JPS60240437A - Preparation of laminated board for electric use - Google Patents

Preparation of laminated board for electric use

Info

Publication number
JPS60240437A
JPS60240437A JP59098406A JP9840684A JPS60240437A JP S60240437 A JPS60240437 A JP S60240437A JP 59098406 A JP59098406 A JP 59098406A JP 9840684 A JP9840684 A JP 9840684A JP S60240437 A JPS60240437 A JP S60240437A
Authority
JP
Japan
Prior art keywords
resin
fluororesin
impregnated
resistance
tetrafluoroethylene
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
Application number
JP59098406A
Other languages
Japanese (ja)
Inventor
Shoji Fujikawa
藤川　彰司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP59098406A priority Critical patent/JPS60240437A/en
Publication of JPS60240437A publication Critical patent/JPS60240437A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0313—Organic insulating material
    • H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
    • H05K1/0366—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/003—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0007—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0015—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption
    • B29K2995/0069—Permeability to liquids; Adsorption non-permeable
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01—Dielectrics
    • H05K2201/0137—Materials
    • H05K2201/015—Fluoropolymer, e.g. polytetrafluoroethylene [PTFE]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/01—Dielectrics
    • H05K2201/0183—Dielectric layers
    • H05K2201/0195—Dielectric or adhesive layers comprising a plurality of layers, e.g. in a multilayer structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Reinforced Plastic Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To obtain a laminated board more excellent in capacities such as a high frequency characteristic, humidity resistance, insulating resistance, heat resistance and chemical resistance, in obtaining a resin impregnated laminated board for an electric use, by performing the impregnation of a resin in plural times and impregnating a specific resin at first. CONSTITUTION:In obtaining a laminated board for an electric use by laminating a predetermined number of resin impregnated substrates each of which is obtained by impregnating the substrate with a fluorocarbon resin and melting said resin under heating, the impregnation of the resin is performed in plural times and, at first, tetrafluoroethylene/hexafluoropropylene copolymer or a fluorocarbon resin containing 0.5wt% or more of said copolymer is impregnated in a predetermined resin amount. On and after a second time, a 100% tetrafluoroethylene resin is impregnated in a predetermined resin amount. Thus obtained laminated board for an electric use is good in the close bonding strength of the fluorocarbon resin and the substrates and extremely excellent in capacities such as high frequency characteristic, humidity resistance, insulating resistance, heat resistance and chemical resistance.

Description

【発明の詳細な説明】 〔技術分野〕 この発明は、電子機器等に用いられる電気用積層板の製
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for manufacturing electrical laminates used in electronic devices and the like.

〔背景技術〕[Background technology]

電気用積層板の製法として、つぎのような製法がある。 There are the following manufacturing methods for manufacturing electrical laminates.

すなわち、ガラス布等の基材を四フッ化エチレン樹脂（
ＰＴＦＥ）等のフッ素樹脂（フッ化樹脂）ディスパージ
ョンに浸けたり、基材にフッ素樹脂ディスパージョンを
塗布したりして基材にフッ素樹脂を含浸させる。つぎに
、融点以上（四フッ化エチレン樹脂の場合は３２７℃以
上）に加熱して樹脂を溶融（加熱焼成）させ、樹脂含浸
基材をつくる。この樹脂含浸基材所定枚を、必要に応じ
その片面または両面に銅箔等の金属箔を配置するように
して加熱成形して電気用積層板を得る。フッ素樹脂を用
いると、電気用積層板の性能が優れたものとなる。In other words, a base material such as glass cloth is coated with tetrafluoroethylene resin (
The base material is impregnated with a fluororesin by dipping it in a fluororesin dispersion such as PTFE or by applying a fluororesin dispersion to the base material. Next, the resin is heated to a temperature higher than its melting point (327° C. or higher in the case of tetrafluoroethylene resin) to melt (heat and bake) the resin, thereby producing a resin-impregnated base material. A predetermined sheet of this resin-impregnated base material is heat-formed with metal foil such as copper foil placed on one or both sides of the base material, if necessary, to obtain an electrical laminate. Use of fluororesin provides electrical laminates with excellent performance.

〔発明の目的〕[Purpose of the invention]

この発明は、高周波特性、耐湿性、絶縁抵抗。 This invention has high frequency characteristics, moisture resistance, and insulation resistance.

耐熱性、耐薬品性等の性能がいっそう優れたものを得る
ことができる電気用積層板の製法を提供することを目的
としている。The object of the present invention is to provide a method for manufacturing an electrical laminate that can provide even more excellent properties such as heat resistance and chemical resistance.

〔発明の開示〕[Disclosure of the invention]

発明者は、前記従来の電気用積層板の製法を改良するこ
とにより、前記目的を達成しようとして研究を重ねた。The inventor has conducted repeated research in an attempt to achieve the above object by improving the conventional manufacturing method of electrical laminates.

その結果、フッ素樹脂の含浸を複数回に分けて行い、最
初に四フッ化エチレン−六フッ化プロピレン共重合体か
らなるフッ素樹脂、または、この共重合体を０．５重量
％以上含むフッ素樹脂を含浸させるようにすればよいと
いうことを見い出し、ここにこの発明を完成した。As a result, the impregnation with the fluororesin is carried out in multiple steps, and first the fluororesin is made of a tetrafluoroethylene-hexafluoropropylene copolymer, or the fluororesin containing 0.5% by weight or more of this copolymer. They discovered that it is sufficient to impregnate the material with water, and have now completed this invention.

したがって、この発明は、基材にフッ素樹脂を含浸させ
たのち、加熱溶融させた樹脂含浸基材を所定枚積層して
電気用積層板を得るにあたり、フッ素樹脂の含浸を複数
回に分けて行い、最初に四フッ化エチレンー六フッ化プ
ロピレン共重合体からなるフッ素樹脂、または、この共
重合体を０．５重量％以上含むフッ素樹脂を含浸させる
ことを特徴とする電気用積層板の製法をその要旨として
いる。　以下に、この発明の詳細な説明する。Therefore, in this invention, when obtaining an electrical laminate by impregnating a base material with a fluororesin and then laminating a predetermined number of heated and melted resin-impregnated base materials, the impregnation with the fluororesin is carried out in multiple steps. , a method for manufacturing an electrical laminate, characterized in that it is first impregnated with a fluororesin consisting of a tetrafluoroethylene-hexafluoropropylene copolymer, or a fluororesin containing 0.5% by weight or more of this copolymer. This is the summary. The present invention will be explained in detail below.

ここで、基材としては、ガラス布等の布、ガラス不織布
等の不織布９紙、その他電気用積層板製造用として一般
に用いられているものが用いられる。Here, as the base material, cloth such as glass cloth, nonwoven paper such as glass nonwoven fabric, and other materials commonly used for manufacturing electrical laminates are used.

フッ素樹脂の含浸は複数回に分けて行うが、最初は四フ
ッ化エチレンー六フッ化プロピレン共重合体からなるも
の、または、この共重合体を０．５重量％以上含むフッ
素樹脂を含浸させる。フッ素樹脂として、前記共重合体
のみからなるものを用いない場合は、この共重合体と四
フッ化エチレン重合体（樹脂）等とを混合するが、四フ
ッ化エチレン重合体を混合する場合は、共重合体の割合
は固形分基準で四フッ化エチレン重合体の１％（ｗｔＳ
ｏｌｉｄ率でＦＥＰ／ＰＴＦＥ＝１／１００）以上とす
るのが好ましい。The impregnation with the fluororesin is carried out in multiple steps; first, a fluororesin made of a tetrafluoroethylene-hexafluoropropylene copolymer or a fluororesin containing 0.5% by weight or more of this copolymer is impregnated. If a fluororesin consisting only of the above copolymer is not used, this copolymer is mixed with a tetrafluoroethylene polymer (resin), etc.; however, when a tetrafluoroethylene polymer is mixed, , the proportion of copolymer is 1% (wtS) of tetrafluoroethylene polymer based on solid content.
It is preferable that the solid ratio is FEP/PTFE=1/100) or more.

２回目以降に含浸させる樹脂は、フッ素樹脂であれば特
に限定されないが、たとえば、四フウ化エチレン樹Ｊ］
Ｉ　１００％のフッ素樹脂、四フッ化エチレンー六フッ
化プロピレン共重合樹脂１００％のフッ素樹脂、あるい
は、四フッ化エチレン樹脂と四フッ化エチレンー六フッ
化プロピレン共重合樹脂とのブレンド品（ブレンド率は
０〜１００％）があげられる。The resin to be impregnated from the second time onwards is not particularly limited as long as it is a fluororesin, but for example, tetrafluoroethylene resin J]
I 100% fluororesin, tetrafluoroethylene-hexafluoropropylene copolymer resin, 100% fluororesin, or a blend product of tetrafluoroethylene resin and tetrafluoroethylene-hexafluoropropylene copolymer resin (blending ratio (0 to 100%).

この発明にかかる電気用積層板の製法は、つぎのように
して実施される。まず、四フッ化エチレンー六フッ化プ
ロピレン共重合体からなるフッ素樹脂、または、この共
重合体を０．５重量％以上含むフッ素樹脂のディスパー
ジョンに基材を浸けたり、このようなフッ素樹脂を基材
に塗布したりして、所定の樹脂量となるようフッ素樹脂
を含浸させる。つぎに、すでにあげたような四フッ化エ
チレン樹脂１００％のフッ素樹脂等を所定の樹脂量とな
るよう含浸させる。フッ素樹脂の含浸回数の合計は、２
回以上であれば特に限定されない。このあと、フッ素樹
脂を加熱溶融させて樹脂含浸基材をつくる。このように
して得られた樹脂含浸基材を所定枚重ね合わせ、必要に
応じてその少なくとも片面に銅箔等の金属箔を重ね合わ
せて積層体とし、この積層体を加熱成形（一体化）して
電気用積層板を得る。The method for manufacturing an electrical laminate according to the present invention is carried out as follows. First, a base material is immersed in a fluororesin made of a tetrafluoroethylene-hexafluoropropylene copolymer, or a fluororesin dispersion containing 0.5% by weight or more of this copolymer, or such a fluororesin is The fluororesin is impregnated with a predetermined amount of resin by coating the base material. Next, a fluororesin made of 100% tetrafluoroethylene resin as mentioned above is impregnated to a predetermined amount. The total number of times the fluororesin is impregnated is 2.
There is no particular limitation as long as it is more than once. Thereafter, the fluororesin is heated and melted to create a resin-impregnated base material. A predetermined number of resin-impregnated base materials obtained in this way are stacked, and if necessary, a metal foil such as copper foil is stacked on at least one side to form a laminate, and this laminate is heat-formed (integrated). to obtain an electrical laminate.

このようにして得られた電気用積層板は、フッ素樹脂の
含浸を複数回に分けで行い、最初に四フッ化エチレンー
六フフ化プロピレン共重合体からなるもの、または、こ
の共重合体を０．５重量％以上含むフッ素樹脂を含浸さ
せるようにしているので、１回目に含浸させたフッ素樹
脂と基材との密着力が大幅に高く、そのうえ、２回目以
降に含浸させるフッ素樹脂と基材の密着力も良好となっ
ている。そのため、得られる電気用積層板の高周波特性
、耐湿性、絶縁抵抗、耐熱性、耐薬品性等の性能が非常
に優れたものとなっている。The electrical laminate thus obtained is impregnated with a fluororesin in multiple steps, and first is made of a tetrafluoroethylene-hexafluoropropylene copolymer, or is made of a copolymer of ethylene tetrafluoride and propylene hexafluoride. Since the fluororesin containing .5% by weight or more is impregnated, the adhesion between the fluororesin impregnated in the first time and the base material is significantly high. The adhesion is also good. Therefore, the obtained electrical laminate has extremely excellent performances such as high frequency characteristics, moisture resistance, insulation resistance, heat resistance, and chemical resistance.

なお、樹脂含浸基材の間にフッ素樹脂フィルムを介在さ
せ、必要に応じ、両外面の樹脂含浸基材の外側にもフッ
素樹脂フィルムを重ね合わせて成形するようにすると、
いっそう性能の優れた電気用積層板を得ることができる
。In addition, if a fluororesin film is interposed between the resin-impregnated base materials, and if necessary, the fluororesin films are superimposed on the outside of the resin-impregnated base materials on both outer surfaces as well.
An electrical laminate with even better performance can be obtained.

つぎに、実施例および比較例について説明する（実施例
１） まず、厚み０．０５ｍｍのガラス布に樹脂量が１５％と
なるよう四フフ化エチレンー六フフ化プロピレン共重合
体ディスパージョン（ダイキン工業株式会社のネオフロ
ン）を含浸させ、つぎに、全体の樹脂量が４５％となる
よう四フフ化エチレン樹脂ディスパージョン（ダイキン
工業株式会社のポリフロン）を含浸させた。このあと、
樹脂を３５０℃で加熱溶融させて樹脂含浸基材をつくっ
た。Next, Examples and Comparative Examples will be explained (Example 1) First, a dispersion of ethylene tetrafluoride-propylene hexafluoride copolymer (Daikin Industries, Ltd. Neoflon (manufactured by Daikin Industries, Ltd.) was impregnated, and then a tetrafluoroethylene resin dispersion (Polyflon (manufactured by Daikin Industries, Ltd.)) was impregnated so that the total resin amount was 45%. after this,
A resin-impregnated base material was prepared by heating and melting the resin at 350°C.

この樹脂含浸基材を１２枚重ね合わせ、さらに、その上
下面に厚み０．０１８ｍｍの接着剤付銅箔を重ね合わせ
て積層体をつくフた。この積層体を、３０　ｋｇ／　ｃ
ｔ、４００℃、４５分間の条件で加熱加圧成形して電気
用積層板を得た。Twelve sheets of this resin-impregnated base material were stacked together, and adhesive-coated copper foil with a thickness of 0.018 mm was then stacked on the top and bottom surfaces to form a laminate. This laminate is weighed at 30 kg/c
An electrical laminate was obtained by heat-pressing molding at 400° C. for 45 minutes.

（実施例２） １回目に含浸させるフッ素樹脂として、四フフ化エチレ
ン１００部に対し、四フッ化エチレンー六フフ化プロピ
レン共重合体１０部を加えた混合樹脂を使用するように
したほかは、実施例１と同様にして樹脂含浸基材をつく
った。(Example 2) As the fluororesin for the first impregnation, a mixed resin in which 10 parts of tetrafluoroethylene-hexafluoropropylene copolymer was added to 100 parts of tetrafluoroethylene was used. A resin-impregnated base material was produced in the same manner as in Example 1.

（実施例３） １回目および２回目に含浸させる樹脂として、四フフ化
エチレン樹脂１００部に対し、四フッ化エチレンー六フ
ッ化プロピレン共重合体１０部を加えた混合樹脂を用い
るようにしたほかは、実施例１と同様にして樹脂含浸基
材をつくった。(Example 3) As the resin for the first and second impregnation, a mixed resin in which 10 parts of tetrafluoroethylene-hexafluoropropylene copolymer was added to 100 parts of tetrafluoroethylene resin was used. A resin-impregnated base material was prepared in the same manner as in Example 1.

（比較例） 樹脂量が４５％となるよう、ガラス布に四フフ化エチレ
ン樹脂を含浸させるようにし、フッ素樹脂の含浸を１回
で行うようにしたほかは、実施例１と同様にして樹脂含
浸基材をつくった。(Comparative example) Resin was prepared in the same manner as in Example 1, except that the glass cloth was impregnated with tetrafluoroethylene resin so that the resin amount was 45%, and the impregnation with fluororesin was carried out only once. An impregnated base material was made.

実施例１〜３および比較例の電気用積層板につき、煮沸
吸水率（Ｉ）−２／１００，１００℃水中２時間処理）
、絶縁抵抗（１）、−２／１００）　、打抜加工性およ
びドリル加工性を調べた。結果を第１表に示す。For the electrical laminates of Examples 1 to 3 and Comparative Example, boiling water absorption rate (I)-2/100, 2 hours treatment in 100°C water)
, insulation resistance (1), -2/100), punching workability and drilling workability were investigated. The results are shown in Table 1.

（以　下　余　白） 第１表より、実施例１〜３で得られた電気用積層板は、
比較例で得られたものに比べ、煮沸吸水率が低（、絶縁
抵抗、打抜加工性およびドリル加工性が優れていること
がわかる。(Margin below) From Table 1, the electrical laminates obtained in Examples 1 to 3 are as follows:
It can be seen that the boiling water absorption rate is lower than that obtained in the comparative example, and the insulation resistance, punching workability, and drilling workability are excellent.

〔発明の効果〕〔Effect of the invention〕

この発明にかかる電気用積層板の製法は、フッ素樹脂の
含浸を複数回に分けて行い、最初に四フッ化エチレンー
六フッ化プロピレン共重合体からなるフッ素樹脂、また
は、この共重合体を０．５重量％以上含むフッ素樹脂を
含浸させるようにしているので、高周波特性、耐湿性、
絶縁抵抗、耐熱性、耐薬品性等の性能が非常に優れた電
気用積層板を得ることができる。In the method for producing an electrical laminate according to the present invention, impregnation with a fluororesin is carried out in multiple steps, and first a fluororesin consisting of a tetrafluoroethylene-hexafluoropropylene copolymer or this copolymer is Since it is impregnated with fluororesin containing .5% by weight or more, it has excellent high frequency characteristics, moisture resistance,
It is possible to obtain an electrical laminate with very excellent performance such as insulation resistance, heat resistance, and chemical resistance.

代理人　弁理士　松　本　武　彦Agent: Patent Attorney Takehiko Matsumoto

Claims (1)

【特許請求の範囲】[Claims] （１１基材にフッ素樹脂を含浸させたのち、加熱溶融さ
せた樹脂含浸基材を所定枚積層して電気用積層板を得る
にあたり、フッ素樹脂の含浸を複数回に分けて行い、最
初に四フッ化エチレンー六フッ化プロピレン共重合体か
らなるフッ素樹脂、または、この共重合体を０．５重量
％以上含むフッ素樹脂を含浸させることを特徴とする電
気用積層板の製法。(11 After impregnating the base material with fluororesin, a predetermined number of heated and melted resin-impregnated base materials are laminated to obtain an electrical laminate. Impregnation with fluororesin is carried out in multiple steps, first 1. A method for producing an electrical laminate, which comprises impregnating a fluororesin made of a fluorinated ethylene-hexafluorinated propylene copolymer, or a fluororesin containing 0.5% by weight or more of this copolymer.
JP59098406A 1984-05-15 1984-05-15 Preparation of laminated board for electric use Pending JPS60240437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59098406A JPS60240437A (en) 1984-05-15 1984-05-15 Preparation of laminated board for electric use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59098406A JPS60240437A (en) 1984-05-15 1984-05-15 Preparation of laminated board for electric use

Publications (1)

Publication Number Publication Date
JPS60240437A true JPS60240437A (en) 1985-11-29

Family

ID=14218953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59098406A Pending JPS60240437A (en) 1984-05-15 1984-05-15 Preparation of laminated board for electric use

Country Status (1)

Country Link
JP (1) JPS60240437A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012184422A (en) * 2011-03-03 2012-09-27 Daikin Industries Ltd Method for manufacturing impregnated body, and method for manufacturing laminate for multilayer printed wiring board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012184422A (en) * 2011-03-03 2012-09-27 Daikin Industries Ltd Method for manufacturing impregnated body, and method for manufacturing laminate for multilayer printed wiring board

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