JP2003286470A - Aqueous hot-melt adhesive composition - Google Patents
Aqueous hot-melt adhesive compositionInfo
- Publication number
- JP2003286470A JP2003286470A JP2002091970A JP2002091970A JP2003286470A JP 2003286470 A JP2003286470 A JP 2003286470A JP 2002091970 A JP2002091970 A JP 2002091970A JP 2002091970 A JP2002091970 A JP 2002091970A JP 2003286470 A JP2003286470 A JP 2003286470A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- aqueous
- parts
- adhesive composition
- melt adhesive
- 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.)
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- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、基材に塗布された
接着剤は乾燥時に粘着性を呈さず、エネルギー照射で接
着性を発揮し、更に接着体をリサイクル（再利用若しく
は分別廃棄処理）する場合には、エネルギー照射で容易
に剥がれる易剥離型水性ホットメルト接着剤組成物に関
する。TECHNICAL FIELD The present invention relates to an adhesive applied to a base material, which does not exhibit tackiness when dried, exhibits adhesiveness upon irradiation with energy, and further recycles the adhesive (reuse or separate disposal). In this case, the present invention relates to an easily peelable water-based hot melt adhesive composition which is easily peeled off by irradiation with energy.
【０００２】[0002]
【従来の技術】基材を接着剤で貼り合わせた接着体は、
建築用部材、電気電子部品、自動車用部品、事務用品、
生活用品等数多くの用途に用いられている。中でも、自
動車用部品においては環境問題より、基材の脱塩化ビニ
ル樹脂（以下塩ビと略称する）化が急速に進められてお
り、昨今、塩ビ部材をほとんどポリオレフィン（以下Ｐ
Ｏと略称する）に代わっている。難接着体のＰＯ基材の
接着ゆえ、粘着性を有する水性樹脂エマルジョン型接着
剤が主に用いられてきたが、接着剤を塗布乾燥させた基
材を、自動車部材として熱圧成型接着加工するまでの
間、堆積保管中に基材同士が共着きを起こす問題や、自
動車部材としての接着体が不要となった場合、リサイク
ル（再利用若しくは分別廃棄処理）する際、エネルギー
を照射しても容易に剥離できない等の問題があった。2. Description of the Related Art An adhesive body made by bonding base materials with an adhesive is
Building materials, electrical and electronic parts, automotive parts, office supplies,
It is used for many purposes such as daily necessities. Among them, in automobile parts, dechlorinated vinyl resin (hereinafter abbreviated as polyvinyl chloride) as a base material has been rapidly promoted due to environmental problems.
Abbreviated as O). A water-based resin emulsion type adhesive having stickiness has been mainly used because of adhesion of a PO base material of a difficult-to-adhere body, but a base material obtained by applying and drying the adhesive is subjected to thermocompression molding adhesion processing as an automobile member. In the meantime, if there is a problem that the base materials stick to each other during storage, or if the adhesive body as an automobile member is no longer needed, even if it is irradiated with energy during recycling (reuse or separate disposal) There was a problem that it could not be easily peeled off.
【０００３】単に剥離性を付与させるだけの問題であれ
ば、易剥離性接着剤として、例えば特開平５−２６９９
０６号公報には、基材／架橋性ポリマー／発泡剤を含有
する架橋性ポリマー／架橋性ポリマー／基材からなる積
層体、ならびに、基材／発泡剤を含有する架橋性ポリマ
ー／基材からなる積層体が開示され、該積層体をエネル
ギー照射することにより、基材を剥離、回収し得ること
が報告されており、特開平１３−２１２９００号公報に
は、（１）基材、（２）発泡剤を含有する架橋性ポリマ
ー、（３）架橋性ポリマーを順次積層してなることを特
徴とする積層体、及び該積層体から再利用し得る基材の
回収方法が報告されていが、熱活性がないため、接着剤
の塗布された基材を加熱し、成型接着加工によるＰＯ接
着には適さない。If the problem is simply to impart peelability, then as an easily peelable adhesive, for example, JP-A-5-2699.
No. 06 discloses a laminate comprising a substrate / crosslinkable polymer / crosslinkable polymer containing a foaming agent / crosslinkable polymer / substrate, and a substrate / crosslinkable polymer containing a foaming agent / substrate. Is disclosed, and it is reported that the substrate can be peeled and recovered by irradiating the laminate with energy, and JP-A No. 13-212900 discloses (1) substrate, (2) ) A cross-linkable polymer containing a foaming agent, (3) a laminate characterized by sequentially laminating a cross-linkable polymer, and a method for recovering a base material that can be reused from the laminate have been reported, Since it has no thermal activity, it is not suitable for PO bonding by molding and bonding by heating the base material coated with the adhesive.
【０００４】また、水性樹脂エマルジョン型接着剤にお
いては、エチレン酢酸ビニル共重合体エマルジョンに発
泡剤と充填剤を配合した接着剤が、熱エネルギー照射で
剥離可能と紹介されているが、同じく熱活性がなくＰＯ
との接着に適していない。Regarding the water-based resin emulsion type adhesive, it is introduced that an adhesive obtained by mixing a foaming agent and a filler in an ethylene vinyl acetate copolymer emulsion can be peeled off by heat energy irradiation. PO without
Not suitable for bonding with.
【０００５】[0005]
【発明が解決しようとする課題】本願の目的は、不要と
なった時には容易に剥離でき、接着基材をリサイクル
（再利用若しくは分別廃棄処理）させることが可能な、
初期接着性と剥離性のバランスの採れた、建築用部材、
電気電子部品、自動車用部品、事務用品、生活用品等数
多くの用途に用いられ接着剤の提供にある。The object of the present invention is to enable easy peeling when no longer needed and to recycle (reuse or separate disposal) the adhesive base material.
Building materials with a good balance of initial adhesiveness and peelability,
It is used to provide adhesives used in many applications such as electrical and electronic parts, automobile parts, office supplies and daily necessities.
【０００６】[0006]
【課題を解決するための手段】このような状況下、本発
明者等は粘着性を有する水性樹脂エマルジョン型接着剤
が主に用いられてきた自動車用部品の基材中、内装材ダ
ッシュインシュレーター（床及びエンジンルーム隔壁に
敷かれた防音材）基材、例えば、ＰＯシートとポリエス
テル、綿、麻、ナイロン、アクリル繊維等の単独、若し
くは数種混された静電植毛パイル、カーペット、フェル
ト等に代表される基材の接着において、繊維側に接着剤
をエアースプレー塗布し、室温で乾燥させ堆積保管後、
エネルギー照射により接着剤を再活性させ接着し、本接
着体を、再度エネルギーを照射し剥離させる手順で、接
着剤乾燥面の粘着性による堆積保管時の基材の共付きの
有無、接着性、更に剥離性を鋭意検討の結果、粘着付与
樹脂を主要成分とし、水性樹脂エマルジョン及び離型剤
を配合することで目的が達成されることを見出し本発明
を完成させた。Under these circumstances, the present inventors have found that the interior material dash insulator (inside material dash insulator) in the base material of automobile parts for which the water-based resin emulsion adhesive having tackiness has been mainly used. Soundproof material laid on floors and partition walls of engine rooms) For example, PO sheet and polyester, cotton, hemp, nylon, acrylic fibers, etc., alone or as a mixture of several kinds, electrostatic flocking pile, carpet, felt, etc. In the adhesion of a typical base material, an adhesive is air-sprayed on the fiber side, dried at room temperature, deposited and stored,
The adhesive is reactivated by energy irradiation to bond it, and the main body is irradiated with energy again and peeled off.By adhesion of the dried surface of the adhesive, presence or absence of sticking of the base material during deposition storage, adhesiveness, Further, as a result of earnestly studying the releasability, it was found that the object can be achieved by adding a tackifying resin as a main component and an aqueous resin emulsion and a release agent, and completed the present invention.
【０００７】[0007]
【発明の実施の形態】本発明の（Ａ）粘着付与樹脂とし
ては、例えば、天然又は重合ロジン、変性ロジン及び水
添ロジンのグリセリンエステル、トリエチレングリコー
ルエステル、ペンタエリスリトールエステルに代表され
るロジン系粘着付与樹脂、α−ピネン、β−ピネン、ジ
テルペン、テルペンフェノールに代表されるテルペン樹
脂、脂肪族石油樹脂、芳香族炭化水素樹脂、クマロン樹
脂、クマロンインデン樹脂、キシレン樹脂、アルキルフ
ェノール樹脂等の軟化点５０〜１５０℃のものが挙げら
れ、これらの水性ディスパージョンが好適であり、内Ｐ
Ｏとの密着性からロジン系粘着付与樹脂好適である。ま
た、軟化点については低温接着性と、夏場の堆積保管に
おける基材同士の共着きのバランスを考慮すると、７０
〜１３０℃の範囲が好適である。BEST MODE FOR CARRYING OUT THE INVENTION Examples of the tackifying resin (A) of the present invention include rosin resins represented by natural or polymerized rosin, modified rosin and hydrogenated rosin glycerin ester, triethylene glycol ester, and pentaerythritol ester. Softening of tackifier resin, α-pinene, β-pinene, diterpene, terpene resin represented by terpene phenol, aliphatic petroleum resin, aromatic hydrocarbon resin, coumarone resin, coumarone indene resin, xylene resin, alkylphenol resin, etc. Those having a point of 50 to 150 ° C. may be mentioned, and these aqueous dispersions are suitable.
A rosin-based tackifying resin is suitable because of its adhesiveness with O. Regarding the softening point, when considering the balance between low-temperature adhesiveness and co-adhesion between base materials during deposition storage in summer, it is 70
The range of to 130 ° C is suitable.
【０００８】本発明の（Ｂ）水性樹脂エマルジョンとし
ては、アクリルエマルジョン、酢酸ビニルエマルジョ
ン、酢酸ビニル−エチレン系共重合体エマルジョン、塩
化ビニルエマルジョン、塩化ビニリデン−塩化ビニル共
重合体エマルジョン、スチレン−ブタジエン共重合体ラ
テックス、アクリロニトリル−ブタジエン共重合体ラテ
ックス、、メチルメタクリレート−ブタジエン共重合体
ラテックス、メチルメタクリレート−スチレン−ブタジ
エン共重合体ラテックス、天然ゴム等のガラス転移温度
（以下Ｔｇ略称する）が−３０〜＋５℃のものが挙げら
れる。−３０℃より低い場合は、乾燥させた接着剤に粘
着性が残り、堆積保管時に基材同士の共着きを起こし、
＋５℃より高い場合は冬季の造膜性に欠け、粘着付与樹
脂の粉落ちし実用性に欠ける。Examples of the (B) aqueous resin emulsion of the present invention include acrylic emulsion, vinyl acetate emulsion, vinyl acetate-ethylene copolymer emulsion, vinyl chloride emulsion, vinylidene chloride-vinyl chloride copolymer emulsion, styrene-butadiene copolymer. Polymer latex, acrylonitrile-butadiene copolymer latex, methyl methacrylate-butadiene copolymer latex, methyl methacrylate-styrene-butadiene copolymer latex, natural rubber and the like have a glass transition temperature (hereinafter abbreviated as Tg) of -30 to 30. The thing of +5 degreeC is mentioned. If the temperature is lower than -30 ° C, the dried adhesive remains tacky, causing co-adhesion of the base materials during storage and storage,
If the temperature is higher than + 5 ° C, the film-forming property in winter is poor, and the tackifying resin powder falls off, resulting in poor practicality.
【０００９】本水性樹脂エマルジョンを使用する主目的
は、室温では造膜性がなく、室温では粉落ちしてしまう
高軟化点の粘着付与樹脂を均一に基材表面に付着させる
役目を担っている。本水性樹脂エマルジョンの配合量
は、粘着性付与樹脂の固形分１００重量部に対して、固
形分として５〜５０重量部の範囲である。好ましくは１
０〜３０重量部である。５重量部より少ない場合は粘着
付与樹脂の粉落ちを起こし、５０重量部より多い場合
は、乾燥させた接着剤に粘着性が残り、いずれの場合も
目的を達しない。The main purpose of using the present aqueous resin emulsion is to play a role of uniformly adhering a tackifying resin having a high softening point, which has no film-forming property at room temperature and falls off at room temperature, to the substrate surface. . The amount of the present water-based resin emulsion to be compounded is in the range of 5 to 50 parts by weight as solid content based on 100 parts by weight of solid content of the tackifying resin. Preferably 1
It is 0 to 30 parts by weight. If it is less than 5 parts by weight, the tackifying resin will fall off, and if it is more than 50 parts by weight, the dried adhesive will remain tacky and the purpose will not be achieved in any case.
【００１０】本発明の離型剤としては、シリコンワック
スを始め、カルナウバワックス、ライスワックス、キャ
ンデリラワックス、木ロウ、ホホバ油等の植物系ワック
ス、蜜ロウ、鯨ロウ、ラノリン等の動物系ワックス、モ
ンタンワックス、オゾケライト、セレシン等の鉱物系ワ
ックス、パラフインワックス、マイクロクリスタリンワ
ックス、ペトロラクタム等の石油ワックス、ポリエチレ
ンワックス、ポリプロピレンワックス等の合成炭化水
素、モンタンワックス誘導体、パラフィンワックス誘導
体、マイクロクリスタリンワックス誘導体等の変性ワッ
クス，硬化ひまし油等の水素化ワックス、１、２ヒドロ
キシステアリン酸、ステアリン酸アミド、無水フタル酸
イミド等の脂肪酸、脂肪酸アミド等の水性ディスパージ
ョンの融点が、４０〜１５０℃のものが挙げらる。中で
も、エネルギーを照射して基材を剥離回収する時には、
容易に剥離し得る程度に接着剤と基材界面に移行する、
７０〜１００℃のものが好適である。Examples of the release agent of the present invention include silicon wax, plant waxes such as carnauba wax, rice wax, candelilla wax, wax and jojoba oil, and animal waxes such as beeswax, whale wax and lanolin. Mineral waxes such as wax, montan wax, ozokerite and ceresin, paraffin wax, petroleum wax such as microcrystalline wax and petrolactam, synthetic hydrocarbons such as polyethylene wax and polypropylene wax, montan wax derivative, paraffin wax derivative, microcrystalline wax Modified waxes such as derivatives, hydrogenated waxes such as hydrogenated castor oil, fatty acids such as 1,2-hydroxystearic acid, stearic acid amide and phthalic anhydride, and melting points of aqueous dispersions such as fatty acid amides of 40. Ageraru those of 150 ℃. Above all, when irradiating energy to peel and collect the base material,
Transfers to the interface between the adhesive and the substrate to the extent that it can be easily peeled off,
It is preferably 70 to 100 ° C.
【００１１】使用時には充分接着力を堅持し、エネルギ
ーを照射して基材を剥離回収する時には、容易に剥離し
得る程度に接着剤と基材界面に移行する融点のものが好
ましい。[0011] It is preferable that the adhesive has a sufficient melting point at the time of use, and has a melting point at which the adhesive and the base material move to the interface so that the base material can be easily peeled off when the base material is peeled and recovered by irradiation with energy.
【００１２】該離型剤の配合量は、粘着性付与樹脂の固
形分１００重量部に対して、固形分として５〜５０重量
部の範囲である。好ましくは１０〜２０重量部である。
５重量部より少ない場合は、エネルギーを照射して基材
を剥離回収する時に容易に剥離せず、５０重量部より多
い場合は、基材との接着性が著しく低下し、いずれの場
合も目的を達しない。The compounding amount of the releasing agent is in the range of 5 to 50 parts by weight as the solid content relative to 100 parts by weight of the solid content of the tackifying resin. It is preferably 10 to 20 parts by weight.
If it is less than 5 parts by weight, it will not be easily peeled off when the substrate is peeled and recovered by irradiation with energy, and if it is more than 50 parts by weight, the adhesiveness with the substrate will be significantly reduced. Does not reach
【００１３】かくして得られた水性ホットメルト接着剤
組成物は、乾燥させた接着剤に粘着性がなく、堆積保管
時に基材同士の共着きを起さず、エネルギー照射時には
容易に剥離する。これら性能を損なわない範囲で、必要
に応じ、無機、有機若しくは熱膨張性中空球体発泡剤、
充填剤、消泡剤、着色剤、増粘剤、遥変性付与剤等の薬
剤を配合しても良い。The water-based hot-melt adhesive composition thus obtained has no tackiness to the dried adhesive, does not cause co-adhesion between the substrates during deposition storage, and easily peels off upon irradiation with energy. Inorganic, organic or thermally expandable hollow sphere foaming agent,
You may mix | blend agents, such as a filler, a defoaming agent, a coloring agent, a thickener, and a far-modifying agent.
【００１４】本発明の接着体を剥離せしめるために照射
するエネルギーとしては、例えば紫外線、可視光、赤外
線、レーザー光線等の光エネルギー、マイクロ波、超音
波、電波、磁場等の電磁気エネルギー、加熱，冷却等の
熱エネルギー等が挙げられ、中でも光エネルギー、熱エ
ネルギー照射が好ましく、とりわけ加熱が好適である。
具体的な剥離回収の方法としては、例えば、乾燥機に接
着体を入れ、８０〜２００℃程度、好ましくは１００〜
１５０℃程度で加熱するこ方法が挙げられ、中でも接着
体の大きさに比較的左右されず、設備的に安価で、短時
間に接着体を加熱できる点で、遠赤外線ヒーター、また
はベルトコンベアー型トンネルドライヤー等の加熱方式
が好適である。The energy to be applied to peel off the adhesive of the present invention includes, for example, light energy such as ultraviolet rays, visible light, infrared rays and laser beams, electromagnetic energy such as microwaves, ultrasonic waves, radio waves, magnetic fields, heating and cooling. And the like, and among them, light energy and heat energy irradiation are preferable, and heating is particularly preferable.
As a specific method for peeling and collecting, for example, the adhesive is put in a dryer, and the temperature is about 80 to 200 ° C., preferably 100 to
A method of heating at about 150 ° C. is mentioned. Among them, far-infrared heater or belt conveyor type is relatively inexpensive depending on the size of the adhesive body, is inexpensive in equipment, and can heat the adhesive body in a short time. A heating method such as a tunnel dryer is suitable.
【００１５】[0015]
【実施例】以下に実施例を示して、本発明を更に詳細に
説明するが、本発明はこれらによって限定されるもので
はない。
［実施例１］攪拌機付き容器に（Ａ）粘着性付与樹脂の
水性エマルジョンとして、スーパーエステルＥ−７２０
（荒川化学工業(株)製、ロジンペンタエリスリトールエ
ステル、軟化点１００℃、固形分５０％、粘度１００ｍ
Ｐａ・ｓ、ＰＨ７）を固形分として１００部採取し、
（Ｂ）水性樹脂エマルジョンとして、ストラクトボンド
５０２８（三井化学（株）製、アクリルエマルジョン、
ガラス転移温度（Ｔｇ）０℃、固形分４７％、粘度４０
００ｍＰａ・ｓ、ＰＨ７）を固形分として３０重量部、
（Ｃ）離型剤として、ＫＭ−５６（エクソンモービル石
油（株）製、カルナウバワックスデイスパージョン、固
形分４０％、融点８０℃、粘度５０ｍＰａ・ｓ、ＰＨ
７）を固形分として２０重量部を順次攪拌しながら混合
し、本発明の接着剤組成物を得た。因みに粘度は１００
０ｍＰａ・ｓであった。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. [Example 1] Super Ester E-720 as an aqueous emulsion of (A) tackifying resin in a container equipped with a stirrer.
(Arakawa Chemical Industry Co., Ltd., rosin pentaerythritol ester, softening point 100 ° C., solid content 50%, viscosity 100 m
100 parts of Pa · s, PH7) as solid content,
(B) As an aqueous resin emulsion, Struct Bond 5028 (manufactured by Mitsui Chemicals, Inc., acrylic emulsion,
Glass transition temperature (Tg) 0 ° C., solid content 47%, viscosity 40
00 mPa · s, PH7) as a solid content of 30 parts by weight,
(C) As a release agent, KM-56 (manufactured by ExxonMobil Oil Co., Ltd., Carnauba wax dispersion, solid content 40%, melting point 80 ° C., viscosity 50 mPa · s, PH
20 parts by weight of 7) as a solid content were sequentially stirred and mixed to obtain an adhesive composition of the present invention. By the way, the viscosity is 100
It was 0 mPa · s.
【００１６】本接着剤を岩田塗装機（株）製エアースプ
レガンを用い、自動車内装材のダッシュインシュレータ
ー（床及びエンジンルーム隔壁に敷かれた防音材）基材
の、綿、麻、ナイロン、アクリル、ポリエステル繊維等
の混合フェルトに４０ｇ／ｍ 2塗布し、３０分間室温乾
燥させ同条件下で２４時間堆積保管した。本フェルトを
１００℃オーブンに１分間入れ再活性させ、ただちにＰ
Ｏシート（三井化学（株）製、商品名ミラストマー、厚
み３ｍｍにシート化）と貼り合わせ０．１ｋｇ／ｍ２の
加重で１０秒間圧着した。本接着体を１６８時間室温放
置後、１２０℃オーブンで２分間加熱し、取り出し後、
ただちに指先にて剥離性を確認した。各工程毎に本発明
の目的とする（粘着性付与樹脂の粉落ちの有無，基材同
士の共付きの有無、接着性、剥離性等）物性を確認し結
果を表１［表１］に示した。This adhesive is applied to the air spray manufactured by Iwata Coating Machine Co., Ltd.
Dash insulator for automobile interior materials using regun
-(Soundproof material laid on floor and engine room bulkhead) Base material
, Cotton, hemp, nylon, acrylic, polyester fiber etc.
40g / m for mixed felt 2Apply and dry at room temperature for 30 minutes
It was dried and deposited and stored under the same conditions for 24 hours. Book felt
Immediately put it in a 100 ° C oven for 1 minute to reactivate it, and immediately
O sheet (Mitsui Chemicals, Inc., trade name Mirastomer, Atsushi)
Sheet of 3 mm) and laminated with 0.1 kg / m2
It pressure-bonded for 10 seconds. Leave this adhesive at room temperature for 168 hours.
After placing, heat in an oven at 120 ° C for 2 minutes, take out,
Immediately, the peelability was confirmed with a fingertip. The present invention for each process
The purpose is to determine whether or not the tackifying resin has fallen off the powder,
Check the physical properties (presence / absence of adhesives, adhesiveness, peelability, etc.)
The results are shown in Table 1 [Table 1].
【００１７】［実施例２］攪拌機付き容器に（Ａ）粘着
性付与樹脂の水性エマルジョンとして、スーパーエステ
ルＥ−６２５（荒川化学工業（株）製、ロジンペンタエ
リスリトールエステル、軟化点１２５℃、固形分５０
％、粘度１００ｍＰａ・ｓ、ＰＨ７）を固形分として１
００部採取し、（Ｂ）水性樹脂エマルジョンとして、ス
トラクトボンド１３５１（三井化学（株）製、スチレン
−ブタジエン共重合ラテックス、ガラス転移温度（Ｔ
ｇ）−２５℃、固形分４７％、粘度１００ｍＰａ・ｓ、
ＰＨ７）を固形分として２０重量部、（Ｃ）離型剤とし
て、実施例１で用いたＫＭ−５６を固形分として３０重
量部、少量のポリアクリル酸エマルジョンで増粘させ、
本発明の接着剤組成物を得た。因みに粘度は２０００ｍ
Ｐａ・ｓであった。本接着剤を実施例１に準じ、接着加
工し本発明の目的とする物性を確認し、結果を表１［表
１］に示した。Example 2 In a container equipped with a stirrer, (A) as an aqueous emulsion of a tackifying resin, Super Ester E-625 (manufactured by Arakawa Chemical Industry Co., Ltd., rosin pentaerythritol ester, softening point 125 ° C., solid content) was used. Fifty
%, Viscosity 100 mPa · s, PH7) as solid content of 1
00 parts were collected, and as (B) aqueous resin emulsion, Structbond 1351 (manufactured by Mitsui Chemicals, Inc., styrene-butadiene copolymer latex, glass transition temperature (T
g) -25 ° C, solid content 47%, viscosity 100 mPa · s,
PH7) as a solid content of 20 parts by weight, (C) as a releasing agent, KM-56 used in Example 1 as a solid content of 30 parts by weight, and thickened with a small amount of a polyacrylic acid emulsion,
An adhesive composition of the present invention was obtained. By the way, the viscosity is 2000m.
It was Pa · s. This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００１８】［実施例３］攪拌機付き容器に（Ａ）粘着
性付与樹脂の水性エマルジョンとして、スーパーエステ
ルＥ−７１０（荒川化学工業（株）製、ロジングリセリ
ンエステル、軟化点７０℃、固形分５０％、粘度１００
ｍＰａ・ｓ、ＰＨ７）を固形分として１００部採取し、
（Ｂ）水性樹脂エマルジョンとして、ストラクトボンド
５０２８（三井化学（株）製、アクリルエマルジョン、
ガラス転移温度（Ｔｇ）０℃、固形分４７％、粘度４０
００ｍＰａ・ｓ、ＰＨ７）を固形分として２０重量部、
（Ｃ）離型剤として、実施例１で用いたＫＭ−５６を実
施例１同量用い、本発明の接着剤組成物を得た。因みに
粘度は１０００ｍＰａ・ｓであった。本接着剤を実施例
１に準じ、接着加工し本発明の目的とする物性を確認
し、結果を表１［表１］に示した。[Example 3] Super Ester E-710 (manufactured by Arakawa Chemical Industry Co., Ltd., rosin glycerin ester, softening point 70 ° C, solid content 50) was used as an aqueous emulsion of (A) tackifying resin in a container equipped with a stirrer. %, Viscosity 100
100 parts of mPa · s, PH7) as solid content,
(B) As an aqueous resin emulsion, Struct Bond 5028 (manufactured by Mitsui Chemicals, Inc., acrylic emulsion,
Glass transition temperature (Tg) 0 ° C., solid content 47%, viscosity 40
00 mPa · s, PH7) as a solid content of 20 parts by weight,
As the release agent (C), KM-56 used in Example 1 was used in the same amount as in Example 1 to obtain an adhesive composition of the present invention. Incidentally, the viscosity was 1000 mPa · s. This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００１９】［実施例４］攪拌機付き容器に、実施例１
で用いた（Ａ）粘着性付与樹脂の水性エマルジョンとし
て、スーパーエステルＥ−７２０、（Ｂ）水性樹脂エマ
ルジョンとして、ＯＭ４２００（クラレ（株）製、エチ
レン−酢酸ビニル共重合体エマルジョン、ガラス転移温
度（Ｔｇ）−２℃、固形分５５％、粘度４０００ｍＰａ
・ｓ、ＰＨ５）を固形分として４０重量部、（Ｃ）離型
剤として、実施例１で用いた、ＫＭ−５６を固形分とし
て４０重量部を順次攪拌しながら混合し、本発明の接着
剤組成物を得た。因みに粘度は２５００ｍＰａ・ｓであ
った。本接着剤を実施例１に準じ、接着加工し本発明の
目的とする物性を確認し、結果を表１［表１］に示し
た。[Embodiment 4] In a container equipped with a stirrer,
As the aqueous emulsion of the tackifying resin (A) used in (1), super ester E-720, as the aqueous resin emulsion of (B), OM4200 (manufactured by Kuraray Co., Ltd., ethylene-vinyl acetate copolymer emulsion, glass transition temperature ( Tg) -2 ° C, solid content 55%, viscosity 4000 mPas
S, PH5) as solid content, 40 parts by weight of (C) mold release agent, KM-56 used in Example 1 and 40 parts by weight as solid content are mixed under sequential stirring to obtain the adhesive of the present invention. An agent composition was obtained. Incidentally, the viscosity was 2500 mPa · s. This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００２０】［実施例５］攪拌機付き容器に、実施例１
で用いた（Ａ）粘着性付与樹脂の水性エマルジョンとし
て、スーパーエステルＥ−７２０、（Ｂ）水性樹脂エマ
ルジョンとして、ストラクトボンド５０２８を同量用
い、（Ｃ）離型剤として、ケミパールＷ４００（三井化
学（株）製、ポリエチレンワックスエマルジョン、固形
分４０％、融点１００℃、粘度１００ｍＰａ・ｓ、ＰＨ
７）を固形分として４０重量部を順次攪拌しながら混合
し、本発明の接着剤組成物を得た。因みに粘度は８００
ｍＰａ・ｓであった。本接着剤を実施例１に準じ、接着
加工し本発明の目的とする物性を確認し、結果を表１
［表１］に示した。[Embodiment 5] In a container equipped with a stirrer,
As the aqueous emulsion of the tackifying resin (A) used in (4), Super Ester E-720, the same amount of struct bond 5028 as the aqueous resin emulsion of (B), and (C) as a release agent, Chemipearl W400 (Mitsui Chemicals). Co., Ltd., polyethylene wax emulsion, solid content 40%, melting point 100 ° C., viscosity 100 mPa · s, PH
40 parts by weight of 7) as a solid content were sequentially stirred and mixed to obtain an adhesive composition of the present invention. By the way, the viscosity is 800
It was mPa · s. According to Example 1, the adhesive was subjected to adhesion processing to confirm the physical properties intended by the present invention, and the results are shown in Table 1.
The results are shown in [Table 1].
【００２１】［実施例６］攪拌機付き容器に、実施例１
で用いた（Ａ）粘着性付与樹脂の水性エマルジョンとし
て、スーパーエステルＥ−７２０の固形分１００重量部
に対して、（Ｂ）水性樹脂エマルジョンとして、ストラ
クトボンド５０２８を固形分とし１０重量部、（Ｃ）離
型剤として、ＫＭ−５６を固形分として５重量部、実施
例１同様に配合し、本発明の接着剤組成物を得た。因み
に粘度は１５００ｍＰａ・ｓであった。本接着剤を実施
例１に準じ、接着加工し本発明の目的とする物性を確認
し、結果を表１［表１］に示した。[Embodiment 6] A container equipped with a stirrer is used in the embodiment 1
As an aqueous emulsion of the tackifying resin (A) used in (1), with respect to 100 parts by weight of the solid content of Super Ester E-720, as a (B) aqueous resin emulsion, 10 parts by weight of struct bond 5028 as a solid content, C) As a release agent, 5 parts by weight of KM-56 as a solid content was mixed in the same manner as in Example 1 to obtain an adhesive composition of the present invention. Incidentally, the viscosity was 1500 mPa · s. This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００２２】［比較例１］実施例１組成から、（Ｂ）水
性樹脂エマルジョンを除き、実施例１同様に調整し、少
量のポリアクリル酸エマルジョンで増粘させ、本発明の
接着剤組成物を得た。因みに粘度は２０００ｍＰａ・ｓ
であった。本接着剤を実施例１に準じ、接着加工し本発
明の目的とする物性を確認し、結果を表１［表１］に示
した。[Comparative Example 1] (B) Aqueous resin emulsion was removed from the composition of Example 1, the same preparation as in Example 1 was carried out, and the viscosity was increased with a small amount of polyacrylic acid emulsion to obtain the adhesive composition of the present invention. Obtained. By the way, the viscosity is 2000mPa ・ s
Met. This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００２３】［比較例２］実施例１組成から、（Ｃ）離
型剤を除き、実施例１同様に調整し、少量のポリアクリ
ル酸エマルジョンで増粘させ、本発明の接着剤組成物を
得た。因みに粘度は２０００ｍＰａ・ｓであった。本接
着剤を実施例１に準じ、接着加工し本発明の目的とする
物性を確認し、結果を表１［表１］に示した。Comparative Example 2 The adhesive composition of the present invention was prepared in the same manner as in Example 1 except that the release agent (C) was removed from the composition of Example 1 and thickened with a small amount of polyacrylic acid emulsion. Obtained. Incidentally, the viscosity was 2000 mPa · s. This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００２４】［比較例３］実施例１組成から、（Ａ）粘
着性付与樹脂の水性エマルジョン除き、実施例１で用い
た（Ｂ）水性樹脂エマルジョンの固形分１００重量部に
対し、Ｃ）離型剤として、ＫＭ−５６を固形分として２
０重量部、実施例１同様に配合し、本発明の接着剤組成
物を得た。因みに粘度は２０００ｍＰａ・ｓであった。
本接着剤を実施例１に準じ、接着加工し本発明の目的と
する物性を確認し、結果を表１［表１］に示した。COMPARATIVE EXAMPLE 3 From the composition of Example 1, the aqueous emulsion of the tackifying resin (A) was removed, and the solid content of 100% by weight of the aqueous resin emulsion (B) used in Example 1 was separated from C). As a mold agent, KM-56 as a solid content of 2
0 parts by weight was compounded in the same manner as in Example 1 to obtain the adhesive composition of the present invention. Incidentally, the viscosity was 2000 mPa · s.
This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００２５】［比較例４］攪拌機付き容器に、実施例１
で用いた、（Ａ）粘着性付与樹脂の水性エマルジョン
を、スーパーエステルＥ−７３０−５５（荒川化学工業
（株）製、ロジンペンタエリスリトールエステル、軟化
点１５５℃、固形分５０％、粘度１００ｍＰａ・ｓ、Ｐ
Ｈ７）に代えた以外は、実施例１に準じて（Ｂ）水性樹
脂エマルジョンとして、ストラクトボンド５０２８、
（Ｃ）離型剤としてＫＭ−５６を同量配合し、本発明の
接着剤組成物を得た。因みに粘度は１０００ｍＰａ・ｓ
であった。本接着剤を実施例１に準じ、接着加工し本発
明の目的とする物性を確認し、結果を表１［表１］に示
した。[Comparative Example 4] A container equipped with a stirrer was used in Example 1.
The aqueous emulsion of the tackifying resin (A) used in Example 1 was used as Super Ester E-730-55 (Arakawa Chemical Industry Co., Ltd., rosin pentaerythritol ester, softening point 155 ° C., solid content 50%, viscosity 100 mPa · s, P
HB) was replaced by the same procedure as in Example 1 except that (B) the aqueous resin emulsion was struct bond 5028,
(C) KM-56 was mixed in the same amount as a release agent to obtain an adhesive composition of the present invention. By the way, the viscosity is 1000 mPa · s
Met. This adhesive was subjected to adhesion processing according to Example 1 to confirm the physical properties intended by the present invention, and the results are shown in Table 1 [Table 1].
【００２６】[0026]
【表１】 表１の物性確認試験方法[Table 1] Physical property confirmation test method in Table 1
【００２７】粘着付与樹脂粉落ちの有無
接着剤が塗布乾燥された、１０×１０ｃｍ面積のフェル
トを手で軽く３回もみ、落下した粉量を目視判定し、全
面積当たりの％で表示（数値０は粉落ちなしを示す）Presence or absence of powder drop of tackifying resin. A felt (10 × 10 cm area) coated with an adhesive and lightly brushed three times by hand to visually judge the amount of powder dropped, and display it in% of the total area (numerical value). 0 indicates that no powder has fallen off)
【００２８】基材共着きの有無（粘着性）
接着剤が塗布乾燥された、１０×１０ｃｍ面積のフェル
トを１０枚積み重ね，１ｋｇの分銅を乗せ、室温に２４
時間放置し、指先で剥がしフェルトの材破状態を、全面
積当たりの％で表示Presence or absence of co-adhesion of base material (adhesiveness) 10 sheets of 10 × 10 cm felt, coated with an adhesive and dried, are piled up, a weight of 1 kg is put thereon, and the room temperature is set to 24.
After leaving it for a while, peel it off with your fingertips, and display the state of the felt breakage as a percentage of the total area.
【００２９】ＰＯ接着性
接着剤が塗布乾燥された、１０×１０ｃｍ面積のフェル
トを１００℃オーブンに１分間入れ再活性させ、ただち
にＰＯシートと貼り合わせ、０．１ｋｇ／ｍ２の加重で
１０秒間圧着し、１時間室温養生後の接着性を指先で剥
がしフェルトの材破状態を、全面積当たりの％で表示
（数値１００はフェルトの全面材破で良好を示す）PO Adhesive An adhesive coated and dried with a 10 × 10 cm area felt was placed in an oven at 100 ° C. for 1 minute for reactivation, and immediately laminated with a PO sheet and pressure-bonded for 10 seconds under a load of 0.1 kg / m 2. Then, the adhesiveness after 1 hour room temperature curing is peeled off with a fingertip, and the state of felt fracture is displayed as a percentage of the total area (numerical value 100 indicates good overall felt fracture).
【００３０】剥離性
接着剤が塗布乾燥された、１０×１０ｃｍ面積のフェル
トを１６８時間室温放置後、１２０℃オーブンで２分間
加熱し、取り出し後、ただちに指先にて剥がし、ＰＯ面
の糊残りを全面積当たりの％で表示（数値０は糊残りな
しを示す）A 10 × 10 cm area felt coated with a peelable adhesive and dried was allowed to stand at room temperature for 168 hours, then heated in an oven at 120 ° C. for 2 minutes, immediately taken out, and immediately peeled off with a fingertip to remove adhesive residue on the PO surface. Displayed as% of total area (numerical value 0 indicates no adhesive residue)
【００３１】[0031]
【発明の効果】本発明のホットメルト接着剤組成物は、
エアースプレーで容易に塗布でき、基材に塗布し乾燥し
た接着剤は粘着性を呈さず、堆積保管が可能であり、加
熱により接着剤は再活性し、難被着体であるＰＯとの接
着に優れる。接着体が不要となり、リサイクル（再利用
若しくは分別廃棄処理）時には、接着体にエネルギー照
射することにより、容易に剥離でき、糊残りも極めて少
ないことから、建築用部材、自動車用部品、事務用品、
生活用品等の分野での利用価値は極めて高い。The hot melt adhesive composition of the present invention comprises:
It can be easily applied by air spray, and the adhesive applied to the substrate and dried does not exhibit tackiness and can be stored in a pile. The adhesive reactivates when heated and adheres to PO, which is difficult to adhere to. Excellent in. Since the adhesive is no longer needed, it can be easily peeled off by irradiating the adhesive with energy during recycling (reuse or separate disposal), and there is very little adhesive residue, so construction materials, automobile parts, office supplies,
The utility value is extremely high in the field of daily necessities.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4J040 BA172 BA202 CA011 CA071 CA081 DA022 DA102 DB051 DC031 DC071 DE031 DF001 DK012 DN032 DN072 EB032 EK002 HC11 JA03 JB01 KA26 LA02 LA11 NA05 NA12 NA19 PA42 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 4J040 BA172 BA202 CA011 CA071 CA081 DA022 DA102 DB051 DC031 DC071 DE031 DF001 DK012 DN032 DN072 EB032 EK002 HC11 JA03 JB01 KA26 LA02 LA11 NA05 NA12 NA19 PA42
Claims (6)
マルジョン、（Ｃ）離型剤を配合してなる易剥離型水性
ホットメルト接着剤組成物。1. An easily peelable aqueous hot melt adhesive composition comprising (A) a tackifying resin, (B) an aqueous resin emulsion and (C) a release agent.
剤が水性ディスパージョンであることを特徴とする請求
項１に記載の易剥離型水性ホットメルト接着剤組成物。2. The easily peelable aqueous hot melt adhesive composition according to claim 1, wherein the tackifying resin (A) and the releasing agent (C) are aqueous dispersions.
０〜１５０℃であることを特徴とする請求項１または２
に記載の易剥離型水性ホットメルト接着剤組成物。3. The softening point of the tackifying resin (A) is 5
It is 0-150 degreeC, The Claim 1 or 2 characterized by the above-mentioned.
The easily peelable water-based hot melt adhesive composition described in 1.
ス転移温度（Ｔｇ）が−３０〜＋５℃の範囲であること
を特徴とする請求項１〜３のいずれかにに記載の易剥離
型水性ホットメルト接着剤組成物。4. The easily peelable type according to any one of claims 1 to 3, wherein the glass transition temperature (Tg) of the aqueous resin emulsion (B) is in the range of -30 to + 5 ° C. Aqueous hot melt adhesive composition.
の範囲であることを特徴とする請求項１〜４のいずれか
にに記載の易剥離型水性ホットメルト接着剤組成物。5. The melting point of the releasing agent (C) is 40 to 150 ° C.
The easily peelable water-based hot-melt adhesive composition according to any one of claims 1 to 4, wherein
部に対して、（Ｂ）水性樹脂エマルジョンが、固形分と
して５〜５０重量部、（Ｃ）離型剤が固形分として５〜
５０重量部を配合してなる請求項１〜５のいずれかに記
載の易剥離型水性ホットメルト接着剤組成物。6. The solid content of (B) the aqueous resin emulsion is 5 to 50 parts by weight, and the solid content of (C) the release agent is 5 parts with respect to 100 parts by weight of the solid content of the tackifying resin (A). ~
The easily peelable water-based hot melt adhesive composition according to any one of claims 1 to 5, which comprises 50 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002091970A JP2003286470A (en) | 2002-03-28 | 2002-03-28 | Aqueous hot-melt adhesive composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002091970A JP2003286470A (en) | 2002-03-28 | 2002-03-28 | Aqueous hot-melt adhesive composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003286470A true JP2003286470A (en) | 2003-10-10 |
Family
ID=29236927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002091970A Pending JP2003286470A (en) | 2002-03-28 | 2002-03-28 | Aqueous hot-melt adhesive composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003286470A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012255084A (en) * | 2011-06-09 | 2012-12-27 | Toyo Adl Corp | Thermally peelable aqueous adhesive |
-
2002
- 2002-03-28 JP JP2002091970A patent/JP2003286470A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012255084A (en) * | 2011-06-09 | 2012-12-27 | Toyo Adl Corp | Thermally peelable aqueous adhesive |
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