JPH0439006A - Manufacture of prepreg for laminated sheet - Google Patents
Manufacture of prepreg for laminated sheetInfo
- Publication number
- JPH0439006A JPH0439006A JP14528890A JP14528890A JPH0439006A JP H0439006 A JPH0439006 A JP H0439006A JP 14528890 A JP14528890 A JP 14528890A JP 14528890 A JP14528890 A JP 14528890A JP H0439006 A JPH0439006 A JP H0439006A
- Authority
- JP
- Japan
- Prior art keywords
- infiltration
- impregnation
- primary
- prepreg
- resin varnish
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 239000002966 varnish Substances 0.000 claims abstract description 16
- 238000007654 immersion Methods 0.000 claims abstract description 6
- 238000005470 impregnation Methods 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract 9
- 238000001764 infiltration Methods 0.000 abstract 9
- 230000002349 favourable effect Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 abstract 1
- 238000001465 metallisation Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Reinforced Plastic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、吸湿処理後のはんだやりフロー等の熱処理工
程において層間剥離やミーズリング等の発生が少なく、
かつ電気特性にも優れた積層板を得ることかできる含浸
性の良好なプリプレグの製造方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention reduces the occurrence of delamination, measling, etc. in heat treatment processes such as soldering flow after moisture absorption treatment, and
The present invention also relates to a method for producing a prepreg with good impregnation properties, which allows a laminate with excellent electrical properties to be obtained.
従来、含浸の良好な積層板用プリプレグを製造する方法
として、真空含浸複数回含浸があり、そのうち2段含浸
の場合を例に上げると、■ 濃度の低い樹脂ワニスを一
次含浸に使う方法、
■ 低粘度の樹脂処方のフェスを一次含浸に使う方法、
■ 樹脂ワニスと置換しやすい有機溶剤を予め含浸する
方法、
■ 含浸の後に基材に圧力をかけ脱泡する方法、■ 一
次含浸として片側含浸を使う方法、■ 含浸時間を長く
する方法、
等が考えられ、一部実施されている。いずれの方法も一
応の効果があるものの充分でないものであった。Conventionally, methods for producing prepreg for laminates with good impregnation include vacuum impregnation and multiple impregnations.To give an example of two-stage impregnation, there are two methods: ■ A method of using a low-concentration resin varnish for the primary impregnation; A method of using a face with a low viscosity resin formulation for primary impregnation, ■ A method of pre-impregnation with an organic solvent that can easily replace the resin varnish, ■ A method of degassing by applying pressure to the base material after impregnation, ■ One-sided impregnation as primary impregnation. ■Methods such as increasing the impregnation time, etc. have been considered and some have been implemented. Although each method had some effect, it was not sufficient.
本発明の目的とするところは、塗布工程の生産性を低化
させることなく、積層板の吸湿後の電気的特性や耐熱性
が優れた、積層板用のブリブレグを提供するにある。An object of the present invention is to provide a brev leg for a laminate that has excellent electrical properties and heat resistance after moisture absorption of the laminate without reducing the productivity of the coating process.
本発明は、含浸性の良好な積層板用プリプレグの製造方
法を提供するものであって、その要旨は多段含浸法によ
るプリプレグの製造方法において、−成金浸として、樹
脂ワニスへの含浸又は浸漬の深さをシート状基材の含浸
の厚さ未満とし、−成金浸後二次含浸までの時間を5秒
以上とすることを特徴とする積層板用プリプレグの製造
方法である。本発明において用いられる一次含浸の方法
は通常片側含浸が採用され、このようなものとしてたと
えば、■キスロールによる方法、■ロールコーター法、
■片側スプレー法、■極浅バット法があり、これらを単
独又は組合せにヰよりワニスを基材に含浸するが、基材
の厚み方向の途中まで含浸又は浸漬する事により、モノ
フィラメント内の未含浸部分を二次含浸時の脱泡経路と
して確保できる。The present invention provides a method for manufacturing a prepreg for a laminate with good impregnability, and the gist thereof is: - In a method for manufacturing a prepreg by a multi-stage impregnation method, impregnation or dipping into a resin varnish is performed as metal deposition. A method for manufacturing a prepreg for a laminate, characterized in that the depth is less than the impregnation thickness of a sheet-like base material, and the time from metal deposition to secondary impregnation is 5 seconds or more. The primary impregnation method used in the present invention usually employs one-sided impregnation, and examples include (1) a kiss roll method, (2) a roll coater method,
■ One-side spray method and ■ Extremely shallow vat method. These methods are used alone or in combination to impregnate the base material with varnish. This section can be secured as a degassing path during secondary impregnation.
樹脂ワニスを基材の厚さ以上の深さに浸漬して一次含浸
した場合、樹脂ワニスが基村内の空気の脱泡を抑えるの
で、二次含浸時の脱泡を困迂にする。When primary impregnation is performed by dipping resin varnish to a depth equal to or greater than the thickness of the base material, the resin varnish suppresses defoaming of air within the base material, making defoaming during secondary impregnation difficult.
二次含浸は通常の方法、すなわち含浸浴に浸漬する方法
でよい が、−成金浸が通常片側含浸であるので、片面
含浸された側を下向きにして基材を浸漬するのが好まし
い。The secondary impregnation may be carried out by a conventional method, that is, immersion in an impregnating bath. However, since gold-forming immersion is usually one-sided impregnation, it is preferable to immerse the substrate with one side impregnated facing downward.
二次含浸は一次含浸終了後5秒以上、好ましくは10秒
以上経過してから行う。この間に樹脂ワニスが基材の細
部まで浸透し、 樹脂ワニスが浸透しない部分は基材の
一方の側の片寄って存在し、 二次含浸の際、残存する
空気の脱泡が容易となる。The secondary impregnation is performed at least 5 seconds, preferably at least 10 seconds after the completion of the primary impregnation. During this time, the resin varnish penetrates into the details of the base material, and the areas where the resin varnish does not penetrate exist on one side of the base material, making it easier to defoam the remaining air during the secondary impregnation.
なお、−成金浸に使用する樹脂ワニスは、二次含浸と同
一のものでもよいし、異なっていてもよい。また、樹脂
含有率は両者同一または一次含浸の方を小さくするのが
好ましい。The resin varnish used for -metal impregnation may be the same as that for the secondary impregnation, or may be different. Further, it is preferable that the resin content is the same for both or lower for the primary impregnation.
以下、実施例及び比較例により本発明を説明する。 The present invention will be explained below with reference to Examples and Comparative Examples.
シート状基材として厚さ200μmのガラスクロス(坪
量210g/rf)を使用し、樹脂含有率50%のエポ
キシ樹脂ワニスを塗布、含浸(−成金浸)後、二次含浸
し、乾燥した。A glass cloth (basis weight 210 g/rf) with a thickness of 200 μm was used as a sheet-like base material, and an epoxy resin varnish with a resin content of 50% was applied, impregnated (-metal immersion), and then subjected to secondary impregnation and dried.
一次含浸はキスロール(比較例3を除く)を使用し、二
次含浸は通常の含浸浴への浸漬法を実施した。The primary impregnation was carried out using a kiss roll (except for Comparative Example 3), and the secondary impregnation was carried out by immersion in a normal impregnating bath.
第1表に、−成金浸時におけるガラスクロス基材の厚み
に対する樹脂ワニス含浸の深さの割合、−成金没後二次
含浸までの時間及び得られたプリプレグの外IN(目視
)及びこのプリプレグを積層成形した積層板の外観の良
否を示す。Table 1 shows: - The ratio of the depth of resin varnish impregnation to the thickness of the glass cloth base material during the metal deposition, - The time from the metal deposition to the secondary impregnation, the outside IN (visual observation) of the obtained prepreg, and this prepreg. Indicates the quality of the appearance of the laminated board formed by lamination.
積層板は、各プリプレグ8枚とその両面に銅箔を重ね合
わせ、170℃、20kg/cdで90分間積層成形し
た。外観の良否の判定は銅箔をエツチングにより除去し
たのち、表面状態の目視により行った。The laminate was made by laminating 8 sheets of each prepreg and copper foil on both sides, and laminated and molded at 170° C. and 20 kg/cd for 90 minutes. The quality of the appearance was determined by visually inspecting the surface condition after removing the copper foil by etching.
本発明方法に従うと、従来の設備に大がかりな設備を追
加することなく、塗布含浸性が良好で、気泡が少なく、
成形性の容易な積層板用のプリプレグを得ることができ
る。According to the method of the present invention, there is no need to add large-scale equipment to conventional equipment, and the coating and impregnating properties are good, there are few bubbles, and
A prepreg for laminates that is easily moldable can be obtained.
このプリプレグを使用して積層成形された積層板は外観
が良好で特性の点でもすぐれている。A laminate plate formed by lamination using this prepreg has a good appearance and excellent properties.
Claims (1)
、一次含浸として、樹脂ワニスへの含浸又は浸漬の深さ
をシート状基材の含浸の厚さ未満とし、一次含浸後二次
含浸までの時間を5秒以上とすることを特徴とする積層
板用プリプレグの製造方法。(1) In the prepreg manufacturing method using the multi-stage impregnation method, as the primary impregnation, the depth of the impregnation or immersion into the resin varnish is less than the thickness of the impregnation of the sheet-like base material, and the time from the primary impregnation to the secondary impregnation is A method for producing a prepreg for a laminate, characterized in that the manufacturing time is 5 seconds or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14528890A JPH0439006A (en) | 1990-06-05 | 1990-06-05 | Manufacture of prepreg for laminated sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14528890A JPH0439006A (en) | 1990-06-05 | 1990-06-05 | Manufacture of prepreg for laminated sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0439006A true JPH0439006A (en) | 1992-02-10 |
Family
ID=15381678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14528890A Pending JPH0439006A (en) | 1990-06-05 | 1990-06-05 | Manufacture of prepreg for laminated sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0439006A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140174641A1 (en) * | 2012-12-21 | 2014-06-26 | Cytec Industries Inc. | Curable prepregs with surface openings |
-
1990
- 1990-06-05 JP JP14528890A patent/JPH0439006A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140174641A1 (en) * | 2012-12-21 | 2014-06-26 | Cytec Industries Inc. | Curable prepregs with surface openings |
US9802358B2 (en) * | 2012-12-21 | 2017-10-31 | Cytec Industries Inc. | Curable prepregs with surface openings |
US10329696B2 (en) * | 2012-12-21 | 2019-06-25 | Cytec Industries Inc. | Curable prepregs with surface openings |
US10821680B2 (en) * | 2012-12-21 | 2020-11-03 | Cytec Industries Inc. | Curable prepregs with surface openings |
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