JP2805798B2 - Laminates for electricity with ultraviolet absorption - Google Patents
Laminates for electricity with ultraviolet absorptionInfo
- Publication number
- JP2805798B2 JP2805798B2 JP4543489A JP4543489A JP2805798B2 JP 2805798 B2 JP2805798 B2 JP 2805798B2 JP 4543489 A JP4543489 A JP 4543489A JP 4543489 A JP4543489 A JP 4543489A JP 2805798 B2 JP2805798 B2 JP 2805798B2
- Authority
- JP
- Japan
- Prior art keywords
- laminate
- resin
- alkylthioxanthone
- ultraviolet
- present
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、紫外線吸収能を持った、すなわち、プリン
ト配線網を形成した後に積層板表面に紫外線感光型樹脂
膜を形成し、特定のパターンを形成したり、積層板の表
裏に紫外線感光型樹脂膜を選択的に形成したりした後、
無電界メッキによりプリント配線網を形成したりする際
に、照射面の反対面（裏面）側や照射面の紫外線感光型
樹脂膜の所望しない部分を感光させて正確なパターンの
形成が困難となる問題点を解決する金属箔張積層板や積
層板に関するものであり、実質的に色相変化のないもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for forming a specific pattern by forming an ultraviolet-sensitive resin film on the surface of a laminate after forming a printed wiring network. After forming or selectively forming an ultraviolet-sensitive resin film on the front and back of the laminate,
When a printed wiring network is formed by electroless plating, it is difficult to form an accurate pattern by exposing an undesired portion of the ultraviolet-sensitive resin film on the opposite surface (back surface) of the irradiated surface or the irradiated surface. The present invention relates to a metal foil-clad laminate or a laminate that solves the problems, and has substantially no hue change.
従来、ガラス不織布やガラス織布にエポキシ樹脂を含
浸、乾燥して作るプリプレグを積層成形した積層板やプ
リプレグと金属箔とを重ね、積層成形する金属箔張積層
板の製造法において、紫外線の透過を防止するために、
無機充填剤や染料を配合する方法がある。この方法は、
得られた積層板の硬化した樹脂含浸基材が不透明となる
欠点があった。又、エポキシ樹脂に紫外線吸収剤や蛍光
増白剤などを配合する方法が、特開昭62−132390号公報
他に種々あるが、紫外線吸収剤では360nm〜460nmの吸収
が不十分であり、また、蛍光増白剤では、蛍光を発する
欠点があった。Conventionally, in a method of manufacturing a laminated board formed by laminating a prepreg made by impregnating and drying a glass nonwoven fabric or a glass woven fabric with an epoxy resin, or by laminating a prepreg and a metal foil and laminating and forming a metal foil-clad laminate, a method of transmitting ultraviolet light is used. To prevent
There is a method of blending an inorganic filler and a dye. This method
There was a disadvantage that the cured resin-impregnated base material of the obtained laminate became opaque. Also, there are various methods of blending an ultraviolet absorber, a fluorescent whitening agent, and the like with the epoxy resin, as disclosed in Japanese Patent Application Laid-Open No. 62-132390, but the ultraviolet absorber has insufficient absorption at 360 nm to 460 nm, and The fluorescent whitening agent has a drawback of emitting fluorescence.
本発明者は、上記の問題点を解決し、効率的な紫外線
吸収能を持たせ、しかも積層板の製造が容易な方法鋭意
検討した結果、本発明を完成させた。The present inventor has solved the above-mentioned problems, has an efficient ultraviolet absorbing ability, and has made intensive studies on a method for easily manufacturing a laminated board. As a result, the present invention has been completed.
すなわち、本発明は、硬化した熱硬化性樹脂含浸基材
又は該樹脂含浸基材及び金属箔から構成された電気用積
層板において、該硬化した熱硬化性樹脂が下記一般式
（１）で表されるアルキルチオキサントン0.2〜6.0重量
％を配合してなるものであることを特徴とする紫外線吸
収能を有する電気用積層板であり、また、該硬化した熱
硬化性樹脂がアルキルチオキサントンと紫外線吸収剤と
を合計で0.2〜6.0重量％を配合してなるものであること
を特徴とする紫外線吸収能を有する電気用積層板であ
り、実質的に色相変化のないものである。That is, the present invention relates to a cured thermosetting resin-impregnated base material or an electric laminate composed of the resin-impregnated base material and a metal foil, wherein the cured thermosetting resin is represented by the following general formula (1). And a UV-absorbing electrical laminate, wherein the cured thermosetting resin comprises an alkylthioxanthone and an ultraviolet absorber. And a total of 0.2 to 6.0% by weight, which is an electric laminate having ultraviolet absorbing ability, and has substantially no hue change.
一般式（１）： （式中のR1、R2はアルキル基であり、ｐ、ｑは０又は
４以下の整数であり、 ｐ＋ｑ≧１である。） 積層板上に形成される光重合保護塗料等の感光性膜
は、その成分として光開始剤を配合し光を吸収してラジ
カルやカチオンを生じ、塗膜を硬化させるものであり、
さらに光開始助剤（増感剤）を併用して光照射により塗
膜を硬化させるものである。そして、本発明は特定の光
開始剤を樹脂に混合することで効果的に紫外線を吸収
し、かつ着色のないものを見出したものである。General formula (1): (In the formula, R 1 and R 2 are alkyl groups, p and q are 0 or an integer of 4 or less, and p + q ≧ 1.) Photosensitivity such as a photopolymerization protective coating formed on a laminate The film is to mix a photoinitiator as its component, absorb light, generate radicals and cations, and cure the coating film,
Further, the coating film is cured by light irradiation in combination with a photoinitiating auxiliary (sensitizer). In the present invention, a specific photoinitiator is mixed with a resin to effectively absorb ultraviolet rays and to be free from coloring.
以下、本発明の構成について説明する。 Hereinafter, the configuration of the present invention will be described.
本発明の熱硬化性樹脂含浸基材の基材とは、公知の各
種の電気用積層板に用いられいるものであれば特に限定
のないものであるが、通常、ガラス不織布、ガラス織
布、ガラス繊維と他の繊維との混合不織布や織布、特に
ガラス不織布や織布を用いたような積層板などの透明に
近くなるものが最も効果的であり、厚みは特徴に制限は
ないが、通常0.1〜0.40mmが好適である。The base material of the thermosetting resin-impregnated base material of the present invention is not particularly limited as long as it is used for various known electric laminates, but usually, a glass nonwoven fabric, a glass woven fabric, Mixed non-woven fabrics and woven fabrics of glass fibers and other fibers, especially those that are nearly transparent, such as laminated boards using glass non-woven fabrics and woven fabrics, are most effective, and the thickness is not limited to features, Usually, 0.1 to 0.40 mm is preferable.
また、本発明の熱硬化性樹脂としては、公知の各種の
電気用積層板に用いられているものであれば特に限定の
ないものであるが、特にエポキシ樹脂が効果的であり、
ビスフェノールＡ型エポキシ樹脂、フェノールノボラッ
ク型エポキシ樹脂、クレゾールノボラック型エポキシ樹
脂、臭素化ビスフェノールＡ型エポキシ樹脂、臭素化フ
ェノールノボラック型エポキシ樹脂、その他の多官能性
エポキシ樹脂など；これらエポキシ樹脂に、ポリエーテ
ルイミド、ポリフェニレンエーテルなどの耐熱性のエン
ジニアリングプラスチック、飽和又は不飽和ポリエステ
ル樹脂などの公知の変性用樹脂類、ジシアンジアミド、
ジアミノジフェニルメタン、フェノールノボラック樹脂
などのフェノール類、酸無水物類などの公知の硬化剤、
２−メチルイミダゾール、２−エチル−４−メチルイミ
ダゾール、２−ウンデシルイミダゾール、２−ヘプタデ
シルイミダゾール、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などのイミダゾール
類、ベンジルジメチルアミンなどのアミン類などの硬化
触媒、無機充填剤、有機充填剤、難燃剤、顔料、染料な
どを配合してなるものが例示される。The thermosetting resin of the present invention is not particularly limited as long as it is used for various known electric laminates, and an epoxy resin is particularly effective.
Bisphenol A type epoxy resin, phenol novolak type epoxy resin, cresol novolak type epoxy resin, brominated bisphenol A type epoxy resin, brominated phenol novolak type epoxy resin, other polyfunctional epoxy resins, etc .; Heat-resistant engineering plastics such as imide and polyphenylene ether, known modifying resins such as saturated or unsaturated polyester resin, dicyandiamide,
Diaminodiphenylmethane, phenols such as phenol novolak resins, known curing agents such as acid anhydrides,
Imidazoles such as 2-methylimidazole, 2-ethyl-4-methylimidazole, 2-undecylimidazole, 2-heptadecylimidazole, 2-phenylimidazole, 1-benzyl-2-methylimidazole, and amines such as benzyldimethylamine Examples thereof include compounds obtained by blending a curing catalyst such as a compound, an inorganic filler, an organic filler, a flame retardant, a pigment, a dye, and the like.
本発明の熱硬化性樹脂に配合する上記の一般式（１）
で表されるアルキルチオキサントンとは、光開始剤又は
光開始助剤の一種であり、炭素数８以下のアルキル基を
１〜４個、特に、2,4−位に持ったものが好ましく、具
体的には2,4−ジエチルチオキサントン、2,4−ジイソプ
ロピルチオキサントン、2,4−ジメチルチオキサント
ン、３−イソプロピルチオキサントンなどが例示される
ものである。The above general formula (1) blended in the thermosetting resin of the present invention.
The alkylthioxanthone represented by is a kind of a photoinitiator or a photoinitiator, and preferably has 1 to 4 alkyl groups having 8 or less carbon atoms, particularly those having an 2,4-position. Specific examples include 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone, 2,4-dimethylthioxanthone, and 3-isopropylthioxanthone.
本発明の紫外線吸収剤とは、２−（２−ヒドロキシ−
２−メチルフェニル）ベンゾトリアゾール、２−（２−
ヒドロキシ−５−ブチルフェニル）ベンゾトリアゾー
ル、２−（２−ヒドロキシ−3,5−ジ−ｔ−ブチルフェ
ニル）ベンゾトリアゾール、２−（２−ヒドロキシ−3,
5−ジ−ｔ−アミルフェニル）ベンゾトリアゾール、２
−（２−ヒドロキシ−３−ｔ−ブチル−５−メチルフェ
ニル）−５−クロロベンゾトリアゾールなどのベンゾト
リアゾール類;2−エトキシ−２′−エチルオキザリック
アシッドビスアニリド、２−エトキシ−５−ｔ−ブチル
−２′−エチルオキザリックアシッドビスアニリドなど
のオキザリックアシッドアニリド系紫外線吸収剤;2.4−
ジヒドロキシンベンゾフェノン、２−ヒドロキシ−４−
メトキシベンゾフェノン、２−ヒドロキシ−４−ｎ−オ
クトキシベンゾフェノン、２−ヒドロキシ−４−ｎ−ド
デシロキシベンゾフェノン、2,2′4,4′−テトラヒドロ
ベンゾフェノン、2,2′−ジヒドロキシ−4,4′−ジメト
キシベンゾフェノン、２−ヒドロキシ−４−ベンジルオ
キシベンゾフェノン、２−シアシ−3,3−ジフェニル−
エチルアクリレートなどの紫外線吸収剤が例示される。The ultraviolet absorbent of the present invention is 2- (2-hydroxy-
2-methylphenyl) benzotriazole, 2- (2-
(Hydroxy-5-butylphenyl) benzotriazole, 2- (2-hydroxy-3,5-di-t-butylphenyl) benzotriazole, 2- (2-hydroxy-3,
5-di-t-amylphenyl) benzotriazole, 2
Benzotriazoles such as-(2-hydroxy-3-t-butyl-5-methylphenyl) -5-chlorobenzotriazole; 2-ethoxy-2'-ethyloxalic acid bisanilide, 2-ethoxy-5 Oxalic acid anilide ultraviolet absorbers such as t-butyl-2'-ethyl oxalic acid bisanilide; 2.4-
Dihydroxynbenzophenone, 2-hydroxy-4-
Methoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-n-dodecyloxybenzophenone, 2,2'4,4'-tetrahydrobenzophenone, 2,2'-dihydroxy-4,4 '-Dimethoxybenzophenone, 2-hydroxy-4-benzyloxybenzophenone, 2-cyasi-3,3-diphenyl-
An ultraviolet absorber such as ethyl acrylate is exemplified.
アルキルチオキサントン単独、アルキルチオキサント
ンと紫外線吸収剤との合計の配合量は熱硬化性樹脂の全
固形分に対し0.2〜６重量％の範囲であり、熱硬化性樹
脂全体に均一に配合しても一部のプリプレグに配合して
もよい。積層板の板厚が薄い場合１〜６重量％と比較的
多く、逆に板厚が厚い場合で全体に均一に混合する場合
は0.2〜２重量％と比較的少なく配合する。配合量が0.2
重量％未満では紫外線吸収能力が不足し、6.0重量％を
超える量は過剰であり、不必要である。又、アルキルチ
オキサントンと紫外線吸収剤とを併用する場合、少なく
ともアルキルチオキサントンが0.1重量％となるように
使用するのが好ましい。ここに、アルキルチオキサント
ンと紫外線吸収剤との併用は、紫外線吸収剤の吸収波長
範囲が限定されている為に紫外線吸収剤単独使用の場合
に透過する比較的長波長の紫外線を吸収させるために有
効である。さらに、その他の光開始剤、光開始助剤など
を色相の変化が許容される範囲内であれば併用できるも
のであり、また、本アルキルチオキサントンによる着色
は極めて僅かなものであるが、耐熱性、電気特性に優れ
た青色染料などを微量添加して色消し、或いは従来の積
層板と同一の色相とすることが好ましい。The total compounding amount of the alkylthioxanthone alone, the alkylthioxanthone and the ultraviolet absorber is in the range of 0.2 to 6% by weight based on the total solid content of the thermosetting resin. Prepreg. When the thickness of the laminate is small, it is relatively large as 1 to 6% by weight, and conversely, when the thickness is large and the whole is uniformly mixed, the content is relatively small as 0.2 to 2% by weight. 0.2
If the amount is less than 10% by weight, the ability to absorb ultraviolet rays is insufficient, and if the amount exceeds 6.0% by weight, the amount is excessive and unnecessary. When alkylthioxanthone and an ultraviolet absorber are used in combination, it is preferable to use at least 0.1% by weight of alkylthioxanthone. Here, the combined use of alkylthioxanthone and an ultraviolet absorber is effective for absorbing relatively long-wave ultraviolet light transmitted when the ultraviolet absorber alone is used because the absorption wavelength range of the ultraviolet absorber is limited. It is. Further, other photoinitiators, photoinitiating assistants and the like can be used in combination as long as the change in hue is within a permissible range.Although coloring with the present alkylthioxanthone is extremely slight, heat resistance is high. It is preferable to add a small amount of a blue dye or the like having excellent electrical properties to achromatize the color, or to obtain the same hue as that of a conventional laminate.
以上の成分を使用し、本発明のプリプレグを製造し、
該プリプレグを一枚以上用い、適宜、通常のプリプレグ
と組み合わせせて樹脂含浸基材の中央、両外側などに配
置し、さらに、金属箔（例えば、銅、アルミニウム、鉄
など）、内装用プリント配線板、外層用片面銅張積層板
などを適宜併用して通常の積層成形方法、例えば、多段
プレス、多段真空プレス、連続成形、オートクレーブ成
形など、温度100〜200℃、圧力２〜100kg/cm2、時間0.0
3〜３時間の範囲のそれぞれ通常の積層成形条件で積層
成形して本発明の電気用積層板を製造する。Using the above components, to produce a prepreg of the present invention,
Using one or more of the prepregs, suitably combining with a normal prepreg, arranging the prepregs at the center, both outer sides, and the like of the resin-impregnated base material, furthermore, metal foil (for example, copper, aluminum, iron, etc.), and printed wiring for interior Board, single-sided copper-clad laminate for outer layer, etc. as appropriate in combination with ordinary lamination molding methods, for example, multi-stage press, multi-stage vacuum press, continuous molding, autoclave molding, etc., temperature 100 to 200 ° C, pressure 2 to 100 kg / cm 2 , Time 0.0
Lamination molding is performed under normal lamination molding conditions in the range of 3 to 3 hours, respectively, to produce the electric laminate of the present invention.
以下、実施例により本発明を説明する。なお、実施例
の「部」及び「％」は特に断らないかぎり重量基準であ
る。Hereinafter, the present invention will be described with reference to examples. In the examples, "parts" and "%" are based on weight unless otherwise specified.
実施例１〜５および比較例１ 臭素化ビスフェノールＡ型エポキシ樹脂（商品名；エ
ピコート1045、Br含量18〜20％、エポキシ当量450〜50
0、油化シェルエポキシ（株）製）100部、ジシアンジア
ミド3.5部及び２−メチルイミダゾール0.2部をメチルエ
チルケトンとN,N−ジメチルホルムアミドとの混合溶剤
に溶解し、厚み0.18mmの平織ガラス織布に含浸し、160
℃で６分乾燥して樹脂量45％のプリプレグ（以下、PP−
１と記す）を製造した。Examples 1 to 5 and Comparative Example 1 Brominated bisphenol A type epoxy resin (trade name: Epicoat 1045, Br content 18 to 20%, epoxy equivalent 450 to 50)
0, 100 parts of Yuka Shell Epoxy Co., Ltd.), 3.5 parts of dicyandiamide and 0.2 parts of 2-methylimidazole are dissolved in a mixed solvent of methyl ethyl ketone and N, N-dimethylformamide to form a 0.18 mm thick plain woven glass fabric. Impregnated, 160
Prepreg (hereinafter referred to as PP-
1) was prepared.
上記エポキシ樹脂ワニスに2,4−ジエチルチオキサン
トンを樹脂固形分の2.0％になる量追加配合する他は同
様にして樹脂量45％のプリプレグ（以下、PP−２と記
す）を製造した。A prepreg (hereinafter referred to as PP-2) having a resin amount of 45% was produced in the same manner except that 2,4-diethylthioxanthone was added to the epoxy resin varnish in an amount of 2.0% of the resin solid content.
また、2,4−ジエチルチオキサントンに代えて、2,4−
ジイソプロピルチオキサントン（以下、PP−３と記す、
実施例２）、2,4−ジメチルチオキサントン（以下、PP
−４と記す、実施例３）又は４−ジイソプロピルチオキ
サントン（以下、PP−５と記す、実施例４）を1.0％用
いること、又は２−（２−ヒドロキシ−3,5−ジ−ｔ−
アミルフェニル）ベンゾトリアゾールの紫外線吸収剤0.
35％と2,4−ジエチルチオキサントン0.15％とを併用す
ること（以下、PP−６と記す、実施例５）の他は全く同
様にしてプリプレグを製造した。Also, instead of 2,4-diethylthioxanthone, 2,4-
Diisopropylthioxanthone (hereinafter referred to as PP-3,
Example 2), 2,4-dimethylthioxanthone (hereinafter referred to as PP
Using 1.0% of -4, Example 3) or 4-diisopropylthioxanthone (hereinafter, referred to as PP-5, Example 4), or 2- (2-hydroxy-3,5-di-t-
Amylphenyl) benzotriazole UV absorber
A prepreg was produced in exactly the same manner except that 35% and 0.15% of 2,4-diethylthioxanthone were used together (hereinafter referred to as PP-6, Example 5).
PP−１単独、又はPP−１とPP−２、PP−３、PP−４、
PP−５又はPP−６を各１枚とを合計で８枚重ね、その両
側に厚さ35μｍの電界銅箔を重ねて、170℃、30kg/cm2
で２時間積層成形して厚さ1.6mmの両面銅張積層板を製
造した。PP-1 alone, or PP-1 and PP-2, PP-3, PP-4,
A total of eight sheets of PP-5 or PP-6 are stacked on each other, and a 35 μm-thick electric field copper foil is stacked on both sides thereof at 170 ° C. and 30 kg / cm 2
For 2 hours to produce a double-sided copper-clad laminate having a thickness of 1.6 mm.
得られた銅張積層板をエッチングして両面の銅箔を除
去した後、この積層板を高圧水銀ランプ（波長300−400
nm,1kW、（株）ウシオユーテック製、HIタイプ）との間
隔を20cmに置き、300mJ/cm2照射した後の光の透過率お
よびメタルハライドランプ（波長380−420nm,1kW、
（株）ウシオユーテック製、GLタイプ）で光の強さ24mW
/cm2で照射し、計700mJ/cm2の光を照射した後の光の透
過率を測定した。なお、積層板表面の光の強さは10nW/c
m2であり、受光器として波長330−490nmを受光するウシ
オ電気（株）製、UVD−405PDを用いた。After etching the obtained copper-clad laminate to remove the copper foil on both sides, the laminate was placed on a high-pressure mercury lamp (wavelength 300-400).
nm, 1 kW, (Ltd.) Ushio U-Tech Ltd., by an interval between the HI type) to 20 cm, 300 mJ / cm 2 permeability and a metal halide lamp light was irradiated (wavelength 380-420Nm, 1 kW,
24mW light intensity with Ushio Youtec Co., Ltd., GL type
/ cm 2 , and a total of 700 mJ / cm 2 of light, and the light transmittance was measured. The light intensity on the surface of the laminate is 10 nW / c
m 2, and Ushio Co. for receiving a wavelength 330-490nm as light receiver, using UVD-405PD.
これらの結果を第１表に示した。 The results are shown in Table 1.
なお、上記の積層板の裏面に液状レジスト（太陽イン
キ（株）製、PSR−1000）を塗布、乾燥したものについ
て露光試験をしたところ、比較例１を除き実施例１、
２、３、４及び５の裏面のレジストの感光性は無かっ
た。また、上記で製造したPP−２〜PP−６は僅かに黄色
に着色していたが、得られた積層板は、比較例１のもの
と全く同様に僅かに青色に着色したものであった。In addition, when a liquid resist (manufactured by Taiyo Ink Co., Ltd., PSR-1000) was applied to the back surface of the laminated plate and dried, an exposure test was performed.
There was no photosensitivity of the resist on the back surfaces of 2, 3, 4 and 5. Further, although the above-prepared PP-2 to PP-6 were slightly colored yellow, the obtained laminate was slightly colored blue just like the one of Comparative Example 1. .
〔発明の作用および効果〕 以上如くである本発明の電気積層板は、アルキルチオ
キサントン単独、又はこれと紫外線吸収剤とを併用する
ことによって、高圧水銀ランプ又はメタハライドランプ
の光の吸収性が良好であり、かつ、レジスト露光用の波
長の光を特に効率よく吸収する。この結果、長波長の紫
外線を使用して露光する場合やホトレジストの露光用の
光量が多い長時間露光の場合のいずれにおいても感光す
る恐れがないという紫外線吸収剤にない全く新規な特性
を発揮する。 [Effects and Effects of the Invention] The electric laminate of the present invention as described above has good light absorption of a high-pressure mercury lamp or a metahalide lamp by using alkylthioxanthone alone or in combination with an ultraviolet absorber. And absorbs light of a wavelength for resist exposure particularly efficiently. As a result, there is a completely novel property which is not present in the ultraviolet absorber that there is no risk of exposure in both the case of exposing using ultraviolet light of long wavelength and the case of long time exposure in which the amount of light for photoresist exposure is large. .
また、着色性も極めて僅かなものであり、通常の積層
板と実質的に同様である。Further, the coloring property is very slight, and is substantially the same as that of a normal laminated plate.
以上の如くであり、本発明の電気用積層板は、実用的
に極めて優れたものであることが理解される。As described above, it is understood that the electric laminate of the present invention is practically extremely excellent.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B32B 15/00 - 15/08 H05K 1/03 C09K 3/00 C08K 5/00 - 5/59──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) B32B 15/00-15/08 H05K 1/03 C09K 3/00 C08K 5/00-5/59
Claims (2)
含浸基材及び金属箔から構成された電気用積層板におい
て、該硬化した熱硬化性樹脂が下記一般式（１）で表さ
れるアルキルチオキサントン0.2〜6.0重量％を配合して
なるものであることを特徴とする紫外線吸収能を有する
電気用積層板． 一般式（１）： （式中のR1、R2はアルキル基であり、ｐ、ｑは０又は４
以下の整数であり、 ｐ＋ｑ≧１である。）1. A cured thermosetting resin-impregnated substrate or an electric laminate composed of the resin-impregnated substrate and a metal foil, wherein the cured thermosetting resin is represented by the following general formula (1). 1. An electric laminate having ultraviolet absorbing ability, comprising 0.2 to 6.0% by weight of alkylthioxanthone. General formula (1): (Wherein R 1 and R 2 are alkyl groups, and p and q are 0 or 4
The following integers, and p + q ≧ 1. )
にアルキルチオキサントンと紫外線吸収剤とを合計で0.
2〜6.0重量％を配合してなるものである請求項１記載の
紫外線吸収能を有する電気用積層板．2. The cured thermosetting resin comprises a UV-curable resin containing alkylthioxanthone and a UV absorber in a total amount of 0.1.
The laminate according to claim 1, wherein the laminate comprises 2 to 6.0% by weight.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4543489A JP2805798B2 (en) | 1989-02-28 | 1989-02-28 | Laminates for electricity with ultraviolet absorption |
| US07/754,997 US5160787A (en) | 1989-01-12 | 1991-09-05 | Electrical laminate having ability to absorb ultraviolet rays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4543489A JP2805798B2 (en) | 1989-02-28 | 1989-02-28 | Laminates for electricity with ultraviolet absorption |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02227442A JPH02227442A (en) | 1990-09-10 |
| JP2805798B2 true JP2805798B2 (en) | 1998-09-30 |
Family
ID=12719204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4543489A Expired - Lifetime JP2805798B2 (en) | 1989-01-12 | 1989-02-28 | Laminates for electricity with ultraviolet absorption |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2805798B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160787A (en) * | 1989-01-12 | 1992-11-03 | Mitsubishi Gas Chemical Company, Inc. | Electrical laminate having ability to absorb ultraviolet rays |
| CA2365376C (en) | 2000-12-21 | 2006-03-28 | Ethicon, Inc. | Use of reinforced foam implants with enhanced integrity for soft tissue repair and regeneration |
| US20040078090A1 (en) | 2002-10-18 | 2004-04-22 | Francois Binette | Biocompatible scaffolds with tissue fragments |
| US8197837B2 (en) | 2003-03-07 | 2012-06-12 | Depuy Mitek, Inc. | Method of preparation of bioabsorbable porous reinforced tissue implants and implants thereof |
| US8226715B2 (en) | 2003-06-30 | 2012-07-24 | Depuy Mitek, Inc. | Scaffold for connective tissue repair |
| US10583220B2 (en) | 2003-08-11 | 2020-03-10 | DePuy Synthes Products, Inc. | Method and apparatus for resurfacing an articular surface |
| US11395865B2 (en) | 2004-02-09 | 2022-07-26 | DePuy Synthes Products, Inc. | Scaffolds with viable tissue |
-
1989
- 1989-02-28 JP JP4543489A patent/JP2805798B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02227442A (en) | 1990-09-10 |
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