JPH0873565A - Resin composition and resin composition for prepreg - Google Patents

Resin composition and resin composition for prepreg

Info

Publication number
JPH0873565A
JPH0873565A JP21300194A JP21300194A JPH0873565A JP H0873565 A JPH0873565 A JP H0873565A JP 21300194 A JP21300194 A JP 21300194A JP 21300194 A JP21300194 A JP 21300194A JP H0873565 A JPH0873565 A JP H0873565A
Authority
JP
Japan
Prior art keywords
prepreg
epoxy resin
resin composition
heat
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.)
Granted
Application number
JP21300194A
Other languages
Japanese (ja)
Other versions
JP3308403B2 (en
Inventor
Takeshi Hozumi
猛 八月朔日
Sei Nakamichi
聖 中道
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.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
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 Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP21300194A priority Critical patent/JP3308403B2/en
Publication of JPH0873565A publication Critical patent/JPH0873565A/en
Application granted granted Critical
Publication of JP3308403B2 publication Critical patent/JP3308403B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a resin composition which has excellent properties for prepregs and can give a laminate by mixing a normally solid epoxy resin with an epoxy resin curing agent, a specified diluent and a photopolymerization initiator. CONSTITUTION: This composition comprises a normally solid epoxy resin (desirably of a molecular weight of 500 or above), an epoxy resin curing agent, a diluent comprising a photopolymerizable and heat-polymerizable monomer [e.g. desirably one comprising a photopolymerizable and heat-polymerizable monomer having at least one (meth)acryloyl group and at least one glycidyl group in the molecule] and a photopolymerization initiator. This composition can be infiltrated into a fibrous material without leaving any bubbles in the material, the impregnated material can be converted into a prepreg simply by irradiation with an actinic radiation, and the obtained prepreg can be made tack-free without any thermal curing reaction. Therefore, this prepreg is flexible, does not form rein dust, is capable of being wound around e.g. a roll and is very clean.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、特にプリプレグとして
有用な樹脂組成物に関する。
TECHNICAL FIELD The present invention relates to a resin composition particularly useful as a prepreg.

【0002】[0002]

【従来の技術】従来、繊維質基材を用いて複合材料を製
造する場合、エポキシ樹脂、フェノール樹脂等の熱硬化
性樹脂組成物を溶剤で希釈し、その樹脂組成物を繊維質
基材に含浸させ、プリプレグを作製し、その後かかるプ
リプレグを積層し熱硬化する製法が一般に知られてい
る。また、プリプレグ作製時の経済性と低公害化とのた
めに樹脂組成物の無溶剤化が望まれており、無溶剤型液
状熱硬化性樹脂組成物、または、液状活性エネルギー線
硬化性樹脂組成物を用いた製法も開発されている。
2. Description of the Related Art Conventionally, when a composite material is manufactured using a fibrous base material, a thermosetting resin composition such as an epoxy resin or a phenol resin is diluted with a solvent, and the resin composition is used as a fibrous base material. A manufacturing method is generally known in which impregnation is performed to produce a prepreg, and then the prepreg is laminated and thermoset. Further, a solvent-free liquid thermosetting resin composition or a liquid active energy ray-curable resin composition is desired for the resin composition for the sake of economy and low pollution at the time of producing a prepreg. The manufacturing method using the thing is also developed.

【0003】[0003]

【発明が解決しようとする課題】上記の一般的製法は、
プリプレグの作製時に熱による乾燥・Bステージ化を行
なう必要があり、そのためコストが高い、生産性が悪
い、Bステージ化のコントロールが難しい等の問題点を
有している。また、無溶剤型液状熱硬化性樹脂組成物に
おいても乾燥工程は省けるものの、Bステージ化の問題
点は解決されず、さらに、繊維質基材への樹脂含浸が難
しいため、基材に多くの気泡を内在するという問題が生
じる。これらの問題点を解決する方法として、液状活性
エネルギー線硬化性樹脂組成物を用いた製法が有効であ
ると考えられるが、活性エネルギー線硬化性樹脂として
アクリル系のモノマーまたはオリゴマーを用いてプリプ
レグ化を行なった場合は、酸素による重合阻害を受け安
く、硬化物の耐熱性、耐薬品性が劣るという欠点を有す
る。
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Since there is a need to perform heat drying and B-stage formation at the time of producing the prepreg, there are problems such as high cost, poor productivity, and difficulty in controlling B-stage formation. Further, even in the solventless liquid thermosetting resin composition, the drying step can be omitted, but the problem of B stage formation is not solved, and furthermore, since the resin impregnation into the fibrous base material is difficult, many base materials are used. The problem arises of the inclusion of bubbles. As a method for solving these problems, it is considered that a production method using a liquid active energy ray-curable resin composition is effective, but prepreg formation is performed by using an acrylic monomer or oligomer as the active energy ray-curable resin. In the case of carrying out, there is a drawback that the polymerization is less likely to be inhibited by oxygen and the cured product is inferior in heat resistance and chemical resistance.

【0004】更に、液状活性エネルギー線硬化性樹脂と
エポキシ樹脂等の熱硬化性樹脂とを配合した組成物につ
いても検討されたが、活性エネルギーと熱によりそれぞ
れの樹脂が別々に硬化するので、活性エネルギー硬化性
樹脂の欠点が十分解消されない。従って、本発明の目的
とするところは、実質的に無溶剤系であり、繊維質基材
へ気泡を残すことなく含浸することができ、活性エネル
ギー線照射により簡単に固形でタックフリー化できる、
低コストで生産性の良いプリプレグ用樹脂組成物を提供
するところにある。しかも、その後加熱硬化させた硬化
物は、耐熱性、耐薬品性等に優れている。
Further, a composition in which a liquid active energy ray-curable resin and a thermosetting resin such as an epoxy resin are blended has also been examined. However, since each resin is separately cured by active energy and heat, the composition is activated. The drawbacks of the energy curable resin cannot be solved sufficiently. Therefore, the object of the present invention is a substantially solvent-free system, it can be impregnated into the fibrous substrate without leaving bubbles, can be easily solid and tack-free by irradiation with active energy rays,
An object of the present invention is to provide a resin composition for a prepreg that is low in cost and excellent in productivity. Moreover, the cured product that is subsequently heat-cured has excellent heat resistance, chemical resistance, and the like.

【0005】[0005]

【課題を解決するための手段】上記の目的を達成するた
めに、本発明による樹脂組成物及びプリプレグ用樹脂組
成物は、下記の組成を有し、プリプレグとしての優れた
特性と、このプリプレグ用樹脂組成物を用いた積層板を
製造し得ることを性能上の特長とするものである。
In order to achieve the above object, the resin composition and the resin composition for prepreg according to the present invention have the following composition and have excellent properties as a prepreg and It is a feature in terms of performance that a laminated board using the resin composition can be produced.

【0006】即ち、本発明は下記の成分(イ)、
(ロ)、(ハ)及び(ニ)からなることを特徴とする樹
脂組成物及びプリプレグ用樹脂組成物に関するものであ
る。 (イ)常温で固形状態にあるエポキシ樹脂、(ロ)エポ
キシ樹脂硬化剤、(ハ)光重合性及び熱反応性モノマー
からなる希釈剤、(ニ)光重合開始剤。
That is, the present invention comprises the following components (a),
The present invention relates to a resin composition and a resin composition for a prepreg, which are composed of (b), (c) and (d). (A) Epoxy resin in a solid state at room temperature, (b) epoxy resin curing agent, (c) diluent composed of photopolymerizable and heat-reactive monomer, and (d) photopolymerization initiator.

【0007】本発明に用いられる(イ)の常温で固形状
態のエポキシ樹脂は、ビスフェノール型エポキシ樹脂、
ノボラック型エポキシ樹脂、または、これらの混合物で
あり、常温で固形状のものである。融点は、通常、50
〜100℃の範囲にあれば良い。ビスフェノール型エポ
キシ樹脂としては、ビスフェノールA型またはF型等が
使用され、特にビスフェノールA型のものが好ましい。
ノボラック型エポキシ樹脂としては、フェノールノボラ
ック型やクレゾールノボラック型等が使用され、特にク
レゾールノボラック型のものの使用が好ましい。
The epoxy resin (a) used in the present invention in a solid state at room temperature is a bisphenol type epoxy resin,
It is a novolac type epoxy resin or a mixture thereof, which is solid at room temperature. The melting point is usually 50
It may be in the range of -100 ° C. As the bisphenol type epoxy resin, bisphenol A type or F type is used, and bisphenol A type is particularly preferable.
As the novolac type epoxy resin, a phenol novolac type, a cresol novolac type or the like is used, and a cresol novolac type is particularly preferable.

【0008】(ロ)エポキシ樹脂硬化剤としては、一般
に用いられる各種硬化剤が使用できる。例えば、4,
4’−ジアミノフェニルメタン、4,4’−ジアミノジ
フェニルスルホン、m−フェニレンジアミン、p−フェ
ニレンジアミン等の芳香族ジアミン、ジエチレントリア
ミン、トリエチレンテトラミン、テトラエチレンペンタ
ミン、ヘキサメチレントリアミン、メンセンジアミン、
イソホロンジアミン等の脂肪族ポリアミン、イミダゾー
ル、2−エチル−4−メチルイミダゾール、2−フェニ
ルイミダゾール、1−ベンジル−2−メチルイミダゾー
ル、2−ウンデシルイミダゾール等のイミダゾール類、
無水フタル酸、無水テトラヒドロフタル酸、無水ヘキサ
ヒドロフタル酸、無水トリメリット酸、無水ピロメリッ
ト酸、無水ベンゾフェノンテトラカルボン酸等の酸無水
物、三フッ化ホウ素のアミン錯体、ジシアンジアミド又
はその誘導体などが挙げられ、これらをエポキシアダク
ト化したものやマイクロカプセル化したものも使用でき
る。
As the (b) epoxy resin curing agent, various commonly used curing agents can be used. For example, 4,
Aromatic diamines such as 4'-diaminophenylmethane, 4,4'-diaminodiphenylsulfone, m-phenylenediamine, p-phenylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, hexamethylenetriamine, mensendiamine,
Aliphatic polyamines such as isophoronediamine, imidazoles such as imidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 1-benzyl-2-methylimidazole, 2-undecylimidazole,
Acid anhydrides such as phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, trimellitic anhydride, pyromellitic anhydride, benzophenonetetracarboxylic acid anhydride, amine complexes of boron trifluoride, dicyandiamide or its derivatives Examples thereof include epoxy adducts and microencapsulated products thereof.

【0009】また、本発明においては、必要に応じてエ
ポキシ樹脂の硬化促進剤を添加しても良い。硬化促進剤
としては、一般に用いられる各種硬化促進剤が使用で
き、例えば、トリブチルアミン、ベンジルメチルアミ
ン、2,4,6−トリス(ジメチルアミノメチル)フェ
ノール等の第三級アミン類、2−エチル−4−メチルイ
ミダゾール、N−ベンジルイミダゾール等のイミダゾー
ル類、尿素類、ホスフィン類、金属塩類等が挙げられ、
これらは単独で使用しても2種以上を併用しても良い。
エポキシ樹脂硬化剤量としては、硬化剤の種類によって
異なるが、通常グリシジル基に対して0.1〜1.0当
量である。
Further, in the present invention, a curing accelerator for the epoxy resin may be added if necessary. As the curing accelerator, various commonly used curing accelerators can be used, and examples thereof include tertiary amines such as tributylamine, benzylmethylamine, 2,4,6-tris (dimethylaminomethyl) phenol, and 2-ethyl. Imidazoles such as -4-methylimidazole and N-benzylimidazole, ureas, phosphines, metal salts and the like,
These may be used alone or in combination of two or more.
The amount of the epoxy resin curing agent varies depending on the type of the curing agent, but is usually 0.1 to 1.0 equivalent with respect to the glycidyl group.

【0010】(ハ)光重合及び熱反応性モノマーからな
る希釈剤としては、1分子中に少なくとも1個の水酸基
を有するアクリレート又はメタクリレート化合物、例え
ば、ヒドロキシエチルアクリレート、ヒドロキシエチル
メタクリレート、ヒドロキシプロピルアクリレート、ヒ
ドロキシプロピルメタクリレート、ヒドロキシブチルア
クリレート、ヒドロキシブチルメタクリレート、ブタン
ジオールモノアクリレート、グリセロールメタクリレー
ト、フェノキシヒドロキシプロピルアクリレート、ポリ
エチレングリコールアクリレート、ポリエチレングリコ
ールメタクリレート、又はグリセロールジメタクリレー
ト等である。または、1分子中に1個以上のグリシジル
基を有するグリシジルアクリレート、グリシジルメタク
リレート等の光重合性モノマーが用いられる。好ましい
モノマーとしては、活性エネルギー線照射による固形タ
ックフリー化後、熱硬化可能なグリシジルアクリレー
ト、グリシジルメタクリレートである。通常、(ハ)成
分である希釈剤の量としては、(イ)成分のエポキシ樹
脂100重量部に対し、20〜100重量部、好ましく
は30〜70重量部の割合である。
(C) As a diluent comprising a photopolymerizable and heat-reactive monomer, an acrylate or methacrylate compound having at least one hydroxyl group in one molecule, such as hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, Hydroxypropyl methacrylate, hydroxybutyl acrylate, hydroxybutyl methacrylate, butanediol monoacrylate, glycerol methacrylate, phenoxy hydroxypropyl acrylate, polyethylene glycol acrylate, polyethylene glycol methacrylate, glycerol dimethacrylate and the like. Alternatively, a photopolymerizable monomer such as glycidyl acrylate or glycidyl methacrylate having one or more glycidyl groups in one molecule is used. Preferable monomers are glycidyl acrylate and glycidyl methacrylate, which are heat-curable after solid tack-free by irradiation with active energy rays. Usually, the amount of the diluent as the component (c) is 20 to 100 parts by weight, preferably 30 to 70 parts by weight, relative to 100 parts by weight of the epoxy resin as the component (a).

【0011】(ニ)光重合開始剤としては、ベンゾフェ
ノン、ベンゾイル安息香酸、4−フェニルベンゾフェノ
ン、ヒドロキシベンゾフェノンなどのベンゾフェノン
類、ベンゾイン、ベンゾインエチルエーテル、ベンゾイ
ンイソプロピルエーテル、ベンゾインブチルエーテル、
ベンゾインイソブチルエーテルなどのベンゾインアルキ
ルエーテル類、4―フェノキシジクロロアセトフェノ
ン、4−t−ブチル−ジクロロアセトフェノン、4−t
−ブチル−トリクロロアセトフェノン、ジエトキシアセ
トフェノンなどのアセトフェノン類、チオキサンソン、
2-クロルチオキサンソン、2−メチルチオキサンソン、
2,4−ジメチルチオキサンソンなどのチオキサンソン
類、エチルアントラキノン、ブチルアントラキノンなど
のアルキルアントラキノン類などを挙げることができ
る。これらは単独、あるいは2種以上の混合物として用
いられる。この光重合開始剤の添加量は、(ハ)光重合
及び熱反応性モノマーに対して通常 0.1〜10重量%
の範囲で用いられる。
(D) As the photopolymerization initiator, benzophenone, benzoylbenzoic acid, benzophenones such as 4-phenylbenzophenone and hydroxybenzophenone, benzoin, benzoin ethyl ether, benzoin isopropyl ether, benzoin butyl ether,
Benzoin alkyl ethers such as benzoin isobutyl ether, 4-phenoxydichloroacetophenone, 4-t-butyl-dichloroacetophenone, 4-t
-Butyl-trichloroacetophenone, acetophenones such as diethoxyacetophenone, thioxanthone,
2-chlorothioxanthone, 2-methylthioxanthone,
Examples thereof include thioxanthones such as 2,4-dimethylthioxanthone and alkylanthraquinones such as ethylanthraquinone and butylanthraquinone. These may be used alone or as a mixture of two or more kinds. The addition amount of this photopolymerization initiator is usually 0.1 to 10% by weight based on (c) photopolymerization and heat-reactive monomer.
Used in the range of.

【0012】その他、本発明のプリプレグ用樹脂組成物
には必要に応じて、保存安定性のために紫外線防止剤、
熱重合防止剤、可塑剤などが添加できる。また、粘度調
整のためにアクリレートモノマー、メタクリレートモノ
マー、ビニルモノマーなどを添加してもよい。
In addition, if necessary, the resin composition for prepreg of the present invention may contain an ultraviolet protective agent for storage stability,
A thermal polymerization inhibitor, a plasticizer, etc. can be added. Further, an acrylate monomer, a methacrylate monomer, a vinyl monomer or the like may be added to adjust the viscosity.

【0013】これらの成分からなる本発明のプリプレグ
用樹脂組成物は、実質的に無溶剤系でありながら、繊維
質基材へ気泡を残すことなく含浸し、活性エネルギー線
照射により簡単に固形タックフリー化するため、低コス
トで生産性良くプリプレグを作製できる。
The resin composition for prepreg of the present invention comprising these components is a substantially solvent-free system, but impregnates a fibrous base material without leaving bubbles, and can be easily solid-tacked by irradiation with active energy rays. Since it is free, a prepreg can be manufactured at low cost and with good productivity.

【0014】特に、熱により乾燥・Bステージ化を行な
いプリプレグを作製する工程において、活性エネルギー
線照射のみでプリプレグ化が可能になることについて
は、本発明の特徴である成分(イ)の常温で固形状態に
あるエポキシ樹脂と成分(ハ)の光重合及び熱反応性モ
ノマーからなる希釈剤とを用いることによる。
In particular, in the step of producing a prepreg by performing drying and B-stage formation by heat, it becomes possible to form a prepreg only by activating the active energy ray at room temperature of the component (a) which is a feature of the present invention. By using an epoxy resin in a solid state and a diluent composed of the photopolymerization and thermoreactive monomer of the component (c).

【0015】調製された本発明樹脂組成物中の成分
(ハ)は、まず溶剤として作用し、成分(イ)及びその
他の成分を溶解して繊維質基材へ塗布・含浸可能なワニ
ス状態にしている。これに、活性エネルギー線を照射し
て成分(ハ)を重合させると、成分(ハ)は固形化に伴
い溶剤としての効果を失うため成分(イ)が析出する。
このとき、硬化した成分(ハ)及びその他の成分は固形
成分(イ)中に分散される。従って、常温で適度なタッ
クフリー固形状態にある成分(イ)が選択されれば、本
発明のプリプレグ用樹脂組成物は、熱硬化反応すること
なくタックフリー化される。このようなタックフリー化
機構が本発明の最大の特徴である。
The component (c) in the resin composition of the present invention thus prepared first acts as a solvent to dissolve the component (a) and other components into a varnish which can be applied and impregnated on the fibrous base material. ing. When the component (C) is polymerized by irradiating it with an active energy ray, the component (C) loses its effect as a solvent as it solidifies, so that the component (B) is deposited.
At this time, the cured component (C) and other components are dispersed in the solid component (A). Therefore, if the component (a) that is in a suitable tack-free solid state at room temperature is selected, the prepreg resin composition of the present invention is tack-free without undergoing a thermosetting reaction. Such a tack free mechanism is the greatest feature of the present invention.

【0016】また、活性エネルギー線を照射することに
より硬化した本発明の成分(ハ)は熱反応性の官能基も
有するため、後の熱硬化反応時に主剤のエポキシ樹脂ま
たは硬化剤と一体化反応するので、その硬化物は、耐熱
性、耐薬品性等にも優れる。液状活性エネルギー線硬化
性樹脂とエポキシ樹脂等の熱硬化性樹脂とを配合した組
成物は、前述のように、活性エネルギーと熱によりそれ
ぞれの樹脂が別々に硬化するので、活性エネルギー硬化
性樹脂の欠点が十分解消されない。
Further, since the component (c) of the present invention cured by irradiation with active energy rays also has a heat-reactive functional group, it is integrated with the epoxy resin or the curing agent as the main component during the subsequent heat curing reaction. Therefore, the cured product is excellent in heat resistance, chemical resistance and the like. The composition in which the liquid active energy ray-curable resin and the thermosetting resin such as an epoxy resin are mixed, as described above, since the respective resins are separately cured by the active energy and the heat, the composition of the active energy curable resin The drawbacks are not fully eliminated.

【0017】[0017]

【実施例】以下、本発明を実施例に基づいて説明する。EXAMPLES The present invention will be described below based on examples.

【0018】《実施例1》ビスフェノールA型エポキシ
樹脂(エポキシ当量約470、重量平均分子量約90
0)100gをメタクリル酸グリシジル40gに溶解
し、そこへ硬化剤としてジシアンジアミド5g、2−エ
チル−4−メチルイミダゾール 0.15gと光重合開始
剤(チバガイギー製イルガキュア651) 1.2gを添
加し、ホモミキサーにて十分撹拌してプリプレグ用樹脂
組成物を調製した。次に、ガラスクロスをこの樹脂組成
物に浸漬した後、絞りロール間を通して樹脂付着量を4
2%に調整した。その後、UVコンベア機にて80W/
cm高圧水銀灯2本で約2J/cm2 の条件で紫外線照
射したところ、表面のタックは全くなくなった。また、
巻き取り可能な柔軟性も有するプリプレグとなった。次
いでこのプリプレグを2枚重ね、その両面に厚さ35μ
mの銅箔を貼り合わせ、熱プレスを用いて40kg/c
2 の圧力で150℃、1時間硬化させた。得られた積
層板について以下のような物性の測定を行った。結果を
表1に示す。
Example 1 Bisphenol A type epoxy resin (epoxy equivalent of about 470, weight average molecular weight of about 90)
0) 100 g was dissolved in 40 g of glycidyl methacrylate, to which 5 g of dicyandiamide as a curing agent, 0.15 g of 2-ethyl-4-methylimidazole and 1.2 g of a photopolymerization initiator (Irgacure 651 manufactured by Ciba-Geigy) were added, and homogenized. A resin composition for prepreg was prepared by sufficiently stirring with a mixer. Next, after dipping the glass cloth in this resin composition, the amount of resin adhered was set to 4 by passing it between squeezing rolls.
Adjusted to 2%. After that, 80W / with UV conveyor machine
When irradiated with ultraviolet rays under the condition of about 2 J / cm 2 with two cm high-pressure mercury lamps, tack on the surface was completely eliminated. Also,
It became a prepreg that also had the flexibility to be wound up. Next, stack two prepregs with a thickness of 35μ on both sides.
m copper foil is pasted together and 40 kg / c using a heat press
It was cured at a pressure of m 2 at 150 ° C. for 1 hour. The following physical properties of the obtained laminated plate were measured. The results are shown in Table 1.

【0019】(測定方法) 1.銅箔剥離強度:JIS C 6481に準じて測定し
た。 2.半田耐熱試験:JIS C 6481に準じて測定し
た。 3.耐薬品性試験:10%苛性ソーダ水溶液に常温で2
4時間浸漬
(Measurement method) 1. Copper foil peeling strength: Measured according to JIS C 6481. 2. Solder heat resistance test: Measured according to JIS C 6481. 3. Chemical resistance test: 2 at room temperature in 10% caustic soda solution
Soak for 4 hours

【0020】《実施例2》オルソクレゾールノボラック
型エポキシ樹脂(エポキシ当量約210)100gをメ
タクリル酸グリシジル50gに溶解し、そこへ硬化剤と
してジシアンジアミド8g、2−エチル−4−メチルイ
ミダゾール0.15g と光重合開始剤(チバガイギー製
イルガキュア651)1.5g を添加し、ホモミキサー
にて十分撹拌してプリプレグ用樹脂組成物を調製した。
以下、実施例1と同様にしてプリプレグ、積層板を得、
物性の測定を行った。結果を表1に示す。
Example 2 100 g of an orthocresol novolak type epoxy resin (epoxy equivalent of about 210) was dissolved in 50 g of glycidyl methacrylate, and 8 g of dicyandiamide and 0.15 g of 2-ethyl-4-methylimidazole as a curing agent were dissolved therein. A photopolymerization initiator (Irgacure 651 manufactured by Ciba-Geigy) was added thereto and sufficiently stirred with a homomixer to prepare a resin composition for prepreg.
Hereinafter, a prepreg and a laminated plate were obtained in the same manner as in Example 1,
The physical properties were measured. The results are shown in Table 1.

【0021】《比較例1》ビスフェノールA型エポキシ
樹脂(エポキシ当量約190)にアクリル酸を付加させ
て得られたエポキシアクリレート100gとメタクリル
酸グリシジル20gとを混合し、そこへ硬化剤としてジ
シアンジアミド 1.4g、2−エチル−4−メチルイミ
ダゾール 0.12gと光重合開始剤(チバガイギー製イ
ルガキュア651)3.5g を添加し、ホモミキサーに
て十分撹拌してプリプレグ用樹脂組成物を調製した。以
下、実施1と同様にしてプリプレグ、積層板を得、物性
の測定を行った。結果を表1に示す。
Comparative Example 1 100 g of an epoxy acrylate obtained by adding acrylic acid to a bisphenol A type epoxy resin (epoxy equivalent of about 190) and 20 g of glycidyl methacrylate were mixed, and dicyandiamide as a curing agent 1. 4 g, 0.12 g of 2-ethyl-4-methylimidazole and 3.5 g of a photopolymerization initiator (Irgacure 651 manufactured by Ciba-Geigy) were added and sufficiently stirred with a homomixer to prepare a resin composition for prepreg. Hereinafter, in the same manner as in Example 1, a prepreg and a laminated plate were obtained, and the physical properties were measured. The results are shown in Table 1.

【0022】 表 1 ─────────────────────────── 銅箔剥離強度 半田耐熱試験 耐薬品性試験 ─────────────────────────── 実施例1 2.0kg/cm 良好 良好 実施例2 2.1kg/cm 良好 良好 比較例1 0.7kg/cm 不良 白化・剥離 ───────────────────────────Table 1 ─────────────────────────── Copper foil peeling strength Solder heat resistance test Chemical resistance test ──────── ──────────────────── Example 1 2.0 kg / cm Good Good Example 2 2.1 kg / cm Good Good Comparative Example 1 0.7 kg / cm Bad Whitening・ Peeling ───────────────────────────

【0023】[0023]

【発明の効果】以上の通り、本発明のプリプレグ用樹脂
組成物は、繊維質基材へ気泡を残すことなく含浸し、光
重合及び熱反応性モノマーからなる希釈剤が活性エネル
ギー線照射のみにより硬化固形化、分散するため、熱に
よる乾燥・Bステージ化を行なう工程なくして簡単に固
形タックフリー化し、低コストで生産性良くプリプレグ
を作製できる。しかも、得られたプリプレグは熱硬化反
応することなくタックフリー化されているため、従来型
のBステージ化された物に比較して、柔軟性があり、レ
ジンの発塵もない。従って、ロール等への巻取りが可能
で、かつ、極めてクリーンなプリプレグとなる。
As described above, the resin composition for prepreg of the present invention impregnates the fibrous base material without leaving bubbles, and the diluent comprising the photopolymerization and the heat-reactive monomer is irradiated only by the active energy ray irradiation. Since it is cured and solidified and dispersed, solid tack-free can be easily achieved without the steps of drying and B-stage by heat, and a prepreg can be manufactured at low cost and with good productivity. Moreover, since the obtained prepreg is tack-free without undergoing a thermosetting reaction, it is more flexible and does not generate resin dust as compared with the conventional B-staged product. Therefore, the prepreg can be wound on a roll or the like and is extremely clean.

【0024】また、液状活性エネルギー線硬化性樹脂を
用いてプリプレグ化を行なった場合、酸素による重合阻
害のため硬化物の耐熱性、耐薬品性低下の恐れがあり、
液状活性エネルギー線硬化性樹脂とエポキシ樹脂等の熱
硬化性樹脂とを配合した組成物は、活性エネルギーと熱
によりそれぞれの樹脂が別々に硬化するので、活性エネ
ルギー硬化性樹脂の欠点が十分解消されないが、本発明
中の活性エネルギー線硬化性成分は熱反応性の官能基も
有するため、後の熱硬化反応時に主剤のエポキシ樹脂ま
たはその硬化剤と一体化反応するので、耐熱性、耐薬品
性の著しく改善された積層板が得られる。
When the liquid active energy ray-curable resin is used for prepreg formation, the heat resistance and chemical resistance of the cured product may decrease due to the inhibition of polymerization by oxygen.
A composition prepared by blending a liquid active energy ray-curable resin and a thermosetting resin such as an epoxy resin does not sufficiently eliminate the drawbacks of the active energy-curable resin because the respective resins are separately cured by the active energy and heat. However, since the active energy ray-curable component in the present invention also has a heat-reactive functional group, it reacts integrally with the epoxy resin of the main ingredient or its curing agent during the subsequent heat-curing reaction, so that it has heat resistance and chemical resistance. It is possible to obtain a laminate having a significantly improved

Claims (7)

【特許請求の範囲】[Claims] 【請求項1】 下記の成分(イ)、(ロ)、(ハ)及び
(ニ)からなることを特徴とする樹脂組成物。 (イ)常温で固形状態にあるエポキシ樹脂、(ロ)エポ
キシ樹脂硬化剤、(ハ)光重合及び熱反応性モノマーか
らなる希釈剤、(ニ)光重合開始剤。
1. A resin composition comprising the following components (a), (b), (c) and (d): (A) Epoxy resin in a solid state at room temperature, (b) epoxy resin curing agent, (c) diluent composed of photopolymerization and heat-reactive monomer, and (d) photopolymerization initiator.
【請求項2】 下記の成分(イ)、(ロ)、(ハ)及び
(ニ)からなることを特徴とするプリプレグ用樹脂組成
物。 (イ)常温で固形状態にあるエポキシ樹脂、(ロ)エポ
キシ樹脂硬化剤、(ハ)光重合及び熱反応性モノマーか
らなる希釈剤、(ニ)光重合開始剤。
2. A resin composition for prepreg, which comprises the following components (a), (b), (c) and (d): (A) Epoxy resin in a solid state at room temperature, (b) epoxy resin curing agent, (c) diluent composed of photopolymerization and heat-reactive monomer, and (d) photopolymerization initiator.
【請求項3】 成分(イ)が分子量500以上の常温で
固形状態にあるエポキシ樹脂である請求項2記載のプリ
プレグ用樹脂組成物。
3. The resin composition for prepreg according to claim 2, wherein the component (a) is an epoxy resin having a molecular weight of 500 or more and which is in a solid state at room temperature.
【請求項4】 成分(ハ)が1分子中に1個以上のアク
リロイル基又はメタクリロイル基、及び1個以上のグリ
シジル基を有する光重合及び熱反応性モノマーからなる
希釈剤である請求項2記載のプリプレグ用樹脂組成物。
4. A diluent comprising a photopolymerizable and heat-reactive monomer having one or more acryloyl groups or methacryloyl groups and one or more glycidyl groups in one molecule as the component (C). The resin composition for prepreg of.
【請求項5】 成分(ハ)がメタクリル酸グリシジルで
ある請求項2記載のプリプレグ用樹脂組成物。
5. The resin composition for prepreg according to claim 2, wherein the component (C) is glycidyl methacrylate.
【請求項6】 成分(イ)が分子量500以上の常温で
固形状態にあるエポキシ樹脂であり、成分(ハ)が1分
子中に1個以上のアクリロイル基又はメタクリロイル
基、及び1個以上のグリシジル基を有する光重合及び熱
反応性モノマーからなる希釈剤である請求項2記載のプ
リプレグ用樹脂組成物。
6. The component (a) is an epoxy resin having a molecular weight of 500 or more and which is in a solid state at room temperature, and the component (c) is one or more acryloyl group or methacryloyl group in one molecule, and one or more glycidyl. The resin composition for a prepreg according to claim 2, which is a diluent comprising a photopolymerizable and heat-reactive monomer having a group.
【請求項7】 成分(イ)が分子量500以上の常温で
固形状態にあるエポキシ樹脂であり、成分(ハ)がメタ
クリル酸グリシジルである請求項2記載のプリプレグ用
樹脂組成物。
7. The resin composition for prepreg according to claim 2, wherein the component (a) is an epoxy resin having a molecular weight of 500 or more and which is in a solid state at room temperature, and the component (c) is glycidyl methacrylate.
JP21300194A 1994-09-06 1994-09-06 Resin composition and resin composition for prepreg Expired - Fee Related JP3308403B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21300194A JP3308403B2 (en) 1994-09-06 1994-09-06 Resin composition and resin composition for prepreg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21300194A JP3308403B2 (en) 1994-09-06 1994-09-06 Resin composition and resin composition for prepreg

Publications (2)

Publication Number Publication Date
JPH0873565A true JPH0873565A (en) 1996-03-19
JP3308403B2 JP3308403B2 (en) 2002-07-29

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ID=16631846

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1553450A1 (en) 2001-09-27 2005-07-13 San-Ei Kagaku Co. Ltd. Process for preparing plugged-through-hole printed wiring board and plugged-through-hole printed wiring board
JP2015209549A (en) * 2014-04-25 2015-11-24 エボニック インダストリーズ アクチエンゲゼルシャフトEvonik Industries AG Process for production of storage-stable epoxy prepreg, and composite produced therefrom, based on radical-polymerizable acid and epoxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1553450A1 (en) 2001-09-27 2005-07-13 San-Ei Kagaku Co. Ltd. Process for preparing plugged-through-hole printed wiring board and plugged-through-hole printed wiring board
JP2015209549A (en) * 2014-04-25 2015-11-24 エボニック インダストリーズ アクチエンゲゼルシャフトEvonik Industries AG Process for production of storage-stable epoxy prepreg, and composite produced therefrom, based on radical-polymerizable acid and epoxide

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