JPS60223869A - Electrically conductive paint - Google Patents
Electrically conductive paintInfo
- Publication number
- JPS60223869A JPS60223869A JP8044184A JP8044184A JPS60223869A JP S60223869 A JPS60223869 A JP S60223869A JP 8044184 A JP8044184 A JP 8044184A JP 8044184 A JP8044184 A JP 8044184A JP S60223869 A JPS60223869 A JP S60223869A
- Authority
- JP
- Japan
- Prior art keywords
- electrically conductive
- tolylene diisocyanate
- paint
- coating film
- binder component
- 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
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
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
- H05K1/092—Dispersed materials, e.g. conductive pastes or inks
- H05K1/095—Dispersed materials, e.g. conductive pastes or inks for polymer thick films, i.e. having a permanent organic polymeric binder
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、キーボードスイッチなどの印刷配線板、抵抗
体、電極に用いることができる導電性塗料に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a conductive paint that can be used for printed wiring boards such as keyboard switches, resistors, and electrodes.
従来例の構成とその問題点
従来より、フレキシブル印刷配線板に：は、スクリーン
印刷方式などを用いて配線部を形成するが、ここには導
電性の良好なる塗料が用いられている。Conventional Structures and Problems Conventionally, in flexible printed wiring boards, wiring portions have been formed using a screen printing method, and paints with good conductivity have been used here.
性が望まれ、さらにフレキシブルな硬化膜を得る必要が
あることや、導電材として銀粉、金粉などの高価なもの
を用いるため、長いポットライフが要求される。したが
って、主にポリウレタン系樹脂が用いられているが、そ
の中でも室温では安定で、加熱することにより反応が進
むインシアネート再生体と活性水素を有する樹脂を一液
混合した熱硬化型ポリウレタン系樹脂や、加熱によって
溶剤を蒸発させることにより塗膜を作る熱可塑性ポリウ
レタン系樹脂などの樹脂がよく用いられている０
ところで、近年、上述したような印刷配線板や抵抗体な
どの電子部品は、製造合理化、生産性向上と、さらに特
性向上のために、これらの塗料焼付けの低温化、短時間
化がめられるようになってきた。In addition, a long pot life is required because it is necessary to obtain a flexible cured film, and because expensive materials such as silver powder or gold powder are used as the conductive material. Therefore, polyurethane resins are mainly used, including thermosetting polyurethane resins, which are a one-part mixture of incyanate regenerate and active hydrogen-containing resin, which are stable at room temperature and undergo a reaction when heated. In recent years, resins such as thermoplastic polyurethane resins, which form coating films by evaporating solvents by heating, are often used.In recent years, however, electronic components such as printed wiring boards and resistors as mentioned above are becoming more and more streamlined. In order to improve productivity and properties, it has become necessary to lower the temperature and shorten the baking time of these paints.
・しかしながら、現行では、フェノール、ε−カグロラ
クタム、ポリアミド樹脂、オキシム類またけβ−ケトカ
ルボニル化合物類でブロックされたイソシアネート耳／
：１：仕を用いスジ、価什ｆ恵但長時間（１６０〜１８
０℃、２０分以上）が必要であり、溶剤揮発型樹脂も含
めて、低温、短時間（１２０〜１６ｏ℃、５〜１Ｑ分）
で硬化させるト、基板フィルム（ＰＥＴフィルム）との
密着性や、塗膜硬度、電気抵抗値々どの特性が劣るとい
う問題点があった。・However, currently, isocyanate blocks blocked with phenol, ε-caglolactam, polyamide resin, oximes, and β-ketocarbonyl compounds/
: 1: Use the method to remove streaks, price for a long time (160-18
0℃, 20 minutes or more), and low temperature and short time (120 to 16oC, 5 to 1Q minutes), including solvent-volatile resins.
However, when the film is cured, there is a problem that the properties such as adhesion to the substrate film (PET film), coating film hardness, and electrical resistance are inferior.
発明の目的
本発明は、上記のような従来の欠点を除去した低温、短
時間（１２０〜１５０℃、５分）で硬化するポットライ
フの長い、そして優れた塗膜特性を有する導電性塗料を
提供−することを目的とするものである。Purpose of the Invention The present invention provides a conductive paint that cures at low temperatures and in a short time (120 to 150°C, 5 minutes), has a long pot life, and has excellent coating properties, eliminating the above-mentioned conventional drawbacks. The purpose is to provide.
発明の構成
この目的を達成するために本発明の導電性塗料は、トリ
レンジインシアネートとトリメチロールプロパンの付加
体か、またはトリレンジイソシアネートの三量体をイミ
ダゾールでブロックしたイソシアネート再生体と、活性
水素を有する樹脂をバインダー成分とし、かつ導電Ｕ’
に含むことを特徴とするものである。Structure of the Invention In order to achieve this object, the conductive paint of the present invention uses an adduct of tolylene diisocyanate and trimethylolpropane, or an isocyanate regenerated product obtained by blocking a trimer of tolylene diisocyanate with imidazole, and an active A resin containing hydrogen is used as a binder component, and a conductive U'
It is characterized by including:
実施例の説明 本発明の実施例について以下に説明する。Description of examples Examples of the present invention will be described below.
マス、トリレンジイソシアネー） （ＴＤＩ ）と）リ
メチロールプロパンの付加体をイミダゾールでブロック
したインシアネート再生体１．６重量部、ＯＨ基価１０
０〜１６ｏ０ｑＡ０６Ｉｔ′の樹脂３３．０重量部、銀
粉５０．３重量部、溶剤１６．５重量部を加え、３本ロ
ールミルで６回混練した後、得られた塗料をスクリーン
印刷法を用いてＰＥＴフィルム上に塗布し、１６０℃、
６分間の熱風乾燥を行い塗膜を作った。Mass, tolylene diisocyanate) (TDI) and) 1.6 parts by weight of incyanate regenerated product blocked with imidazole, OH value 10
0 to 16o0qA06It', 33.0 parts by weight of resin, 50.3 parts by weight of silver powder, and 16.5 parts by weight of solvent were added and kneaded six times in a three-roll mill.The resulting paint was printed on PET using a screen printing method. Coated on film, heated at 160℃,
A coating film was formed by drying with hot air for 6 minutes.
また、上記インアネート再生体、樹脂、導電材の重量部
を種々変え、その他は同様の条件にて塗膜を形成した。Further, coating films were formed under the same conditions except that the weight parts of the recycled inanate, resin, and conductive material were varied.
この時、活性水素を有する樹脂については、いくつかの
種類でもって実施した。下記の表にそれらの配合比と、
得られた塗膜の硬化特性？示す。ここで、上記実施例に
おけるトリレンジイソシアネートとトリメチロールプロ
パンの付加体音イミダゾールでブロックしたイソシアネ
ート再生体の代りに、トリレンジイソシアネートの三量
体をイミダゾールでブロックしたインシアネート再生体
を用いた場合についても実施し、その配合比と硬化特性
を表に併せて示している。この後者のイソシアネート再
生体は、ＴＤＩ三量体とイミダゾールを溶剤中に混合し
、８０〜１００℃で８時間攪拌した後、精製したもので
、固形分１００％である。At this time, several types of resins having active hydrogen were used. The table below shows their blending ratio,
Curing characteristics of the resulting coating film? show. Here, in place of the regenerated isocyanate obtained by blocking the adduct imidazole of tolylene diisocyanate and trimethylolpropane in the above example, a regenerated inocyanate obtained by blocking a trimer of tolylene diisocyanate with imidazole is used. The compounding ratio and curing characteristics are also shown in the table. The latter isocyanate regenerated product is obtained by mixing TDI trimer and imidazole in a solvent, stirring the mixture at 80 to 100° C. for 8 hours, and then purifying the mixture and having a solid content of 100%.
（以 下 余 白 ）
注（１）インシアネート再生体Ａ
ＴＤＩ／）リメチロールプロパン付加体ヲイミダゾール
でブロックしたインシアネート再生体（固形分６０％）
〔第一工業製薬株式（２）インシアネート再生体Ｂ
ＴＤＩ三量体をイミダゾールでブロックしたイソシアネ
ート再生体（固形分１００％ ）〔第−工業製薬株式会
社製〕
（３）樹 脂 Ｃ
ＯＨ価１００〜１６０°ｑ／１ｏ６Ｉのポリエステルポ
リオール（固形分４０％）〔東洋紡績株式会社製〕
（４）樹 脂 Ｄ
ＯＲ価１００〜１６０°ｑ／１ｏ６ｇのポリエステルポ
リオール（固形分３０％）〔東洋紡線株式会社製〕
（６）樹 脂 Ｅ
ＯＨ価３１１°ｑ／Ｉｏ６ｇのアク１ノ２．ポ１ノオー
ル（固形分５０％）〔犬日本インキ化学工業株式会社製
〕
（６）樹 脂 Ｆ
Ｏ）ｆ価７１４°ｑ７１ｄ ｊｉの末端ＯＨ基含有ポリ
ブタジェン（固形分１ｏｏ％ ）（出光石油化学株式会
社製〕
（７）樹 脂 Ｇ
ＮＨ価１００°ｑ／１０６９ ’めＮｕ基含有ポリブタ
ジェン（固形分１００％）〔宇部興産株式会社製〕
（８）樹 脂 Ｈ
０８価４００ｑ／１０６ｇのポリウレタンエステル（固
形分４０％）〔日本ポリウレタン工業株式会社製〕
（９）銀 粉
鱗片状、樹枝状いずれの形状でも良い。(Margins below) Note (1) Regenerated incyanate A TDI/) Regenerated incyanate blocked with trimethylolpropane adduct woimidazole (solid content 60%)
[Daiichi Kogyo Seiyaku Co., Ltd. (2) Regenerated incyanate B Regenerated isocyanate obtained by blocking TDI trimer with imidazole (solid content 100%) [Manufactured by Daiichi Kogyo Seiyaku Co., Ltd.] (3) Resin C OH value 100 ~160°q/1o6I polyester polyol (solid content 40%) [manufactured by Toyobo Co., Ltd.] (4) Resin D Polyester polyol with OR value 100-160°q/1o6g (solid content 30%) [Toyobo Co., Ltd. (manufactured by the company) (6) Resin E OH value 311°q/Io6g ac 1-2. Polybutadiene (solid content 50%) [manufactured by Inu Nippon Ink Chemical Industry Co., Ltd.] (6) Resin F O) terminal OH group-containing polybutadiene with an f value of 714°q71d ji (solid content 10%) (Idemitsu Petrochemical Co., Ltd.) [manufactured by Ube Industries, Ltd.] (7) Resin G NH value 100°q/1069' Nu group-containing polybutadiene (solid content 100%) [manufactured by Ube Industries, Ltd.] (8) Resin H 08 value 400q/106g polyurethane ester ( (solid content 40%) [manufactured by Nippon Polyurethane Industries Co., Ltd.] (9) Silver It may be either flaky or dendritic.
（１０）密着度 基盤目接着テープ剥離テストで測定。(10) Adhesion degree Measured by base grain adhesive tape peel test.
（１１）硬 度 鉛筆硬度を測定。(11) Hardness Measuring pencil hardness.
また、上記表でイソシアネート再生体、樹脂、導電相の
数字は、それぞれ重量部を表わしており、これらの合計
が１０Ｑ重量部に足りない分は溶剤である。そして、表
より明らかなように硬化した塗膜は、ＰＥＴフィルムと
の密着性が良好で、鉛筆硬度Ｈ以上、面積抵抗０．１０
／口程度という優れた特性をもつ。ここで、密着度の剥
離テストは、塗膜上にナイフで縦、横１朋間隔に基盤目
状に傷をつけ、接着したテープを剥して何駒剥れるかを
見たものであり、１００／１００は１駒も剥れないこと
を示している。Further, in the above table, the numbers for the isocyanate regenerated material, resin, and conductive phase each represent parts by weight, and the portion that is insufficient to the total of 10Q parts by weight is the solvent. As is clear from the table, the cured coating film has good adhesion to the PET film, has a pencil hardness of H or higher, and an area resistance of 0.10.
/ It has excellent characteristics of about the same size as the mouth. Here, the adhesion peel test is to make scratches on the paint film with a knife in the shape of base lines at intervals of 1 square inch vertically and horizontally, peel off the adhesive tape, and see how many pieces can be peeled off. /100 indicates that not a single piece can be peeled off.
発明の効果
不発明の導電性塗料では、イミダゾールをブロック体と
したイソシアネート再生体を用いることにより、低温、
短時間で硬化し、しかも硬化塗膜の特性が上記の表に示
すように大幅に向」ニする。Effects of the Invention The inventive conductive paint uses a regenerated isocyanate containing imidazole as a block substance, which can be used at low temperatures.
It cures in a short time, and the properties of the cured film are greatly improved as shown in the table above.
したがって、本発明による導電性塗料は、低温。Therefore, the conductive paint according to the invention can be used at low temperatures.
短時間で硬化物性の良い塗膜が得られ、本塗料が用いら
れる製品の機能向上、品質向上に大いに役立つものであ
る。A coating film with good cured physical properties can be obtained in a short period of time, and is greatly useful for improving the functionality and quality of products in which this coating material is used.
Claims (1)
付加体か、またはトリレンジイソシアネートの三量体を
イミダゾールでブロックしたイソシアネート再生体と、
活性水素を有する樹脂をバインダル成分とし、かつ導電
相を含むことを特徴とする導電性塗料。An adduct of tolylene diisocyanate and trimethylolpropane, or a regenerated isocyanate obtained by blocking a trimer of tolylene diisocyanate with imidazole;
A conductive paint characterized by having a resin having active hydrogen as a binder component and containing a conductive phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8044184A JPS60223869A (en) | 1984-04-20 | 1984-04-20 | Electrically conductive paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8044184A JPS60223869A (en) | 1984-04-20 | 1984-04-20 | Electrically conductive paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60223869A true JPS60223869A (en) | 1985-11-08 |
Family
ID=13718343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8044184A Pending JPS60223869A (en) | 1984-04-20 | 1984-04-20 | Electrically conductive paint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60223869A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62135515A (en) * | 1985-12-09 | 1987-06-18 | Idemitsu Petrochem Co Ltd | Electroconductive polymer composition |
| JPS62138519A (en) * | 1985-12-11 | 1987-06-22 | Idemitsu Petrochem Co Ltd | Electrically conductive polymer composition |
| WO2005012428A1 (en) * | 2003-07-30 | 2005-02-10 | Zeon Corporation | Electroconductive composition, electroconductive coating, electroconductive fiber material and exothermic article in plane shape |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5684759A (en) * | 1979-12-13 | 1981-07-10 | Dainippon Toryo Co Ltd | Coat composition for paint |
-
1984
- 1984-04-20 JP JP8044184A patent/JPS60223869A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5684759A (en) * | 1979-12-13 | 1981-07-10 | Dainippon Toryo Co Ltd | Coat composition for paint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62135515A (en) * | 1985-12-09 | 1987-06-18 | Idemitsu Petrochem Co Ltd | Electroconductive polymer composition |
| JPS62138519A (en) * | 1985-12-11 | 1987-06-22 | Idemitsu Petrochem Co Ltd | Electrically conductive polymer composition |
| WO2005012428A1 (en) * | 2003-07-30 | 2005-02-10 | Zeon Corporation | Electroconductive composition, electroconductive coating, electroconductive fiber material and exothermic article in plane shape |
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