JPH08325539A - Hot-melt adhesive composition - Google Patents
Hot-melt adhesive compositionInfo
- Publication number
- JPH08325539A JPH08325539A JP13638595A JP13638595A JPH08325539A JP H08325539 A JPH08325539 A JP H08325539A JP 13638595 A JP13638595 A JP 13638595A JP 13638595 A JP13638595 A JP 13638595A JP H08325539 A JPH08325539 A JP H08325539A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- adhesive composition
- ethylene
- vinyl acetate
- 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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Links
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- Adhesives Or Adhesive Processes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はホットメルト接着剤組成
物に関する。さらに詳しくは、接着能力が大きく難接着
物と呼ばれるポリプロピレンやポリエチレンなどのプラ
スチックを容易に接着することができるホットメルト接
着剤組成物に関する。FIELD OF THE INVENTION This invention relates to hot melt adhesive compositions. More specifically, it relates to a hot-melt adhesive composition which has a large adhesive ability and can easily adhere to plastics such as polypropylene and polyethylene, which are called difficult-to-adhere materials.
【０００２】[0002]
【従来の技術および問題点】従来、ホットメルト接着剤
は、ベースポリマー、粘着付与剤、さらには必要に応じ
てワックス、酸化防止剤、可塑剤、充填剤などを混合し
て用いられている。ベースポリマーとしては、非晶性ポ
リオレフィン、エチレン−酢酸ビニル共重合体（ＥＶ
Ａ）、エチレン−アクリル酸エステル共重合体（ＥＥ
Ａ）、スチレン−ブタジエン−スチレンブロック共重合
体（ＳＢＳ）、スチレン−イソプレン−スチレンブロッ
ク共重合体（ＳＩＳ）、スチレン−エチレン／ブチレン
−スチレンブロック共重合体（ＳＥＢＳ）、スチレン−
エチレン／プロピレン−スチレンブロック共重合体（Ｓ
ＥＰＳ）などの熱可塑性ポリマーが用いられている。非
晶性ポリオレフィンをベースとしたホットメルト接着剤
は、着色、臭いがなく燃焼時の発煙も少なく、紙、木、
プラスチック、石材、石コウ、セメントなどを容易に接
着することができるが、高温での接着力は十分でなかっ
た。一方、ＥＶＡやＥＥＡのようなエチレン共重合体は
紙や木材などとの接着性に優れているため、包装、製
本、木工などの用途に広く使用されている。2. Description of the Related Art Conventionally, hot melt adhesives have been used by mixing a base polymer, a tackifier, and if necessary, a wax, an antioxidant, a plasticizer, a filler and the like. As the base polymer, amorphous polyolefin, ethylene-vinyl acetate copolymer (EV
A), ethylene-acrylic acid ester copolymer (EE
A), styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), styrene-ethylene / butylene-styrene block copolymer (SEBS), styrene-
Ethylene / propylene-styrene block copolymer (S
Thermoplastic polymers such as EPS) have been used. Hot melt adhesives based on amorphous polyolefin have no coloring, no odor, and little smoke emission when burned, and are used for paper, wood,
It can easily bond plastics, stones, stones, cement, etc., but its adhesive strength at high temperatures was not sufficient. On the other hand, ethylene copolymers such as EVA and EEA are widely used for packaging, bookbinding, woodworking and the like because they have excellent adhesiveness to paper and wood.
【０００３】しかし、従来のＥＶＡやＥＥＡベースのホ
ットメルト接着剤は、難接着材料といわれるポリエチレ
ンやポリプロピレンなどの無極性材料への接着力は満足
すべきものでなかった。また、酢酸ビニル含量が多いＥ
ＶＡをベースとしたホットメルト接着剤は常温での接着
力は良好であっても、高温側、低温側で十分な接着力が
なかった。発明者らは、上記従来のホットメルト接着剤
の欠点を解決し、高品質のホットメルト接着剤を得るべ
く鋭意研究した結果、本発明を完成するに至った。すな
わち、本発明は、従来のホットメルト接着剤の持つ欠点
である難接着材料への接着能力、耐熱性、耐寒性、作業
性などを改良することにある。However, conventional EVA and EEA-based hot melt adhesives have not been satisfactory in adhesive strength to non-polar materials such as polyethylene and polypropylene, which are said to be difficult to bond. E with a high vinyl acetate content
Although the hot melt adhesive based on VA had a good adhesive strength at room temperature, it did not have a sufficient adhesive strength on the high temperature side and the low temperature side. The inventors of the present invention have completed the present invention as a result of intensive studies to solve the above-mentioned drawbacks of conventional hot melt adhesives and obtain high quality hot melt adhesives. That is, the present invention is to improve the adhesiveness to poorly adhesive materials, heat resistance, cold resistance, workability, etc., which are the drawbacks of conventional hot melt adhesives.
【０００４】[0004]
【課題を解決するための手段】本発明によれば、（ａ）
酢酸ビニル含量が２５ｗｔ％以下でメルトフローレート
が２以上のエチレン−酢酸ビニル共重合体１００重量部
（ｂ）数平均分子量１，０００〜２０，０００かつ１
９０℃溶融粘度が５０〜１００，０００ｃｐｓでプロピ
レン成分が３０重量％以上の非晶性ポリオレフィン１〜
１５０重量部（ｃ）粘着付与剤５０〜３００重量部およ
び （ｄ）ワックス０〜１００重量部からなることを特
長とするホットメルト接着剤が提供される。According to the present invention, (a)
100 parts by weight of ethylene-vinyl acetate copolymer having a vinyl acetate content of 25 wt% or less and a melt flow rate of 2 or more (b) Number average molecular weight of 1,000 to 20,000 and 1
90 ° C. melt viscosity of 50-100,000 cps, propylene component 30 wt% or more of the amorphous polyolefin 1
There is provided a hot melt adhesive characterized by comprising 150 parts by weight of (c) 50 to 300 parts by weight of a tackifier and (d) 0 to 100 parts by weight of a wax.
【０００５】以下、本発明について、さらに詳しく説明
する。本発明の（ａ）成分のエチレン−酢酸ビニル共重
合体は酢酸ビニル含量が２５ｗｔ％以下、好ましくは２
０以下であり、メルトフローレートが２以上、好ましく
は１０以上である。酢酸ビニル含量が２５重量％以上で
は接着剤組成物が１６０℃の溶融時に分離してくる。本
発明の（ｂ）成分のプロピレン成分を３０重量％以上含
む非晶性ポリオレフィンは、結晶性ポリプロピレン製造
の際に副生するアタクチックポリプロピレンを用いても
よいし、また、原料から所定のプロピレン成分を含有す
るポリプロピレンやプロピレンと他のα−オレフィンと
の共重合体を目的生産して用いることができる。目的生
産する場合、例えば、塩化マグネシウムに担持したチタ
ン担持型触媒とトリエチルアルミニウムを用いて水素の
存在下で重合したものを用いることができる。供給安定
性および品質安定性の観点からは、目的生産された所定
の非晶性ポリオレフィンを使用するのが好ましい。さら
に、上記非晶性ポリオレフィンは、数平均分子量が１，
０００〜２０，０００、好ましくは１，５００〜１５，
０００である。The present invention will be described in more detail below. The ethylene-vinyl acetate copolymer of the component (a) of the present invention has a vinyl acetate content of 25 wt% or less, preferably 2
It is 0 or less, and the melt flow rate is 2 or more, preferably 10 or more. When the vinyl acetate content is 25% by weight or more, the adhesive composition separates when melted at 160 ° C. As the amorphous polyolefin containing 30% by weight or more of the propylene component of the component (b) of the present invention, atactic polypropylene produced as a by-product during the production of crystalline polypropylene may be used, or a predetermined propylene component from the raw material may be used. A polypropylene containing or a copolymer of propylene and another α-olefin can be produced for the purpose and used. In the case of intended production, for example, a titanium-supported catalyst supported on magnesium chloride and triethylaluminum polymerized in the presence of hydrogen can be used. From the viewpoints of supply stability and quality stability, it is preferable to use a predetermined amorphous polyolefin that has been objectively produced. Further, the amorphous polyolefin has a number average molecular weight of 1,
000 to 20,000, preferably 1,500 to 15,
000.
【０００６】具体的には、（ｂ）成分の非晶性ポリオレ
フィンは上記範囲のプロピレン含有量および分子量を有
するポリプロピレン、プロピレン・エチレン共重合体、
プロピレン・ブテン−１共重合体、プロピレン・ブテン
−１およびエチレンの３元共重合体、プロピレンとヘキ
セン−１、オクテン−１または２−メチルペンテン−１
との共重合体などプロピレン成分が主成分である非晶性
ポリオレフィンが挙げられる。これらのうち、プロピレ
ン・エチレン共重合体については、エチレン含有量が０
〜３０重量％で、好ましくは、１〜２０重量％である。
エチレン含有量が３０重量％より大きい場合は、柔らか
くなりすぎ、また、表面粘着性が大きすぎて接着剤とし
て使用するのが難しい。また、プロピレン・ブテン−１
共重合体については、ブテン−１含有量が０〜７０重量
％で、好ましくは５〜４５重量％である。ブテン−１含
有量が５０重量％より大きい場合は、軟化点が低くなり
すぎ、また生産性が低下する。Specifically, the amorphous polyolefin as the component (b) is polypropylene having a propylene content and a molecular weight in the above range, a propylene / ethylene copolymer,
Propylene / butene-1 copolymer, propylene / butene-1 and ethylene terpolymer, propylene and hexene-1, octene-1 or 2-methylpentene-1
An amorphous polyolefin whose main component is a propylene component, such as a copolymer with Of these, the propylene / ethylene copolymer has an ethylene content of 0.
-30% by weight, preferably 1-20% by weight.
When the ethylene content is more than 30% by weight, it becomes too soft and the surface tackiness is too large to be used as an adhesive. Also, propylene butene-1
The butene-1 content of the copolymer is 0 to 70% by weight, preferably 5 to 45% by weight. When the butene-1 content is more than 50% by weight, the softening point becomes too low and the productivity is lowered.
【０００７】さらに、本発明の非晶性ポリオレフィン
は、沸騰ｎ−ヘプタン不溶分、すなわち沸騰ｎ−ヘプタ
ンによるソックスレー抽出不溶分が６０重量％以下、好
ましくは３０重量％以下、さらに好ましくは１５重量％
以下である。さらに、本発明の非晶性ポリオレフィンと
しては、示差熱走査熱量計の昇温測定において結晶融解
熱△Ｈが２５Ｊ／ｇ以下が好ましく、更に好ましいのは
１０Ｊ／ｇ以下である。本発明の非晶性ポリオレフィン
において、沸騰ｎ−ヘプタン不溶分が上記範囲より多か
ったり、結晶融解熱が大きいと接着剤として使用したと
きに、オープンタイムが短すぎたり、塗布後の肉やせ
や、接着強度の経時変化が生じるなどの不都合があり好
ましくない。本発明における非晶性ポリオレフィンとし
ては、例えば、市販されている宇部レキセン社のウベタ
ック（商品名、ＵＢＥＴＡＣ）などを用いることができ
る。Further, the amorphous polyolefin of the present invention has a boiling n-heptane insoluble content, that is, a Soxhlet extraction insoluble content by boiling n-heptane of 60% by weight or less, preferably 30% by weight or less, more preferably 15% by weight.
It is the following. Further, as the amorphous polyolefin of the present invention, the heat of crystal fusion ΔH is preferably 25 J / g or less, more preferably 10 J / g or less in the temperature rise measurement of the differential scanning calorimeter. In the amorphous polyolefin of the present invention, the boiling n-heptane insoluble content is more than the above range, or when used as an adhesive with a large heat of crystal fusion, the open time is too short, the meat is thin after application, It is not preferable because there is a problem that the adhesive strength changes with time. As the amorphous polyolefin in the present invention, for example, commercially available Ubetac (trade name, UBETAC) manufactured by Ube Lexen Co., Ltd. and the like can be used.
【０００８】本発明における（ｃ）成分の粘着付与剤と
しては、テルペン系樹脂、脂肪族系石油樹脂、脂環族系
石油樹脂およびこれらを基本骨格とした共重合体などを
使用することができる。これには、ＤＣＰＤ系、脂肪族
と脂環族の共重合体、脂肪族と芳香族の共重合体、ＤＣ
ＰＤ系と芳香族の共重合体、ＤＣＰＤ系と脂肪族の共重
合体などがある。また水添、未水添のいずれでもよい。
好ましくは（ａ）成分のＥＶＡと（ｂ）成分の非晶性ポ
リオレフィンの両方と相溶性の良好な水添テルペン系樹
脂がよい。本発明における（ｄ）成分のワックスとして
は、パラフィンワックス、マイクロクリスタリンワック
ス、ポリエチレンワックス、ポリプロピレンワックス、
サゾールワックスなどが挙げられる。As the tackifier of the component (c) in the present invention, a terpene resin, an aliphatic petroleum resin, an alicyclic petroleum resin and a copolymer having these as a basic skeleton can be used. . This includes DCPD-based, aliphatic and alicyclic copolymers, aliphatic and aromatic copolymers, DC
Examples include PD-based aromatic copolymers and DCPD-based aliphatic copolymers. It may be hydrogenated or unhydrogenated.
A hydrogenated terpene-based resin having good compatibility with both EVA of the component (a) and the amorphous polyolefin of the component (b) is preferable. Examples of the component (d) wax in the present invention include paraffin wax, microcrystalline wax, polyethylene wax, polypropylene wax,
Examples include sazol wax.
【０００９】本発明の接着剤組成物は上記ＥＶＡと非晶
性ポリオレフィンと粘着付与剤を配合して得ることがで
きる。配合比はＥＶＡが１００重量部に対して、非晶性
ポリオレフィンが１〜１５０重量部、粘着付与剤が５０
〜３００重量部、およびワックスが０〜１００重量部で
ある。好ましくは非晶性ポリオレフィンが５〜１００重
量部であり、５重量部より少ないと難接着物と呼ばれる
ポリプロピレンやポリエチレンなどのプラスチックへの
接着力が向上せず、１００重量部を越えて入れると耐熱
性が劣る。また、粘着付与剤は、５０〜３００重量部好
ましくは１００〜３００重量部であり、５０重量部より
少ないとＥＶＡと非晶性ポリオレフィンとの相溶性が悪
く、溶解分離する。また３００重量部より多くなると接
着力が低下する。本発明のホットメルト接着剤組成物に
ワックスを配合する場合、１００重量部以下とするのが
好ましい。ワックスの配合量が多すぎると接着力の低下
が大きい。The adhesive composition of the present invention can be obtained by blending the above EVA, an amorphous polyolefin and a tackifier. The compounding ratio is as follows: EVA is 100 parts by weight, amorphous polyolefin is 1 to 150 parts by weight, and tackifier is 50 parts by weight.
-300 parts by weight, and 0-100 parts by weight of wax. The amount of the amorphous polyolefin is preferably 5 to 100 parts by weight, and if the amount is less than 5 parts by weight, the adhesive strength to plastics such as polypropylene and polyethylene, which are called difficult-to-adhere substances, will not improve, and if the amount exceeds 100 parts by weight, heat resistance will increase Inferior in nature. Further, the tackifier is 50 to 300 parts by weight, preferably 100 to 300 parts by weight, and if it is less than 50 parts by weight, the compatibility between EVA and the amorphous polyolefin is poor and they are dissolved and separated. If it is more than 300 parts by weight, the adhesive strength will be reduced. When wax is added to the hot melt adhesive composition of the present invention, it is preferably 100 parts by weight or less. If the wax content is too large, the adhesive strength will be significantly reduced.
【００１０】本発明のホットメルト組成物には前記のＥ
ＶＡ、非晶性ポリオレフィン、粘着付与剤、ワックスの
他に必要に応じて、種々の改質材、添加剤を配合しても
よい。例えば、液状ポリブテン、パラフィンオイルなど
の可塑剤、酸化防止剤、紫外線吸収剤、炭酸カルシウ
ム、炭酸バリウム、タルクなどの充填剤である。これら
の配合量は用途に合せ適宜使用される。The hot melt composition of the present invention contains the above-mentioned E
In addition to VA, amorphous polyolefin, tackifier, and wax, various modifiers and additives may be blended, if necessary. For example, liquid polybutene, a plasticizer such as paraffin oil, an antioxidant, an ultraviolet absorber, a filler such as calcium carbonate, barium carbonate, and talc. These compounding amounts are appropriately used according to the application.
【００１１】本発明において、ＥＶＡ、非晶性ポリオレ
フィン、粘着付与剤などの配合にはこれらの成分を容器
内で混合加熱してもよいし、通常ポリマーの混合に用い
られる、ロール、バンバリーミキサー、ニーダー、押出
機などを用いることもできる。本発明の接着剤は加熱に
より溶融するので、ブロック状、ペレット状、紐状、フ
ィルム状などの各種形状に成形して用いることができ
る。本発明の接着剤の塗布は、通常のホットメルト接着
剤用アプリケーターを用いて被着体に溶融して被着体同
士を接着する方法、あるいは被着体の一方にあらかじめ
接着剤を施した後、他方の被着体を重ね合わせて加熱す
る方法、フィルム状の接着剤をラミネーターで貼り合わ
せる方法などが用いられる。In the present invention, the components such as EVA, amorphous polyolefin, and tackifier may be mixed and heated in a container, or a roll, a Banbury mixer, which is usually used for mixing polymers, A kneader, an extruder or the like can also be used. Since the adhesive of the present invention is melted by heating, it can be formed into various shapes such as a block shape, a pellet shape, a string shape, and a film shape before use. The application of the adhesive of the present invention may be carried out by melting the adherends using an ordinary hot-melt adhesive applicator to bond the adherends together, or after applying the adhesive to one of the adherends in advance. A method in which the other adherend is overlaid and heated, a method in which a film-like adhesive is laminated with a laminator, and the like are used.
【００１２】本発明の接着剤を使用し得る被着体として
は、紙、布、木材をはじめ、ポリエチレン、ポリプロピ
レン、ポリ塩化ビニルなどの合成樹脂類、また、石コ
ウ、セメント、石材、金属、ガラスなどが挙げられる。
また、紙および／または板紙をホットメルト接着剤で貼
り合わせたサンドイッチ状の構造をした防湿・防水紙、
および紙および／または板紙の片面にホットメルト接着
剤を塗布した防湿・防水紙にも用いることができる。さ
らに、被着体として上記の材質の同種または異種の物体
の隙間を埋めるための用途、すなわちシーリング剤とし
ても用いることができる。As the adherend to which the adhesive of the present invention can be applied, paper, cloth, wood, synthetic resins such as polyethylene, polypropylene, polyvinyl chloride, etc., stone gypsum, cement, stone material, metal, Examples include glass.
In addition, moisture-proof and waterproof paper with a sandwich-like structure in which paper and / or paperboard is attached with a hot melt adhesive,
It can also be used for moisture-proof / waterproof paper in which a hot-melt adhesive is applied to one side of paper and / or paperboard. Furthermore, it can be used as an adherend for filling a gap between the same or different kinds of objects made of the above materials, that is, as a sealing agent.
【００１３】[0013]
【実施例】以下、本発明を実施例により詳細に説明す
る。但し、本発明は下記の実施例により制限されるもの
ではない。なお、下記の実施例および比較例において各
物性は下記の方法により測定した。EXAMPLES The present invention will be described in detail below with reference to examples. However, the present invention is not limited to the following examples. In the following examples and comparative examples, each physical property was measured by the following methods.
【００１４】（１）粘度（ｃｐｓ） ＪＩＳ Ｋ７１１７に準拠し、１９０℃で測定(1) Viscosity (cps) Measured at 190 ° C. according to JIS K7117
【００１５】（２）環球式軟化点（℃） ＪＩＳ Ｋ２２０７に準拠。(2) Ring and ball softening point (° C.) According to JIS K2207.
【００１６】（３）接着強度（ｋｇ／２５ｍｍ） 得られた接着剤組成物を、１４０℃に加熱溶融し、厚さ
６０μｍの未処理のポリプロピレンフィルム（ＯＰＰ）
上にバーコーターで１００μｍで塗布した後、別のポリ
プロピレンフィルム（ＯＰＰ）を重ね１２０℃、３ｋｇ
ｆ／ｃｍ2 の圧力で１０秒間のプレスを行ないヒートシ
ールした。この貼り合わせフィルムを２５ｍｍ巾の短冊
に切り、剥離速度２００ｍｍ／ｍｉｎで０℃、２３℃、
４０℃、６０℃の各温度でＴピール強度を測定した。(3) Adhesive strength (kg / 25 mm) The obtained adhesive composition was heated and melted at 140 ° C. to obtain an untreated polypropylene film (OPP) having a thickness of 60 μm.
After coating with a bar coater at 100 μm, another polypropylene film (OPP) is overlaid at 120 ° C, 3 kg
Pressing was performed for 10 seconds at a pressure of f / cm 2 for heat sealing. This laminated film is cut into 25 mm wide strips and peeled at a rate of 200 mm / min at 0 ° C, 23 ° C,
The T-peel strength was measured at each temperature of 40 ° C and 60 ° C.
【００１７】（４）耐熱接着性 日本接着剤工業会規格（ＪＡＩ７−１９９１）に定めら
れた方法のＢ法の剥離クリープ荷重３００ｇｆで５０℃
耐熱接着性を測定した。(4) Heat Resistant Adhesion Property Peeling creep load of Method B of the method prescribed in Japan Adhesive Industry Association Standard (JAI7-1991) at 300 gf and 50 ° C.
The heat resistant adhesiveness was measured.
【００１８】（５）溶融分離 ２００ｍｌのビーカーに得られた接着剤組成物を１００
ｇ入れ、１６０℃のオーブン中で２４時間放置し、目視
観察した。(5) Melt Separation 100 ml of the obtained adhesive composition was placed in a 200 ml beaker.
Then, the mixture was placed in an oven at 160 ° C. for 24 hours and visually observed.
【００１９】（６）オープンタイム、セットタイム 日本接着剤工業会規格（ＪＡＩ７−１９９１）に準拠。(6) Open time, set time Compliant with Japan Adhesive Industry Association Standard (JAI7-1991).
【００２０】実施例１ ＥＶＡとして酢酸ビニル含量が１９重量％、メルトフロ
ーレート（ＪＩＳ Ｋ６７３０に準拠し、試験温度１９
０℃、試験荷重２．１６ｋｇｆで測定）が４００のＥＶ
４１０（三井・デュポンポリケミカル社製）１００重量
部、非晶性ポリオレフィンとして宇部レキセン社製のプ
ロピレン／エチレンの重量比が８５／１５で数平均分子
量が６，５００、１９０℃粘度が３，５００ｃｐｓであ
る商品名ウベタック ＵＴ２５３５（結晶融解熱△Ｈ＝
７Ｊ／ｇ）を１０重量部、粘着付与剤として水添テルペ
ン樹脂クリアロンＰ−１０５（ヤスハラケミカル製）１
１０重量部を１８０℃で加熱溶融混合し、ホットメルト
接着剤組成物を作成した。次いで得られた接着剤の各物
性を測定した。測定結果を表１に示した。Example 1 EVA having a vinyl acetate content of 19% by weight and a melt flow rate (according to JIS K6730, a test temperature of 19).
EV of 400 at 0 ° C and test load of 2.16 kgf)
410 (manufactured by Mitsui DuPont Polychemical Co., Ltd.), an amorphous polyolefin manufactured by Ube Lexen Co., Ltd. with a propylene / ethylene weight ratio of 85/15, a number average molecular weight of 6,500, and a 190 ° C. viscosity of 3,500 cps. Trade name is Ubetac UT2535 (heat of crystal fusion △ H =
7 J / g) and 10 parts by weight of hydrogenated terpene resin Clearon P-105 (manufactured by Yasuhara Chemical) as a tackifier 1
10 parts by weight were heated and melt-mixed at 180 ° C. to prepare a hot melt adhesive composition. Then, each physical property of the obtained adhesive was measured. The measurement results are shown in Table 1.
【００２１】実施例２ 非晶性ポリオレフィンとして宇部レキセン社製のプロピ
レン／エチレンの重量比が８５／１５で数平均分子量が
６，５００、１９０℃粘度が３，５００ｃｐｓである商
品名ウベタック ＵＴ２５３５（結晶融解熱△Ｈ＝１０
Ｊ／ｇ）を２５重量部用いた以外は実施例１と同様にし
てホットメルト接着剤組成物の作成および測定を行なっ
た。Example 2 An amorphous polyolefin manufactured by Ube Lexen Co., Ltd. having a propylene / ethylene weight ratio of 85/15, a number average molecular weight of 6,500, and a viscosity of 190 ° C. of 3,500 cps, Ubetac UT2535 (crystal) Heat of fusion △ H = 10
A hot melt adhesive composition was prepared and measured in the same manner as in Example 1 except that 25 parts by weight of J / g) was used.
【００２２】実施例３ 非晶性ポリオレフィンとして宇部レキセン社製のプロピ
レン／エチレンの重量比が９５／５で数平均分子量が
６，５００、１９０℃粘度が３，０００ｃｐｓである商
品名ウベタック ＵＴ２３３０を２５重量部用いた以外
は実施例１と同様にしてホットメルト接着剤の作成およ
び測定を行なった。Example 3 As an amorphous polyolefin, 25 ubetac UT2330 manufactured by Ube Lexen Co., Ltd. having a propylene / ethylene weight ratio of 95/5, a number average molecular weight of 6,500 and a 190 ° C. viscosity of 3,000 cps was used. A hot melt adhesive was prepared and measured in the same manner as in Example 1 except that the parts by weight were used.
【００２３】実施例４ ＥＶＡとして酢酸ビニル含量が１９重量％、メルトフロ
ーレートが４００のＥＶ４１０（三井・デュポンポリケ
ミカル社製）１００重量部、非晶性ポリオレフィンとし
て宇部レキセン社製のプロピレン／エチレンの重量比が
８５／１５で数平均分子量が６，５００、１９０℃粘度
が３，５００ｃｐｓである商品名ウベタック ＵＴ２５
３５を５０重量部、粘着付与剤として 水添テルペン樹
脂 クリアロンＰ−１０５（ヤスハラケミカル製）１５
０重量部、パラフィンワックスＨＮ０９（日本精蝋製）
１５重量部を用いて、ホットメルト接着剤組成物を作成
し、得られた接着剤の各物性を測定した。Example 4 100 parts by weight of EV410 (manufactured by Mitsui DuPont Polychemical Co., Ltd.) having a vinyl acetate content of 19% by weight and a melt flow rate of 400 as EVA, and propylene / ethylene of Ube Lexen Co., Ltd. as an amorphous polyolefin. Ubetac UT25 under the trade name of 85/15 in weight ratio, number average molecular weight of 6,500 and 190 ° C. viscosity of 3,500 cps
50 parts by weight of 35, hydrogenated terpene resin Clearon P-105 (manufactured by Yasuhara Chemical) as a tackifier 15
0 parts by weight, paraffin wax HN09 (made by Nippon Seiro Co., Ltd.)
A hot melt adhesive composition was prepared using 15 parts by weight, and each physical property of the obtained adhesive was measured.
【００２４】実施例５ ＥＶＡとして酢酸ビニル含量が１９重量％、メルトフロ
ーレートが１５０のＥＶ４２０（三井・デュポンポリケ
ミカル社製）１００重量部を用いた以外は実施例４と同
様にしてホットメルト接着剤組成物の作成および測定を
行なった。Example 5 Hot melt bonding was carried out in the same manner as in Example 4 except that 100 parts by weight of EV420 (manufactured by Mitsui DuPont Polychemical Co., Ltd.) having a vinyl acetate content of 19% by weight and a melt flow rate of 150 was used as EVA. The composition of the agent was prepared and measured.
【００２５】実施例６ ワックスとしてサゾールワックスＨ１（サゾール社製）
を２０重量部用いた以外は実施例４と同様にしてホット
メルト接着剤組成物の作成および測定を行なった。Example 6 Sazol wax H1 (manufactured by Sazol) as a wax
A hot melt adhesive composition was prepared and measured in the same manner as in Example 4 except that 20 parts by weight of was used.
【００２６】比較例１ ＥＶＡとして酢酸ビニル含量が１９重量％、メルトフロ
ーレートが４００のＥＶ４１０（三井・デュポンポリケ
ミカル社製）１００重量部、粘着付与剤として水添テル
ペン樹脂 クリアロンＰ−１０５（ヤスハラケミカル
製）１００重量部を用いて、ホットメルト接着剤組成物
を作成し、得られた接着剤の各物性を測定した。Comparative Example 1 100 parts by weight of EV410 (manufactured by Mitsui DuPont Polychemical Co., Ltd.) having a vinyl acetate content of 19% by weight and a melt flow rate of 400 as EVA, hydrogenated terpene resin CLEARON P-105 (Yasuhara Chemical) as a tackifier. A hot-melt adhesive composition was prepared by using 100 parts by weight of each product and each physical property of the obtained adhesive was measured.
【００２７】比較例２ ＥＶＡとして酢酸ビニル含量が２８重量％、メルトフロ
ーレートが４００のＥＶ２１０（三井・デュポンポリケ
ミカル社製）１００重量部を用いた以外は実施例４と同
様にしてホットメルト接着剤組成物の作成および測定を
行なった。Comparative Example 2 Hot melt bonding was carried out in the same manner as in Example 4 except that 100 parts by weight of EV210 (manufactured by Mitsui DuPont Polychemical Co., Ltd.) having a vinyl acetate content of 28% by weight and a melt flow rate of 400 was used as EVA. The composition of the agent was prepared and measured.
【００２８】比較例３ ＥＶＡとして酢酸ビニル含量が２８重量％、メルトフロ
ーレートが４００のＥＶ２１０（三井・デュポンポリケ
ミカル社製）１００重量部、粘着付与剤として水添ロジ
ンエステル エステルガムＨ（荒川化学社製）１００重
量部、サゾールワックス ５０重量部を用いて、ホット
メルト接着剤組成物を作成し、得られた接着剤の各物性
を測定した。Comparative Example 3 100 parts by weight of EV210 (manufactured by Mitsui DuPont Polychemical Co., Ltd.) having a vinyl acetate content of 28% by weight and a melt flow rate of 400 as EVA, hydrogenated rosin ester ester gum H (Arakawa Chemical Co., Ltd.) as a tackifier. A hot melt adhesive composition was prepared by using 100 parts by weight of the product) and 50 parts by weight of Sazol wax, and each physical property of the obtained adhesive was measured.
【００２９】[0029]
【表１】 [Table 1]
【００３０】上記実施例および比較例より、本発明の接
着剤組成物は溶融分離がなく、ポリプロピレンフィルム
への接着力が高いことがわかる。From the above Examples and Comparative Examples, it can be seen that the adhesive composition of the present invention has no melt separation and has a high adhesive force to a polypropylene film.
【００３１】[0031]
【発明の効果】本発明のエチレン−酢酸ビニル共重合
体、非晶性ポリオレフィンおよび粘着付与剤からなる接
着剤組成物は、非晶性ポリオレフィンを含まない従来の
ＥＶＡ系接着剤に比べポリプロピレンやポリエチレンな
どのプラスチックを容易に接着し、その強度はポリプロ
ピレンフィルムを被着体とした時、常温で３ｋｇｆ／２
５ｍｍ以上あり、かつ４０℃でも１．５ｋｇ／２５ｍｍ
ある。The adhesive composition comprising the ethylene-vinyl acetate copolymer of the present invention, the amorphous polyolefin and the tackifier has a polypropylene or polyethylene composition as compared with the conventional EVA-based adhesive containing no amorphous polyolefin. Easily adheres plastics such as, and its strength is 3kgf / 2 at room temperature when polypropylene film is used as an adherend.
5 mm or more and 1.5 kg / 25 mm even at 40 ° C
is there.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 多賀 健文 大阪府堺市築港新町３−１ 宇部レキセン 株式会社内 (72)発明者 木内 政行 大阪府枚方市中宮北町３番10号 宇部興産 株式会社枚方研究所内 (72)発明者 小沢 秀生 大阪府枚方市中宮北町３番10号 宇部興産 株式会社枚方研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenbun Taga 3-1 Uchi Lexen Co., Ltd. 3-1 Chikko Shinmachi, Sakai City, Osaka Prefecture (72) Masayuki Kiuchi 3-10 Nakamiyakitamachi, Hirakata City, Osaka Prefecture Ube Industries, Ltd. Hirakata Inside the laboratory (72) Hideo Ozawa 3-10 Nakamiyakitamachi, Hirakata City, Osaka Prefecture Ube Industries, Ltd. Inside the Hirakata Laboratory
Claims (3)
メルトフローレートが２以上のエチレン−酢酸ビニル共
重合体、１００重量部 （ｂ）数平均分子量１，０００〜２０，０００かつ１９
０℃溶融粘度が５０〜１００，０００ｃｐｓでプロピレ
ン成分が、３０重量％以上の非晶性ポリオレフィン１〜
１５０重量部 （ｃ）粘着付与剤 ５０〜３００重量部 （ｄ）ワックス ０〜１００重量部 からなるホットメルト接着剤組成物。1. A vinyl acetate content of 25 wt% or less,
Ethylene-vinyl acetate copolymer having a melt flow rate of 2 or more, 100 parts by weight (b) Number average molecular weight of 1,000 to 20,000 and 19
Amorphous polyolefin having a 0 ° C. melt viscosity of 50 to 100,000 cps and a propylene content of 30% by weight or more
150 parts by weight (c) Tackifier 50-300 parts by weight (d) Wax 0-100 parts by weight Hot melt adhesive composition.
を３０〜１００重量％、エチレンを０〜３０重量％含有
するプロピレン・エチレン共重合体またはブテン−１を
１０〜７０重量％含有するプロピレン・ブテン−１共重
合体およびこれらの配合物である請求項１記載のホット
メルト接着剤組成物。2. A propylene / ethylene copolymer containing 30 to 100% by weight of propylene and 0 to 30% by weight of ethylene, or a propylene / butene containing 10 to 70% by weight of butene-1. The hot melt adhesive composition according to claim 1, which is a 1-copolymer or a blend thereof.
系石油樹脂、脂環族系石油樹脂およびこれらを基本骨格
とした共重合体より選ばれた少なくとも１種類の粘着付
与剤である請求項１、２記載のホットメルト接着剤組成
物。3. The tackifier is at least one tackifier selected from a terpene resin, an aliphatic petroleum resin, an alicyclic petroleum resin and a copolymer having these as a basic skeleton. The hot melt adhesive composition according to 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13638595A JP3775756B2 (en) | 1995-06-02 | 1995-06-02 | Hot melt adhesive composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13638595A JP3775756B2 (en) | 1995-06-02 | 1995-06-02 | Hot melt adhesive composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08325539A true JPH08325539A (en) | 1996-12-10 |
| JP3775756B2 JP3775756B2 (en) | 2006-05-17 |
Family
ID=15173924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13638595A Expired - Fee Related JP3775756B2 (en) | 1995-06-02 | 1995-06-02 | Hot melt adhesive composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3775756B2 (en) |
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| WO2012051745A1 (en) * | 2010-10-20 | 2012-04-26 | Tang Yongqiang | A method of extracting bioactive substances by breaking wall of chlorella pyrenoidosa |
| WO2012099107A1 (en) | 2011-01-18 | 2012-07-26 | 三井化学株式会社 | Adhesive resin composition and hot-melt adhesive obtained therefrom |
| WO2014038671A1 (en) * | 2012-09-10 | 2014-03-13 | 日立化成ポリマー株式会社 | Hot-melt resin composition for corrugated cardboard |
| US9000079B2 (en) | 2010-08-26 | 2015-04-07 | Henkel IP & Holding GmbH | Low application tempearature amorphous poly-α-olefin adhesive |
| JP2016514190A (en) * | 2013-03-12 | 2016-05-19 | ヘンケル アイピー アンド ホールディング ゲゼルシャフト ミット ベシュレンクテル ハフツング | Adhesive composition having wide use temperature range and use thereof |
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1995
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|---|---|---|---|---|
| US9000079B2 (en) | 2010-08-26 | 2015-04-07 | Henkel IP & Holding GmbH | Low application tempearature amorphous poly-α-olefin adhesive |
| US9546304B2 (en) | 2010-08-26 | 2017-01-17 | Henkel IP & Holding GmbH | Low application temperature amorphous poly-a-olefin adhesive |
| US9193891B2 (en) | 2010-08-26 | 2015-11-24 | Henkel IP & Holding GmbH | Low application temperature amorphous poly-α-olefin adhesive |
| WO2012051745A1 (en) * | 2010-10-20 | 2012-04-26 | Tang Yongqiang | A method of extracting bioactive substances by breaking wall of chlorella pyrenoidosa |
| EP2666837A4 (en) * | 2011-01-18 | 2015-05-06 | Mitsui Chemicals Inc | Adhesive resin composition and hot-melt adhesive obtained therefrom |
| US8877856B2 (en) | 2011-01-18 | 2014-11-04 | Mitsui Chemicals, Inc. | Adhesive resin composition and hot melt adhesive obtained therefrom |
| JPWO2012099107A1 (en) * | 2011-01-18 | 2014-06-30 | 三井化学株式会社 | Adhesive resin composition and hot melt adhesive obtained therefrom |
| JP5705241B2 (en) * | 2011-01-18 | 2015-04-22 | 三井化学株式会社 | Adhesive resin composition and hot melt adhesive obtained therefrom |
| WO2012099107A1 (en) | 2011-01-18 | 2012-07-26 | 三井化学株式会社 | Adhesive resin composition and hot-melt adhesive obtained therefrom |
| JP2014051631A (en) * | 2012-09-10 | 2014-03-20 | Hitachi Kasei Polymer Co Ltd | Hot melt resin composition for cardboard |
| WO2014038671A1 (en) * | 2012-09-10 | 2014-03-13 | 日立化成ポリマー株式会社 | Hot-melt resin composition for corrugated cardboard |
| JP2016514190A (en) * | 2013-03-12 | 2016-05-19 | ヘンケル アイピー アンド ホールディング ゲゼルシャフト ミット ベシュレンクテル ハフツング | Adhesive composition having wide use temperature range and use thereof |
| US10494551B2 (en) | 2013-03-12 | 2019-12-03 | Henkel IP & Holding GmbH | Adhesive compostions with wide service temperature window and use thereof |
| JP2018065327A (en) * | 2016-10-21 | 2018-04-26 | 大倉工業株式会社 | Polyolefin-based film excellent in uniform expandability and restorability |
| US11660844B2 (en) | 2017-09-27 | 2023-05-30 | Dupont Teijin Films U.S. Limited Partnership | Composite polymer films |
| CN110240883A (en) * | 2019-05-09 | 2019-09-17 | 昆山太田新材料有限公司 | Domestic air filter filter paper hot melt adhesive and preparation method thereof |
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| JP3775756B2 (en) | 2006-05-17 |
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