JPH09310047A - Vinyl-based adhesive composition - Google Patents

Vinyl-based adhesive composition

Info

Publication number
JPH09310047A
JPH09310047A JP12717196A JP12717196A JPH09310047A JP H09310047 A JPH09310047 A JP H09310047A JP 12717196 A JP12717196 A JP 12717196A JP 12717196 A JP12717196 A JP 12717196A JP H09310047 A JPH09310047 A JP H09310047A
Authority
JP
Japan
Prior art keywords
vinyl
fine powder
adhesive composition
adhesive
acrylic resin
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.)
Pending
Application number
JP12717196A
Other languages
Japanese (ja)
Inventor
Takeshi Yadokoro
武 谷所
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANNA KAGAKU KOGYO KK
Original Assignee
HANNA KAGAKU KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANNA KAGAKU KOGYO KK filed Critical HANNA KAGAKU KOGYO KK
Priority to JP12717196A priority Critical patent/JPH09310047A/en
Publication of JPH09310047A publication Critical patent/JPH09310047A/en
Pending legal-status Critical Current

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  • Adhesives Or Adhesive Processes (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain a vinyl-based adhesive composition having an improved T-peel strength and a maintained tensile strength, useful as an adhesive for a metal, plastics, etc., by dispersing fine powders of a specific acryl resin into a vinyl-based adhesive. SOLUTION: Fine powders of (B) an acryl resin is dispersed in a polymerization raw material of (A) a vinyl-based polymer. The component B is preferably dispersed in the component A dissolving (C) a thermoplastic resin. The component B is preferably a fine powder of polybutyl acrylate, a fine powder of a partially cross-linked polybutyl acrylate or a fine powder having a core consisting essentially of butyl acrylate and a shell consisting essentially of polymethyl methacrylate. Moreover, the component B has <=1μm particle diameter and the content of the component B is 1-20wt.%.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明が属する技術分野】本発明は、ビニル系接着剤組
成物に関し、詳しくは、金属、プラスチック等の接着剤
として有用なビニル系接着剤組成物に関する。
TECHNICAL FIELD The present invention relates to a vinyl adhesive composition, and more particularly to a vinyl adhesive composition useful as an adhesive for metals, plastics and the like.

【0002】[0002]

【従来の技術】アクリル樹脂接着剤、ビニル樹脂接着剤
等のビニル系接着剤は、ビニル系モノマー(重合原
料)、例えば、アクリル系モノマーを有効成分とし、そ
のラジカル重合により硬化する接着剤である。ビニル系
モノマーのラジカル重合により硬化する接着剤は、多数
開発され、瞬間接着剤、アクリル系接着剤(SGA)、
UV硬化型接着剤、嫌気性接着剤等がある。一般に、接
着剤の特性は、引張せん断強さ、はく離強さ及びT−は
く離強さにより評価される。従来のラジカル重合により
固化するビニル系接着剤は、金属やプラスチックの引張
せん断強さやはく離強さは、比較的良好であるが、T−
はく離強さが、必ずしも、十分ではなく、ある種の用途
には対応できない場合があった。
PRIOR ART A vinyl adhesive such as an acrylic resin adhesive or a vinyl resin adhesive is an adhesive which contains a vinyl monomer (polymer raw material), for example, an acrylic monomer as an active ingredient and is cured by radical polymerization thereof. . A large number of adhesives that cure by radical polymerization of vinyl monomers have been developed, including instant adhesives, acrylic adhesives (SGA),
There are UV curable adhesives, anaerobic adhesives and the like. Generally, adhesive properties are evaluated by tensile shear strength, peel strength and T-peel strength. The conventional vinyl-based adhesives that are solidified by radical polymerization have relatively good tensile shear strength and peel strength of metals and plastics, but T-
The peel strength was not always sufficient and in some cases could not be adapted to certain applications.

【0003】一般に、接着剤を柔軟化することにより、
T−はく離強さが向上することが知られている。しか
し、従来の成分調整等の方法で、ビニル系接着剤を柔軟
化しようとすると、そのTgが低下し、接着剤のその他
の特性、特に引張せん断強さに悪影響を与える。
Generally, by softening the adhesive,
It is known that T-peel strength is improved. However, if it is attempted to soften the vinyl adhesive by conventional methods such as component adjustment, its Tg is lowered, which adversely affects other properties of the adhesive, in particular, tensile shear strength.

【0004】[0004]

【発明が解決しようとする課題】本発明は、ビニル系接
着剤のTgの低下を最小限にし、即ち接着剤の硬化を柔
軟化させずに、引張せん断強さを保ったままT−はく離
強さを向上させる技術を提供することを目的とする。
SUMMARY OF THE INVENTION The present invention minimizes T-drop of a vinyl adhesive, ie, does not soften the curing of the adhesive, while maintaining tensile shear strength and T-peel strength. To provide technology to improve

【0005】[0005]

【課題を解決するための手段】本発明者は、ビニル系接
着剤に、特定のアクリル樹脂微粉末を分散させると、T
−はく離強さが向上し、しかも、引張せん断強さが維持
されることを見出し本発明を完成した。
[Means for Solving the Problems] When the present inventors disperse a specific acrylic resin fine powder in a vinyl adhesive, T
-Completed the present invention by finding that peel strength is improved and tensile shear strength is maintained.

【0006】本発明は、ビニル系重合原料(必要に応じ
て熱可塑性樹脂を溶解させた溶液)中にアクリル樹脂微
粉末(例えば、ポリアクリル酸ブチルの微粉末)が分散
した(特に、ビニル系重合原料のラジカル重合により硬
化する)ビニル系接着剤組成物にある。
In the present invention, an acrylic resin fine powder (for example, a fine powder of polybutyl acrylate) is dispersed in a vinyl polymer raw material (a solution in which a thermoplastic resin is optionally dissolved) (in particular, a vinyl polymer) It is in a vinyl adhesive composition cured by radical polymerization of a polymerization raw material.

【0007】[0007]

【発明の実施の形態】ビニル系重合原料 ビニル系重合原料としては、ビニル基を有するビニル系
モノマー及びその比較的低分子量の重合体(オリゴマ
ー)を使用できる。ビニル系重合原料は、ラジカル重合
により高分子量重合体となり、接着剤の硬化に寄与す
る。ビニル系重合原料としては、エポキシアクリレー
ト、トリメチロールプロパントリアクレイレート、1,
6−ヘキサンジオールジアクリレート、メチルメタアク
リレート、オリゴエステルアクリレート等のアクリル系
モノマー;スチレン等のスチレン系モノマーを使用でき
る。
BEST MODE FOR CARRYING OUT THE INVENTION Vinyl-Based Polymer Raw Material As a vinyl-based polymer raw material, vinyl-based monomers having a vinyl group and polymers (oligomers) having a relatively low molecular weight can be used. The vinyl polymerization raw material becomes a high molecular weight polymer by radical polymerization and contributes to the curing of the adhesive. As a vinyl-based polymer raw material, epoxy acrylate, trimethylolpropane triacrelate, 1,
Available styrenic mono- mers such as styrene; 6-hexanediol diacrylate, acrylic monomers such as methyl methacrylate, oligoester acrylate
Ru.

【0008】アクリル樹脂微粉末 アクリル樹脂微粉末としては、必要に応じて部分架橋等
の変性を施した各種のアクリル樹脂の微粉末、例えば、
ポリアクリル酸ブチルの微粉末を使用できる。好ましい
実施の形態では、部分架橋したポリアクリル酸ブチルの
微粉末を使用する。ポリアクリル酸ブチル又は部分架橋
したポリアクリル酸ブチルを単独で微粉末として分離す
ることは技術的に困難である。しかし、例えば、ポリア
クリル酸ブチルをコアとし、その周囲に、より安定な樹
脂、例えば、ポリメチルメタアクリレートのシェルを施
すことにより、ポリアクリル酸ブチルを主成分とするア
クリル樹脂微粉末を製造できる。
Acrylic resin fine powder As the fine powder of acrylic resin, fine powders of various acrylic resins which have been subjected to modification such as partial crosslinking as required, for example,
A fine powder of butyl polyacrylate can be used. In a preferred embodiment, a fine powder of partially crosslinked butyl polyacrylate is used. It is technically difficult to separate polybutyl acrylate or partially crosslinked polybutyl acrylate alone as a fine powder. However, for example, by using a core of butyl acrylate as a core and applying a shell of a more stable resin such as polymethyl methacrylate around the core, it is possible to produce an acrylic resin fine powder mainly composed of butyl polyacrylate. .

【0009】アクリル樹脂微粉末は公知であり、市販さ
れている。例えば、ポリアクリル酸ブチルを主成分とす
るコアとポリメチルメタアクリレートを主成分とするシ
ェルを有する部分架橋アクリル樹脂微粉末は、日本ゼオ
ンよりゼオンアクリレートレジンF−351の商品名で
市販されている。
Acrylic resin fine powders are known and are commercially available. For example, a partially crosslinked acrylic resin fine powder having a core composed mainly of butyl polyacrylate and a shell composed mainly of polymethyl methacrylate is commercially available from Nippon Zeon under the trade name of Zeon acrylate resin F-351. .

【0010】好ましい実施の形態では、粒径が1μm以
下のアクリル樹脂微粉末を使用する。アクリル樹脂微粉
末の含有量は特に限定されないが、通常、1〜20重量
%、好ましくは5〜20重量%とするのがよい。好まし
い実施の形態では、粒子径が1μm程度で、ポリブチル
アクリレートからなるコア部と、ポリメチルメタアクリ
レートからなるシェル部からなり、コア部/シェル部の
重量組成比が1/1〜1.4程度、特に約1/1.2の
アクリル樹脂微粉末を使用する。
In a preferred embodiment, acrylic resin fine powder having a particle size of 1 μm or less is used. Although the content of the acrylic resin fine powder is not particularly limited, it is usually 1 to 20% by weight, preferably 5 to 20% by weight. In a preferred embodiment, the particle diameter is about 1 μm and it comprises a core made of polybutyl acrylate and a shell made of polymethyl methacrylate, and the weight composition ratio of the core to the shell is 1/1 to 1.4. Use acrylic resin fine powder of degree, especially about 1 / 1.2.

【0011】熱可塑性樹脂 ビニル系重合原料には、必要に応じて熱可塑性樹脂を溶
解させることができる。熱可塑性樹脂を溶解させること
により、ビニル系重合原料の重合により生じる収縮を抑
制することができる。熱可塑性樹脂としては、飽和ポリ
エステル、アクリル樹脂を使用できる。熱可塑性樹脂
は、ビニル系重合原料の種類等にあわせて、その重合に
よる接着特性に悪影響を与えないものを適宜選択して使
用する。熱可塑性樹脂を使用する場合には、通常、ビニ
ル系重合原料に対して30重量%以下、好ましくは20
重量%以下(通常は5重量%以上)の熱可塑性樹脂を使
用する。
A thermoplastic resin can be dissolved in the thermoplastic resin vinyl-based polymer raw material, if necessary. By dissolving the thermoplastic resin, it is possible to suppress the contraction caused by the polymerization of the vinyl-based polymer raw material. As the thermoplastic resin, saturated polyester and acrylic resin can be used. The thermoplastic resin is appropriately selected and used according to the type of the vinyl-based polymer raw material and the like, without adversely affecting the adhesive properties by the polymerization. When a thermoplastic resin is used, it is usually at most 30% by weight, preferably 20% by weight, based on the vinyl polymer raw material.
Use of a thermoplastic resin of at most weight percent (usually at least 5 weight percent).

【0012】その他 本発明の接着剤組成物は、その接着剤としての使用方法
等に応じて、重合開始剤、促進剤、溶剤等の各種の添加
剤を含有することができる。例えば、本発明の接着剤組
成物は、ビニル系重合原料の重合のための重合開始剤を
含有することができる。重合開始剤としては、ケトンパ
ーオキサイド等の公知のラジカル重合開始剤を使用でき
る。接着剤の保存安定性等の点より、二液型とし、本発
明の接着剤組成物を接着剤として使用する際に重合開始
剤を添加することもできる。また、光重合開始剤を使用
して紫外線硬化性接着剤とすることもできる。
In addition, the adhesive composition of the present invention can contain various additives such as a polymerization initiator, an accelerator, a solvent and the like according to the method of use as an adhesive and the like. For example, the adhesive composition of the present invention can contain a polymerization initiator for polymerization of a vinyl-based polymer raw material. As the polymerization initiator, known radical polymerization initiators such as ketone peroxide can be used. From the viewpoint of storage stability and the like of the adhesive, a two-component type may be used, and a polymerization initiator may be added when the adhesive composition of the present invention is used as an adhesive. A photopolymerization initiator can also be used to make an ultraviolet curable adhesive.

【0013】[0013]

【実施例】実施例1 エポキシアクリレート(リポキシVRー77、昭和高分
子(株)製)を55重量部、トリメチロールプロパント
リアクリレート(TMP−A、共栄社化学製)を26重
量部及び1,6−ヘキサンジオールジアクリレート(1
・6HX−A、共栄社化学製)を20重量部の割合で配
合したビニル系重合原料86重量部に対して、10重量
部の部分架橋アクリル樹脂微粉末(ゼオンアクリレート
レジンF−351、日本ゼオン製)を3本ロールで混練
した後、4重量部の光開始剤(IRGACURE65
1、チバ−ガイギー製)を混合して紫外線硬化型接着剤
とした(実施例1)。得られた接着剤の粘度(25℃)
は1350m・Pasであった。
EXAMPLES Example 1 55 parts by weight of epoxy acrylate (Lipoxy VR-77, manufactured by Showa Highpolymer Co., Ltd.), 26 parts by weight of trimethylolpropane triacrylate (TMP-A, manufactured by Kyoeisha Chemical) and 1,6 -Hexanediol diacrylate (1
10 parts by weight of a partially crosslinked acrylic resin fine powder (Zeon acrylate resin F-351, manufactured by Nippon Zeon, based on 86 parts by weight of a vinyl-based polymer raw material blended with 20 HW-A of 6HX-A, manufactured by Kyoeisha Chemical) ) After kneading with 3 rolls, 4 parts by weight of a photoinitiator (IRGACURE 65)
1, manufactured by Ciba-Geigy) to give an ultraviolet-curable adhesive (Example 1). Viscosity of obtained adhesive (25 ° C)
Was 1350 m · Pas.

【0014】比較例として、同配合量のビニル系重合原
料101重量部に4重量部の前記光開始剤を混合して紫
外線硬化型接着剤とした(比較例1)。得られた接着剤
の粘度(25℃)は1000m・Pasであった。
As a comparative example, 4 parts by weight of the photo-initiator was mixed with 101 parts by weight of the vinyl polymer raw material in the same amount to obtain an ultraviolet curable adhesive (Comparative Example 1). The viscosity (25 ° C.) of the obtained adhesive was 1000 m · Pas.

【0015】各接着剤について、JIS−K6850に
従って引張せん断強さを、また、JIS−K6854に
従ってT−はく離強さを測定した。被着体として、3m
m厚のアクリル板を前処理なしで使用した。T−はく離
用のアクリル板は、150×150mmの正方形のアク
リル板を一辺に平行で端から50mmの直線に沿って9
0°に曲げて断面L字型とし、二枚のアクリル板のそれ
ぞれの150×100mmの広さの平面の外側に接着剤
を塗布した後、断面T字型になるように、接着剤の塗布
面を相互に接着し、クリップで止めて紫外線照射した。
紫外線照射には1kWの高圧水銀ランプ(セン特殊光源
(株)製)を使用し、距離30cmの位置から1kWの
条件で20秒間照射した。引張速度2mm/分の条件で
測定した引張せん断強さ及び引張速度75mm/分の条
件で測定したT−はく離強さの結果を表1に示す。
The tensile shear strength of each adhesive was measured in accordance with JIS-K 6850, and the T-peel strength was measured in accordance with JIS-K 6854. 3 m as an adherend
m thick acrylic plates were used without pretreatment. The T-peel acrylic plate is a 150 × 150 mm square acrylic plate parallel to one side 9 along a straight line 50 mm from the end.
Apply an adhesive to the outside of each 150 x 100 mm flat surface of each of the two acrylic plates by bending it at 0 ° into an L-shaped cross section, and then applying an adhesive so that it has a T-shaped cross section. The surfaces were glued together, clipped off and irradiated with UV light.
A 1 kW high pressure mercury lamp (manufactured by Sen Special Light Source Co., Ltd.) was used for ultraviolet irradiation, and irradiation was performed for 20 seconds under a condition of 1 kW from a position of a distance of 30 cm. Table 1 shows the results of tensile shear strength measured under conditions of a tensile speed of 2 mm / min and T-peel strength measured under conditions of a tensile speed of 75 mm / min.

【0016】[0016]

【表1】 引張せん断強さ(kgf/cm 2) T−はく離強さ(kgf/cm 2 実施例1 125 1.3比較例1 93 0.6 [Table 1] Tensile shear strength (kgf / cm 2 ) T-peel strength (kgf / cm 2 ) Example 1 125 1.3 Comparative Example 1 93 0.6

【0017】実施例2 メチルメタアクリレート(MMA)50重量部に対して
40重量部のアクリル樹脂(ダイヤナールBR−10
6、三菱レイヨン製)を溶解させた後、10重量部のア
クリル樹脂微粉末(ゼオンアクリルレジンF−351)
を分散させた。得られた組成物に、ナフテン酸コバルト
(6%)を0.2重量部、促進剤としてジメチルアニリ
ンを0.1重量部の割合で添加して接着剤組成物とした
(実施例2)。得られた接着剤組成物の粘度(25℃)
は10810m・Pasであった。これを使用する際
に、ケトンパーオキサイド系重合開始剤(パーメック
N、日本油脂製)を1重量部の割合で添加して接着剤と
した。
Example 2 40 parts by weight of an acrylic resin (Dianal BR-10, based on 50 parts by weight of methyl methacrylate (MMA)
6, After dissolving Mitsubishi Rayon), 10 parts by weight of acrylic resin fine powder (Zeon acrylic resin F-351)
Were dispersed. An adhesive composition was obtained by adding 0.2 parts by weight of cobalt naphthenate (6%) and 0.1 parts by weight of dimethylaniline as an accelerator to the composition obtained (Example 2). Viscosity of the obtained adhesive composition (25 ° C.)
Was 10,810 m · Pas. When using this, a ketone peroxide type polymerization initiator (Permec N, manufactured by Nippon Oil and Fats Co., Ltd.) was added at a ratio of 1 part by weight to prepare an adhesive.

【0018】比較例として、MMA50重量部に対して
50重量部のアクリル樹脂を溶解させた組成物に、ナフ
テン酸コバルト(6%)を0.2重量部、促進剤として
ジメチルアニリンを0.1重量部の割合で添加して接着
剤組成物とした(比較例2)。得られた接着剤組成物の
粘度(25℃)は6600m・Pasであった。これを
使用する際に、ケトンパーオキサイド系重合開始剤(パ
ーメックN)を1重量部の割合で添加して接着剤とし
た。
As a comparative example, 0.2 parts by weight of cobalt naphthenate (6%) and 0.1 parts of dimethylaniline as an accelerator are contained in a composition obtained by dissolving 50 parts by weight of acrylic resin in 50 parts by weight of MMA. It added by the ratio of the weight part and was set as the adhesive composition (comparative example 2). The viscosity (25 ° C.) of the obtained adhesive composition was 6600 m · Pas. When using this, the ketone peroxide type polymerization initiator (Permec N) was added in the ratio of 1 weight part, and it was set as the adhesive agent.

【0019】各接着剤について、実施例1と同様にして
引張せん断強さ及びT−はく離強さを測定した。ただ
し、被着体の前処理として、メチルエチルケトンで拭き
取りを行なった。また、紫外線照射は必要ないので行な
わなかった。結果を表2に示す。
The tensile shear strength and the T-peel strength were measured in the same manner as in Example 1 for each adhesive. However, as pretreatment of the adherend, it was wiped with methyl ethyl ketone. Moreover, since ultraviolet irradiation was not required, it did not perform. The results are shown in Table 2.

【0020】[0020]

【表2】 引張せん断強さ(kgf/cm 2) T−はく離強さ(kgf/cm 2 実施例2 105 2.9比較例2 65 1.6 [Table 2] Tensile shear strength (kgf / cm 2 ) T-peel strength (kgf / cm 2 ) Example 2 105 2.9 Comparative Example 2 65 1.6

【0021】実施例3 MMA20重量部及びスチレン30重量部の割合で混合
した重合原料に、飽和ポリエステルを40重量部の割合
で溶解させた後、10重量部の部分架橋アクリル樹脂微
粉末(ゼオンアクリルレジンF−351)を分散させ
た。得られた組成物に、ナフテン酸コバルト(6%)を
0.2重量部、促進剤としてジメチルアニリンを0.1
重量部の割合で添加して接着剤組成物とした(実施例
3)。得られた接着剤組成物の粘度(25℃)は630
00m・Pasであった。これを使用する際に、ケトン
パーオキサイド系重合開始剤(パーメックN)を1重量
部の割合で添加して接着剤とした。
EXAMPLE 3 A saturated polyester is dissolved in a proportion of 40 parts by weight in a polymerization raw material mixed with 20 parts by weight of MMA and 30 parts by weight of styrene, and then 10 parts by weight of a partially crosslinked acrylic resin fine powder (Zeon acrylic) Resin F-351) was dispersed. To the obtained composition, 0.2 parts by weight of cobalt naphthenate (6%), 0.1 of dimethylaniline as an accelerator
It was added in the proportion of parts by weight to prepare an adhesive composition (Example 3). The viscosity (25 ° C.) of the obtained adhesive composition is 630
It was 00 m · Pas. When using this, the ketone peroxide type polymerization initiator (Permec N) was added in the ratio of 1 weight part, and it was set as the adhesive agent.

【0022】比較例として、MMA20重量部及びスチ
レン30重量部の割合で混合した重合原料に、飽和ポリ
エステルを40重量部の割合で溶解させた組成物に、ナ
フテン酸コバルト(6%)を0.2重量部、促進剤とし
てジメチルアニリンを0.1重量部の割合で添加して接
着剤組成物とした(比較例3)。得られた接着剤組成物
の粘度(25℃)は32000m・Pasであった。こ
れを使用する際に、ケトンパーオキサイド系重合開始剤
(パーメックN)を1重量部の割合で添加して接着剤と
した。
As a comparative example, cobalt naphthenate (6%) was added to a composition prepared by dissolving 40 parts by weight of a saturated polyester in a polymerization raw material mixed with 20 parts by weight of MMA and 30 parts by weight of styrene. An adhesive composition was prepared by adding 2 parts by weight and 0.1 part by weight of dimethylaniline as an accelerator (Comparative Example 3). The viscosity (25 ° C.) of the obtained adhesive composition was 32000 m · Pas. When using this, the ketone peroxide type polymerization initiator (Permec N) was added in the ratio of 1 weight part, and it was set as the adhesive agent.

【0023】各接着剤について、実施例2と同様にして
引張せん断強さ及びT−はく離強さを測定した。結果を
表3に示す。
The tensile shear strength and the T-peel strength of each adhesive were measured in the same manner as in Example 2. The results are shown in Table 3.

【0024】[0024]

【表3】 引張せん断強さ(kgf/cm 2) T−はく離強さ(kgf/cm 2 実施例3 138 1.3比較例3 97 0.7 [Table 3] Tensile shear strength (kgf / cm 2 ) T-peel strength (kgf / cm 2 ) Example 3 138 1.3 Comparative Example 3 97 0.7

【0025】実施例4 オリゴエステルアクリレート(アロニックスM−625
0、東亜合成化学製)を80重量部及び1,6−ヘキサ
ンジオールジアクリレートを16重量部の割合で配合し
たビニル系重合原料に、10重量部の部分架橋アクリル
樹脂微粉末(ゼオンアクリルレジンF−351)を3本
ロールで混練した後、4重量部の開始剤(IRGACU
RE651)を混合して紫外線硬化型接着剤とした。得
られた接着剤の粘度(25℃)は250m・Pasであ
った。
EXAMPLE 4 Oligoester Acrylate (ALONIX M-625)
10 parts by weight of a partially crosslinked acrylic resin fine powder (Zeon acrylic resin F) in a vinyl polymerization raw material containing 80 parts by weight of Toagosei Chemical Co., Ltd. and 16 parts by weight of 1,6-hexanediol diacrylate -351) after kneading with 3 rolls, 4 parts by weight of initiator (IRGACU)
RE 651) was mixed to form an ultraviolet curing adhesive. The viscosity (25 ° C.) of the obtained adhesive was 250 m · Pas.

【0026】比較例として、同配合量のビニル系重合原
料96重量部に4重量部の前記開始剤を混合して紫外線
硬化型接着剤とした(比較例4)。得られた接着剤の粘
度(25℃)は200m・Pasであった。
As a comparative example, 4 parts by weight of the above initiator was mixed with 96 parts by weight of the vinyl polymer raw material in the same amount to obtain an ultraviolet curing adhesive (comparative example 4). The viscosity (25 ° C.) of the obtained adhesive was 200 m · Pas.

【0027】各接着剤について、実施例1と同様にして
引張せん断強さ及びT−はく離強さを測定した。結果を
表4に示す。
The tensile shear strength and the T-peel strength were measured in the same manner as in Example 1 for each adhesive. The results are shown in Table 4.

【0028】[0028]

【表4】 引張せん断強さ(kgf/cm 2) T−はく離強さ(kgf/cm 2 実施例4 107 2.2比較例4 69 1.0 [Table 4] Tensile shear strength (kgf / cm 2 ) T-peel strength (kgf / cm 2 ) Example 4 107 2.2 Comparative Example 4 69 1.0

【0029】[0029]

【発明の効果】本発明によれば、接着剤の他の特性に悪
影響を与えることなく、T−はく離強さを向上させるこ
とができるので、T−はく離強さと引張せん断強さ等そ
の他の特性が共に良好なビニル系接着剤を提供できる。
According to the present invention, since the T-peel strength can be improved without adversely affecting other properties of the adhesive, other properties such as T-peel strength and tensile shear strength can be obtained. Can provide a good vinyl adhesive.

Claims (8)

【特許請求の範囲】[Claim of claim] 【請求項1】 ビニル系重合原料中にアクリル樹脂微粉
末が分散したビニル系接着剤組成物。
1. A vinyl adhesive composition in which an acrylic resin fine powder is dispersed in a vinyl polymer raw material.
【請求項2】 ビニル系重合原料に熱可塑性樹脂を溶解
させた溶液中にアクリル樹脂微粉末が分散したビニル系
接着剤組成物。
2. A vinyl adhesive composition in which an acrylic resin fine powder is dispersed in a solution in which a thermoplastic resin is dissolved in a vinyl polymer raw material.
【請求項3】 ビニル系重合原料のラジカル重合により
固化する請求項1又は2に記載のビニル系接着剤組成
物。
3. The vinyl adhesive composition according to claim 1, which is solidified by radical polymerization of a vinyl polymer raw material.
【請求項4】 アクリル樹脂微粉末がポリアクリル酸ブ
チルの微粉末である請求項1〜3のいずれかに記載のビ
ニル系接着剤組成物。
4. The vinyl adhesive composition according to any one of claims 1 to 3, wherein the fine acrylic resin powder is a fine powder of butyl polyacrylate.
【請求項5】 アクリル樹脂微粉末が部分架橋したポリ
アクリル酸ブチルの微粉末である請求項1〜3のいずれ
かに記載のビニル系接着剤組成物。
5. The vinyl adhesive composition according to any one of claims 1 to 3, wherein the fine powder of acrylic resin is a fine powder of partially crosslinked poly (butyl acrylate).
【請求項6】 アクリル樹脂微粉末がアクリル酸ブチル
を主成分とするコアとポリメチルメタアクリレートを主
成分とするシェルを有する微粉末である請求項1〜3の
いずれかに記載のビニル系接着剤組成物。
6. The vinyl-based adhesive according to any one of claims 1 to 3, wherein the fine powder of acrylic resin is a fine powder having a core containing butyl acrylate as a main component and a shell containing polymethyl methacrylate as a main component. Agent composition.
【請求項7】 アクリル樹脂微粉末の粒径が1μm以下
である請求項1〜3のいずれかに記載のビニル系接着剤
組成物。
7. The vinyl adhesive composition according to any one of claims 1 to 3, wherein the particle size of the fine powder of acrylic resin is 1 μm or less.
【請求項8】 アクリル樹脂微粉末の含有量が1〜20
重量%である請求項1〜7のいずれかに記載のビニル系
接着剤組成物。
8. The content of acrylic resin fine powder is 1 to 20.
The vinyl adhesive composition according to any one of claims 1 to 7, which is% by weight.
JP12717196A 1996-05-22 1996-05-22 Vinyl-based adhesive composition Pending JPH09310047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12717196A JPH09310047A (en) 1996-05-22 1996-05-22 Vinyl-based adhesive composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12717196A JPH09310047A (en) 1996-05-22 1996-05-22 Vinyl-based adhesive composition

Publications (1)

Publication Number Publication Date
JPH09310047A true JPH09310047A (en) 1997-12-02

Family

ID=14953428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12717196A Pending JPH09310047A (en) 1996-05-22 1996-05-22 Vinyl-based adhesive composition

Country Status (1)

Country Link
JP (1) JPH09310047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009107873A1 (en) * 2008-02-29 2009-09-03 住友化学株式会社 Method of gluing objects together

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009107873A1 (en) * 2008-02-29 2009-09-03 住友化学株式会社 Method of gluing objects together
JP2009227986A (en) * 2008-02-29 2009-10-08 Sumitomo Chemical Co Ltd Method of adhering objects

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