JPS6342925B2 - - Google Patents

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Publication number
JPS6342925B2
JPS6342925B2 JP19879881A JP19879881A JPS6342925B2 JP S6342925 B2 JPS6342925 B2 JP S6342925B2 JP 19879881 A JP19879881 A JP 19879881A JP 19879881 A JP19879881 A JP 19879881A JP S6342925 B2 JPS6342925 B2 JP S6342925B2
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JP
Japan
Prior art keywords
weight
composition
parts
acrylate
component
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
Application number
JP19879881A
Other languages
Japanese (ja)
Other versions
JPS58101107A (en
Inventor
Ryuichi Fujii
Rihei Nagase
Kotaro Nagasawa
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.)
Somar Corp
Original Assignee
Somar Corp
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 Somar Corp filed Critical Somar Corp
Priority to JP19879881A priority Critical patent/JPS58101107A/en
Publication of JPS58101107A publication Critical patent/JPS58101107A/en
Publication of JPS6342925B2 publication Critical patent/JPS6342925B2/ja
Granted legal-status Critical Current

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Description

【発明の詳现な説明】[Detailed description of the invention]

本発明は特定組成よりなる玫倖線硬化性接着性
組成物に関する。 近幎、熱硬化性接着剀に代぀お、玫倖線透化性
で玫倖線照射により硬化が可胜な郚材の分野で玫
倖線硬化性接着剀の利甚が怜蚎されおいる。熱硬
化性接着剀は通垞高枩に長時間保぀お硬化接着を
行なわせる必芁があるが、これに察し、玫倖線硬
化性接着剀では垞枩で秒単䜍の玫倖線照射により
接着ないし䜍眮固定が行なわれるので、䜜業性の
倧幅な向䞊ず゚ネルギヌの倧幅な節枛を実珟する
こずが可胜ずなる。しかし反面、玫倖線硬化性接
着剀は、秒単䜍の硬化反応のため内郚ひずみが増
倧し、十分な接着匷化が埗られないなどの問題を
かかえおいる。 本発明者らは、玫倖線硬化の特色を生しながら
これらの問題を解消した実甚性の高い接着性組成
物を埗るべく鋭意怜蚎を重ねた結果、目的に適合
する組成物を開発するこずに成功した。 本発明は䞋蚘のずおりである。 䞋蚘〔〕〜〔〕を含有する玫倖線硬化性接
着性組成物。 〔〕 分子量1000〜10000の゚チレン性䞍飜和
結合含有䞍飜和ポリ゚ステル 100重量郹 〔〕 䞋匏 〔匏䞭は眮換基を有しおいおもよい炭玠数
〜28の飜和又は䞍飜和アルキレン基、は氎
玠原子又はメチル基を衚わす。〕 で瀺されるゞメタアクリレヌト 30〜100重量郹 〔〕 ヒドロキシアルキルメタアクリレヌ
ト 20〜100重量郹 〔〕 䞋匏 〔匏䞭Arは眮換基を有しおいおもよいプ
ニル基、は氎玠原子又はメチル基、は〜
の敎数を衚わす。〕 で瀺されるプノキシ誘導䜓 20〜100重量郹 なお、本明现曞においお「メタアクリレヌ
ト」はアクリレヌト又はメタアクリレヌトの意味
に甚いられるものずする。 本発明の組成物は、二぀の基材を接着する本来
の接着甚途のほかに、衚面保護、光沢付䞎、耐食
性付䞎等のために衚面塗垃する、いわば片面接着
的な甚途にも有効に䜿甚するこずができる。 そしお、本発明の組成物を甚いるずきは、接着
が秒単䜍の玫倖線照射により行なわれるため、䜜
業性が倧幅に向䞊し、゚ネルギヌが節玄され、し
かも、実甚䞊十分な接着匷床が埗られる。 本発明の組成物における必須成分〔〕〜
〔〕に぀いお説明する。 〔〕 成分 この成分は分子量1000〜10000の゚チレン性䞍
飜和結合含有䞍飜和ポリ゚ステルである。このも
のは無氎フタル酞、む゜フタル酞、無氎マレむン
酞、フマル酞等の䞍飜和二塩基性酞ず、プロピレ
ングリコヌル、゚チレングリコヌル又はビスプ
ノヌル等のゞオヌルずを、テトラブチルゞルコ
ネヌト、テトラオクチルチタネヌト等の觊媒の存
圚䞋で゚ステル化しお補造される。通垞は酞䟡10
〜60皋床のものが有利に䜿甚される。 䞍飜和ポリ゚ステルの倚くのものは、呚知のよ
うに、スチレン等の重合性単量䜓で垌釈された溶
液の圢で垂販されおいるが、本発明の玫倖線硬化
性接着性組成物は、品質管理䞊かかる重合性単量
䜓を含たせない圢態で甚いるのが望たしい。 〔〕 成分 この成分は、䞋匏 蚘号の意味は前蚘のずおり で瀺されるゞメタアクリレヌトである。 このものの補法は、二塩基性脂肪族酞ずしおコ
ハク酞を出発原料ずしおゞアクリレヌトを埗る堎
合を䟋ずしお瀺すず次のずおりである。 二塩基性脂肪族ずしおはコハク酞、グルタル
酞、アゞピン酞、ゞメチルアゞピン酞、スベリン
酞、゚チルプロピルグルタル酞、ブラシル酞ト
リデカン二酞等の飜和酞のほか、ヘプテン二
酞、ゞメチルオクテン二酞、りンデセン二酞、ペ
ンタデカンゞ゚ン二酞等の䞍飜和酞が䜿甚され
る。これらのうち抂しお炭玠数10〜30の飜和酞又
は䞍飜和酞の䜿甚が有利である。この堎合、埗ら
れる〔〕成分の前蚘匏䞭のアルキレン基の炭
玠数は〜28ずなる。この皮の二塩基性脂肪族酞
は単䞀化合物ずしお䜿甚しおもよいが、混合物の
圢で利甚するのが有利である。混合物ずしおは、
䟋えばシクロヘキサノンにプントン詊薬を䜜甚
させお埗られる脂肪族酞混合物があり、このもの
は垂販されおいる。 〔〕 成分 この成分は、ヒドロキシアルキルメタアク
リレヌトであり、このものは、䟋えばアクリル酞
又はメタアクリル酞ず゚チレンオキシド又はプロ
ピレンオキシドずから補造される。具䜓的にはβ
―ヒドロキシ゚チルメタアクリレヌト、β―
ヒドロキシプロピルメタアクリレヌト等を挙
げるこずができる。 〔〕成分 この成分は、䞋匏 蚘号の意味は前蚘のずおり で瀺されるプノキシ誘導䜓であり、が〜
である各単独物でも、又は、これらの混合物でも
よい。このものは䞋匏 ArOCH2CH2Oo のポリ゚チレンオキシド誘導䜓ずアクリル酞又は
メタアクリル酞ずを脱氎瞮合させお補造される。 前蚘〔〕〜〔〕成分は本発明の組成物に必
須のものである。 すなわち、䞍飜和ポリ゚ステル〔〕は垞枩で
固型又は高粘床の暹脂であり、これを取扱いに適
する粘床にさげるために垌釈する必芁があり、こ
のための垌釈剀は、玫倖線による秒単䜍の硬化を
可胜にし、か぀䞍飜和ポリ゚ステル固有の接着性
を損わないものでなければならない。゚チレン性
䞍飜和結合を有する皮々の化合物の䞭から特にヒ
ドロキシアルキルメタアクリレヌト〔〕ず
プノキシ誘導䜓〔〕ずがこの目的に適合する
垌釈剀ずしお遞定される。しかし、〔〕、〔〕、
〔〕成分の組成物から埗られる硬化物は、抂
しおもろく接着性が必ずしも十分ではない。そこ
で、さらにゞメタアクリレヌト〔〕が加え
られ、この結果、接着性が倧幅に向䞊し、〔〕
〜〔〕成分を含有する本発明の玫倖線硬化性組
成物が優れた接着性を発揮するこずが可胜ずな
る。 本発明の組成物の含有量に぀いおは、䞍飜和ポ
リ゚ステル〔〕100重量郚に察しゞメタア
クリレヌト〔〕が30〜100重量郚である。〔〕
成分が30重量郚未満の堎合は接着性が䜎䞋し、
100重量郚を超える堎合は硬化物の硬床が著しく
䜎䞋する。ヒドロキシアルキルメタアクリレ
ヌト〔〕ずプノキシ誘導䜓〔〕はそれぞれ
20〜100重量郚である。〔〕又は〔〕が20重量
郚未満の堎合は、䞍飜和ポリ゚ステルに察する垌
釈効果が十分に発揮されず組成物の粘床が高すぎ
お䜜業性が悪くなり、たた、基材ずの濡れが悪く
接着性が䞍十分ずなる。10重量郚を超える堎合
は、垌釈が過床にな぀お硬化物䞭の架橋密床が䜎
䞋し、このため玫倖線硬化性ず接着匷床が䜎䞋す
る。 ヒドロキシアルキルメタアクリレヌト
〔〕ずプノキシ誘導䜓〔〕ずの関係量比は、
〔〕〔〕1/0.3〜1/3が有利である。 本発明の組成物には、所望により䞋蚘のような
他の物質を含有させおもよい。 粘床又はレベリング性を調敎するために、―
゚チルヘキシルアクリレヌト、テトラヒドロフル
フリルアクリレヌト、α―メチルスチレン、―
ビニルピロリドン等の゚チレン性䞍飜和結合個
を有する䜎粘床の単官胜モノマヌを、たた、硬化
速床又は硬化物匷床を高めるために、―ヘ
キサンゞオヌルゞアクリレヌト、トリメチロヌル
プロパントリアクリレヌト、ゞペンタ゚リスリト
ヌルヘキサアクリレヌト等の゚チレン性䞍飜和結
合を耇数有する倚官胜モノマヌを混入するこずが
できる。これら単官胜モノマヌ又は倚官胜モノマ
ヌは、前蚘必須成分からなる組成物党重量を100
郚ずしおそれぞれ10郚以内含有させるこずが望た
しい。 ゚チレン性䞍飜和結合を有する化合物の玫倖線
硬化促進に有効な光増感剀を、本発明の組成物に
添加するのが有利である。この目的には、䟋え
ば、ベンゟプノン、ベンゞル、ミヒラヌのケト
ンのようなケトン類、ベンゟむン、ベンゟむンメ
チル゚ヌテル、ベンゟむン゚チル゚ヌテル、ベン
ゟむンむ゜プロピル゚ヌテル等のベンゟむン類、
ナフトキノン、―tert―ブチルアントラキノ
ン、アセナフテンキノン等のキノン類、キサント
ン、チオキサントン、―クロルチオキサントン
等の耇玠環化合物を䜿甚するこずができる。 たた、組成物の䜿甚に圓぀お玫倖線照射ず加熱
が䜵甚されるずきは、組成物に熱硬化觊媒を添加
しおおくのが奜たしい。かかる觊媒ずしおは通垞
のラゞカル開始剀が䜿甚され、具䜓的にはメチル
゚チルケトンパヌオキシド、シクロヘキサノンパ
ヌオキシド等のケトンパヌオキシド類、アセチル
パヌオキシド、ベンゟむルパヌオキシド等のゞア
シルパヌオキシド類、tert―ブチルヒドロパヌオ
キシド、クメンヒドロパヌオキシド等のヒドロパ
ヌオキシド類、ゞ―tert―ブチルパヌオキシド、
ゞクミルパヌオキシド等のゞアルキルパヌオキシ
ド類、tert―ブチルパヌアセテヌト、tert―ブチ
ルパヌベンゟ゚ヌト等のアルキルパヌ゚ステル
類、ゞむ゜プロピルパヌオキシドカルボナヌト、
ビス―tert―ブチルシクロヘキシルパヌオ
キシゞカルボナヌト等のパヌカルボナヌト類、又
はアゟビスむ゜ブチロニトリル等が挙げられる。 このほか本発明組成物の保存䞭の熱硬化を防止
する目的で埮量の熱重合犁止剀を加えるのが有利
である。この埮量の熱重合犁止剀は、玫倖線照射
埌の加熱による硬化を実質的に阻害するものでは
ない。かかる熱重合犁止剀の代衚䟋ずしおは、ヒ
ドロキノン、ヒドロキノンモノメチル゚ヌテル、
プノチアゞン、あるいはクペロン等を挙げるこ
ずができる。 さらに、熱硬化觊媒を含有する本発明組成物䞭
に、硬化促進剀ずしお、ナフテン酞コバルト、オ
クテン酞コバルト、ナフテン酞マンガン、オクテ
ン酞マンガン等の有機酞金属塩金属石ケン
類、ゞメチルアニリン、―プニルモルホリ
ン、トリメチルベンゞルアンモニりムクロリド等
のアミン類、あるいはその第アンモニりム塩類
を添加するこずもできる。そのほか必芁に応じ、
有機・無機顔料、染料等の着色剀、あるいは超埮
粒子シリカのような揺倉剀を䜿甚するこずも可胜
である。さらには、溶融シリカ、ケむ酞マグネシ
りムあるいは氎酞化アルミニりム等の粉末を、無
機充填剀ずしお添加しおもよい。 䞊蚘の副次的成分はいずれも圓該技術分野で通
垞䜿甚されるものであ぀お䜿甚目的に即し適量添
加されるものである。 本発明の組成物は、本来の意味での接着剀ずし
お䜿甚され、たた片面接着ずもいえる衚面塗垃剀
ずしお䜿甚するこずができる。組成物はデむスペ
ンサヌにより被着䜓間ぞ泚入されるか、又はスク
リヌン印刷機、ロヌルコヌト法等により被着䜓に
塗垃される。塗垃方法の遞択は被着䜓の圢状に埓
぀お行なわれる。 被着䜓ずしおは金属、プラスチツクス、ガラ
ス、セラミツクス等が含たれる。本発明の組成物
は、実際には、電気・電子郚品等のプラスチツク
ケヌスや金属ケヌスの固定、ガラス同志の接着、
電子工業におけるプリント基板の゜ルダヌレゞス
ト䞊やプリント基板䞊の郚品の固定等倚岐にわた
぀お合目的に利甚できる。 なお、塗垃された玫倖線硬化性接着性組成物に
玫倖線を照射するのに郜合のよい被着䜓の圢状又
は材質の遞定がなされるのは勿論のこずである。 玫倖線照射には、光増感剀のの掻性化に有効な
光源ずしお240〜450nmの波長の光線を䞎えるず
ころの䟋えばケミカルランプ、䞭圧・高圧氎銀
灯、キセノン氎銀灯、メタルハラむド氎銀灯等が
䜿甚される。たた、本発明の組成物が熱硬化性觊
媒を含有する堎合には、玫倖線照射埌必芁に応
じ、熱颚加熱炉、赀倖線加熱炉あるいは遠赀倖線
加熱炉䞭で40℃〜250℃、有利には80℃〜180℃に
加熱し硬化を完結させるのが有利である。 以䞋、本発明を実斜䟋によ぀お説明するずずも
に比范䟋を掲げる。 実斜䟋〜及び比范䟋〜 ゞ゚チレングリコヌル2.2モル、無氎マレむン
酞モル、無氎フタル酞モルを窒玠気流䞭190
℃で時間加熱しお䞍飜和ポリ゚ステルを埗た。
このものぱチレン性䞍飜和結合を含有し、分子
量が玄2500、酞䟡が50以䞋であ぀た。 〔〕成分ずしおこの䞍飜和ポリ゚ステル、
〔〕成分ずしお岡村補油(æ ª)補SB―20GA炭玠数
16〜20の二塩基性飜和脂肪族酞を出発原料ずしお
埗られたゞアクリレヌト、〔〕成分ずしおβ―
ヒドロキシ゚チルメタアクリレヌト、〔〕成分
ずしおプノキシ゚チルアクリレヌト、それに光
増感剀ずしおベンゟむン゚チル゚ヌテルを䞋蚘第
衚に瀺す量関係で配合しお組成物を䜜぀た。 この組成物mgをそれぞれ枚の垂販スラむド
ガラス75mm×25mm×mm間に面積が玄15mm×
25mmで、膜厚が10Όずなるように塗垃した埌、ガ
ラスを通しお玫倖線照射し光硬化させた。この際
の硬化条件は、入力80Wcmの高圧氎銀灯を150
mmの距離で照射し、照射時間は30秒であ぀た。し
かる埌、東掋枬噚(æ ª)補テンシロンUTM―1/5000
を䜿甚し、宀枩20℃、盞察湿床60、ロヌドセル
200Kg、匕匵速床毎分mmの条件䞋で詊隓を行
ない匕匵せんだん匷床を枬定した。枬定結果ず接
着性の評䟡は䞋蚘第衚に瀺すずおりであ぀た。 比范のために、前蚘〔〕〜〔〕の必須成分
の含有量が本発明の条件を満たさない組成物を䜜
り、同様に詊隓しお枬定ず評䟡を行な぀た。これ
を比范䟋〜ずしお䞋蚘第衚に䜵蚘する。
The present invention relates to an ultraviolet curable adhesive composition having a specific composition. In recent years, instead of thermosetting adhesives, the use of ultraviolet curable adhesives has been considered in the field of components that are transparent to ultraviolet rays and can be cured by irradiation with ultraviolet rays. Thermosetting adhesives usually need to be kept at high temperatures for long periods of time to cure and bond, but with UV-curable adhesives, adhesion or position fixation is achieved by irradiating UV light for seconds at room temperature. This makes it possible to significantly improve work efficiency and significantly reduce energy consumption. However, on the other hand, UV-curable adhesives have problems such as increased internal strain due to the curing reaction occurring in seconds, making it impossible to obtain sufficient adhesive strength. The inventors of the present invention have conducted intensive studies in order to obtain a highly practical adhesive composition that eliminates these problems while providing the characteristics of ultraviolet curing, and as a result, they have succeeded in developing a composition that meets the purpose. did. The present invention is as follows. An ultraviolet curable adhesive composition containing the following [A] to [D]. [A] 100 parts by weight of ethylenically unsaturated bond-containing unsaturated polyester with a molecular weight of 1,000 to 10,000 [B] The following formula [In the formula, A represents a saturated or unsaturated alkylene group having 2 to 28 carbon atoms which may have a substituent, and R represents a hydrogen atom or a methyl group. ] 30 to 100 parts by weight of di(meth)acrylate [C] 20 to 100 parts by weight of hydroxyalkyl (meth)acrylate [D] The following formula [In the formula, Ar is a phenyl group that may have a substituent, R is a hydrogen atom or a methyl group, and n is 1 to
Represents an integer of 5. ] Phenoxy derivative represented by 20 to 100 parts by weight In this specification, "(meth)acrylate" is used to mean acrylate or methacrylate. The composition of the present invention can be effectively used not only for its original adhesive use of bonding two base materials, but also for so-called one-sided adhesive use, where it is applied to the surface to protect the surface, impart gloss, impart corrosion resistance, etc. be able to. When using the composition of the present invention, adhesion is performed by ultraviolet irradiation in seconds, so workability is greatly improved, energy is saved, and adhesive strength sufficient for practical use can be obtained. Essential component [A] in the composition of the present invention
[D] will be explained. [A] Component This component is an ethylenically unsaturated bond-containing unsaturated polyester having a molecular weight of 1,000 to 10,000. This product combines unsaturated dibasic acids such as phthalic anhydride, isophthalic acid, maleic anhydride, and fumaric acid with diols such as propylene glycol, ethylene glycol, or bisphenol A, and tetrabutyl zirconate, tetraoctyl titanate, etc. It is produced by esterification in the presence of a catalyst. Usually acid number 10
~60 or so are advantageously used. As is well known, many unsaturated polyesters are commercially available in the form of solutions diluted with polymerizable monomers such as styrene. It is desirable to use it in a form that does not contain the above polymerizable monomer. [B] Component This component is expressed by the following formula (The meanings of the symbols are as described above.) It is a di(meth)acrylate represented by the following. The method for producing this product is as follows, taking as an example the case where diacrylate is obtained using succinic acid as a dibasic aliphatic acid as a starting material. Examples of dibasic aliphatic acids include saturated acids such as succinic acid, glutaric acid, adipic acid, dimethyladipic acid, suberic acid, ethylpropylglutaric acid, and brassylic acid (tridecanedioic acid), as well as heptenedioic acid and dimethyloctenedioic acid. Unsaturated acids such as , undecanedioic acid, pentadecanedioic acid, etc. are used. Among these, it is generally advantageous to use saturated or unsaturated acids having 10 to 30 carbon atoms. In this case, the number of carbon atoms in the alkylene group of A in the above formula of the obtained component [B] will be 8 to 28. Although dibasic aliphatic acids of this type can be used as single compounds, it is advantageous to use them in the form of mixtures. As a mixture,
For example, there is an aliphatic acid mixture obtained by reacting cyclohexanone with Fenton's reagent, and this mixture is commercially available. [C] Component This component is a hydroxyalkyl (meth)acrylate, which is produced, for example, from acrylic acid or methacrylic acid and ethylene oxide or propylene oxide. Specifically, β
-Hydroxyethyl (meth)acrylate, β-
Examples include hydroxypropyl (meth)acrylate. [D] Component This component is expressed by the following formula (The meanings of the symbols are as above) A phenoxy derivative represented by
Each of these may be used alone, or a mixture thereof may be used. This product is produced by dehydration condensation of a polyethylene oxide derivative of the following formula ArO(CH 2 CH 2 O) o H and acrylic acid or methacrylic acid. The components [A] to [D] are essential to the composition of the present invention. In other words, unsaturated polyester [A] is a resin that is solid or highly viscous at room temperature, and it must be diluted to reduce the viscosity to a level suitable for handling. It must be able to do this without impairing the adhesive properties inherent to unsaturated polyester. Among various compounds having ethylenically unsaturated bonds, hydroxyalkyl (meth)acrylates [C] and phenoxy derivatives [D] are particularly selected as diluents suitable for this purpose. However, [A], [C],
[D] The cured product obtained from the three-component composition is generally brittle and does not necessarily have sufficient adhesive properties. Therefore, di(meth)acrylate [B] was further added, and as a result, the adhesiveness was greatly improved, and [A]
The ultraviolet curable composition of the present invention containing component ~[D] can exhibit excellent adhesive properties. Regarding the content of the composition of the present invention, the di(meth)acrylate [B] is 30 to 100 parts by weight per 100 parts by weight of the unsaturated polyester [A]. [B]
If the amount of ingredients is less than 30 parts by weight, the adhesiveness will decrease,
If it exceeds 100 parts by weight, the hardness of the cured product will decrease significantly. Hydroxyalkyl (meth)acrylate [C] and phenoxy derivative [D] are each
20 to 100 parts by weight. If [C] or [D] is less than 20 parts by weight, the diluting effect on the unsaturated polyester will not be sufficiently exhibited and the viscosity of the composition will be too high, resulting in poor workability and poor wetting with the substrate. Poor adhesion results. If it exceeds 10 parts by weight, the dilution becomes excessive and the crosslinking density in the cured product decreases, resulting in a decrease in ultraviolet curability and adhesive strength. The relative amount ratio of hydroxyalkyl (meth)acrylate [C] and phenoxy derivative [D] is:
[C]/[D]=1/0.3 to 1/3 is advantageous. The composition of the present invention may contain other substances as described below, if desired. In order to adjust the viscosity or leveling property, 2-
Ethylhexyl acrylate, tetrahydrofurfuryl acrylate, α-methylstyrene, N-
Low viscosity monofunctional monomers having one ethylenically unsaturated bond such as vinylpyrrolidone are used to increase the curing speed or strength of the cured product. A polyfunctional monomer having multiple ethylenically unsaturated bonds such as pentaerythritol hexaacrylate can be mixed. These monofunctional monomers or polyfunctional monomers can be added to the total weight of the composition consisting of the essential components.
It is desirable to contain within 10 parts of each. It is advantageous to add to the compositions of the invention photosensitizers effective for accelerating UV curing of compounds containing ethylenically unsaturated bonds. For this purpose, ketones such as benzophenone, benzyl, Michler's ketone, benzoins such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether,
Quinones such as naphthoquinone, 2-tert-butylanthraquinone and acenaphthenequinone, and heterocyclic compounds such as xanthone, thioxanthone and 2-chlorothioxanthone can be used. Further, when ultraviolet irradiation and heating are used together in using the composition, it is preferable to add a thermosetting catalyst to the composition. As such a catalyst, a usual radical initiator is used, and specifically, ketone peroxides such as methyl ethyl ketone peroxide and cyclohexanone peroxide, diacyl peroxides such as acetyl peroxide and benzoyl peroxide, and tert-butyl hydroperoxide are used. oxide, hydroperoxides such as cumene hydroperoxide, di-tert-butyl peroxide,
Dialkyl peroxides such as dicumyl peroxide, alkyl peresters such as tert-butyl peracetate and tert-butyl perbenzoate, diisopropyl peroxide carbonate,
Examples include percarbonates such as bis(4-tert-butylcyclohexyl) peroxydicarbonate, azobisisobutyronitrile, and the like. In addition, it is advantageous to add a small amount of a thermal polymerization inhibitor to prevent the composition of the present invention from thermally curing during storage. This small amount of thermal polymerization inhibitor does not substantially inhibit curing by heating after irradiation with ultraviolet rays. Typical examples of such thermal polymerization inhibitors include hydroquinone, hydroquinone monomethyl ether,
Examples include phenothiazine and cuperone. Furthermore, in the composition of the present invention containing a thermosetting catalyst, an organic acid metal salt (metal soap) such as cobalt naphthenate, cobalt octenoate, manganese naphthenate, manganese octenoate, etc. is added as a curing accelerator.
It is also possible to add amines such as dimethylaniline, N-phenylmorpholine, trimethylbenzylammonium chloride, or quaternary ammonium salts thereof. In addition, as necessary,
It is also possible to use colorants such as organic/inorganic pigments and dyes, or thixotropic agents such as ultrafine silica. Furthermore, powders such as fused silica, magnesium silicate, or aluminum hydroxide may be added as inorganic fillers. All of the above-mentioned subsidiary components are commonly used in the technical field and are added in appropriate amounts depending on the purpose of use. The composition of the present invention can be used as an adhesive in its original sense, and can also be used as a surface coating agent, which can be referred to as one-sided adhesive. The composition is injected between adherends using a dispenser, or applied to adherends using a screen printing machine, roll coating method, or the like. The selection of the coating method is made according to the shape of the adherend. Examples of adherends include metals, plastics, glass, ceramics, and the like. The composition of the present invention is actually useful for fixing plastic cases and metal cases of electrical and electronic parts, adhering glass to glass, etc.
It can be used for a wide variety of purposes, such as fixing parts on solder resists of printed circuit boards and on printed circuit boards in the electronics industry. It goes without saying that the shape or material of the adherend is selected to be convenient for irradiating the applied ultraviolet curable adhesive composition with ultraviolet rays. For the ultraviolet irradiation, a chemical lamp, a medium-pressure/high-pressure mercury lamp, a xenon mercury lamp, a metal halide mercury lamp, etc., which provide light rays with a wavelength of 240 to 450 nm, are used as a light source effective for activating the photosensitizer. In addition, when the composition of the present invention contains a thermosetting catalyst, after irradiation with ultraviolet rays, if necessary, the composition may be placed in a hot air heating furnace, an infrared heating furnace, or a far infrared heating furnace at 40°C to 250°C, preferably at 80°C. It is advantageous to heat to between 180°C and 180°C to complete the curing. Hereinafter, the present invention will be explained with reference to examples, and comparative examples will be listed. Examples 1 to 3 and Comparative Examples 1 to 6 2.2 mol of diethylene glycol, 1 mol of maleic anhydride, and 1 mol of phthalic anhydride in a nitrogen stream at 190%
The mixture was heated at ℃ for 5 hours to obtain an unsaturated polyester.
This product contained ethylenically unsaturated bonds, had a molecular weight of about 2,500, and an acid value of 50 or less. [A] This unsaturated polyester as the component,
[B] Component: SB-20GA manufactured by Okamura Oil Co., Ltd. (carbon number
diacrylate obtained using 16 to 20 dibasic saturated aliphatic acids as starting materials, β- as the [C] component
A composition was prepared by blending hydroxyethyl methacrylate, phenoxyethyl acrylate as component [D], and benzoin ethyl ether as a photosensitizer in the amounts shown in Table 1 below. 4 mg of this composition was placed between two commercially available slide glasses (75 mm x 25 mm x 1 mm) with an area of approximately 15 mm x
After coating the film to a thickness of 25 mm and 10 Όm, it was photocured by irradiating it with ultraviolet light through glass. The curing conditions at this time were to use a high pressure mercury lamp with an input of 80W/cm at 150°C.
Irradiation was performed at a distance of mm, and the irradiation time was 30 seconds. After that, Tensilon UTM made by Toyo Sokki Co., Ltd. - 1/5000
using a room temperature of 20℃, relative humidity of 60%, and a load cell.
The test was conducted under the conditions of 200 KgW and a tensile speed of 2 mm/min to measure the tensile shear strength. The measurement results and adhesive evaluation were as shown in Table 1 below. For comparison, compositions were prepared in which the contents of the essential components [A] to [D] did not satisfy the conditions of the present invention, and were similarly tested for measurement and evaluation. These are also listed in Table 1 below as Comparative Examples 1 to 6.

【衚】 実斜䟋〜及び比范䟋〜12 〔〕成分ずしお日本ナピカ(æ ª)補ナピカ8554
䞍飜和ポリ゚ステル、分子量玄2500、〔〕成
分ずしお岡村補油(æ ª)補ULB―20GA炭玠数16〜
20の二塩基性䞍飜和脂肪族酞を出発原料ずしお埗
られたゞアクリレヌト、〔〕成分ずしおβ―ヒ
ドロキシプロピルアクリレヌト、〔〕成分ずし
おプノキシ゚チルメタアクリレヌト、それに堎
合により硬化速床促進剀ずしお―ヘキサン
ゞオヌルゞアクリレヌトを䞋蚘第衚に瀺す量関
係で配合しお組成物(ã‚€)を䜜぀た。 この組成物(ã‚€)100重量郚に察し、さらに光増感
剀ずしおベンゟむンむ゜プロピル゚ヌテル重量
郚、熱重合犁止剀ずしおヒドロキノンモノメチル
゚ヌテル0.05重量郚、無機充填剀ずしお平均粒埄
1.5Όの埮粉末シリカ50重量郚、熱硬化觊媒ずしお
tert―ブチルパヌベンゟ゚ヌト重量郚を加え、
攪拌しお均䞀に混合しお組成物(ロ)を䜜぀た。 この熱硬化觊媒等配合組成物(ロ)を甚いお、次に
述べるようにしおプリント配線板䞊にチツプ郚品
を接着し接着匷床剥離匷床を枬定した。 スクリヌン印刷法によりプリント配線板の゜ル
ダヌレゞスト䞊に点圓りの塗垃量がmgであ
り、か぀、盎埄がmmの円状になるように䞊蚘玫
倖線硬化性接着性組成物(ロ)を塗垃し、この䞭倮郚
に1/4タむプのMELF型チツプ抵抗䜓をのせ
た。しかる埌、入力80Wcmの高圧氎銀灯䞋200
mmの距離にお玄20秒間玫倖線照射した埌、盎ちに
150℃の雰囲気䞭10分間加熱するこずによりプリ
ント配線板䞊にチツプ抵抗䜓を接着した。チツプ
抵抗䜓接着枈みのプリント配線板を宀枩たで攟冷
した埌䌞びのない玐を介しバネ秀を甚いおプリン
ト配線板ず平行で、か぀、䞊蚘チツプ抵抗䜓の長
軞ず盎角ずなる方向に匕匵り、チツプ抵抗䜓が剥
離する際の匷床を枬定した。枬定結果ず接着性の
評䟡は䞋蚘第衚に瀺すずおりであ぀た。 比范のために、前蚘〔〕〜〔〕の必須成分
の含有量が本発明の条件を満たさない組成物(ロ)を
䜜り、前蚘ず同様に詊隓しお枬定ず評䟡を行な぀
た。これを比范䟋〜12ずしお䞋蚘第衚に䜵蚘
する。
[Table] Examples 4 to 6 and Comparative Examples 7 to 12 [A] As the component, U-Pica 8554 manufactured by Nippon U-Pica Co., Ltd.
(unsaturated polyester, molecular weight approximately 2500), ULB-20GA manufactured by Okamura Oil Co., Ltd. (carbon number 16 ~
20 dibasic unsaturated aliphatic acids as starting materials), β-hydroxypropyl acrylate as the [C] component, phenoxyethyl methacrylate as the [D] component, and optionally accelerator of curing speed. A composition (a) was prepared by blending 1,6-hexanediol diacrylate as an agent in the amounts shown in Table 2 below. To 100 parts by weight of this composition (a), 5 parts by weight of benzoin isopropyl ether as a photosensitizer, 0.05 parts by weight of hydroquinone monomethyl ether as a thermal polymerization inhibitor, and average particle size as an inorganic filler.
50 parts by weight of 1.5Ό fine powder silica as a thermosetting catalyst
Add 3 parts by weight of tert-butyl perbenzoate,
A composition (b) was prepared by stirring to mix uniformly. Using this composition containing thermosetting catalyst, etc. (b), chip parts were adhered to a printed wiring board as described below, and the adhesive strength (peel strength) was measured. Applying the above ultraviolet curable adhesive composition (b) on the solder resist of a printed wiring board using a screen printing method so that the coating amount per point is 2 mg and the diameter is 2 mm, A 1/4W type MELF chip resistor was placed in the center of this. After that, under a high-pressure mercury lamp with an input of 80W/cm,
Immediately after irradiating ultraviolet light for about 20 seconds at a distance of mm.
The chip resistor was bonded onto the printed wiring board by heating in an atmosphere at 150°C for 10 minutes. After the printed wiring board to which the chip resistor has been bonded is left to cool to room temperature, it is pulled using a spring scale using a non-stretchable string in a direction parallel to the printed wiring board and perpendicular to the long axis of the chip resistor. , the strength when the chip resistor was peeled off was measured. The measurement results and adhesive evaluation were as shown in Table 2 below. For comparison, a composition (b) in which the contents of the essential components [A] to [D] did not satisfy the conditions of the present invention was prepared and tested in the same manner as above for measurement and evaluation. These are also listed in Table 2 below as Comparative Examples 7 to 12.

【衚】 実斜䟋〜及び比范䟋13〜18 〔〕成分ずしお花王(æ ª)補ニナヌトラツク
410S、〔〕成分ずしお岡村補(æ ª)補SB―20GA、
〔〕成分ずしおβ―ヒドロキシプロピルメタク
リレヌト、〔〕成分ずしお共栄瀟油脂化孊工業
(æ ª)補ラむト゚ステル―200Aのそれぞれを䞋蚘
第衚に瀺す量関係で配合しお組成物(ハ)を䜜぀
た。 なお、プノキシ誘導䜓である前瀺〔〕成分
のラむト゚ステル―200Aは、混合物であ぀お、
〔〕成分の匏䞭がのもの重量、が
のもの重量、がのもの25重量、が
のもの45重量、がのもの18重量の比率で
含んでいる。 この組成物(ハ)100重量郚に察し、実斜䟋〜
で瀺した組成物(ã‚€)に加えたものず同䞀の他の成分
を加えお組成物(ニ)を䜜り、実斜䟋〜ず同䞀の
方法でチツプ郚品に察する接着性の評䟡を行な぀
た。結果を䞋蚘第衚に瀺す。 比范のために、前蚘〔〕〜〔〕の必須成分
が本発明の条件を満たさない組成物(ニ)を䜜り、前
蚘ず同様にしお評䟡を行ない、これを比范䟋13〜
18ずしお䞋蚘第衚に䜵蚘する。
[Table] Examples 7 to 9 and Comparative Examples 13 to 18 [A] New track manufactured by Kao Corporation as the component
410S, SB-20GA manufactured by Okamura Co., Ltd. as the [B] component,
[C] β-Hydroxypropyl methacrylate as the component, Kyoeisha Yushi Kagaku Kogyo as the [D] component
A composition (c) was prepared by blending each of Lightester P-200A manufactured by Co., Ltd. in the amounts shown in Table 3 below. Incidentally, the light ester P-200A of the component [D] shown above, which is a phenoxy derivative, is a mixture, and
[D] 3% by weight of component where n is 5, n is 4
9% by weight of those with n = 3, 25% by weight of those with n = 2
It contains 45% by weight of those with n=1 and 18% by weight of those with n=1. Examples 4 to 6 with respect to 100 parts by weight of this composition (c)
A composition (d) was prepared by adding the same other ingredients as those added to the composition (a) shown in (a), and the adhesion to chip parts was evaluated in the same manner as in Examples 4 to 6. . The results are shown in Table 3 below. For comparison, a composition (d) in which the essential components of [A] to [D] do not satisfy the conditions of the present invention was prepared and evaluated in the same manner as above, and this was compared to Comparative Examples 13 to 13.
18 and is also listed in Table 3 below.

【衚】 以䞊の各衚によれば、実斜䟋のものが比范䟋の
ものより玫倖線照射した堎合のガラスに察する接
着性及びプリント配線板ぞのチツプ郚品の接着性
においお優れおおり、本発明の組成物が秒単䜍の
玫倖線照射により十分実甚性のある優れた接着匷
床を瀺すこずがわかる。
[Table] According to the above tables, the products of Examples are superior to those of Comparative Examples in terms of adhesion to glass when irradiated with ultraviolet rays and adhesion of chip parts to printed wiring boards. It can be seen that the material exhibits excellent adhesion strength sufficient for practical use by ultraviolet irradiation for seconds.

Claims (1)

【特蚱請求の範囲】  䞋蚘〔〕〜〔〕を含有する玫倖線硬化性
接着性組成物。 〔〕 分子量1000〜10000の゚チレン性䞍飜和
結合含有䞍飜和ポリ゚ステル 100重量郹 〔〕 䞋匏 〔匏䞭は眮換基を有しおいおもよい炭玠数
〜28の飜和又は䞍飜和アルキレン基、は氎
玠原子又はメチル基を衚わす。〕 で瀺されるゞメタアクリレヌト 30〜100重量郹 〔〕 ヒドロキシアルキルメタアクリレヌ
ト 20〜100重量郹 〔〕 䞋匏 〔匏䞭Arは眮換基を有しおいおもよいプ
ニル基、は氎玠原子又はメチル基、は〜
の敎数を衚わす。〕 で瀺されるプノキシ誘導䜓 20〜100重量郹
[Scope of Claims] 1. An ultraviolet curable adhesive composition containing the following [A] to [D]. [A] 100 parts by weight of ethylenically unsaturated bond-containing unsaturated polyester with a molecular weight of 1,000 to 10,000 [B] The following formula [In the formula, A represents a saturated or unsaturated alkylene group having 2 to 28 carbon atoms which may have a substituent, and R represents a hydrogen atom or a methyl group. ] 30 to 100 parts by weight of di(meth)acrylate [C] 20 to 100 parts by weight of hydroxyalkyl (meth)acrylate [D] The following formula [In the formula, Ar is a phenyl group that may have a substituent, R is a hydrogen atom or a methyl group, and n is 1 to
Represents an integer of 5. ] Phenoxy derivative represented by 20 to 100 parts by weight
JP19879881A 1981-12-10 1981-12-10 Ultraviloet-curable adhesive composition Granted JPS58101107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19879881A JPS58101107A (en) 1981-12-10 1981-12-10 Ultraviloet-curable adhesive composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19879881A JPS58101107A (en) 1981-12-10 1981-12-10 Ultraviloet-curable adhesive composition

Publications (2)

Publication Number Publication Date
JPS58101107A JPS58101107A (en) 1983-06-16
JPS6342925B2 true JPS6342925B2 (en) 1988-08-26

Family

ID=16397077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19879881A Granted JPS58101107A (en) 1981-12-10 1981-12-10 Ultraviloet-curable adhesive composition

Country Status (1)

Country Link
JP (1) JPS58101107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461972B2 (en) * 1987-08-07 1992-10-02 Hiroshi Teramachi

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4147468B2 (en) * 2002-12-24 2008-09-10 株匏䌚瀟 Resin composition
DE102005024381A1 (en) * 2005-05-27 2006-11-30 Basf Coatings Ag Coating material, process for its preparation and its use for the production of adhesive, color and / or effect coatings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461972B2 (en) * 1987-08-07 1992-10-02 Hiroshi Teramachi

Also Published As

Publication number Publication date
JPS58101107A (en) 1983-06-16

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