JP2757113B2 - Adhesive for paper tube - Google Patents
Adhesive for paper tubeInfo
- Publication number
- JP2757113B2 JP2757113B2 JP31403593A JP31403593A JP2757113B2 JP 2757113 B2 JP2757113 B2 JP 2757113B2 JP 31403593 A JP31403593 A JP 31403593A JP 31403593 A JP31403593 A JP 31403593A JP 2757113 B2 JP2757113 B2 JP 2757113B2
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- weight
- vinyl acetate
- adhesive
- emulsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、金属の芯棒に厚紙を接
着しながら巻き付けて紙管を製造する際に用いられる紙
管用接着剤に関し、さらに詳しくは、アクリル酸を含む
ポリビニルアルコールの存在下に、酢酸ビニルおよびエ
チレンを乳化重合して得られるエチレン−酢酸ビニル共
重合樹脂エマルジョンを主成分とする紙管用接着剤に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive for a paper tube used for manufacturing a paper tube by winding a cardboard while bonding a cardboard to a metal core rod, and more particularly, to an adhesive for polyvinyl alcohol containing acrylic acid. The present invention relates to a paper tube adhesive mainly comprising an ethylene-vinyl acetate copolymer resin emulsion obtained by emulsion polymerization of vinyl acetate and ethylene.
【０００２】[0002]
【従来の技術】一般に、紙管用接着剤としては、でん
粉、ポリビニルアルコール、酢酸ビニル樹脂エマルジョ
ンが用いられている。これら紙管用接着剤に要求される
性能として、作業面では高速接着性に優れていること、
一方性能面では偏平耐圧強度、座屈強度、ベンディング
強度等の紙管の耐圧強度が強く求められている。特に、
紙管の耐圧強度は、市場のニーズの高度化にともない、
近年、より高い紙管の耐圧強度が要求されている。2. Description of the Related Art Generally, starch, polyvinyl alcohol, and vinyl acetate resin emulsions are used as paper tube adhesives. The performance required of these paper tube adhesives is that they have excellent high-speed adhesion on the work surface,
On the other hand, in terms of performance, the pressure resistance of the paper tube, such as the flat pressure resistance, the buckling strength, and the bending strength, is strongly required. Especially,
The pressure resistance of paper tubes has been increasing as market needs have increased.
In recent years, higher pressure resistance of paper tubes has been required.
【０００３】従来、紙管の耐圧強度を向上させる方法と
して、次の２つの手段がとられている。その１つは、紙
管原紙の質を上げる方法であり、他の１つは接着剤の皮
膜の硬さ、すなわち皮膜の弾性率を高くする方法であ
る。しかしながら、前者の紙管原紙の質を上げる方法で
は、耐圧強度は上がるものの、コスト高となる欠点を有
する。一方、後者の接着剤皮膜の弾性率を上げる方法で
は、一般にでん粉、ポリビニルアルコール、ニカワ等の
接着剤を用いるか、または、酢酸ビニル樹脂エマルジョ
ンを用いる場合は、可塑剤の使用量を低減する手段がと
られる。しかしながら、でん粉、ポリビニルアルコー
ル、ニカワ等の接着剤を用いる場合は、初期接着性に問
題があり、可塑剤の使用量を低減させた酢酸ビニル樹脂
エマルジョンを用いる場合は、冬期の造膜性に問題があ
り、いずれも満足できるものではなかった。Conventionally, the following two measures have been taken to improve the pressure resistance of a paper tube. One of them is a method of improving the quality of the paper tube base paper, and the other is a method of increasing the hardness of the adhesive film, that is, the elastic modulus of the film. However, in the former method of improving the quality of the paper tube base paper, although the pressure resistance is increased, there is a disadvantage that the cost is increased. On the other hand, in the latter method of increasing the elastic modulus of the adhesive film, generally, an adhesive such as starch, polyvinyl alcohol, glue or the like is used, or when a vinyl acetate resin emulsion is used, means for reducing the amount of the plasticizer used. Is taken. However, when using an adhesive such as starch, polyvinyl alcohol, glue, etc., there is a problem with the initial adhesiveness, and when using a vinyl acetate resin emulsion in which the amount of the plasticizer used is reduced, there is a problem with the film forming property in winter. And none of them were satisfactory.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
紙管用接着剤の欠点を克服し、初期接着力が速く、乾燥
皮膜の弾性率が高く、冬期の造膜性に優れた紙管用接着
剤として有用な共重合樹脂エマルジョン系高耐圧紙管用
接着剤を提供することにある。SUMMARY OF THE INVENTION The present invention overcomes the above-mentioned drawbacks of the conventional adhesive for paper tubes, has a high initial adhesive strength, a high elasticity of a dry film, and has excellent film forming properties in winter. An object of the present invention is to provide a copolymer resin emulsion-based adhesive for high pressure paper tubes which is useful as an adhesive.
【０００５】[0005]
【課題を解決するための手段】本発明者らは上記問題点
を解決すべく鋭意検討を行った結果、アクリル酸を含む
ポリビニルアルコールの存在下に、酢酸ビニルおよびエ
チレンを乳化重合して得られる特定量のエチレンを含有
するエチレン−酢酸ビニル共重合樹脂エマルジョンが前
記課題を解決できることを知り、本発明を完成するに至
った。Means for Solving the Problems The present inventors have made intensive studies to solve the above problems, and as a result, obtained by emulsion polymerization of vinyl acetate and ethylene in the presence of polyvinyl alcohol containing acrylic acid. The inventors have found that an ethylene-vinyl acetate copolymer resin emulsion containing a specific amount of ethylene can solve the above problems, and have completed the present invention.
【０００６】すなわち、本発明は、５〜２０重量％のア
クリル酸を含むポリビニルアルコール１０〜２０重量部
の存在下に、酢酸ビニル８５〜９５重量％およびエチレ
ン５〜１５重量％からなるモノマー８０〜９０重量部を
乳化重合して得られるエチレン−酢酸ビニル共重合樹脂
エマルジョンを主成分とする紙管用接着剤に関する。本
発明は、紙管用接着剤において、ポリマーエマルジョン
の造膜性を保ち、紙管の耐圧強度を向上させるため、従
来の酢酸ビニル樹脂エマルジョンではなく、アクリル酸
を含むポリビニルアルコールの存在下に、酢酸ビニルに
エチレンを少量共重合したエチレン−酢酸ビニル共重合
樹脂エマルジョンを用いたところに特徴がある。That is, the present invention relates to a process for producing a monomer comprising 80 to 95% by weight of vinyl acetate and 5 to 15% by weight of ethylene in the presence of 10 to 20% by weight of polyvinyl alcohol containing 5 to 20% by weight of acrylic acid. The present invention relates to a paper tube adhesive mainly comprising an ethylene-vinyl acetate copolymer resin emulsion obtained by emulsion polymerization of 90 parts by weight. The present invention relates to a paper tube adhesive, which is not a conventional vinyl acetate resin emulsion, but is made of acetic acid in the presence of polyvinyl alcohol containing acrylic acid in order to maintain the film forming property of the polymer emulsion and improve the pressure resistance of the paper tube. It is characterized by using an ethylene-vinyl acetate copolymer resin emulsion obtained by copolymerizing ethylene with a small amount of vinyl.
【０００７】本発明において使用されるエチレン−酢酸
ビニル共重合樹脂エマルジョンは、通常の乳化重合法に
従って製造することができ、エチレンおよび酢酸ビニル
を主な構成単位として製造されるものである。[0007] The ethylene-vinyl acetate copolymer resin emulsion used in the present invention can be produced according to a usual emulsion polymerization method, and is produced using ethylene and vinyl acetate as main constitutional units.
【０００８】[0008]
【作用】エチレンを必須成分として用いるのは、共重合
樹脂のＴｇ（ガラス転移点）を下げ、エマルジョンの造
膜性を上げるためである。従来の可塑剤を添加すること
により、造膜性を上げる方法と比較して、接着剤皮膜の
弾性率を上げることができる。The reason that ethylene is used as an essential component is to lower the Tg (glass transition point) of the copolymer resin and to improve the film forming property of the emulsion. By adding a conventional plasticizer, the modulus of elasticity of the adhesive film can be increased as compared with a method of improving film forming properties.
【０００９】エチレンと酢酸ビニルの使用割合は、エチ
レン５〜１５重量％、好ましくは７〜１０重量％、酢酸
ビニル８５〜９５重量％、好ましくは９０〜９３重量％
である。エチレンの使用割合が５重量％未満では、エマ
ルジョン皮膜の弾性率が上がるものの、エマルジョンの
造膜性に問題があり、１５重量％より多い場合はエマル
ジョン皮膜の弾性率が低下し好ましくない。The proportions of ethylene and vinyl acetate are 5 to 15% by weight, preferably 7 to 10% by weight, 85 to 95% by weight of vinyl acetate, preferably 90 to 93% by weight.
It is. If the use ratio of ethylene is less than 5% by weight, the elasticity of the emulsion film increases, but there is a problem in the film forming property of the emulsion. If it is more than 15% by weight, the elasticity of the emulsion film decreases, which is not preferable.
【００１０】また、エチレン−酢酸ビニル共重合樹脂エ
マルジョンを製造する際に、５〜２０重量％のアクリル
酸を含むポリビニルアルコールを必須成分として用いる
のは、紙への初期の接着性を上げるとともに、エマルジ
ョン皮膜の弾性率を上げるためである。When an ethylene-vinyl acetate copolymer resin emulsion is produced, the use of polyvinyl alcohol containing 5 to 20% by weight of acrylic acid as an essential component increases the initial adhesion to paper, This is for increasing the elastic modulus of the emulsion film.
【００１１】アクリル酸を含むポリビニルアルコールの
使用量は、エチレンと酢酸ビニルからなるモノマーと、
アクリル酸を含むポリビニルアルコールの合計を１００
重量部とした場合、エチレンと酢酸ビニルからなるモノ
マー８０〜９０重量部に対して、５〜２０重量％のアク
リル酸を含むポリビニルアルコール１０〜２０重量部で
あり、さらに好ましくはエチレンと酢酸ビニルからなる
モノマー８５〜９０重量部に対して、５〜２０重量％の
アクリル酸を含むポリビニルアルコール１０〜１５重量
部となるように使用される。５〜２０重量％のアクリル
酸を含むポリビニルアルコールの使用量が１０重量部未
満では、初期接着力が得られず、また２０重量部を超え
る場合は、得られたエマルジョンの粘度が非常に上がる
ため好ましくない。[0011] The amount of the polyvinyl alcohol containing acrylic acid is the amount of the monomer comprising ethylene and vinyl acetate,
Total of polyvinyl alcohol containing acrylic acid is 100
When it is used as a weight part, it is 10 to 20 parts by weight of polyvinyl alcohol containing 5 to 20% by weight of acrylic acid with respect to 80 to 90 parts by weight of a monomer composed of ethylene and vinyl acetate, and more preferably from ethylene and vinyl acetate. It is used so as to be 10 to 15 parts by weight of polyvinyl alcohol containing 5 to 20% by weight of acrylic acid with respect to 85 to 90 parts by weight of the resulting monomer. If the amount of the polyvinyl alcohol containing 5 to 20% by weight of acrylic acid is less than 10 parts by weight, the initial adhesive strength cannot be obtained, and if the amount exceeds 20 parts by weight, the viscosity of the obtained emulsion is extremely increased. Not preferred.
【００１２】また、アクリル酸を用いる理由は、エマル
ジョン皮膜の耐水性を上げるためである。アクリル酸を
含むポリビニルアルコールのアクリル酸の含量が５重量
％未満では、エマルジョンの耐水性は十分満足すべきも
のではなく、また２０重量％より多い場合は増量による
耐水性の改良効果は変らないばかりか、酢酸ビニルの反
応性が悪くなる。本発明においては、反応の最初にアク
リル酸はポリビニルアルコールと同時に水性媒体中に添
加することが必須要件である。その理由は明らかではな
いが、エチレンや酢酸ビニルと同時に、またはエチレン
や酢酸ビニルの後に添加したのでは本発明の効果を発現
するエマルジョンが得られないことを見出した。本発明
において使用されるポリビニルアルコールは、部分ケン
化物でも完全ケン化物でもよく、好ましくは完全ケン化
ポリビニルアルコールの使用が好ましい。The reason for using acrylic acid is to increase the water resistance of the emulsion film. If the content of acrylic acid in the polyvinyl alcohol containing acrylic acid is less than 5% by weight, the water resistance of the emulsion is not sufficiently satisfactory, and if it is more than 20% by weight, the effect of improving the water resistance by increasing the amount does not change. , The reactivity of vinyl acetate deteriorates. In the present invention, it is essential that acrylic acid be added to the aqueous medium simultaneously with the polyvinyl alcohol at the beginning of the reaction. Although the reason is not clear, it has been found that an emulsion exhibiting the effects of the present invention cannot be obtained if added simultaneously with or after ethylene or vinyl acetate. The polyvinyl alcohol used in the present invention may be a partially saponified product or a completely saponified product, and it is preferable to use a completely saponified polyvinyl alcohol.
【００１３】本発明の合成樹脂エマルジョンは通常の乳
化重合法に従って製造することが出来る。重合時には、
通常重合開始剤が用いられ、一般に乳化重合に使用され
るものであれば全て使用することが出来る。代表的なも
のを挙げれば、過酸化水素、過硫酸カリウム、過硫酸ア
ンモニウム等の水溶性無機過酸化物又は過硫酸塩、クメ
ンハイドロパーオキサイド、ベンゾイルパーオキサイド
等の有機過酸化物、アゾビスイソブチロニトリル等のア
ゾ化合物があげられる。重合開始剤の使用量はモノマー
の総重量に対して、０．１〜２０重量％が好ましい。な
お、これらの重合開始剤と金属イオンおよび還元剤との
併用による一般にレドックス重合法として公知の方法に
よってもよいことはもちろんである。The synthetic resin emulsion of the present invention can be produced according to a usual emulsion polymerization method. During polymerization,
Usually, a polymerization initiator is used, and any of those generally used for emulsion polymerization can be used. Representative examples include water-soluble inorganic peroxides or persulfates such as hydrogen peroxide, potassium persulfate and ammonium persulfate, organic peroxides such as cumene hydroperoxide and benzoyl peroxide, and azobisisobutyrate. Examples include azo compounds such as lonitrile. The amount of the polymerization initiator used is preferably 0.1 to 20% by weight based on the total weight of the monomers. In addition, it goes without saying that a method generally known as a redox polymerization method using a combination of these polymerization initiators with a metal ion and a reducing agent may be used.
【００１４】本発明のエチレン−酢酸ビニル共重合樹脂
エマルジョンの工業的生産においては、高圧反応器を用
い、バッチ式、半連続式、連続式の何れかの方法で製造
される。かくして得られるエチレン−酢酸ビニル共重合
樹脂エマルジョンは、共重合樹脂中のエチレン単位と酢
酸ビニル単位の割合はエチレン単位５〜１５重量％、好
ましくは７〜１０重量％と酢酸ビニル単位８５〜９５重
量％、好ましくは９０〜９３重量％からなる。共重合樹
脂中のエチレン含量は、重合過程のエチレン圧に依存
し、エチレン圧が高いほどエチレン含量が多くなる。従
って本発明の様にエマルジョンの造膜性に優れ、乾燥皮
膜の弾性率が高いエチレン−酢酸ビニル共重合樹脂エマ
ルジョンを得るためには、エチレン圧が１０〜１５ｋｇ
／ｃｍ2 が好ましい。また反応温度は１０〜１５０℃で
特に３０〜１００℃が好ましい。本発明のエマルジョン
は、造膜性に優れており、かつ皮膜乾燥の弾性率も優れ
ていることにより、紙管用の接着剤、特に高耐圧紙管用
接着剤として有用である。In the industrial production of the ethylene-vinyl acetate copolymer resin emulsion of the present invention, it is produced by a batch, semi-continuous or continuous method using a high-pressure reactor. In the ethylene-vinyl acetate copolymer resin emulsion thus obtained, the ratio of ethylene units to vinyl acetate units in the copolymer resin is 5 to 15% by weight, preferably 7 to 10% by weight, and 85 to 95% by weight of vinyl acetate units. %, Preferably 90-93% by weight. The ethylene content in the copolymer resin depends on the ethylene pressure in the polymerization process, and the higher the ethylene pressure, the higher the ethylene content. Therefore, in order to obtain an ethylene-vinyl acetate copolymer resin emulsion having an excellent film-forming property of an emulsion and a high elastic modulus of a dry film as in the present invention, an ethylene pressure of 10 to 15 kg is required.
/ Cm 2 is preferred. The reaction temperature is 10 to 150 ° C, and preferably 30 to 100 ° C. The emulsion of the present invention is useful as an adhesive for paper tubes, particularly an adhesive for high pressure paper tubes, because it has excellent film-forming properties and an excellent elasticity of drying the film.
【００１５】[0015]
【実施例】以下、実施例をあげて本発明をさらに詳細に
説明する。なお、実施例および比較例中の部および％
は、特に断りのない限り重量基準である。 （実施例１）ステンレス製オートクレーブに、完全ケン
化ポリビニルアルコール（重合度１７００）５部、アク
リル酸０．５部、酒石酸０．０８部、炭酸ソーダ０．０
３部及び水４９．５部を仕込み、続いてオートクレーブ
内の空気を窒素及びエチレンで充分置換した後、攪拌
下、内温７８℃に昇温すると共にエチレン圧を１３ｋｇ
／ｃｍ2 に昇圧した。これに酢酸ビニル３２．４部を２
時間で滴下した。一方、同時に５％過硫酸アンモニウム
水溶液０．８部を２時間からけ滴下し重合を行った。滴
下終了後、２時間、８０℃に保った。その後冷却を開始
し、３０℃まで冷却後アンモニア水０．５部を添加し
た。得られた合成樹脂エマルジョンの固形分濃度は３
８．１％、粘度は３２００ｃｐ、エチレン含量は７．１
％であった。The present invention will be described in more detail with reference to the following examples. Parts and% in Examples and Comparative Examples
Are by weight unless otherwise specified. (Example 1) In a stainless steel autoclave, 5 parts of completely saponified polyvinyl alcohol (degree of polymerization: 1700), 0.5 part of acrylic acid, 0.08 part of tartaric acid, 0.0 part of sodium carbonate
3 parts and 49.5 parts of water were charged, and then the air in the autoclave was sufficiently replaced with nitrogen and ethylene.
/ Cm 2 . Add 32.4 parts of vinyl acetate to 2
Dropped in time. On the other hand, at the same time, 0.8 parts of a 5% aqueous solution of ammonium persulfate was added dropwise over 2 hours to carry out polymerization. After completion of the dropwise addition, the temperature was maintained at 80 ° C. for 2 hours. Thereafter, cooling was started, and after cooling to 30 ° C., 0.5 part of aqueous ammonia was added. The solid content concentration of the obtained synthetic resin emulsion is 3
8.1%, viscosity 3200 cp, ethylene content 7.1
%Met.
【００１６】（実施例２）実施例１において、完全ケン
化ポリビニルアルコール（重合度１７００）の使用量を
３部に減らした以外は、実施例１と同様の反応を行っ
た。得られた合成樹脂エマルジョンの固形分濃度は３
７．９％、粘度は１３００ｃｐ、エチレン含量は７．０
％であった。 （実施例３）実施例１において、エチレン圧を１５ｋｇ
／ｃｍ2 に変えた以外は、実施例１と同様の反応を行っ
た。得られた合成樹脂エマルジョンの固形分濃度は３
８．３％、粘度は３０００ｃｐ、エチレン含量は９．３
％であった。 （実施例４）実施例１において、アクリル酸の使用量を
０．７５部に増やした以外は実施例１と同様の反応を行
った。得られた合成樹脂エマルジョンの固形分濃度は３
７．８％、粘度は１７００ｃｐ、エチレン含量は７．２
％であった。Example 2 A reaction was carried out in the same manner as in Example 1 except that the amount of completely saponified polyvinyl alcohol (degree of polymerization: 1700) was reduced to 3 parts. The solid content concentration of the obtained synthetic resin emulsion is 3
7.9%, viscosity 1300 cp, ethylene content 7.0
%Met. (Example 3) In Example 1, the ethylene pressure was set to 15 kg.
The reaction was carried out in the same manner as in Example 1 except that the reaction rate was changed to / cm 2 . The solid content concentration of the obtained synthetic resin emulsion is 3
8.3%, viscosity 3000 cp, ethylene content 9.3
%Met. (Example 4) The same reaction as in Example 1 was performed, except that the amount of acrylic acid used was increased to 0.75 parts. The solid content concentration of the obtained synthetic resin emulsion is 3
7.8%, viscosity 1700 cp, ethylene content 7.2
%Met.
【００１７】（比較例１）実施例１において、エチレン
圧を５５ｋｇ／ｃｍ2 に変えた以外は、実施例１と同様
の反応を行った。得られた合成樹脂エマルジョンの固形
分濃度は３８．５％、粘度は３５００ｃｐ、エチレン含
量は１７％であった。 （比較例２）実施例１においてエチレン圧を５ｋｇ／ｃ
ｍ2 に変えた以外は、実施例１と同様の反応を行った。
得られた合成樹脂エマルジョンの固形分濃度は３７．８
％、粘度は２７００ｃｐ、エチレン含量は３．４％であ
った。 （比較例３）実施例１において、アクリル酸０．５部を
酢酸ビニル３２．４部と共に添加した以外は、実施例１
と同様の反応を行った。得られた合成樹脂エマルジョン
の固形分濃度は３８．４％、粘度は３５００ｃｐ、エチ
レン含量は７．３％であった。 （比較例４）実施例１において、アクリル酸を使用しな
かった以外は、実施例１と同様の反応を行った。得られ
た合成樹脂エマルジョンの固形分濃度は３８．５％、粘
度は５６００ｃｐ、エチレン含量は７．３％であった。
以上実施例１，２，３，４および比較例１，２，３，４
の物性、応用性能を表１に示す。Comparative Example 1 The same reaction as in Example 1 was performed, except that the ethylene pressure was changed to 55 kg / cm 2 . The resulting synthetic resin emulsion had a solid content of 38.5%, a viscosity of 3500 cp, and an ethylene content of 17%. (Comparative Example 2) In Example 1, the ethylene pressure was 5 kg / c.
The same reaction as in Example 1 was performed, except that m 2 was changed.
The solid content concentration of the obtained synthetic resin emulsion was 37.8.
%, Viscosity was 2700 cp, and ethylene content was 3.4%. Comparative Example 3 Example 1 was repeated except that 0.5 part of acrylic acid was added together with 32.4 parts of vinyl acetate.
The same reaction as described above was performed. The resulting synthetic resin emulsion had a solid content of 38.4%, a viscosity of 3500 cp, and an ethylene content of 7.3%. Comparative Example 4 The same reaction as in Example 1 was performed except that acrylic acid was not used. The solid content concentration of the obtained synthetic resin emulsion was 38.5%, the viscosity was 5600 cp, and the ethylene content was 7.3%.
Examples 1, 2, 3, 4 and Comparative Examples 1, 2, 3, 4
Table 1 shows the physical properties and applied performance of the sample.
【００１８】[0018]
【表１】 [Table 1]
【００１９】ＭＦＴ（℃）：最低造膜温度 皮膜の弾性率：２０℃、６５％ＲＨ下で約０．０３ｃｍ
の膜厚の皮膜を形成させ、幅０．５ｃｍ、長さ３ｃｍの
試験片を作製した。得られた試験片の強伸度を測定し、
弾性率を算出した。 耐水性：紙管原紙にｗｅｔ３０ｇ／ｍ2 の接着剤で接着
し、１日乾燥後、水に２４時間浸漬させた後の状態を観
察した。 ＊：酢酸ビニルと同時に滴下した。MFT (° C.): minimum film forming temperature Elastic modulus of film: about 0.03 cm at 20 ° C. and 65% RH
A film having a thickness of 0.5 cm and a length of 3 cm was prepared. Measure the strength and elongation of the obtained test piece,
The elastic modulus was calculated. Water resistance: Adhered to a paper tube base paper with an adhesive of wet 30 g / m 2 , dried for 1 day, and immersed in water for 24 hours, and observed. *: Dropped simultaneously with vinyl acetate.
【００２０】[0020]
【発明の効果】本発明の紙管用接着剤は、造膜性に優
れ、乾燥皮膜の弾性率が高いことから、高耐圧紙管用接
着剤として使用することができる。The paper tube adhesive of the present invention has excellent film-forming properties and a high elasticity of the dried film, so that it can be used as a high pressure-resistant paper tube adhesive.
フロントページの続き (56)参考文献 特開 昭53−117035（ＪＰ，Ａ) 特開 昭56−81380（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) C09J 1/00 - 201/10Continuation of the front page (56) References JP-A-53-117035 (JP, A) JP-A-56-81380 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) C09J 1 / 00-201/10
Claims (1)
ビニルアルコール１０〜２０重量部の存在下に、酢酸ビ
ニル８５〜９５重量％およびエチレン５〜１５重量％か
らなるモノマー８０〜９０重量部を乳化重合して得られ
るエチレン−酢酸ビニル共重合樹脂エマルジョンを主成
分とする紙管用接着剤。1. In the presence of 10-20 parts by weight of polyvinyl alcohol containing 5-20% by weight of acrylic acid, 80-90 parts by weight of a monomer consisting of 85-95% by weight of vinyl acetate and 5-15% by weight of ethylene. An adhesive for paper tubes mainly comprising an ethylene-vinyl acetate copolymer resin emulsion obtained by emulsion polymerization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31403593A JP2757113B2 (en) | 1993-11-22 | 1993-11-22 | Adhesive for paper tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31403593A JP2757113B2 (en) | 1993-11-22 | 1993-11-22 | Adhesive for paper tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07145363A JPH07145363A (en) | 1995-06-06 |
| JP2757113B2 true JP2757113B2 (en) | 1998-05-25 |
Family
ID=18048434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31403593A Expired - Fee Related JP2757113B2 (en) | 1993-11-22 | 1993-11-22 | Adhesive for paper tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2757113B2 (en) |
-
1993
- 1993-11-22 JP JP31403593A patent/JP2757113B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07145363A (en) | 1995-06-06 |
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