JPS6233319B2 - - Google Patents
Info
- Publication number
- JPS6233319B2 JPS6233319B2 JP58185750A JP18575083A JPS6233319B2 JP S6233319 B2 JPS6233319 B2 JP S6233319B2 JP 58185750 A JP58185750 A JP 58185750A JP 18575083 A JP18575083 A JP 18575083A JP S6233319 B2 JPS6233319 B2 JP S6233319B2
- Authority
- JP
- Japan
- Prior art keywords
- paint
- bath
- electrodeposition
- coating film
- solid content
- 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.)
- Expired
Links
- 239000003973 paint Substances 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000002736 nonionic surfactant Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 2
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 claims 2
- MZZSDCJQCLYLLL-UHFFFAOYSA-N Secalonsaeure A Natural products COC(=O)C12OC3C(CC1=C(O)CC(C)C2O)C(=CC=C3c4ccc(O)c5C(=O)C6=C(O)CC(C)C(O)C6(Oc45)C(=O)OC)O MZZSDCJQCLYLLL-UHFFFAOYSA-N 0.000 claims 1
- 229910000765 intermetallic Inorganic materials 0.000 claims 1
- 238000004070 electrodeposition Methods 0.000 description 22
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000000654 additive Substances 0.000 description 8
- 239000002270 dispersing agent Substances 0.000 description 8
- 239000002932 luster Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001111 Fine metal Inorganic materials 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- -1 If necessary Substances 0.000 description 1
- SYGQIDCWYPQSJD-UHFFFAOYSA-N C1CO1.Oc1ccc2ccccc2c1 Chemical compound C1CO1.Oc1ccc2ccccc2c1 SYGQIDCWYPQSJD-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Description
【発明の詳細な説明】
本発明は、被塗物表面に金属調の塗膜を形成さ
せる方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a metallic coating on the surface of an object to be coated.
金属そのものを素材としたもの、または、金属
ないし導電性の付与されたプラスチツクを素材と
し、その上に防食ないし装飾目的で金属めつきし
た物品は、例えばニツケルめつきのようなキブイ
金属光沢を有する場合が多く、それ自体が好まれ
る場合もあるが、その物品が事務用機器、家庭用
音響機器、厨房用電気機器などの部品に使用せら
れる場合には、そのキブさが緩和されたものであ
る金属調であることが望まれる場合が多い。 Items made of metal itself or made of metal or conductive plastic with metal plating for corrosion protection or decorative purposes, for example, if they have a bright metallic luster such as nickel plating. However, if the item is used as a part for office equipment, household audio equipment, kitchen electrical equipment, etc., the requirements are relaxed. A metallic look is often desired.
本発明は、そのような需要に応えるべく為され
たものであつて、金属または鉱物の微粉末を、分
散剤、必要に応じて着色剤と共に添加した改質電
着塗料により、電着塗装することを特徴とする被
塗物品に金属調塗膜を形成する方法である。 The present invention was developed in response to such demands, and uses a modified electrodeposition paint to which fine metal or mineral powder is added together with a dispersant and, if necessary, a colorant. This is a method for forming a metallic coating film on a coated article.
本発明の適用される被塗物とは、前述した各種
物品、つまり素地が金属である物品、素地が金属
やプラスチツクスであつて、表面に金属めつきさ
れた各種物品を指称する。むろん塗装は電着塗装
であるから、少くとも表面は通電性がない物品は
含まれない。 The articles to be coated to which the present invention is applied refer to the various articles mentioned above, that is, articles whose base material is metal, and various articles whose base material is metal or plastic and whose surface is plated with metal. Of course, since the coating is electrodeposition, it does not include articles whose surfaces do not have electrical conductivity.
本発明方法に使用される塗料は、電着塗料の改
質されたものである。周知のように、電着塗料は
カチオン型とアニオン型とに２大別されるが、本
発明には、その何れもが適用できる。 The paint used in the method of the invention is a modified electrocoating paint. As is well known, electrodeposition paints are broadly classified into cationic and anionic paints, and both can be applied to the present invention.
その改質は、添加剤の添加によつて行われる。
第１の添加剤は、合金を含む金属の微粉末であつ
て、その典型例はアルミニウムや黄銅である。ま
たそのような金属ではないが、金属同様にキブイ
光沢をもつ鉱物、例えば雲母やセラミツクスの微
粉末も、金属微粉末同様添加使用できる。こゝに
微粉末というのは、次記する分散剤の助力によ
り、電着塗料中に、均一に分散され、容易に相分
離を来さない程度に微粉末であることを意味し、
強い数値を挙げれば、平均粒径として0.1〜２μ
程度のものを指す。また、その添加量は、実験的
に添加さるべき塗料の固形分に対し１〜２％程度
が適当とされる。 The modification is carried out by adding additives.
The first additive is a fine powder of metal containing an alloy, typical examples of which are aluminum and brass. Further, fine powders of minerals such as mica and ceramics, which are not such metals but have a lustrous luster like metals, can also be used in addition in the same way as fine metal powders. Here, fine powder means that it is fine enough to be uniformly dispersed in the electrodeposition paint with the help of the dispersant described below and does not easily cause phase separation.
To give a strong value, the average particle size is 0.1~2μ
Refers to something of a degree. Moreover, the amount of addition thereof is experimentally determined to be approximately 1 to 2% based on the solid content of the paint to be added.
添加剤の第２は分散剤であつて、このものゝ添
加により、金属微粉末は、通常条件下にも長時間
均一に塗料浴槽内に保持される。そのような分散
剤として最も適当なものは、界面活性剤とくに非
イオン界面活性剤である。 The second additive is a dispersant, which allows the fine metal powder to be maintained uniformly in the paint bath for a long time even under normal conditions. The most suitable such dispersants are surfactants, especially nonionic surfactants.
何故なら、アニオン系界面活性剤をアニオン電
着塗装に添加使用すると、当然前記界面活性剤は
電解浴中で負に帯電しており、通電時にビヒクル
と共に陽極たる被塗物に泳動して行くのでその結
果、著しい成品外観の不良を来し、また、カチオ
ン電着塗装に用いた場合には、カチオンビヒクル
と即時に反応して不溶性のゲル化物を生じ、その
結果浴の使用不能を来すからである。カチオン系
界面活性剤も、対象浴は異るが、上記アニオン系
界面活性剤の場合と全く同じ現象を来す。 This is because when an anionic surfactant is added to anionic electrodeposition coating, the surfactant is naturally negatively charged in the electrolytic bath, and when electricity is applied, it migrates with the vehicle to the object to be coated, which is the anode. As a result, the appearance of the product is significantly deteriorated, and when used in cationic electrodeposition coating, it immediately reacts with the cationic vehicle to form an insoluble gelled product, resulting in the bath becoming unusable. It is. Cationic surfactants also cause exactly the same phenomenon as the anionic surfactants, although the target baths are different.
なお、非イオン界面活性剤の添加量は実験的
に、添加されるべき塗料の固形分に対し１〜５％
程度が適当とされる。 The amount of nonionic surfactant added is experimentally determined to be 1 to 5% based on the solid content of the paint to be added.
The degree is considered appropriate.
添加剤の第３は、着色料である。通常の電着塗
装そのものゝ塗膜は、透明ないし、淡黄透明色で
あるが、意匠的な好みから着色が要求せられる場
合に添加するのであつて、そのような要求がない
場合には、添加しないでよい。最も適当な着色料
は有機顔料である。有機顔料は一種の充填材効果
もあつて、折角添加した金属微粉末の与える金属
様効果を損う傾向があるからである。 The third additive is a coloring agent. Normal electrodeposition coating itself is transparent or pale yellow and transparent, but it is added when coloring is required due to design preference, and when there is no such requirement, Do not add. The most suitable colorants are organic pigments. This is because organic pigments have a kind of filler effect and tend to impair the metal-like effect provided by the finely added metal powder.
本発明方法に使用する塗料浴を製造するには、
所定電着塗料に、上述した各種添加剤を添加し、
要すれば水を加えて電着条件に最も適した固形分
濃度にする。その際撹拌を適用すれば速かに均一
な改質された塗料浴となる。塗料浴中の固形分含
量は通常６〜20％程度である。 To produce the paint bath used in the method of the invention,
Adding the various additives mentioned above to the specified electrodeposition paint,
If necessary, water is added to obtain the solids concentration most suitable for the electrodeposition conditions. If stirring is applied at this time, a uniform and modified paint bath can be quickly obtained. The solids content in the paint bath is usually on the order of 6-20%.
このような改質された電着塗料浴により電着を
行うには、通常の被塗物係着用治具を用い、これ
に常法通り被塗物を係着し、前記塗料浴中に懸吊
して、撹拌下に所定電解条件に服せしめる。 In order to perform electrodeposition using such a modified electrodeposition paint bath, a usual jig for attaching the object to be coated is used, the object to be coated is attached to this in the usual manner, and the object is suspended in the paint bath. It is hung and subjected to the specified electrolytic conditions under stirring.
撹拌は、電解浴中の固形分の分散効果をより高
めるために必要とされるのであつて、例えばプロ
ペラ型のポータブル撹拌機を電解質に取りつける
ことによつて、容量にその目的を達成することが
できる。また、ポンプによつて、電解槽中の電解
浴を毎時７〜８回程度循環させても同様な撹拌効
果が挙げられる。 Stirring is required to further enhance the dispersion effect of solids in the electrolytic bath, and by attaching a propeller-type portable stirrer to the electrolyte, for example, this purpose can be achieved within the capacity. can. A similar stirring effect can also be obtained by circulating the electrolytic bath in the electrolytic cell about 7 to 8 times per hour using a pump.
電解条件は、電解電圧10〜200V、浴温度15〜
30℃、電流密度0.2〜10A／ｄm2、通電時間30秒
〜３分間程度であつて、この条件は、通常の電解
条件ととくに変つたところはない。 Electrolysis conditions are electrolysis voltage 10~200V, bath temperature 15~
The temperature was 30° C., the current density was 0.2 to 10 A/dm 2 , and the current application time was about 30 seconds to 3 minutes, and these conditions were not particularly different from normal electrolytic conditions.
このようにして所定電着塗装を行つたら、塗膜
の電着した被塗物を浴外にとり出し、必要あれ
ば、水洗後焼付に付する。本発明に係る塗料浴の
主体が電着塗料であるから、この焼付は欠くこと
のできない操作であるのは当然である。焼付条件
は通常160〜200℃、20〜30分程度である。 After the predetermined electrodeposition coating has been carried out in this manner, the object to be coated with the electrodeposited coating film is taken out of the bath and, if necessary, is washed with water and subjected to baking. Since the main component of the paint bath according to the present invention is an electrodeposition paint, it is natural that this baking is an indispensable operation. Baking conditions are usually 160-200°C and about 20-30 minutes.
以下実施例を挙げる。 Examples are given below.
実施例 １
厚さ10μのニツケルめつきを施したタテ10×ヨ
コ５×アツサ１mmの鉄板を被塗物として、常法通
りの係着用治具に係着し、つぎの改質塗料浴中に
懸吊して電着塗装を行つた。Example 1 A nickel-plated iron plate with a thickness of 10μ and a length of 10 mm, a width of 5 mm, and a height of 1 mm was used as the object to be coated, and it was attached to a conventional attachment jig and placed in the following modified paint bath. I hung it up and applied the electrodeposition coating.
使用した塗料は、分子量20000〜22000の水分散
性アクリル−メラミン系アニオン電着塗料であつ
て、これに平均粒径0.3μのアルミペーストを10
ｇ／を添加し、同時に分散剤４ｇ／を添加し
て改質したものである。使用した分散剤は、ノニ
ルフエノール型非イオン界面活性剤（エチレンオ
キサイド付加モル数、25）である。 The paint used was a water-dispersible acrylic-melamine anionic electrodeposition paint with a molecular weight of 20,000 to 22,000.
This was modified by adding 4 g/g of dispersant and 4 g/g of dispersant at the same time. The dispersant used was a nonylphenol type nonionic surfactant (number of moles of ethylene oxide added, 25).
水で稀釈して固型分10％に調整した上記改質塗
料浴中に、前記被塗物を懸吊し、プロペラ型撹拌
による機械的撹拌下に電解電圧100V、電流密度
0.5A／ｄm2、通電時間３分間の電着塗装を行つ
た。ついで被塗物を浴中から引き上げ、ついで
180℃で20分間焼付処理を施した。その結果得ら
れた塗膜の光沢は、ニツケルめつきのキブイ光沢
が緩和され、穏やかな金属調のものとなつてい
た。しかのみならず、その塗膜の物理的性能は、
改良しない塗料の場合と実質差が認められなかつ
た。 The object to be coated was suspended in the modified paint bath diluted with water and adjusted to a solid content of 10%, and electrolyzed at a voltage of 100 V and a current density of
Electrodeposition coating was performed at 0.5 A/dm 2 and for 3 minutes. Next, the object to be coated is lifted out of the bath, and then
Baking treatment was performed at 180°C for 20 minutes. The gloss of the resulting coating film had a mild metallic luster, with the harsh luster of nickel plating softened. Not only that, but the physical performance of the coating film is
No substantial difference was observed compared to the case of unimproved paint.
実施例 ２
タテ10×ヨコ５×アツサ１mmの18−８ステンレ
ス板を被塗物とし、常法通り係着用治具に従着
し、つぎの改質塗料浴中に懸吊して電着塗装を行
つた。Example 2 An 18-8 stainless steel plate measuring 10 mm in length x 5 mm in width x 1 mm in height was used as the object to be coated, attached to a fixing jig in the usual manner, and suspended in the next modified paint bath for electrodeposition coating. I went there.
使用した塗料は水性カチオン型アクリル系電着
塗料であつて、これを次記３種の添加物によつて
改質した。 The paint used was a water-based cationic acrylic electrodeposition paint, which was modified with the following three additives.
黄銅微粉末：平均粒径0.5μ………５ｇ／
分散剤：β−ナフトールのエチレンオキサイド20
モル付加物である非イオン界面活性剤………３
ｇ／
着色剤：フタロシアニングリーン（C.I.74260）
………0.8ｇ／
上記添加物を添加後、水を加えて混合し、固形
分15％に調整したものを電着塗料浴となし、これ
に前記被塗物を懸吊し、電解電圧100V、電流密
度0.6A／ｄm2、通電時間２分間の電着塗装を行
つた。この塗装操作間、電解浴をポンプにより７
〜８回循環させることによつて撹拌した。Brass fine powder: average particle size 0.5μ...5g/Dispersant: β-naphthol ethylene oxide 20
Nonionic surfactant that is a molar adduct...3
g/ Colorant: Phthalocyanine Green (CI74260)
………0.8g/ After adding the above additives, water is added and mixed to adjust the solid content to 15%, which is used as an electrodeposition paint bath. Electrodeposition coating was performed at a current density of 0.6 A/dm 2 and a current application time of 2 minutes. During this painting operation, the electrolytic bath is pumped to
Stir by circulating ~8 times.
ついで被塗物を浴中から引き上げ、160℃30分
間の焼付処理に付した。 The object to be coated was then taken out of the bath and subjected to a baking treatment at 160°C for 30 minutes.
得られた塗膜は、緩和された金属光沢を有する
赤色塗膜であつて、その物性は、添加剤のない塗
料で電着塗装したものと実質異るところはなかつ
た。 The resulting coating film was a red coating film with a moderated metallic luster, and its physical properties were not substantially different from those obtained by electrocoating with a coating material without additives.
Claims (1)
微粉末を塗料固形分に対し１〜２％程度および非
イオン界面活性剤を塗料固形分に対して１〜５％
程度添加し、固形分含量６〜20％の塗料浴中で撹
拌下に電着塗装することを特徴とする被塗物品に
金属調塗膜を形成する方法。 ２ 非イオン界面活性剤がノニルフエノール型非
イオン界面活性剤エチレンオキサイイド付加物又
はβ−ナフトールのエチレンオキサイド付加物で
ある特許請求の範囲第１項記載の金属調塗膜を形
成する方法。 ３ 有料顔料を添加して行う特許請求の範囲第１
項または第２項記載の金属調塗膜を形成する方
法。[Claims] 1. Approximately 1 to 2% of aluminum or brass fine powder with an average particle size of 0.1 to 2 μm based on the solid content of the paint, and 1 to 5% of a nonionic surfactant based on the solid content of the paint.
1. A method for forming a metallic coating film on a coated article, the method comprising adding a certain amount of a metallic compound to a coated article and electrodepositing the coating while stirring in a paint bath having a solid content of 6 to 20%. 2. The method for forming a metallic coating film according to claim 1, wherein the nonionic surfactant is an ethylene oxide adduct of a nonylphenol type nonionic surfactant or an ethylene oxide adduct of β-naphthol. 3 Claim No. 1 made by adding a paid pigment
A method for forming a metallic coating film according to item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18575083A JPS6077993A (en) | 1983-10-03 | 1983-10-03 | Formation of metallic paint film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18575083A JPS6077993A (en) | 1983-10-03 | 1983-10-03 | Formation of metallic paint film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6077993A JPS6077993A (en) | 1985-05-02 |
| JPS6233319B2 true JPS6233319B2 (en) | 1987-07-20 |
Family
ID=16176207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18575083A Granted JPS6077993A (en) | 1983-10-03 | 1983-10-03 | Formation of metallic paint film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6077993A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02107318U (en) * | 1989-02-15 | 1990-08-27 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0759757B2 (en) * | 1988-12-17 | 1995-06-28 | 出光興産株式会社 | Thin film manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5024980A (en) * | 1973-02-28 | 1975-03-17 | ||
| JPS5117590A (en) * | 1974-08-05 | 1976-02-12 | Yazaki Corp | KONEKUTAHAUJINGUHENO TAAMINARUTORITSUKEKIKO |
| JPS5547120A (en) * | 1978-09-08 | 1980-04-03 | Fuji Kasui Kogyo Kk | Removal of mercury in gas |
-
1983
- 1983-10-03 JP JP18575083A patent/JPS6077993A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5024980A (en) * | 1973-02-28 | 1975-03-17 | ||
| JPS5117590A (en) * | 1974-08-05 | 1976-02-12 | Yazaki Corp | KONEKUTAHAUJINGUHENO TAAMINARUTORITSUKEKIKO |
| JPS5547120A (en) * | 1978-09-08 | 1980-04-03 | Fuji Kasui Kogyo Kk | Removal of mercury in gas |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02107318U (en) * | 1989-02-15 | 1990-08-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6077993A (en) | 1985-05-02 |
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