JP2002370301A - Laminated sheet manufacturing method - Google Patents
Laminated sheet manufacturing methodInfo
- Publication number
- JP2002370301A JP2002370301A JP2001184452A JP2001184452A JP2002370301A JP 2002370301 A JP2002370301 A JP 2002370301A JP 2001184452 A JP2001184452 A JP 2001184452A JP 2001184452 A JP2001184452 A JP 2001184452A JP 2002370301 A JP2002370301 A JP 2002370301A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy resin
- glass
- weight
- prepreg
- nonwoven fabric
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 75
- 239000003822 epoxy resin Substances 0.000 claims abstract description 68
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 68
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000002759 woven fabric Substances 0.000 claims description 34
- 238000001035 drying Methods 0.000 claims description 17
- 238000010030 laminating Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 7
- 239000004744 fabric Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 19
- 229920005989 resin Polymers 0.000 description 15
- 239000011347 resin Substances 0.000 description 15
- 239000002904 solvent Substances 0.000 description 10
- 239000004593 Epoxy Substances 0.000 description 8
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000002966 varnish Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000011889 copper foil Substances 0.000 description 5
- 239000011256 inorganic filler Substances 0.000 description 5
- 229910003475 inorganic filler Inorganic materials 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 229920003986 novolac Polymers 0.000 description 4
- 229920003261 Durez Polymers 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N 4-methylimidazole Chemical compound CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 1
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コンポジット積層
板の製造方法に関し、特にガラスクロスとガラス不織布
との複合プリプレグを連続的に製造することができるも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a composite laminate, and more particularly to a method for continuously producing a composite prepreg of a glass cloth and a glass nonwoven fabric.
【０００２】[0002]
【従来の技術】印刷回路基板として、ガラス不織布を中
間層基材としガラス織布を表面層基材とし、エポキシ樹
脂を含浸させ加熱加圧成形したコンポジット積層板は、
従来、ガラス不織布に中間層樹脂を含浸させ乾燥したプ
リプレグとガラス織布にエポキシ樹脂を含浸させ乾燥し
たプリプレグをそれぞれ個別に製造し、その後それらを
重ね合わせて加熱加圧成形し製造されている。しかしな
がら、プリプレグを個別製造するためには、それぞれの
塗布装置および作業者が必要であり、またそれらを複数
枚重ね合わせる工程も必要である。また溶剤量の多いワ
ニスを乾燥させて樹脂をＢステージ化させるため、多量
の揮発溶剤を大気に排出することとなり、また多大なエ
ネルギーを消費するため、環境への負荷が高く好ましく
ない。これらの問題を解決するため、最近では一括塗布
方式が提唱されている。すなわち、コンポジット積層板
の製造において、まずガラス織布に溶剤量の少ないエポ
キシ樹脂ワニスを塗布し、次いで、エポキシ樹脂塗布面
にガラス不織布を重ね合わせ、さらに、ガラス不織布の
上から溶剤量の少ない中間層樹脂を塗布し、加熱乾燥し
てプリプレグを作製し、最後にこれらプリプレグ２枚を
ガラス不織布面を内側にして重ね合わせ、加熱加圧して
積層板を製造する方法である。しかし、これらの方法で
も加熱加圧成形前に２枚のプリプレグを重ね合わせる工
程が必要であった。2. Description of the Related Art As a printed circuit board, a composite laminate made of glass non-woven fabric as an intermediate layer base material, glass woven fabric as a surface layer base material, impregnated with epoxy resin, and heated and pressed,
Conventionally, a prepreg in which a glass nonwoven fabric is impregnated with an interlayer resin and dried is manufactured, and a prepreg in which a glass woven fabric is impregnated with an epoxy resin and dried are separately manufactured, and then they are stacked and heated and pressed to form. However, in order to individually manufacture prepregs, respective coating apparatuses and operators are required, and a step of superposing a plurality of them is also required. In addition, since the varnish containing a large amount of solvent is dried to make the resin B-stage, a large amount of volatile solvent is discharged to the atmosphere, and a large amount of energy is consumed. In order to solve these problems, a batch coating method has recently been proposed. That is, in the production of a composite laminate, first, an epoxy resin varnish with a small amount of a solvent is applied to a glass woven fabric, and then a glass nonwoven fabric is superimposed on the epoxy resin coated surface. In this method, a prepreg is prepared by applying a layer resin and drying by heating, and finally, two prepregs are stacked with the glass nonwoven fabric surface inside, and heated and pressed to produce a laminate. However, even in these methods, a step of overlapping two prepregs before the heat and pressure molding was required.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、プレ
ス前の組み合わせ工程が不要であり、生産能力を向上す
ることが可能となるコンポジット積層板の製造方法を提
供することである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for manufacturing a composite laminate which does not require a combination step before pressing and can improve the production capacity.
【０００４】[0004]
【課題を解決するための手段】本発明は、（１）ガラス
織布の片面側からエポキシ樹脂（ａ）を塗布する工程、
前記エポキシ樹脂（ａ）を塗布した面にガラス不織布を
重ね合わせ、加熱乾燥する工程、前記ガラス不織布に中
間層エポキシ樹脂（ｂ）を塗布する工程、前記ガラス不
織布の上面に、他のガラス織布を重ね合わせて加熱乾燥
してプリプレグを作製する工程を有することを特徴とす
るコンポジット積層板製造方法、（２）前記プリプレグ
を作製する工程後にエポキシ樹脂（ｃ）を含浸させる工
程を有する第（１）項に記載のコンポジット積層板の製
造方法、（３）中間層エポキシ樹脂（ｂ）は、エポキシ
樹脂（硬化剤を含む）１００重量部に対して充填材８０
〜１５０重量部を含む第（１）又は（２）項に記載のコ
ンポジット積層板の製造方法、である。According to the present invention, there is provided (1) a step of applying an epoxy resin (a) from one side of a glass woven fabric;
A step of superposing a glass nonwoven fabric on the surface coated with the epoxy resin (a) and heating and drying; a step of applying an intermediate layer epoxy resin (b) to the glass nonwoven fabric; A method of producing a prepreg by superimposing and drying the prepreg, and (2) a method of impregnating with an epoxy resin (c) after the step of producing the prepreg. (3) The method for producing a composite laminate according to the item (3), wherein (3) the intermediate layer epoxy resin (b) is a filler 80 with respect to 100 parts by weight of the epoxy resin (including the curing agent).
The method for producing a composite laminate according to the above item (1) or (2), wherein the composite laminate contains 〜150 parts by weight.
【０００５】[0005]
【発明の実施の形態】本発明において、プリプレグを得
るまでの工程の一例（概略）を図１に示す。図１に示す
ように、巻き出し装置から巻き出されたガラス織布１の
上面にエポキシ樹脂（ａ）２をワニス状態でコーター３
により所定量塗布し、その上面よりガラス不織布４を重
ね合わせた後、乾燥装置５を通し溶剤を加熱蒸発させ
る。次に、中間層エポキシ樹脂（ｂ）６をコーター７に
より所定厚み塗布する。その後、ガラス織布１４をガラ
ス不織布面に重ね合わせた後、乾燥装置８を通して溶剤
を加熱蒸発させる。得られたプリプレグをカッター１２
により所定長さに切断または切断しないで連続的に巻き
取ることも可能である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example (schematic) of a process for obtaining a prepreg in the present invention. As shown in FIG. 1, an epoxy resin (a) 2 is coated on an upper surface of a glass woven fabric 1 unwound from an unwinding apparatus in a varnish state.
After the glass nonwoven fabric 4 is overlaid on the upper surface thereof, the solvent is heated and evaporated through a drying device 5. Next, the intermediate layer epoxy resin (b) 6 is applied by a coater 7 to a predetermined thickness. Then, the glass woven fabric 14 is overlaid on the glass nonwoven fabric surface, and the solvent is heated and evaporated through the drying device 8. The obtained prepreg is used as a cutter 12
It is also possible to cut it to a predetermined length or to wind it up continuously without cutting.
【０００６】本発明では、ガラス織布の片面からエポキ
シ樹脂（ａ）を塗布する工程を有する。本発明で用いる
エポキシ樹脂（ａ）としては、例えばビスフェノール型
エポキシ樹脂、ノボラック型エポキシ樹脂等が挙げられ
る。これらの中でもビスフェノールＡ型エポキシ樹脂が
好ましい。これにより、銅箔との密着性を向上できる。
また、コストも低減できる。前記エポキシ樹脂（ａ）
は、特に限定されないが、ワニスとして塗布されること
が好ましい。これにより、ガラス織布への含浸性が向上
する。前記ワニスは、特に限定されないが、樹脂固形分
が全体（樹脂と溶剤）の３５〜８５重量％が好ましく、
特に４０〜７０重量％が好ましい。樹脂固形分が前記下
限値未満であるとガラス織布への含浸量が低下する場合
があり、前記上限値を超えると粘度が高すぎて含浸性が
低下する場合がある。また、本発明に用いるガラス織布
は、一般的なものを使用できる。The present invention includes a step of applying an epoxy resin (a) from one side of a glass woven fabric. Examples of the epoxy resin (a) used in the present invention include a bisphenol-type epoxy resin and a novolak-type epoxy resin. Among these, bisphenol A type epoxy resin is preferable. Thereby, the adhesiveness with the copper foil can be improved.
In addition, costs can be reduced. The epoxy resin (a)
Is not particularly limited, but is preferably applied as a varnish. Thereby, the impregnation property to the glass woven fabric is improved. The varnish is not particularly limited, but preferably has a resin solid content of 35 to 85% by weight of the whole (resin and solvent),
Particularly, 40 to 70% by weight is preferable. If the resin solid content is less than the lower limit, the amount of impregnation into the glass woven fabric may decrease, and if it exceeds the upper limit, the viscosity may be too high and the impregnation may decrease. Further, as the glass woven fabric used in the present invention, a general one can be used.
【０００７】前記エポキシ樹脂（ａ）には、特に限定さ
れないが、エポキシ樹脂１００重量部に対して無機充填
材を１〜５重量部配合することが好ましく、特に２〜４
重量部配合することが好ましい。これにより、樹脂にチ
キソ性を付与し、ガラス織布内に充分保持できる。無機
充填材の配合量が前記下限値未満であると無機充填材の
配合効果が不十分となる場合があり、前記上限値を超え
るとガラス織布への含浸性が低下する場合がある。The epoxy resin (a) is not particularly limited, but preferably contains 1 to 5 parts by weight of an inorganic filler with respect to 100 parts by weight of the epoxy resin, and more preferably 2 to 4 parts by weight.
It is preferable to mix by weight. This imparts thixotropic properties to the resin and allows the resin to be sufficiently retained in the glass woven fabric. When the compounding amount of the inorganic filler is less than the lower limit, the compounding effect of the inorganic filler may be insufficient, and when it exceeds the upper limit, the impregnating property to the glass woven fabric may decrease.
【０００８】前記エポキシ樹脂は、特に限定されない
が、ガラス織布１００重量部に対して５０〜１５０重量
部塗布することが好ましく、特に６０〜１３０重量部塗
布することが好ましい。塗布量が前記下限値未満である
と中間層エポキシ樹脂（ｂ）またはガラス不織布との密
着性が低下する場合がある。前記上限値を超えると樹脂
分が過剰となり、積層板の熱時特性が低下する場合があ
る。Although not particularly limited, the epoxy resin is preferably applied in an amount of 50 to 150 parts by weight, more preferably 60 to 130 parts by weight, based on 100 parts by weight of the glass woven fabric. If the coating amount is less than the lower limit, the adhesion to the intermediate layer epoxy resin (b) or the glass nonwoven fabric may be reduced. If the ratio exceeds the upper limit, the resin content becomes excessive, and the thermal properties of the laminate may deteriorate.
【０００９】前記エポキシ樹脂（ａ）の塗布は、例えば
コンマロールコーター、ナイフコーター、ダイスコータ
ー、リバースコーター等で行うことができる。これらの
中でもコンマロールコーター、ナイフコーターが好まし
い。The application of the epoxy resin (a) can be performed, for example, with a comma roll coater, a knife coater, a die coater, a reverse coater or the like. Among them, a comma roll coater and a knife coater are preferable.
【００１０】本発明では、前記エポキシ樹脂（ａ）を塗
布した面にガラス不織布を重ね合わせ、加熱乾燥する工
程を有する。これにより、表面層と中間層の密着力を向
上できる。本発明に用いるガラス不織布は、特に限定さ
れないが、単位面積当たり２５〜１５０ｇ／ｍ2が好ま
しい。また、前記ガラス織布とガラス不織布との重ね合
わせは、特に限定されないが、ゴムロール等を使用する
ことができる。なお、本実施形態では、加熱装置５によ
り、前記エポキシ樹脂（ａ）２を塗布したガラス織布１
等を加熱する。これにより、不要な溶剤を除去できる。
加熱する温度は、特に限定されないが、１２０〜１８０
℃が好ましく、特に１３０〜１７０℃である。加熱時間
は、特に限定されないが、１〜５分が好ましく、特に２
〜４分が好ましい。The present invention has a step of superposing a glass nonwoven fabric on the surface coated with the epoxy resin (a) and drying by heating. Thereby, the adhesion between the surface layer and the intermediate layer can be improved. The glass nonwoven fabric used in the present invention is not particularly limited, but is preferably 25 to 150 g / m 2 per unit area. Further, the lamination of the glass woven fabric and the glass nonwoven fabric is not particularly limited, but a rubber roll or the like can be used. In the present embodiment, the glass woven fabric 1 coated with the epoxy resin (a) 2 is heated by the heating device 5.
Heat etc. Thereby, an unnecessary solvent can be removed.
The heating temperature is not particularly limited, but may be 120 to 180.
C. is preferred, especially between 130 and 170C. The heating time is not particularly limited, but is preferably 1 to 5 minutes, particularly 2 minutes.
~ 4 minutes is preferred.
【００１１】本発明では、前記ガラス不織布に中間層エ
ポキシ樹脂を塗布する工程を有する。これにより、ガラ
ス織布とガラス不織布に別々にエポキシ樹脂を含浸する
場合に比較して、生産性を向上することができる。本発
明で用いる中間層エポキシ樹脂（ｂ）は、例えばビスフ
ェノール型エポキシ樹脂、ノボラック型エポキシ樹脂を
挙げることができる。前記中間層エポキシ樹脂は、特に
限定されないが、エポキシ樹脂（硬化剤を含む）１００
重量部に対して８０〜１５０重量部の充填材を含むこと
が好ましく、特に９０〜１４０重量部が好ましい。これ
により、熱膨張率を低減できる。更に、寸法安定性を向
上できる。充填材が前記下限値未満であると上記２つの
改善効果が低下する場合があり、前記上限値を超えると
成形性及び熱時特性も低下する場合がある。The present invention includes a step of applying an intermediate layer epoxy resin to the glass nonwoven fabric. Thereby, productivity can be improved as compared with the case where the glass woven fabric and the glass nonwoven fabric are separately impregnated with the epoxy resin. Examples of the intermediate layer epoxy resin (b) used in the present invention include a bisphenol epoxy resin and a novolak epoxy resin. The intermediate layer epoxy resin is not particularly limited, but may be an epoxy resin (including a curing agent) 100
It is preferable to contain 80 to 150 parts by weight of the filler with respect to parts by weight, and particularly preferably 90 to 140 parts by weight. Thereby, the coefficient of thermal expansion can be reduced. Further, dimensional stability can be improved. If the amount of the filler is less than the lower limit, the above two improvement effects may be reduced. If the amount of the filler is more than the upper limit, the moldability and the thermal properties may be reduced.
【００１２】前記充填材としては、例えば水酸化アルミ
ニウム、水酸化マグネシウム等の水酸化物、炭酸カルシ
ウム、タルク、クレー、シリカ等が挙げられる。前記中
間層エポキシ樹脂（ｂ）の樹脂固形分は、特に限定され
ないが、全体の６５〜９５重量％が好ましく、特に８０
〜９５重量％が好ましい。これにより、ペースト状で塗
布することが可能になり、それによって溶剤使用量及び
乾燥時間を低減できる。Examples of the filler include hydroxides such as aluminum hydroxide and magnesium hydroxide, calcium carbonate, talc, clay, silica and the like. Although the resin solid content of the intermediate layer epoxy resin (b) is not particularly limited, it is preferably 65 to 95% by weight, and particularly preferably 80 to 95% by weight.
~ 95% by weight is preferred. This makes it possible to apply in paste form, thereby reducing the amount of solvent used and the drying time.
【００１３】前記中間層エポキシ樹脂（ｂ）の塗布量
は、特に限定されないが、ガラス不織布１００重量部に
対して５００〜１５００重量部が好ましく、特に６００
〜１４００重量部が好ましい。塗布量が前記下限値未満
であると密着性及び熱時特性が低下する場合があり、前
記上限値を超えると成形性及び熱時特性が低下する場合
がある。前記中間層エポキシ樹脂（ｂ）の塗布は、例え
ばコンマロールコーター、ナイフコーター、ダイスコー
ター、リバースコーター等により行うことができる。こ
れらの中でもコンマロールコーター、ナイフコーターが
好ましい。これにより、高粘度材料を容易に塗布でき
る。The amount of the intermediate layer epoxy resin (b) applied is not particularly limited, but is preferably 500 to 1500 parts by weight, more preferably 600 to 1500 parts by weight, per 100 parts by weight of the glass nonwoven fabric.
〜1400 parts by weight are preferred. If the coating amount is less than the lower limit, the adhesiveness and the hot property may decrease, and if it exceeds the upper limit, the moldability and the hot property may decrease. The application of the intermediate layer epoxy resin (b) can be performed by, for example, a comma roll coater, a knife coater, a die coater, a reverse coater, or the like. Among them, a comma roll coater and a knife coater are preferable. Thereby, a high-viscosity material can be easily applied.
【００１４】本発明では、中間層エポキシ樹脂（ｂ）を
塗布したガラス不織布の上面に、他のガラス織布を重ね
合わせ加熱乾燥してプリプレグを作製する工程を有す
る。これにより、ガラス織布とガラス不織布に別々にエ
ポキシ樹脂を含浸し、これらを重ね合わせる場合、ある
いはガラス織布とガラス不織布からなるプリプレグを２
枚重ね合わせる場合に比較して、プリプレグの生産効率
を向上できる。また、前記ガラス不織布に塗布された中
間層エポキシ樹脂を加熱乾燥する前にガラス織布を重ね
合わせるので、ガラス不織布とガラス織布との密着力を
高めることができ、接着媒体のコーティングを不要にで
きる。本工程で使用するガラス織布は、最初の工程で使
用するガラス織布と同じものであっても、異なる種類で
も構わない。本工程でガラス織布の重ね合わせは、例え
ばロール等を用いる方法を使用することができる。これ
らの中でもゴムロールでラミネートすることが好まし
い。これにより、気泡を入れることなく重ね合わせるこ
とができる。また、前記加熱乾燥は、特に限定されない
が、１２０〜２００℃が好ましく、特に１３０〜１８０
℃が好ましい。加熱時間は、特に限定されないが、１〜
５分間が好ましく、特に２〜４分間が好ましい。The present invention includes a step of overlaying another glass woven fabric on the upper surface of the glass nonwoven fabric to which the intermediate layer epoxy resin (b) has been applied, and heating and drying the prepreg to produce a prepreg. In this case, the glass woven fabric and the glass nonwoven fabric are separately impregnated with the epoxy resin, and the epoxy resin is impregnated with the epoxy resin.
The prepreg production efficiency can be improved as compared with the case where sheets are stacked. In addition, since the glass woven fabric is overlapped before heating and drying the intermediate layer epoxy resin applied to the glass nonwoven fabric, the adhesion between the glass nonwoven fabric and the glass woven fabric can be increased, and the coating of the adhesive medium is not required. it can. The glass woven fabric used in this step may be the same as the glass woven cloth used in the first step, or may be a different type. In this step, a method using a roll or the like can be used for laminating the glass woven fabric. Of these, lamination with a rubber roll is preferred. Thereby, it is possible to superimpose without introducing bubbles. Further, the heating and drying is not particularly limited, but is preferably performed at 120 to 200 ° C., particularly 130 to 180 ° C.
C is preferred. The heating time is not particularly limited,
5 minutes is preferable, and 2 to 4 minutes is particularly preferable.
【００１５】本実施形態では、前記ガラス織布１４を重
ね合わせた後、エポキシ樹脂（ｃ）９及び１６を塗布す
る工程を有する。これにより、表面層に樹脂が充分に存
在することができるため、プリプレグと銅箔との接着性
を更に向上できる。ガラス織布面へのエポキシ樹脂
（ｃ）の塗布は、例えばガラス織布の上側にはコンマロ
ールコーター、ナイフコーター、ダイスコーター、リバ
ースコーター等を使用できる。なお、ガラス織布の下側
は、通常ロールコーターを用いることが好ましい。The present embodiment includes a step of applying the epoxy resins (c) 9 and 16 after the glass woven cloth 14 is overlaid. Thereby, the resin can be sufficiently present in the surface layer, so that the adhesiveness between the prepreg and the copper foil can be further improved. For application of the epoxy resin (c) to the surface of the glass woven fabric, for example, a comma roll coater, a knife coater, a die coater, a reverse coater, or the like can be used on the upper side of the glass woven fabric. In addition, it is preferable to use a roll coater on the lower side of the glass woven fabric.
【００１６】本発明では、特に限定されないが、前記ガ
ラス織布を重ね合わせた後、加熱乾燥をすることが好ま
しい。これにより、最終的な積層板を得ることができ
る。加熱乾燥は、特に限定されないが、１２０〜２００
℃が好ましく、特に１３０〜１８０℃が好ましい。その
後、この積層板をカッターにより切断または連続的に巻
き取ることも可能である。In the present invention, although not particularly limited, it is preferable to heat and dry after laminating the glass woven fabrics. Thereby, a final laminate can be obtained. The heat drying is not particularly limited, but may be 120 to 200.
C is preferable, and particularly preferably 130 to 180C. Thereafter, the laminate can be cut or continuously wound by a cutter.
【００１７】[0017]
【実施例】以下、本発明について、実施例及び比較例に
より、具体的に説明する。 実施例１ ワニスの調製 エポキシ樹脂（ａ），（ｃ）として、ビスフェノ−ルＡ
型エポキシ樹脂としてエピクロン８５０（エポキシ当量
１９０、大日本インキ（株）製）、臭素化ビスフェノ−
ルＡ型エポキシ樹脂としてＧＸ１５３（エポキシ当量４
００、大日本インキ（株）製）、テトラブロムビスフェ
ノ−ルＡ、ノボラック樹脂としてＰＲ−５１４７０（住
友デュレズ（株）製）、硬化促進剤として２−エチル−
４−メチルイミダゾ−ルを使用し、無機フィラーとして
微粒子シリカ（シオノギ製薬（株）製、カ−プレックス
＃６７）を用い、表１に示した割合で配合した。溶剤と
してアセトンを使用し、固形分７０重量％とした。The present invention will be specifically described below with reference to examples and comparative examples. Example 1 Preparation of Varnish Bisphenol A was used as epoxy resins (a) and (c).
Epicron 850 (epoxy equivalent 190, manufactured by Dainippon Ink Co., Ltd.) as a type epoxy resin, brominated bispheno-
GX153 (epoxy equivalent 4
00, manufactured by Dainippon Ink Co., Ltd.), tetrabromobisphenol A, PR-51470 as a novolak resin (manufactured by Sumitomo Durez Co., Ltd.), and 2-ethyl- as a curing accelerator.
4-Methylimidazole was used, and fine particles of silica (Carplex # 67, manufactured by Shionogi Pharmaceutical Co., Ltd.) were used as the inorganic filler, and were blended at the ratio shown in Table 1. Acetone was used as a solvent to obtain a solid content of 70% by weight.
【００１８】また、中間層エポキシ樹脂（ｂ）として、
ビスフェノ−ルＡ型エポキシ樹脂としてエピクロン８５
０（エポキシ当量１９０、大日本インキ（株）製）、臭
素化ビスフェノ−ルＡ型エポキシ樹脂としてＧＸ１５３
（エポキシ当量４００、大日本インキ化学（株）製）、
クレゾ−ルノボラック型エポキシ樹脂として、エピコ−
ト１８０Ｓ７５（エポキシ当量２１０、油化シェルエポ
キシ（株）製）、ノボラック樹脂としてＰＲ−５１４７
０（住友デュレズ（株）製）、硬化促進剤として２−エ
チル−４−メチルイミダゾ−ルを使用し、無機フィラー
として水酸化アルミニウム（住友化学（株）製、ＣＬ−
３１０）を用い、表１に示した割合にて配合した。溶剤
としてアセトンを使用し、固形分８０重量％とした。Also, as the intermediate layer epoxy resin (b),
Epicron 85 as a bisphenol A type epoxy resin
0 (epoxy equivalent 190, manufactured by Dainippon Ink Co., Ltd.), GX153 as a brominated bisphenol A type epoxy resin
(Epoxy equivalent: 400, manufactured by Dainippon Ink and Chemicals, Inc.),
As a cresol novolak type epoxy resin, Epico-
180S75 (epoxy equivalent 210, manufactured by Yuka Shell Epoxy Co., Ltd.), PR-5147 as a novolak resin
0 (manufactured by Sumitomo Durez Co., Ltd.), 2-ethyl-4-methylimidazole was used as a curing accelerator, and aluminum hydroxide was used as an inorganic filler (manufactured by Sumitomo Chemical Co., Ltd., CL-
310) and blended at the ratios shown in Table 1. Acetone was used as a solvent to obtain a solid content of 80% by weight.
【００１９】積層板の製造 実施例では、前記エポキシ樹脂（ａ）をガラス織布（１
８０ｇ／ｍ2）１００重量部に対して１００重量部塗布
し、その上からガラス不織布（１００ｇ／ｍ2）を重ね
合わせ加熱乾燥した。さらに、その上から中間層樹脂
（ｂ）をガラス不織布１００重量部に対して１０００重
量部塗布し、別のガラス織布（１８０ｇ／ｍ2）を前記
ガラス不織布面側に張り合わせてゴムロールでラミネー
トし加熱乾燥した。次いでこの両面にエポキシ樹脂
（ｃ）をガラス織布１００重量部に対して５０重量部塗
布し、加熱乾燥してプリプレグを得た。このプリプレグ
１枚を厚み１８μｍの銅箔で重ね合わせ、加熱加圧成形
してコンポジット積層板を得た。Manufacture of Laminated Board In the embodiment, the epoxy resin (a) was coated with a glass woven fabric (1).
80 g / m 2 ) 100 parts by weight were applied to 100 parts by weight, and a glass nonwoven fabric (100 g / m 2 ) was overlaid thereon and dried by heating. Furthermore, 1000 parts by weight of the intermediate layer resin (b) was applied to 100 parts by weight of the glass nonwoven fabric, and another glass woven fabric (180 g / m 2 ) was laminated on the glass nonwoven fabric side and laminated with a rubber roll. Heat and dry. Next, 50 parts by weight of the epoxy resin (c) was applied to 100 parts by weight of the glass woven fabric on both sides, and dried by heating to obtain a prepreg. One prepreg was laminated with a copper foil having a thickness of 18 μm, and heated and pressed to obtain a composite laminate.
【００２０】比較例では、前記エポキシ樹脂（ａ）をガ
ラス織布（１８０ｇ／ｍ2）１００重量部に対して１０
０重量部塗布し、その上からガラス不織布（５０ｇ／ｍ
2）を重ね合わせ乾燥した。さらに、その上から中間層
樹脂（ｂ）をガラス不織布１００重量部に対して１００
０重量部塗布した。次いでガラス織布の側からエポキシ
樹脂（ｃ）をガラス織布１００重量部に対して５０重量
部塗布し、加熱乾燥してプリプレグを得た。このプリプ
レグ２枚をガラス不織布側を内側にして重ね合わせ、さ
らに、両表面に銅箔を重ね、加熱加圧成形してコンポジ
ット積層板を得た。[0020] In Comparative Examples, the epoxy resin (a) Glass fabric (180g / m 2) with respect to 100 parts by weight of 10
0 parts by weight, and a glass nonwoven fabric (50 g / m
2 ) was overlaid and dried. Further, from above, 100 parts by weight of the glass non-woven fabric was added to the intermediate layer resin (b) for 100 parts by weight.
0 parts by weight was applied. Next, 50 parts by weight of the epoxy resin (c) was applied to 100 parts by weight of the glass woven fabric from the side of the glass woven fabric, and dried by heating to obtain a prepreg. The two prepregs were laminated with the glass nonwoven fabric side inside, and copper foils were further laminated on both surfaces, and heated and pressed to obtain a composite laminate.
【００２１】[0021]
【表１】 (注１)エピクロン８５０（エポキシ等量１９０、大日本
インキ化学（株）製） (注２)ＧＸ１５３（エポキシ当量４００、大日本インキ
化学（株）製） (注３)エピコ−ト180S75（エポキシ当量２１０、油化シ
ェルエポキシ（製）製） (注４)ＰＲ−５１４７０（住友デュレズ（株）製） (注５)カ−プレックス＃６７（シオノギ製薬（株）製） (注６)ＣＬ−３１０（住友化学（株）製）[Table 1] (Note 1) Epicron 850 (epoxy equivalent 190, manufactured by Dainippon Ink and Chemicals, Inc.) (Note 2) GX153 (epoxy equivalent 400, manufactured by Dainippon Ink and Chemicals, Inc.) (note 3) Epicoat 180S75 (epoxy (Equivalent 210, manufactured by Yuka Shell Epoxy Co., Ltd.) (Note 4) PR-51470 (manufactured by Sumitomo Durez Co., Ltd.) (Note 5) Carplex # 67 (manufactured by Shionogi Pharmaceutical Co., Ltd.) (Note 6) CL- 310 (manufactured by Sumitomo Chemical Co., Ltd.)
【００２２】プリプレグ及び成形されたコンポジット積
層板について、特性を評価し、表２に示す特性を得た。The properties of the prepreg and the formed composite laminate were evaluated, and the properties shown in Table 2 were obtained.
【００２３】[0023]
【表２】 [Table 2]
【００２４】（評価方法） １．銅箔引き剥がし強さ：ＪＩＳ Ｃ ６４８１に準じ
て実施した。 ２．電気絶縁性：常態での体積抵抗率をＪＩＳ Ｃ ６４
８１に準じて測定した。 ３．半田耐熱性：ＪＩＳ Ｃ ６４８１に準じて実施し
た。 ４．プリプレグ製造タクトタイム：厚み１．０ｍｍのコ
ンポジット銅張積層板１ｍ2分のプリプレグを製造する
タクトタイムを測定した。(Evaluation method) Copper foil peel strength: Conducted according to JIS C6481. 2. Electrical insulation: The volume resistivity under normal conditions is determined according to JIS C64.
81 was measured. 3. Solder heat resistance: Implemented according to JIS C6481. 4. Tact time for producing prepreg: A tact time for producing a prepreg for 1 m 2 of a composite copper-clad laminate having a thickness of 1.0 mm was measured.
【００２５】[0025]
【発明の効果】本発明の積層板の製造方法は、一台の塗
布乾燥装置により、ガラス織布プリプレグとガラス不織
布プリプレグとが重ね合わされ一体化した複合プリプレ
グを連続的に製造することが可能であり、プリプレグの
組み合わせ工程が不要である。従って、従来の方法に比
較してコンポジット積層板を効率良く製造することがで
きる。According to the method for producing a laminate of the present invention, a composite prepreg in which a glass woven prepreg and a glass nonwoven prepreg are overlapped and integrated by one coating and drying apparatus can be continuously produced. There is no need for a prepreg assembling step. Therefore, the composite laminate can be manufactured more efficiently than the conventional method.
【図１】 本発明において、プリプレグを製造するまで
の工程（一例）の概略図である。FIG. 1 is a schematic view of a process (an example) up to manufacturing a prepreg in the present invention.
１ ガラス織布 ２ エポキシ樹脂（ａ） ３ コーター ５ ガラス不織布 ６ 乾燥装置 ７ 中間層エポキシ樹脂（ｂ） ８ コーター ９ 乾燥装置 １０ エポキシ樹脂（ｃ） １１ ロールコーター １２ 乾燥装置 １３ カッター １４ エポキシ樹脂含浸プリプレグ １５ ガラス織布 １６ コーター １７ エポキシ樹脂（ｃ） DESCRIPTION OF SYMBOLS 1 Glass woven fabric 2 Epoxy resin (a) 3 Coater 5 Glass nonwoven fabric 6 Drying device 7 Intermediate layer epoxy resin (b) 8 Coater 9 Drying device 10 Epoxy resin (c) 11 Roll coater 12 Drying device 13 Cutter 14 Epoxy resin impregnated prepreg 15 Glass woven cloth 16 Coater 17 Epoxy resin (c)
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4F072 AA04 AA07 AB09 AB29 AD23 AE00 AG03 AG17 AH25 AJ04 4F100 AG00A AG00B AK53A AK53B BA02 BA05 BA07 DH01A DH01B EH46 EJ82 4J002 CD051 CD061 DE076 DE146 DE236 DJ016 DJ046 FD016 FD147 GF00 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 4F072 AA04 AA07 AB09 AB29 AD23 AE00 AG03 AG17 AH25 AJ04 4F100 AG00A AG00B AK53A AK53B BA02 BA05 BA07 DH01A DH01B EH46 EJ82 4J002 CD051 CD061 DE076 146 DE236 DJ016 DJ016
Claims (3)
（ａ）を塗布する工程、前記エポキシ樹脂（ａ）を塗布
した面にガラス不織布を重ね合わせ、加熱乾燥する工
程、前記ガラス不織布に中間層エポキシ樹脂（ｂ）を塗
布する工程、前記ガラス不織布の上面に、他のガラス織
布を重ね合わせて加熱乾燥してプリプレグを作製する工
程を有することを特徴とするコンポジット積層板製造方
法。1. A step of applying an epoxy resin (a) from one side of a glass woven fabric, a step of superposing a glass nonwoven fabric on the surface to which the epoxy resin (a) is applied, and a step of drying by heating; A method for producing a composite laminate, comprising: a step of applying an epoxy resin (b); and a step of laminating another glass woven fabric on the upper surface of the glass nonwoven fabric and drying by heating to prepare a prepreg.
キシ樹脂（ｃ）を含浸させる工程を有する請求項１に記
載のコンポジット積層板の製造方法。2. The method for producing a composite laminate according to claim 1, further comprising a step of impregnating an epoxy resin (c) after the step of preparing the prepreg.
樹脂（硬化剤を含む）１００重量部に対して充填材８０
〜１５０重量部を含む請求項１又は２に記載のコンポジ
ット積層板の製造方法。3. The intermediate layer epoxy resin (b) is filled with a filler 80 per 100 parts by weight of an epoxy resin (including a curing agent).
The method for producing a composite laminate according to claim 1, wherein the composite laminate contains 積 層 150 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001184452A JP4238492B2 (en) | 2001-06-19 | 2001-06-19 | Laminate production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001184452A JP4238492B2 (en) | 2001-06-19 | 2001-06-19 | Laminate production method |
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| Publication Number | Publication Date |
|---|---|
| JP2002370301A true JP2002370301A (en) | 2002-12-24 |
| JP4238492B2 JP4238492B2 (en) | 2009-03-18 |
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ID=19024212
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2014088099A1 (en) * | 2012-12-06 | 2017-01-05 | 三菱瓦斯化学株式会社 | Method for producing metal foil-clad laminate |
-
2001
- 2001-06-19 JP JP2001184452A patent/JP4238492B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2014088099A1 (en) * | 2012-12-06 | 2017-01-05 | 三菱瓦斯化学株式会社 | Method for producing metal foil-clad laminate |
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|---|---|
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