。[Example 1-1] (Preparation of first liquid) 80 parts of water and a small amount of an antifoaming agent were put in a glass container equipped with a stirring blade, and acetoacetylated polyvinyl alcohol (Gocefimer Z20 was used.
(0 / manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) 20 g was gradually added with stirring, and heated at 90 ° C. for 60 minutes to dissolve,
A 20% acetoacetylated polyvinyl alcohol aqueous solution (hereinafter abbreviated as 20% Z200 aqueous solution) was obtained. In a glass container equipped with a stirring blade, 85 parts of water and a small amount of an antifoaming agent were put, and 15 g of completely saponified polyvinyl alcohol (CST / manufactured by Kuraray Co., Ltd.) was gradually added with stirring, and 90 ° C,
It was heated and dissolved for 60 minutes to obtain a 15% completely saponified polyvinyl alcohol aqueous solution (hereinafter, abbreviated as 15% CST aqueous solution).
【００２２】攪拌羽根を備えたガラス容器に 20%Z200水
溶液２５部、15%CST水溶液２５部、５０重量％アクリル
樹脂エマルジョン（Ｔ８２０１／旭化成工業株式会社）
３０部、カオリンクレー（ＳＴカオリンクレー／土谷カ
オリン工業株式会社製）２０部を順次加えて混合し、主
剤を得た。このｐＨは５．０であった。この主剤１００
部に対して、酸性物質として酒石酸（Ｌ−酒石酸／大日
本製薬株式会社製）４．０部を添加して、ｐＨが１．５
７の主剤を得た。この主剤１００部に対してイソシアネ
ート化合物（ＣＵ硬化剤／コニシ株式会社製）１５部を
添加し、充分に攪拌した後、第１液を得た。In a glass container equipped with a stirring blade, 25 parts of 20% Z200 aqueous solution, 25 parts of 15% CST aqueous solution, and 50 wt% acrylic resin emulsion (T8201 / Asahi Kasei Co., Ltd.)
30 parts of kaolin clay (ST kaolin clay / manufactured by Tsuchiya Kaolin Industry Co., Ltd.) was sequentially added and mixed to obtain a main agent. This pH was 5.0. This main ingredient 100
4.0 parts by weight of tartaric acid (L-tartaric acid / manufactured by Dainippon Pharmaceutical Co., Ltd.) was added as an acidic substance to a pH of 1.5.
7 base compounds were obtained. 15 parts of an isocyanate compound (CU curing agent / manufactured by Konishi Co., Ltd.) was added to 100 parts of this base material, and after sufficiently stirring, the first liquid was obtained.
【００２３】（第２液の調製）攪拌羽根を備えたガラス
容器中に水９６部を入れ、攪拌しながらコハク酸ジヒド
ラジド（コハク酸ジヒドラジド／大塚化学株式会社製）
４．０部を添加し、４％コハク酸ジヒドラジド水溶液
（以下、4%KDH 水溶液と略称する。) を得、これを第２
液とした。(Preparation of Second Liquid) 96 parts of water was placed in a glass container equipped with a stirring blade, and succinic acid dihydrazide (succinic acid dihydrazide / manufactured by Otsuka Chemical Co., Ltd.) was stirred.
4.0 parts was added to obtain a 4% succinic acid dihydrazide aqueous solution (hereinafter, abbreviated as 4% KDH aqueous solution).
It was a liquid.
【００２４】[0024]
【実施例１−２】酸性物質として酒石酸（Ｌ−酒石酸／
大日本製薬株式会社製）１．０部を添加する以外は実施
例１−１と同様な操作を行い、ｐＨが２．２６の第１液
を得た。第２液は実施例１−１と同じ組成の液を用い
た。Example 1-2 Tartaric acid (L-tartaric acid /
The same operation as in Example 1-1 was performed except that 1.0 part of Dainippon Pharmaceutical Co., Ltd.) was added to obtain a first liquid having a pH of 2.26. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【実施例１−３】酸性物質として酒石酸（Ｌ−酒石酸／
大日本製薬株式会社製）０．１部を添加する以外は実施
例１−１と同様な操作を行い、ｐＨが２．９１の第１液
を得た。第２液は実施例１−１と同じ組成の液を用い
た。Example 1-3 Tartaric acid (L-tartaric acid /
The same operation as in Example 1-1 was performed except that 0.1 part of Dainippon Pharmaceutical Co., Ltd.) was added to obtain a first liquid having a pH of 2.91. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【００２５】[0025]
【実施例１−４】酸性物質として酒石酸（Ｌ−酒石酸／
大日本製薬株式会社製）０．００４部を添加する以外は
実施例１−１と同様な操作を行い、ｐＨが４．００の第
１液を得た。第２液は実施例１−１と同じ組成の液を用
いた。以上の様にして酒石酸でｐＨを変えた第１液およ
びヒドラジン化合物を含有する第２液を調製した。この
各種第１液と第２液からなる接着剤組成物を用いて、前
記（初期接着強さ−割裂試験）の方法で積層体を製造し
た。ついで、この積層体の初期接着強さ（Ｎ）を測定し
た。結果を表１及び図４（酒石酸）に示す。Example 1-4 Tartaric acid (L-tartaric acid /
The same operation as in Example 1-1 was performed except that 0.004 part of Dainippon Pharmaceutical Co., Ltd.) was added to obtain a first liquid having a pH of 4.00. As the second liquid, the liquid having the same composition as in Example 1-1 was used. As described above, the first liquid whose pH was changed with tartaric acid and the second liquid containing the hydrazine compound were prepared. Using the adhesive composition composed of the various first liquids and the second liquids, a laminate was manufactured by the method of (Initial adhesive strength-Cleaving test). Then, the initial adhesive strength (N) of this laminate was measured. The results are shown in Table 1 and FIG. 4 (tartaric acid).
【００２６】[0026]
【実施例２−１】酸性物質として５０％クエン酸水溶液
（液体クエン酸/ 扶桑工業化学株式会社製）４．０部を
添加する以外は実施例１−１と同様な操作を行い、ｐＨ
が１．９７の第１液を得た。第２液は実施例１−１と同
じ組成の液を用いた。[Example 2-1] The same operation as in Example 1-1 was conducted except that 4.0 parts of a 50% aqueous citric acid solution (liquid citric acid / manufactured by Fuso Kogyo Kagaku Co., Ltd.) was added as an acidic substance, and the pH was adjusted.
The first liquid of 1.97 was obtained. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【実施例２−２】酸性物質として５０％クエン酸水溶液
（液体クエン酸/ 扶桑工業化学株式会社製）０．４部を
添加する以外は実施例１−１と同様な操作を行い、ｐＨ
が２．６６の第１液を得た。第２液は実施例１−１と同
じ組成の液を用いた。[Example 2-2] The same operation as in Example 1-1 was carried out except that 0.4 part of a 50% aqueous citric acid solution (liquid citric acid / manufactured by Fuso Kogyo Kagaku Co., Ltd.) was added as an acidic substance to obtain a pH value.
To obtain a first liquid of 2.66. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【実施例２−３】酸性物質として５０％クエン酸水溶液
（液体クエン酸/ 扶桑工業化学株式会社製）０．１部を
添加する以外は実施例１−１と同様な操作を行い、ｐＨ
が３．２４の第１液を得た。第２液は実施例１−１と同
じ組成の液を用いた。[Example 2-3] The same operation as in Example 1-1 was performed except that 0.1 part of a 50% citric acid aqueous solution (liquid citric acid / manufactured by Fuso Kogyo Kagaku Co., Ltd.) was added as an acidic substance, and the pH was adjusted.
To obtain a first liquid of 3.24. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【００２７】[0027]
【実施例２−４】酸性物質として５０％クエン酸水溶液
（液体クエン酸/ 扶桑工業化学株式会社製）０．０１部
を添加する以外は実施例１−１と同様な操作を行い、ｐ
Ｈが３．９４の第１液を得た。第２液は実施例１−１と
同じ組成の液を用いた。以上の様にしてクエン酸でｐＨ
を変えた第１液およびヒドラジン化合物を含有する第２
液を調製した。この各種第１液と第２液からなる接着剤
組成物を用いて、前記（初期接着強さ−割裂試験）の方
法で積層体を製造した。ついで、この積層体の初期接着
強さ（Ｎ）を測定した。結果を表２及び図４（クエン
酸）に示す。[Example 2-4] The same operation as in Example 1-1 was carried out except that 0.01 part of a 50% aqueous citric acid solution (liquid citric acid / manufactured by Fuso Kogyo Kagaku Co., Ltd.) was added as an acidic substance.
A first liquid having an H of 3.94 was obtained. As the second liquid, the liquid having the same composition as in Example 1-1 was used. As mentioned above, the pH is adjusted with citric acid.
Second liquid containing a different hydrazine compound and second liquid containing a hydrazine compound
A liquid was prepared. Using the adhesive composition composed of the various first liquids and the second liquids, a laminate was manufactured by the method of (Initial adhesive strength-Cleaving test). Then, the initial adhesive strength (N) of this laminate was measured. The results are shown in Table 2 and FIG. 4 (citric acid).
【００２８】[0028]
【実施例３−１】酸性物質として０．５モル/ Ｌ塩酸(
和光純薬工業株式会社製) ４．６部を添加する以外は実
施例１−１と同様な操作を行い、ｐＨが１．８０の第１
液を得た。第２液は実施例１−１と同じ組成の液を用い
た。[Example 3-1] 0.5 mol / L hydrochloric acid (
(Manufactured by Wako Pure Chemical Industries, Ltd.) The same operation as in Example 1-1 was carried out except that 4.6 parts were added, and the first pH was 1.80.
A liquid was obtained. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【実施例３−２】酸性物質として０．５モル/ Ｌ塩酸(
和光純薬工業株式会社製) １．０部を添加する以外は実
施例１−１と同様な操作を行い、ｐＨが２．９８の第１
液を得た。第２液は実施例１−１と同じ組成の液を用い
た。Example 3-2 0.5 mol / L hydrochloric acid (
(Manufactured by Wako Pure Chemical Industries, Ltd.) The same operation as in Example 1-1 was carried out except that 1.0 part was added, and the first pH was 2.98.
A liquid was obtained. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【実施例３−３】酸性物質として０．５モル/ Ｌ塩酸(
和光純薬工業株式会社製) ０．４部を添加する以外は実
施例１−１と同様な操作を行い、ｐＨが３．６７の第１
液を得た。第２液は実施例１−１と同じ組成の液を用い
た。Example 3-3 0.5 mol / L hydrochloric acid (
(Manufactured by Wako Pure Chemical Industries, Ltd.) The same operation as in Example 1-1 was carried out except that 0.4 part was added, and the first pH was 3.67.
A liquid was obtained. As the second liquid, the liquid having the same composition as in Example 1-1 was used.
【００２９】[0029]
【実施例３−４】酸性物質として０．５モル/ Ｌ塩酸(
和光純薬工業株式会社製) ０．０４部を添加する以外は
実施例１−１と同様な操作を行い、ｐＨが４．０６の第
１液を得た。第２液は実施例１−１と同じ組成の液を用
いた。以上の様にして塩酸でｐＨを変えた第１液および
ヒドラジン化合物を含有する第２液を調製した。この各
種第１液と第２液からなる接着剤組成物を用いて、前記
（初期接着強さ−割裂試験）の方法で積層体を製造し
た。ついで、この積層体の初期接着強さ（Ｎ）を測定し
た。結果を表３及び図４（塩酸）に示す。[Example 3-4] 0.5 mol / L hydrochloric acid (
(Wako Pure Chemical Industries, Ltd.) The same operation as in Example 1-1 was carried out except that 0.04 part was added to obtain a first liquid having a pH of 4.06. As the second liquid, the liquid having the same composition as in Example 1-1 was used. As described above, the first liquid in which the pH was changed with hydrochloric acid and the second liquid containing the hydrazine compound were prepared. Using the adhesive composition composed of the various first liquids and the second liquids, a laminate was manufactured by the method of (Initial adhesive strength-Cleaving test). Then, the initial adhesive strength (N) of this laminate was measured. The results are shown in Table 3 and FIG. 4 (hydrochloric acid).
【００３０】[0030]
【比較例１】実施例１−１で得られた主剤（ｐＨ調整な
し）を第１液とする以外は実施例１−１と同様にして積
層体を製造した。ついで、この積層体の初期接着強さ
（Ｎ）を測定した。結果を表１〜３及び図４（比較例
１）に示す。Comparative Example 1 A laminate was produced in the same manner as in Example 1-1, except that the first liquid was the main agent (without pH adjustment) obtained in Example 1-1. Then, the initial adhesive strength (N) of this laminate was measured. The results are shown in Tables 1 to 3 and FIG. 4 (Comparative Example 1).
【００３１】[0031]
【表１】 [Table 1]
【００３２】[0032]
【表２】 [Table 2]
【００３３】[0033]
【表３】 [Table 3]
【００３４】表１〜３及び図４より明らかなように、初
期接着強さ（Ｎ）は酒石酸、クエン酸が高く、塩酸は低
くなっており、クエン酸と酒石酸に代表されるオキシカ
ルボン酸の優位性は明白である。As is clear from Tables 1 to 3 and FIG. 4, the initial adhesive strength (N) is high in tartaric acid and citric acid, and low in hydrochloric acid. The initial adhesive strength (N) of oxycarboxylic acids represented by citric acid and tartaric acid is low. The advantage is clear.
【００３５】[0035]
【発明の効果】本発明により、集成材等の木材加工産業
等に好適に使用される２液分別塗布型の速硬化耐水型接
着剤を提供することができる。この接着剤は、とくに閉
鎖堆積時間を３分間以上とすることができ、閉鎖堆積時
間が比較的長いので、接着剤を塗布後直ちに圧締操作に
入ることなく、引き続き接着剤塗布／ひき板貼り合わせ
操作を続けることができ、前記操作が終了した後に圧締
操作を１回するだけで済み、集成材等最終製品を得る時
間が大幅に短縮することが可能となる。その上、得られ
た集成材は優れた接着強度や煮沸繰り返し試験に合格す
る高度な耐水性を備えている。Industrial Applicability According to the present invention, it is possible to provide a two-liquid fractional-coating type quick-setting water resistant adhesive which is suitable for use in the wood processing industry such as laminated wood. This adhesive can have a closed deposition time of 3 minutes or more, and has a relatively long closed deposition time, so that the adhesive application / grinding plate application can be continued without immediately performing a pressing operation after the adhesive is applied. The matching operation can be continued, and only one pressing operation is required after the above operation is completed, and the time required to obtain the final product such as laminated wood can be significantly shortened. In addition, the obtained laminated wood has excellent adhesive strength and high water resistance that passes the repeated boiling test.
【図１】本発明の接着剤を用いて得られた集成材の一つ
の例を示す図である。FIG. 1 is a view showing an example of a laminated material obtained by using the adhesive of the present invention.
【図２】従来の接着剤を用いて得られた集成材の一つの
例を示す図である。FIG. 2 is a view showing an example of a laminated material obtained by using a conventional adhesive.
【図３】初期接着強さ−割裂試験のための積層体を示す
図である。FIG. 3 shows an initial bond strength-laminate for split test.
【図４】本発明の接着剤を用いて集成材を製造したとき
の初期接着強さ（Ｎ）を測定した結果を示すグラフであ
る。FIG. 4 is a graph showing the results of measuring the initial bond strength (N) when a laminated material was manufactured using the adhesive of the present invention.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１４年３月２０日（２００２．３．２
０）[Submission date] March 20, 2002 (2002.3.2)
0)
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
フロントページの続き Ｆターム(参考） 4J040 BA031 BA111 CA071 CA081 CA091 CA141 DA141 DB051 DD021 DE021 DE031 DF041 EF291 EF301 GA07 HA096 HA226 HA256 HB24 HC15 JA03 JA13 JB09 LA07 MA04 MA09 NA12 PA26 PA33 Continued front page F-term (reference) 4J040 BA031 BA111 CA071 CA081 CA091 CA141 DA141 DB051 DD021 DE021 DE031 DF041 EF291 EF301 GA07 HA096 HA226 HA256 HB24 HC15 JA03 JA13 JB09 LA07 MA04 MA09 NA12 PA26 PA33
Claims (9)
と酸性物質とを含むエマルジョンとイソシアネート化合
物とからなる第１液（但し、第１液のｐＨは１．０〜
４．０である。）と、 (B)ヒドラジン化合物を０．１〜
５０重量％含む水溶液又はエマルジョンである第２液と
からなることを特徴とする２液分別塗布型の速硬化耐水
型接着剤組成物。1. A first liquid comprising an emulsion containing (A) an acetoacetyl group-containing polymer compound and an acidic substance, and an isocyanate compound (provided that the pH of the first liquid is 1.0 to
It is 4.0. ), And (B) a hydrazine compound of 0.1 to
A two-liquid fractional-coating type quick-setting water-resistant adhesive composition comprising a second liquid which is an aqueous solution or emulsion containing 50% by weight.
から選ばれる１種であることを特徴とする請求項１記載
の２液分別塗布型の速硬化耐水型接着剤組成物。2. The two-liquid fractional-coating type quick-setting water-resistant adhesive composition according to claim 1, wherein the acidic substance is one selected from an inorganic acid, a metal salt and an organic acid.
を特徴とする請求項２記載の２液分別塗布型の速硬化耐
水型接着剤組成物。3. The two-liquid fractional-coating type quick-setting water resistant adhesive composition according to claim 2, wherein the organic acid is an oxycarboxylic acid.
酸から選ばれる１種で以上であることを特徴とする請求
項３記載の２液分別塗布型の速硬化耐水型接着剤組成
物。4. The two-component fractional-coating type quick-setting water-resistant adhesive composition according to claim 3, wherein the oxycarboxylic acid is one or more selected from tartaric acid and citric acid.
むエマルジョンが、アセトアセチル基含有高分子化合物
と他の樹脂を含有するエマルジョンであることを特徴と
する請求項１〜４のいずれかに記載の２液分別塗布型の
速硬化耐水型接着剤組成物。5. The emulsion according to claim 1, wherein the emulsion containing the acetoacetyl group-containing polymer compound is an emulsion containing the acetoacetyl group-containing polymer compound and another resin. A two-liquid fractional coating type quick-curing water-resistant adhesive composition.
アセトアセチル基含有ポリビニルアルコールであること
を特徴とする請求項１〜５のいずれかに記載の２液分別
塗布型の速硬化耐水型接着剤組成物。6. An acetoacetyl group-containing polymer compound,
It is polyvinyl alcohol containing an acetoacetyl group, The rapid hardening water resistant adhesive composition of the two-liquid fractional coating type according to any one of claims 1 to 5.
ジドであることを特徴とする請求項１〜６のいずれかに
記載の２液分別塗布型の速硬化耐水型接着剤組成物。7. The two-component fractional-coating type quick-setting water resistant adhesive composition according to claim 1, wherein the hydrazine compound is an organic diacid dihydrazide.
れかを１の部材の表面に塗布する工程と、当該塗布面に
１の部材の表面に塗布されてはいない第１液又は第２液
を重ねて塗布（堆積塗布）する工程と、前記重ねて塗布
（堆積塗布）された面と他の部材とを接触して１の部材
と他の部材とを貼り合わせる工程を含むことを特徴とす
る１の部材と他の部材との接着方法。8. A step of applying either the first liquid or the second liquid according to claim 1 to the surface of one member, and the first liquid which is not applied to the surface of the one member on the application surface. Alternatively, the method includes a step of applying the second liquid in a stacked manner (deposition application), and a step of bringing the surface applied in a stacked manner (deposition application) into contact with another member to bond one member to another member. A method for adhering one member to another member, characterized in that
れかを１の部材の表面に塗布すると共に、１の部材の表
面に塗布されていない第１液又は第２液を他の部材の表
面に塗布する工程と、１の部材の塗布面と他の部材の塗
布面とを接触して１の部材と他の部材とを貼り合わせる
工程を含むことを特徴とする１の部材と他の部材との接
着方法。9. The first liquid or the second liquid according to claim 1 is applied to the surface of one member, and the first liquid or the second liquid not applied to the surface of the other member is added. 1. A member according to claim 1, which includes a step of applying to the surface of the member of 1 and a step of contacting the applying surface of the 1 member with the applying surface of another member to bond the 1 member and the other member. Method of adhering to other members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001307335A JP3347716B1 (en) | 2001-10-03 | 2001-10-03 | Two-component, separate-coating, fast-curing, water-resistant adhesive composition and bonding method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001307335A JP3347716B1 (en) | 2001-10-03 | 2001-10-03 | Two-component, separate-coating, fast-curing, water-resistant adhesive composition and bonding method using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3347716B1 JP3347716B1 (en) | 2002-11-20 |
| JP2003113361A true JP2003113361A (en) | 2003-04-18 |
Family
ID=19126812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001307335A Expired - Fee Related JP3347716B1 (en) | 2001-10-03 | 2001-10-03 | Two-component, separate-coating, fast-curing, water-resistant adhesive composition and bonding method using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3347716B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006316133A (en) * | 2005-05-11 | 2006-11-24 | Konishi Co Ltd | Two-pack curable aqueous adhesive |
| WO2010150673A1 (en) * | 2009-06-23 | 2010-12-29 | コニシ株式会社 | Liquid two-part fast-curing water-based adhesive of separate-application type and method for bonding using the water-based adhesive |
-
2001
- 2001-10-03 JP JP2001307335A patent/JP3347716B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006316133A (en) * | 2005-05-11 | 2006-11-24 | Konishi Co Ltd | Two-pack curable aqueous adhesive |
| WO2010150673A1 (en) * | 2009-06-23 | 2010-12-29 | コニシ株式会社 | Liquid two-part fast-curing water-based adhesive of separate-application type and method for bonding using the water-based adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3347716B1 (en) | 2002-11-20 |
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