【０００１】[0001]
【発明の属する技術分野】本発明は、樹脂含浸基材の製
造に用いられる樹脂含浸方法、及び樹脂含浸基材を用い
た積層板に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin impregnating method used for manufacturing a resin-impregnated substrate, and a laminate using the resin-impregnated substrate.
【０００２】[0002]
【従来の技術】プリント配線板の製造に用いられる積層
板は、ガラスクロス等の内部に空隙を有する基材に、エ
ポキシ樹脂等の熱硬化性樹脂組成物を含浸した後、この
樹脂含浸基材を加熱して半硬化させることによってプリ
プレグを製造し、このプリプレグを所要枚数重ねるとと
もに、銅箔等の金属箔をその片側又は両側に配して積層
して積層物を形成し、その積層物を加熱・加圧して成形
を行うバッチ式の方法や、連続的に供給される基材に樹
脂組成物を含浸した樹脂含浸基材を、１枚ないしは複数
枚積層し、その片側又は両側に金属箔を配して積層した
後、ラミネートロールにて連続的に圧着し、次いでその
圧着物を加熱して連続的に成形する方法で製造されてい
る。2. Description of the Related Art A laminated board used for manufacturing a printed wiring board is prepared by impregnating a base material having a void inside a glass cloth or the like with a thermosetting resin composition such as an epoxy resin, and then impregnating the resin-impregnated base material. A prepreg is manufactured by heating and semi-curing the prepreg, and a required number of the prepregs are stacked, and a metal foil such as a copper foil is arranged on one side or both sides to form a laminate, and the laminate is formed. A batch-type method of performing molding by heating and pressing, or a resin-impregnated base material impregnated with a resin composition on a continuously supplied base material, one or more sheets are laminated, and a metal foil is formed on one or both sides thereof. Are laminated and then continuously pressed by a laminating roll, and then the pressed product is heated to be continuously formed.
【０００３】基材に樹脂組成物を含浸する方法として
は、例えば特開昭６２−２７９９０７号に示すような、
溶剤等を配合して粘度を調整した液状の樹脂組成物を満
たした含浸槽に、基材を連続的に浸入させて樹脂組成物
に浸漬した後、基材を含浸槽から引き出して連続的に含
浸する方法が、従来より一般的に行われている。As a method of impregnating a base material with a resin composition, for example, as described in JP-A-62-279907,
After impregnating the base material continuously into the impregnation tank filled with the liquid resin composition whose viscosity has been adjusted by blending a solvent or the like and immersing the base material in the resin composition, the base material is continuously drawn out of the impregnation tank. The method of impregnation has been generally performed conventionally.
【０００４】このような方法で得られる樹脂含浸基材
は、基材内部に気泡を残している場合が一般的である。
そのため、積層板を製造する際には、加圧することによ
り樹脂組成物を中央部から端部側に流動させて、基材内
の気泡を抜く方法が行われており、そのために、基材に
含浸する樹脂組成物の量は、基材内の空隙を埋める量よ
りやや多くし、基材のそれぞれの表面にも樹脂組成物の
層が形成される程度の量が、一般に含浸されている。[0004] The resin-impregnated substrate obtained by such a method generally has air bubbles left inside the substrate.
Therefore, when manufacturing a laminate, a method is used in which the resin composition is caused to flow from the center to the end by pressurizing to remove bubbles in the base material. The amount of the resin composition to be impregnated is slightly larger than the amount to fill the voids in the substrate, and the amount of the resin composition is generally impregnated to such an extent that a layer of the resin composition is formed on each surface of the substrate.
【０００５】なお、上記のような方法で含浸する場合、
溶剤を大量に使用するため、作業環境や安全性等に問題
があった。そのため、溶剤量を減らした粘度の高い液状
の樹脂組成物を含浸する方法が検討されており、例え
ば、特開平９−２４８８２３号に記載されたような、連
続的に供給される基材の一方の面を開放状態に保持しな
がら、基材の他方の面に、比較的粘度の高い液状の樹脂
組成物を接触させて、基材を樹脂組成物の上側に位置さ
せた状態に保持することにより、基材に樹脂組成物を含
浸する方法が検討されている。[0005] When impregnating by the above method,
Since a large amount of solvent is used, there are problems in working environment, safety, and the like. Therefore, a method of impregnating a high-viscosity liquid resin composition with a reduced solvent amount has been studied. For example, one of the continuously supplied base materials as described in JP-A-9-248823 Contacting the liquid resin composition having a relatively high viscosity to the other surface of the base material while holding the surface of the base material in an open state, and holding the base material in a state positioned above the resin composition. Accordingly, a method of impregnating a substrate with a resin composition has been studied.
【０００６】しかし、この特開平９−２４８８２３号に
記載されたような方法で含浸して得られた樹脂含浸基材
は、樹脂付着量の表裏ばらつきが大きくなる場合がある
という問題があった。そして、この樹脂付着量の表裏の
差が大きな樹脂含浸基材を用いて製造した積層板は、樹
脂付着量が少ない側の面に金属箔が接着していない部分
が生じる場合があるという問題があった。そのため、樹
脂付着量の表裏ばらつきが小さい樹脂含浸基材が得られ
る樹脂含浸方法が求められている。However, the resin-impregnated base material obtained by impregnation according to the method described in Japanese Patent Application Laid-Open No. 9-248823 has a problem that the front and back dispersion of the resin adhesion amount may be large. The laminate manufactured using a resin-impregnated base material having a large difference between the front and back sides of the resin adhesion amount has a problem that a portion where the metal foil is not adhered may occur on the surface on the side where the resin adhesion amount is small. there were. Therefore, there is a need for a resin impregnation method that can provide a resin-impregnated base material having small variations in the amount of resin attached to the front and back.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、上記問題点
を改善するために成されたもので、その目的とするとこ
ろは、連続的に供給される基材の一方の面を開放状態に
保持しながら、基材の他方の面に液状の樹脂組成物を接
触させて、基材を樹脂組成物の上側に位置させた状態に
保持して基材に樹脂組成物を含浸する樹脂含浸方法であ
って、樹脂付着量の表裏ばらつきが小さい樹脂含浸基材
が得られる樹脂含浸方法を提供することにある。また、
金属箔が接着していない部分が少ない積層板を提供する
ことにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to open one side of a continuously supplied base material. A resin impregnating method in which a liquid resin composition is brought into contact with the other surface of the base material while holding the base material, and the base material is impregnated with the resin composition while maintaining the base material positioned above the resin composition. An object of the present invention is to provide a resin impregnation method capable of obtaining a resin-impregnated base material having a small variation in the amount of resin adhered to the front and back. Also,
It is an object of the present invention to provide a laminate having a small number of portions to which a metal foil is not adhered.
【０００８】[0008]
【課題を解決するための手段】本発明の請求項１に係る
樹脂含浸方法は、連続的に供給される基材の一方の面を
開放状態に保持しながら、基材の他方の面に液状の樹脂
組成物を接触させて、基材を樹脂組成物の上側に位置さ
せた状態に保持して基材に樹脂組成物を含浸した後、基
材の上記一方の面に樹脂組成物を塗布することを特徴と
する。According to a first aspect of the present invention, there is provided a method for impregnating a resin, wherein one surface of a continuously supplied base material is kept in an open state while a liquid is impregnated on the other surface of the base material. After the resin composition is brought into contact with the resin composition and the substrate is impregnated with the resin composition while holding the substrate positioned above the resin composition, the resin composition is applied to the one surface of the substrate. It is characterized by doing.
【０００９】基材の上記他方の面に樹脂組成物を接触さ
せて基材に樹脂組成物を含浸した直後に生じている、樹
脂組成物付着量の表裏差に相当する量の樹脂組成物を、
基材に樹脂組成物を含浸した後に基材の上記一方の面に
塗布すると、基材の両面にほぼ同じ量の樹脂組成物が付
着した状態となるため、本発明によると、樹脂量の表裏
ばらつきが小さい樹脂含浸基材が得られる。[0009] The amount of the resin composition corresponding to the difference between the front and back sides of the amount of the resin composition adhered immediately after the resin composition is brought into contact with the other surface of the substrate and impregnated with the resin composition is impregnated with the resin composition. ,
When applied to the one surface of the substrate after the substrate is impregnated with the resin composition, since the same amount of the resin composition adheres to both surfaces of the substrate, according to the present invention, the front and back of the resin amount A resin-impregnated base material having small variations can be obtained.
【００１０】本発明の請求項２に係る樹脂含浸方法は、
請求項１記載の樹脂含浸方法において、基材の上記一方
の面に樹脂組成物を塗布する方法が、ロールの表面に付
着した樹脂組成物を、基材の上記一方の面に転写して塗
布する方法であることを特徴とする。[0010] The resin impregnation method according to claim 2 of the present invention comprises:
2. The resin impregnating method according to claim 1, wherein the method of applying the resin composition to the one surface of the base material includes transferring the resin composition adhered to the surface of the roll onto the one surface of the base material. The method is characterized in that
【００１１】本発明の請求項３に係る樹脂含浸方法は、
請求項１又は請求項２記載の樹脂含浸方法において、基
材の他方の面に樹脂組成物を接触させる方法が、基材を
所定の角度で傾斜させた状態で、流下する樹脂組成物を
基材の他方の面に接触させる方法であることを特徴とす
る。[0011] The resin impregnation method according to claim 3 of the present invention comprises:
3. The method for impregnating a resin according to claim 1 or 2, wherein the method of contacting the resin composition with the other surface of the substrate is based on the resin composition flowing down while the substrate is inclined at a predetermined angle. It is a method of contacting the other surface of the material.
【００１２】本発明の請求項４に係る積層板は、請求項
１から請求項３のいずれかに記載の樹脂含浸方法で液状
の樹脂組成物が含浸された樹脂含浸基材と、金属箔と
が、積層・成形されてなることを特徴とする。According to a fourth aspect of the present invention, there is provided a laminate comprising a resin impregnated base material impregnated with a liquid resin composition by the resin impregnation method according to any one of the first to third aspects, and a metal foil. Are laminated and formed.
【００１３】[0013]
【発明の実施の形態】本発明に係る樹脂含浸方法を図面
に基づいて説明する。図１は本発明に係る樹脂含浸方法
の、一実施の形態を説明する一部を破断して示した正面
図である。また、図２は本発明に係る樹脂含浸方法の、
一実施の形態で得られる樹脂含浸基材を説明する断面図
であり、（ａ）は基材に樹脂組成物を含浸した直後を表
し、（ｂ）は更に樹脂組成物を塗布した後を表す。DESCRIPTION OF THE PREFERRED EMBODIMENTS A resin impregnation method according to the present invention will be described with reference to the drawings. FIG. 1 is a partially cutaway front view illustrating an embodiment of a resin impregnation method according to the present invention. FIG. 2 shows the resin impregnation method according to the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing explaining the resin impregnation base material obtained in one Embodiment, (a) represents immediately after impregnating a resin composition to a base material, (b) represents after further applying a resin composition. .
【００１４】本発明に係る樹脂含浸方法の一実施の形態
は、図１に示すように、所定の角度で傾斜させたプレー
トパン１０と、樹脂塗布ロール１４と、基材１を供給す
る供給ロール１２と、を備えた含浸装置を用いる。な
お、プレートパン１０の上端部には樹脂供給槽が設けら
れており、下端部には樹脂受け槽が設けられている。そ
して、樹脂供給槽から供給されてプレートパン１０の上
面を流下した樹脂組成物２は、樹脂受け槽に流入した
後、樹脂供給槽に戻されるようになっており、これらの
間を循環するようになっている。なお、プレートパン１
０の傾斜する角度は特に限定するものではないが、１０
〜７０°、より好ましくは３０〜４５°傾斜させる。One embodiment of the resin impregnating method according to the present invention is, as shown in FIG. 1, a plate pan 10 inclined at a predetermined angle, a resin application roll 14, and a supply roll for supplying the substrate 1. 12 is used. Note that a resin supply tank is provided at the upper end of the plate pan 10, and a resin receiving tank is provided at the lower end. Then, the resin composition 2 supplied from the resin supply tank and flowing down the upper surface of the plate pan 10 flows into the resin receiving tank, and then returns to the resin supply tank, and circulates therebetween. It has become. In addition, plate pan 1
Although the angle of inclination of 0 is not particularly limited, it is 10 degrees.
It is inclined at an angle of -70 °, more preferably 30-45 °.
【００１５】また、樹脂塗布ロール１４の側方には、塗
布樹脂供給槽１６が設けられており、その塗布樹脂供給
槽１６内の樹脂組成物２が、量を制御されながら樹脂塗
布ロール１４に供給されて、樹脂塗布ロール１４の表面
に均一な厚みの樹脂組成物２の層を形成するようになっ
ている。A coating resin supply tank 16 is provided on the side of the resin coating roll 14, and the resin composition 2 in the coating resin supply tank 16 is supplied to the resin coating roll 14 while controlling the amount. The supplied resin composition forms a layer of the resin composition 2 having a uniform thickness on the surface of the resin application roll 14.
【００１６】そして、樹脂含浸基材を製造する場合に
は、供給ロール１２と樹脂塗布ロール１４との間に基材
１を架け渡した後、供給ロール１２から樹脂塗布ロール
１４の方向に基材１を進行させると共に、この基材１を
プレートパン１０の上面を流下する樹脂組成物２に接触
させて、基材１を樹脂組成物２の上側に位置させた状態
で保持する。なおこのとき、基材１の樹脂組成物２と接
触させた面（以下、接触面と記す）の反対側の面（以
下、開放面と記す）には樹脂組成物２を供給せず、開放
状態に保持した状態で、基材１の接触面に樹脂組成物２
を接触させる。When manufacturing the resin-impregnated base material, the base material 1 is laid between the supply roll 12 and the resin application roll 14, and then the base material is moved from the supply roll 12 to the resin application roll 14. As the substrate 1 advances, the substrate 1 is brought into contact with the resin composition 2 flowing down on the upper surface of the plate pan 10, and the substrate 1 is held in a state positioned above the resin composition 2. At this time, the resin composition 2 was not supplied to a surface (hereinafter, referred to as an open surface) opposite to a surface (hereinafter, referred to as a contact surface) of the substrate 1 in contact with the resin composition 2, While maintaining the state, the resin composition 2
Contact.
【００１７】すると、樹脂組成物２が毛細管現象によっ
て基材１の内部まで浸透して行き、基材１に樹脂組成物
２が含浸される。そして、プレートパン１０の下端部で
プレートパン１０の上面を流下する樹脂組成物２と基材
１が離れたときには、図２（ａ）に示すような、基材１
の内部に樹脂組成物２が浸透していると共に、基材１の
開放面（図で上側の面）と比べて接触面（図で下側の
面）に樹脂組成物２が多く付着した、樹脂付着量の表裏
ばらつきが大きな状態となる。なお、上記基材１を樹脂
組成物２の上側に位置させた状態で保持する時間は、基
材１の内部に樹脂組成物２が浸透する時間より長い時間
であれば特に限定するものではないが、一般的には５〜
１５秒程度が生産性とのバランスが優れ好ましい。Then, the resin composition 2 penetrates into the inside of the base material 1 by capillary action, and the base material 1 is impregnated with the resin composition 2. Then, when the resin composition 2 flowing down the upper surface of the plate pan 10 and the base material 1 are separated at the lower end of the plate pan 10, the base material 1 as shown in FIG.
The resin composition 2 has penetrated into the inside of the base material, and more of the resin composition 2 has adhered to the contact surface (the lower surface in the figure) as compared with the open surface (the upper surface in the figure) of the substrate 1. The front and back variation of the resin adhesion amount is large. The time for holding the base material 1 in a state of being positioned above the resin composition 2 is not particularly limited as long as the time is longer than the time for which the resin composition 2 permeates the inside of the base material 1. But generally 5
About 15 seconds is preferable because the balance with productivity is excellent.
【００１８】次いで、図１に示すように、表面に樹脂組
成物２が付着した樹脂塗布ロール１４を、基材１の開放
面に接触させることにより、樹脂塗布ロール１４の表面
に付着した樹脂組成物２を基材１の開放面に転写して塗
布する。なお、樹脂塗布ロール１４の表面に付着する樹
脂組成物２の量は、プレートパン１０の下端部でプレー
トパン１０の上面を流下する樹脂組成物２と基材１が離
れたときに生じている、基材１の開放面と接触面の表面
に付着する樹脂組成物２量の差に相当する量となってい
る。そのため、樹脂塗布ロール１４を接触させた後の樹
脂含浸基材は、図２（ｂ）に示すように、基材１の内部
に樹脂組成物２が浸透していると共に、基材１の開放面
と接触面に、ほぼ同じ量の樹脂組成物２が付着した状態
となり、樹脂量の表裏ばらつきが小さい樹脂含浸基材と
なっている。Next, as shown in FIG. 1, the resin coating roll 14 having the resin composition 2 adhered to the surface thereof is brought into contact with the open surface of the substrate 1 so that the resin composition adhered to the surface of the resin coating roll 14 is formed. The object 2 is transferred to the open surface of the substrate 1 and applied. The amount of the resin composition 2 adhering to the surface of the resin coating roll 14 is generated when the resin composition 2 flowing down the upper surface of the plate pan 10 at the lower end of the plate pan 10 and the substrate 1 are separated. The amount corresponds to the difference between the two amounts of the resin composition adhering to the open surface and the contact surface of the base material 1. Therefore, as shown in FIG. 2B, the resin impregnated base material after the resin application roll 14 is brought into contact with the resin composition 2 has penetrated into the base material 1 and opened the base material 1. Approximately the same amount of the resin composition 2 adheres to the surface and the contact surface, and the resin-impregnated base material has a small variation in the amount of resin between the front and back surfaces.
【００１９】なお、この基材１の開放面に樹脂組成物２
を塗布する方法は、上記のような樹脂塗布ロール１４の
表面に付着した樹脂組成物２を転写して塗布する方法に
限定するものではなく、例えば、開放面に、樹脂組成物
２をカーテン状に供給して塗布しても良く、樹脂組成物
２を噴霧して塗布しても良い。なお、樹脂塗布ロール１
４の表面に付着した樹脂組成物２を転写する方法の場
合、均一に塗布することができ好ましい。The resin composition 2 was applied to the open surface of the substrate 1.
The method of applying the resin composition 2 is not limited to the method of transferring and applying the resin composition 2 adhered to the surface of the resin application roll 14 as described above. And the resin composition 2 may be applied by spraying. In addition, the resin application roll 1
The method of transferring the resin composition 2 adhered to the surface of No. 4 is preferable because it can be uniformly applied.
【００２０】次いで、上記のようにして得られた樹脂含
浸基材を、必要に応じて加熱して半硬化させることによ
ってプリプレグを製造し、このプリプレグを所要枚数重
ねるとともに、金属箔をその片側又は両側に配して積層
して積層物を形成し、その積層物を加熱・加圧すること
により成形してバッチ方式で積層板を製造したり、上記
のようにして得られた樹脂含浸基材を、１枚ないしは複
数枚積層し、その片側又は両側に金属箔を配して積層し
た後、ラミネートロールにて連続的に圧着し、次いでそ
の圧着物を加熱することにより成形して連続的に積層板
を製造する。すると、金属箔が接着していない部分が少
ない積層板が得られる。Next, the resin-impregnated base material obtained as described above is heated and semi-cured, if necessary, to produce a prepreg. The required number of prepregs are stacked, and the metal foil is placed on one side or the other side. A laminate is formed by arranging and laminating on both sides, and the laminate is molded by heating and pressurizing to produce a laminate by a batch method, or the resin-impregnated base material obtained as described above. After laminating one or more sheets, arranging and laminating metal foil on one or both sides thereof, continuously pressing them with a laminating roll, then molding the pressed product by heating to continuously laminate Manufacture boards. Then, a laminated board having few portions where the metal foil is not bonded is obtained.
【００２１】なお、上記金属箔は、金属製の箔であれば
特に限定するものではなく、銅箔、ニッケル箔等が挙げ
られる。この金属箔の厚みとしては、０．０１２〜０．
０７０ｍｍが一般的である。The metal foil is not particularly limited as long as it is a metal foil, and examples thereof include copper foil and nickel foil. The thickness of the metal foil is 0.012-0.
070 mm is common.
【００２２】また、本発明に用いる基材１は、内部や表
面に空隙を有するシート状のものであり、例えば、ガラ
ス等の無機質繊維や、ポリエステル、ポリアミド、ポリ
アクリル、ポリイミド等の有機質繊維や、木綿等の天然
繊維を用いた、織布、不織布、紙等が挙げられる。な
お、ガラス繊維製の織布（ガラスクロス）を用いると、
得られる積層板の耐熱性及び耐湿性が優れ好ましい。こ
の基材１の厚みとしては、０．０５〜０．２ｍｍが一般
的である。The substrate 1 used in the present invention is in the form of a sheet having voids inside and on the surface. For example, inorganic fibers such as glass, organic fibers such as polyester, polyamide, polyacryl, and polyimide are used. And woven fabrics, non-woven fabrics and papers using natural fibers such as cotton. In addition, if woven cloth (glass cloth) made of glass fiber is used,
The heat resistance and moisture resistance of the obtained laminate are excellent and preferable. The thickness of the substrate 1 is generally 0.05 to 0.2 mm.
【００２３】また、本発明に用いる樹脂組成物２は、エ
ポキシ樹脂系、フェノール樹脂系、ポリイミド樹脂系、
不飽和ポリエステル樹脂系、ポリフェニレンエーテル樹
脂系等の単独、変性物、混合物のように、熱硬化性樹脂
組成物全般を用いることができる。この樹脂組成物２中
には、熱硬化性樹脂を必須として含有し、必要に応じて
その熱硬化性樹脂の硬化剤、硬化促進剤、無機充填材及
び溶剤等を含有することができる。なお、プレートパン
１０上に供給する樹脂組成物２と、樹脂塗布ロール１４
の表面に付着させる樹脂組成物２の組成や粘度等は、多
少異なっていても良い。The resin composition 2 used in the present invention comprises an epoxy resin, a phenol resin, a polyimide resin,
The thermosetting resin composition as a whole, such as an unsaturated polyester resin, a polyphenylene ether resin alone, a modified product, or a mixture, can be used. The resin composition 2 contains a thermosetting resin as an essential component, and may contain a curing agent, a curing accelerator, an inorganic filler, a solvent, and the like for the thermosetting resin as necessary. The resin composition 2 to be supplied onto the plate pan 10 and the resin coating roll 14
The composition, viscosity and the like of the resin composition 2 to be adhered to the surface may be slightly different.
【００２４】なお、樹脂組成物２が、不飽和ポリエステ
ル樹脂、ビニルエステル樹脂等のラジカル重合型熱硬化
性樹脂を含有するラジカル重合型熱硬化性樹脂組成物の
場合、ラミネートロールにて圧着した後成形する方法で
連続的に積層板を製造することができるため、積層板の
生産性が優れ好ましい。なお、このようなラジカル重合
型熱硬化性樹脂組成物は一般に粘度が高く、含浸しにく
いが、本発明に係る樹脂含浸方法を用いると、含浸性が
優れると共に樹脂量の表裏ばらつきが小さい樹脂含浸基
材が得られるため、内部に気泡が残留しにくいと共に金
属箔が接着していない部分が少ない積層板が、生産性良
く得られ好ましい。なおラジカル重合型熱硬化性樹脂組
成物には、ラジカル重合型熱硬化性樹脂と共に、必要に
応じて、ラジカル開始剤や、スチレン、ジアリルフタレ
ート等のラジカル重合性モノマーや、無機、有機の充填
材や、充填材の沈降防止剤等を適宜に配合しても良い。In the case where the resin composition 2 is a radical polymerization type thermosetting resin composition containing a radical polymerization type thermosetting resin such as an unsaturated polyester resin or a vinyl ester resin, the resin composition 2 is pressed with a laminating roll. Since the laminate can be continuously manufactured by the molding method, the productivity of the laminate is excellent and preferable. In addition, such a radical polymerization type thermosetting resin composition generally has a high viscosity and is difficult to be impregnated. Since a base material is obtained, a laminated plate in which air bubbles are unlikely to remain inside and in which a portion to which a metal foil is not adhered is small is preferably obtained with high productivity. In addition, the radical polymerization type thermosetting resin composition, together with the radical polymerization type thermosetting resin, if necessary, a radical initiator, a radical polymerizable monomer such as styrene and diallyl phthalate, and an inorganic or organic filler. Alternatively, an anti-settling agent for the filler may be appropriately blended.
【００２５】なお、上記の実施の形態は、プレートパン
１０を傾斜して設け、そのプレートパン１０の上面を流
下する樹脂組成物２に、基材１を接触させる実施の形態
を説明したが、プレートパン１０を水平に設けておき、
静止状態又はポンプによって循環する樹脂組成物２に、
基材１を接触させても良い。この場合も同様に、その後
基材１の上記一方の面に樹脂組成物２を塗布すると、樹
脂量の表裏ばらつきが小さい樹脂含浸基材が得られる。
なお、基材１を傾斜させた状態で、基材１の接触面に流
下する樹脂組成物２を接触させる方法の場合、接触面に
安定して樹脂組成物２を接触させることができ好まし
い。In the above embodiment, the plate pan 10 is provided in an inclined manner, and the substrate 1 is brought into contact with the resin composition 2 flowing down the upper surface of the plate pan 10. Plate pan 10 is provided horizontally,
To the resin composition 2 which is stationary or circulated by a pump,
The substrate 1 may be brought into contact. Similarly, in this case, when the resin composition 2 is applied to the one surface of the base material 1 thereafter, a resin-impregnated base material with small variation in the amount of resin on the front and back sides can be obtained.
In the case where the resin composition 2 flowing down to the contact surface of the substrate 1 is brought into contact with the substrate 1 in an inclined state, the resin composition 2 can be stably brought into contact with the contact surface, which is preferable.
【００２６】[0026]
【実施例】（実施例１）樹脂組成物として、ビニルエス
テル樹脂［昭和高分子株式会社製、品名Ｓ５１０］を１
００重量部と、ラジカル開始剤（クメンハイドロパーオ
キサイド）を１重量部と、を配合したものに、スチレン
を配合して、粘度を０．２Ｐａ・ｓに調整したラジカル
重合型熱硬化性樹脂組成物を用いた。また、基材とし
て、厚さ０．１８ｍｍのガラスクロス［旭シュエーベル
株式会社製、品名７６２８］を用いた。EXAMPLES (Example 1) As a resin composition, a vinyl ester resin [manufactured by Showa Polymer Co., Ltd., trade name S510] was used.
Radical polymerization type thermosetting resin composition in which styrene is mixed with a mixture of 00 parts by weight and 1 part by weight of a radical initiator (cumene hydroperoxide) to adjust the viscosity to 0.2 Pa · s. Was used. In addition, a glass cloth [manufactured by Asahi Schwebel Co., Ltd., product name 7628] having a thickness of 0.18 mm was used as a base material.
【００２７】そして、図１に示すような、傾斜させたプ
レートパンと、樹脂塗布ロールと、供給ロールと、を備
えた含浸装置を用いて、ガラスクロスの上側の面（開放
面）を開放状態に保持しながら、ガラスクロスの下側の
面（接触面）にプレートパン上の樹脂組成物を接触させ
て、ガラスクロスを樹脂組成物の上側に位置させた状態
に１０秒保持することにより、ガラスクロスに樹脂組成
物を含浸させた。なお、ガラスクロスは、２ｍ／分の速
度で連続的に供給した。また、プレートパンは、３０°
傾斜させて設け、その上面に樹脂組成物を流下させた。Then, the upper surface (open surface) of the glass cloth is opened by using an impregnating device having an inclined plate pan, a resin application roll, and a supply roll as shown in FIG. While holding the glass cloth on the lower surface (contact surface) of the glass cloth with the resin composition on the plate pan, and holding the glass cloth on the upper side of the resin composition for 10 seconds. The glass cloth was impregnated with the resin composition. The glass cloth was continuously supplied at a speed of 2 m / min. The plate pan is 30 °
The resin composition was allowed to flow down on the upper surface.
【００２８】次いで、その表面に付着する樹脂組成物の
量を、プレートパンの下端部でプレートパンの上面を流
下する樹脂組成物とガラスクロスが離れたときに生じて
いる、ガラスクロスの開放面と接触面の表面に付着す
る、樹脂組成物の量の差に相当する量に調整した樹脂塗
布ロールを、ガラスクロスの開放面に接触させて、樹脂
塗布ロールの表面に付着した樹脂組成物をガラスクロス
の開放面に転写することにより塗布して樹脂含浸基材を
得た。Next, the amount of the resin composition adhering to the surface of the glass cloth is determined by measuring the amount of the resin composition adhering to the surface of the glass pan at the lower end of the plate pan when the resin composition flowing down the upper surface of the plate pan is separated from the glass cloth. The resin coating roll adjusted to an amount corresponding to the difference in the amount of the resin composition, which adheres to the surface of the contact surface, is brought into contact with the open surface of the glass cloth to remove the resin composition adhered to the surface of the resin application roll. The resin-impregnated substrate was obtained by coating by transferring to the open surface of a glass cloth.
【００２９】次いで、この樹脂含浸基材１枚の両外側に
金属箔として厚み１８μｍの銅箔［日鉱グールドフォイ
ル株式会社製、品名ＪＴＣ］を配して積層した後、ラミ
ネートロールで圧着し、次いで加熱硬化炉で１０５℃３
０分加熱硬化して板厚０．２ｍｍの積層板を連続的に得
た。Next, a 18-μm-thick copper foil [manufactured by Nikko Gould Foil Co., Ltd., trade name: JTC] is disposed on both outer sides of one of the resin-impregnated base materials as a metal foil, and then laminated and pressed. 105 ° C in a heat curing oven 3
It was cured by heating for 0 minutes to continuously obtain a laminate having a thickness of 0.2 mm.
【００３０】（比較例１）樹脂組成物が付着していない
樹脂塗布ロールを接触させたこと以外は実施例１と同様
にして樹脂含浸基材及び積層板を得た。Comparative Example 1 A resin-impregnated base material and a laminate were obtained in the same manner as in Example 1 except that a resin coating roll to which no resin composition had adhered was contacted.
【００３１】（評価、結果）実施例１及び比較例１で得
られた樹脂含浸基材の表裏の樹脂付着量を評価した。そ
の結果は、実施例１で得られた樹脂含浸基材は、開放面
側が１８０ｇ／ｍ2、接触面側が２００ｇ／ｍ2であった
が、比較例１で得られた樹脂含浸基材は、開放面側が５
ｇ／ｍ2、接触面側が２００ｇ／ｍ2であり、本発明によ
ると、樹脂付着量の表裏ばらつきが小さい樹脂含浸基材
が得られることが確認された。(Evaluation and Results) The resin-impregnated substrates obtained in Example 1 and Comparative Example 1 were evaluated for the amount of resin adhering to the front and back surfaces. As a result, the obtained resin-impregnated base material in Example 1, the open side is 180 g / m2, although the contact surface was 200 g / m2, resin-impregnated base material obtained in Comparative Example 1, 5 on open side
g / m2 , and the contact surface side was 200 g / m2 , and it was confirmed that a resin-impregnated base material having a small variation in the amount of adhering resin on both sides could be obtained according to the present invention.
【００３２】また、実施例１及び比較例１で得られた積
層板の、銅箔が接着していないことによって生じている
銅箔の膨れの有無を目視で評価した。その結果は、実施
例１で得られた積層板は膨れが観測されなかったが、比
較例１で得られた積層板は膨れが確認され、本発明に係
る積層板は、金属箔が接着していない部分が生じにくく
なっていることが確認された。Further, the laminates obtained in Example 1 and Comparative Example 1 were visually evaluated for the presence or absence of blistering of the copper foil caused by the non-adherence of the copper foil. As a result, although no swelling was observed in the laminate obtained in Example 1, swelling was confirmed in the laminate obtained in Comparative Example 1, and the laminate according to the present invention had a metal foil adhered. It has been confirmed that the unexposed portion is less likely to occur.
【００３３】[0033]
【発明の効果】本発明の請求項１から請求項３に係る樹
脂含浸方法は、基材に樹脂組成物を含浸した後、基材の
上記一方の面に樹脂組成物を塗布するため、樹脂付着量
の表裏ばらつきが小さい樹脂含浸基材が得られる。According to the resin impregnation method according to any one of claims 1 to 3 of the present invention, the resin composition is impregnated into the base material, and then the resin composition is applied to the one surface of the base material. A resin-impregnated base material having a small variation in the amount of adhesion between the front and back sides can be obtained.
【００３４】本発明の請求項４に係る積層板は、請求項
１から請求項３のいずれかに記載の樹脂含浸方法で液状
の樹脂組成物が含浸された樹脂含浸基材を用いるため、
金属箔が接着していない部分が少ない積層板となる。The laminate according to claim 4 of the present invention uses a resin-impregnated base material impregnated with a liquid resin composition by the resin impregnation method according to any one of claims 1 to 3.
A laminate having few portions where the metal foil is not bonded is obtained.
【図１】本発明に係る樹脂含浸方法の、一実施の形態を
説明する一部を破断して示した正面図である。FIG. 1 is a partially cutaway front view illustrating an embodiment of a resin impregnation method according to the present invention.
【図２】本発明に係る樹脂含浸方法の、一実施の形態で
得られる樹脂含浸基材を説明する断面図であり、（ａ）
は基材に樹脂組成物を含浸した直後を表し、（ｂ）は更
に樹脂組成物を塗布した後を表す。FIG. 2 is a cross-sectional view illustrating a resin-impregnated base material obtained in one embodiment of the resin impregnation method according to the present invention, and (a).
Represents the state immediately after impregnation of the base material with the resin composition, and (b) represents the state after further application of the resin composition.
１ 基材 ２ 樹脂組成物 １０ プレートパン １２ 供給ロール １４ 樹脂塗布ロール １６ 塗布樹脂供給槽 Reference Signs List 1 base material 2 resin composition 10 plate pan 12 supply roll 14 resin application roll 16 application resin supply tank
───────────────────────────────────────────────────── フロントページの続き (72)発明者 東林 泰郎 大阪府門真市大字門真1048番地松下電工株 式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuo Higashibayashi 1048 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Works, Ltd.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8535698AJPH11277534A (en) | 1998-03-31 | 1998-03-31 | Resin impregnating method and laminated board |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8535698AJPH11277534A (en) | 1998-03-31 | 1998-03-31 | Resin impregnating method and laminated board |
| Publication Number | Publication Date |
|---|---|
| JPH11277534Atrue JPH11277534A (en) | 1999-10-12 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8535698APendingJPH11277534A (en) | 1998-03-31 | 1998-03-31 | Resin impregnating method and laminated board |
| Country | Link |
|---|---|
| JP (1) | JPH11277534A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100529827B1 (en)* | 1999-10-26 | 2005-11-21 | 후루카와 스카이 가부시키가이샤 | Resin-coated metal sheet for parts of electronic machinery and tools excellent in conductivity, production method thereof, and parts of electronic machinery and tools using the same |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100529827B1 (en)* | 1999-10-26 | 2005-11-21 | 후루카와 스카이 가부시키가이샤 | Resin-coated metal sheet for parts of electronic machinery and tools excellent in conductivity, production method thereof, and parts of electronic machinery and tools using the same |
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