JPH06136570A - Decoloration preventing agent for copper - Google Patents
Decoloration preventing agent for copperInfo
- Publication number
- JPH06136570A JPH06136570A JP28825992A JP28825992A JPH06136570A JP H06136570 A JPH06136570 A JP H06136570A JP 28825992 A JP28825992 A JP 28825992A JP 28825992 A JP28825992 A JP 28825992A JP H06136570 A JPH06136570 A JP H06136570A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- discoloration
- decoloration
- benzotriazole
- ester
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、銅の表面に塗布して変
色を防止するために用いられる銅の変色防止剤に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copper discoloration preventive agent which is applied to the surface of copper to prevent discoloration.
【０００２】[0002]
【従来の技術】銅で形成される電気部品や、銅で回路を
形成されるプリント配線板、その他銅のメッキを表面に
形成した部品などにおいて、銅の表面は容易に腐食され
て変色されるために、変色防止剤を塗布して腐食変色を
防ぐことがおこなわれている。そしてこの銅の変色防止
剤としては、ベンゾトリアゾール系化合物を防錆剤とす
ると共に、パラフィン系又は動物性油脂を基油とし、こ
れらをアルコール系やハロゲン化炭化水素系の溶剤に分
散乃至溶解したものが提供されている。2. Description of the Related Art The surface of copper is easily corroded and discolored in electrical parts made of copper, printed wiring boards having a circuit formed of copper, and other parts having copper plated on the surface. Therefore, a discoloration preventive agent is applied to prevent corrosion discoloration. As the copper discoloration inhibitor, a benzotriazole-based compound is used as a rust inhibitor, and paraffin-based or animal fat / oil is used as a base oil, and these are dispersed or dissolved in an alcohol-based or halogenated hydrocarbon-based solvent. Things are offered.
【０００３】[0003]
【発明が解決しようとする課題】上記の組成の変色防止
剤を用いることによって銅の変色を防止する一定の効果
を得ることができるが、塩水噴霧試験等のきびしい腐食
環境では変色防止の作用が不十分で変色が発生するもの
であった。本発明は上記の点に鑑みてなされたものであ
り、塩水噴霧等のきびしい腐食環境でも変色防止の効果
を十分に得ることができる銅の変色防止剤を提供するこ
とを目的とするものである。The use of the anti-tarnish agent having the above composition can provide a certain effect of preventing the discoloration of copper, but it has the effect of preventing discoloration in a severe corrosive environment such as a salt spray test. Insufficient discoloration occurred. The present invention has been made in view of the above points, and an object thereof is to provide a copper discoloration inhibitor capable of sufficiently obtaining the effect of discoloration prevention even in a severe corrosive environment such as salt spray. .
【０００４】[0004]
【課題を解決するための手段】本発明に係る銅の変色防
止剤は、ベンゾトリアゾール系の防錆剤と、エステル系
合成油の基油を主成分として含有して成ることを特徴と
するものである。以下、本発明を詳細に説明する。ベン
ゾトリアゾール系の防錆剤としては、例えば５メチル−
ベンゾトリアゾールを用いることができる。またエステ
ル系合成油の基油としては、例えばネオペンチルポリオ
ールエステルを用いることができる。The copper discoloration inhibitor according to the present invention is characterized by containing a benzotriazole-based rust preventive and a base oil of an ester-based synthetic oil as main components. Is. Hereinafter, the present invention will be described in detail. Examples of benzotriazole-based rust preventives include 5-methyl-
Benzotriazole can be used. Further, as the base oil of the ester synthetic oil, for example, neopentyl polyol ester can be used.
【０００５】このベンゾトリアゾール系の防錆剤と、エ
ステル系合成油の基油を溶剤に分散乃至溶解させること
によって、銅変色防止剤を調製することができる。溶剤
としてはアルコール系溶剤やハロゲン化炭化水素、ある
いはこれらの混合物を用いるのが好ましい。ベンゾトリ
アゾール系の防錆剤の濃度が０．５〜１０ｇ／リットル
に、エステル系合成油の基油の濃度が０．５〜１０ｇ／
リットルになるように溶剤に分散乃至溶解させるのが好
ましい（尚、０．５〜１０ｇ／リットルとは溶剤１リッ
トルに対して０．５〜１０ｇ配合することを意味す
る）。A copper discoloration inhibitor can be prepared by dispersing or dissolving the benzotriazole type rust preventive and the ester synthetic base oil in a solvent. As the solvent, it is preferable to use an alcohol solvent, a halogenated hydrocarbon, or a mixture thereof. The concentration of the benzotriazole-based rust inhibitor is 0.5 to 10 g / liter, and the concentration of the ester synthetic base oil is 0.5 to 10 g / liter.
It is preferable to disperse or dissolve it in a solvent so that the volume becomes 1 liter (note that 0.5 to 10 g / liter means 0.5 to 10 g per 1 liter of solvent).
【０００６】このように調製した変色防止剤を銅の表面
に塗布して乾燥することによって、銅の表面を腐食から
保護し、銅の表面に変色が発生することを防ぐことがで
きるものである。By applying the discoloration preventive agent thus prepared to the surface of copper and drying it, the surface of copper can be protected from corrosion and the occurrence of discoloration on the surface of copper can be prevented. .
【０００７】[0007]
【実施例】次に、本発明を実施例によって例証する。 （実施例）溶剤としてフロン２２５が９０％、エタノー
ルが１０％の混合溶剤を用い、防錆剤として５メチル−
ベンゾトリアゾールを２．５ｇ／リットルの濃度で、基
油としてネオペンチルポリオールエステル（日本油脂株
式会社製「Ｃ−３３７Ａ」）を５．０ｇ／リットルの濃
度でそれぞれ溶解することによって、銅の変色防止剤を
調製した。The invention will now be illustrated by the examples. (Example) As a solvent, a mixed solvent of 90% of Freon 225 and 10% of ethanol was used, and 5 Methyl- was used as an anticorrosive agent.
Prevention of copper discoloration by dissolving benzotriazole at a concentration of 2.5 g / liter and neopentyl polyol ester (“C-337A” manufactured by NOF CORPORATION) as a base oil at a concentration of 5.0 g / liter, respectively. The agent was prepared.
【０００８】（比較例）基油としてパラフィンを用いる
ようにした他は実施例と同様にして変色防止剤を調製し
た。上記のように調製した実施例及び比較例の変色防止
剤を銅箔で作成されるダイヤフラムの表面にそれぞれ塗
布して乾燥することによって表面処理した。そしてこの
ように変色防止剤で表面処理したダイヤフラムについて
ＪＩＳに基づいて塩水噴霧試験をおこない、２７０時間
塩水噴霧処理後の腐食面積を測定した。測定結果は、比
較例のものでは腐食面積は１００％であったが、実施例
のものでは腐食面積は１０％以下であり、本発明の銅変
色防止剤の変色防止効果が実証された。Comparative Example A discoloration preventive agent was prepared in the same manner as in Example except that paraffin was used as the base oil. The discoloration-preventing agents of Examples and Comparative Examples prepared as described above were applied to the surfaces of the diaphragms made of copper foil, respectively, and dried for surface treatment. Then, the diaphragm surface-treated with the discoloration preventive agent was subjected to a salt spray test based on JIS to measure the corrosion area after the salt spray treatment for 270 hours. The measurement results showed that the corrosion area of the comparative example was 100%, but the corrosion area of the example was 10% or less, demonstrating the anti-discoloration effect of the copper anti-tarnish agent of the present invention.
【０００９】[0009]
【発明の効果】上記のように本発明に係る銅の変色防止
剤は、ベンゾトリアゾール系の防錆剤と、エステル系合
成油の基油を主成分として含有するので、基油として含
有するエステル系合成油によって変色防止性を高めるこ
とができ、塩水噴霧等のきびしい腐食環境でも変色防止
の効果を十分に得ることができるものである。As described above, the copper discoloration inhibitor according to the present invention contains a benzotriazole type rust preventive and a base oil of an ester synthetic oil as main components. The discoloration-preventing property can be enhanced by the system synthetic oil, and the discoloration-preventing effect can be sufficiently obtained even in a severe corrosive environment such as salt spray.
Claims (1)
テル系合成油の基油を主成分として含有して成ることを
特徴とする銅の変色防止剤。1. A copper discoloration preventive comprising a benzotriazole-based rust preventive and a base oil of an ester-based synthetic oil as main components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28825992A JPH06136570A (en) | 1992-10-27 | 1992-10-27 | Decoloration preventing agent for copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28825992A JPH06136570A (en) | 1992-10-27 | 1992-10-27 | Decoloration preventing agent for copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06136570A true JPH06136570A (en) | 1994-05-17 |
Family
ID=17727882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28825992A Pending JPH06136570A (en) | 1992-10-27 | 1992-10-27 | Decoloration preventing agent for copper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06136570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263392A (en) * | 2006-03-27 | 2007-10-11 | Toshiba Corp | Magnetic refrigerating material and magnetic refrigerating device |
-
1992
- 1992-10-27 JP JP28825992A patent/JPH06136570A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263392A (en) * | 2006-03-27 | 2007-10-11 | Toshiba Corp | Magnetic refrigerating material and magnetic refrigerating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20020903 |