JPH03229887A - Removing agent for sulfide on silver alloy surface and method for removing sulfide using the same - Google Patents
Removing agent for sulfide on silver alloy surface and method for removing sulfide using the sameInfo
- Publication number
- JPH03229887A JPH03229887A JP2202490A JP2202490A JPH03229887A JP H03229887 A JPH03229887 A JP H03229887A JP 2202490 A JP2202490 A JP 2202490A JP 2202490 A JP2202490 A JP 2202490A JP H03229887 A JPH03229887 A JP H03229887A
- Authority
- JP
- Japan
- Prior art keywords
- sulfide
- silver alloy
- weight
- silver
- acid
- 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
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910001316 Ag alloy Inorganic materials 0.000 title claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 11
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 18
- -1 polyoxyethylene Polymers 0.000 claims abstract description 13
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000005215 alkyl ethers Chemical class 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 5
- 229910052738 indium Inorganic materials 0.000 claims abstract description 4
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- 239000010953 base metal Substances 0.000 claims abstract description 3
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 3
- 239000004744 fabric Substances 0.000 claims abstract description 3
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 3
- 229910052718 tin Inorganic materials 0.000 claims abstract description 3
- 150000007524 organic acids Chemical class 0.000 claims description 16
- 235000005985 organic acids Nutrition 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 125000006353 oxyethylene group Chemical group 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 239000012459 cleaning agent Substances 0.000 abstract description 6
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 abstract description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 150000002148 esters Chemical class 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 150000007513 acids Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- 238000005486 sulfidation Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 150000004763 sulfides Chemical class 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、銀合金の表面に生成した黒色硫化物を洗浄な
いし払拭して除去するために用いる硫化物の除去剤及び
これを用いた硫化物の除去方法に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a sulfide remover used to remove black sulfide formed on the surface of a silver alloy by cleaning or wiping it, and a sulfide remover using the same. It concerns a method of removing objects.
（従来の技術）
従来、銀合金の表面に発生した黒色硫化物の除去法とし
ては、界面活性剤と研磨材とを混合したクリーム状洗浄
剤を用いて機械的に除去する方法、硝酸等の無機酸によ
る酸洗法、またはシアン化アルカリによる洗浄法が知ら
れている。(Prior art) Conventionally, methods for removing black sulfide generated on the surface of silver alloys include mechanical removal using a cream-like cleaning agent mixed with a surfactant and abrasive, and methods using nitric acid, etc. A pickling method using an inorganic acid or a cleaning method using an alkali cyanide is known.
しかし、上記研磨材入りのクリーム状洗浄剤では洗浄効
果が小さく、シかも研磨材により合金の表面を傷つける
可能性が大きい、酸洗法に用いる硝酸は硬い酸であるた
め、強力に素地まで溶解させるおそれがあるので濃度等
の調製が難しいという問題点がある。また、シアン化ア
ルカリは毒性が強く、実用的でない。そして、上記従来
の何れの方法による場合にも、硫化物除去後の銀合金表
面に硫化抵抗性を付与することができない。However, the cleaning effect of the above-mentioned cream-like cleaning agents containing abrasives is small, and there is a high possibility that the abrasives may damage the surface of the alloy.The nitric acid used in the pickling method is a hard acid, so it strongly dissolves even the base material. There is a problem in that it is difficult to adjust the concentration etc. because there is a risk of causing Furthermore, alkali cyanide is highly toxic and is not practical. In any of the above conventional methods, sulfidation resistance cannot be imparted to the surface of the silver alloy after sulfide has been removed.
（発明が解決しようとする課題）
本発明は、上記に鑑みてなされたもので、銀合金の表面
を傷つけず、黒色硫化物を簡単に除去し、さらに耐硫化
性を向上させることができる硫化物の除去剤及びこれを
用いた硫化物の除去方法を提供することを課題としてい
る。(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned problems. An object of the present invention is to provide an agent for removing sulfides and a method for removing sulfides using the same.
（課題を解決するための手段）
上記課題を解決するため１本発明においては、クエン酸
、シュウ談等の二種以上の低級有機酸を２〜２ｏ重量％
、炭素数１２〜１８の高級脂肪族アミンを０．５〜５．
０重量％、高級アルコールとポリオキシエチレンからな
るアルキルエーテルのリン酸エステル塩であるアルキル
エーテルリン酸ニスチル塩を５〜２５重量％含有させて
銀合金の硫化物除去剤を構成した。しかして、この硫化
物除去剤を用いて銀合金の表面に発生した黒色硫化物を
除去する方法として、銀合金を硫化物除去剤に浸漬して
水洗するか、若しくは硫化物除去剤を布等に含浸させて
銀合金の表面の硫化物を拭き取る方法を採用した。本発
明の硫化物除去剤は、特に、銀にインジウム、アルミニ
ウム、錫、亜鉛。(Means for Solving the Problems) In order to solve the above problems, 1 in the present invention, 2 to 20% by weight of two or more lower organic acids such as citric acid and citric acid, etc.
, a higher aliphatic amine having 12 to 18 carbon atoms in an amount of 0.5 to 5.
A sulfide remover for silver alloys was prepared by containing 0% by weight and 5 to 25% by weight of alkyl ether nystil phosphate, which is a phosphate ester salt of an alkyl ether consisting of a higher alcohol and polyoxyethylene. Therefore, as a method for removing black sulfide generated on the surface of a silver alloy using this sulfide removing agent, the silver alloy is immersed in the sulfide removing agent and washed with water, or the sulfide removing agent is applied with a cloth, etc. A method was adopted in which the sulfide on the surface of the silver alloy was wiped off by impregnating it with silver. The sulfide removal agent of the present invention is particularly suitable for silver, indium, aluminum, tin, and zinc.
ガリウム、カドミウム等の卑金属を二種以上含む銀合金
に適用する場合に顕著な洗浄効果を発揮する。It exhibits a remarkable cleaning effect when applied to silver alloys containing two or more types of base metals such as gallium and cadmium.
（作 用）
本発明においては、有機酸を２〜２０重量％に限定する
ことにより、無機層に比べて反応が緩やかに進行し、除
去の度合を柔軟に調整しながら、硫化物を除去すること
が可能となった。二種以上の有機酸を複合して含有させ
ると、一種の場合と比較して、硫化物の除去作用が向上
することが認められる。また、二種の有機酸でも２重量
％以下では酸性度が低いため、効果が現われるのか遅く
なり、２０重量％以上では有機酸が沈澱する二とがある
。(Function) In the present invention, by limiting the organic acid to 2 to 20% by weight, the reaction proceeds more slowly than in the inorganic layer, and sulfides can be removed while flexibly adjusting the degree of removal. It became possible. It is recognized that when two or more types of organic acids are contained in combination, the sulfide removal effect is improved compared to when only one type of organic acid is contained. Furthermore, if the two types of organic acids are less than 2% by weight, the acidity is low and the effect will be slow to appear, and if it is more than 20% by weight, the organic acids may precipitate.
アルキルエーテルリン酸エステル塩は界面活性剤であり
、銀合金表面の脱脂および硫化物内への浸透作用が有機
酸との組合せで最も効果的に作用する配合比は５〜２５
重量％の範囲である。５重量％以下では脱脂が不十分で
あり、２５重量％では却って有機酸の効果を弱めてしま
う。The alkyl ether phosphate ester salt is a surfactant, and the blending ratio at which it works most effectively in combination with an organic acid is 5-25 to degrease the surface of the silver alloy and penetrate into the sulfide.
% by weight. If the amount is less than 5% by weight, degreasing will be insufficient, and if it is 25% by weight, the effect of the organic acid will be weakened.
脱脂族アミンは有機酸に対し抑制剤として作用し、反応
を緩和させると共に、硫化物除去後の銀合金表面に直ち
に吸着して表面を保護し、耐硫化性を向上させる。脱脂
族アミンが０．５重量％以下では耐硫化性向上の効果が
弱く、５．０重量％以上では抑制剤として有機酸の効果
を必要以上に弱める。The degreasing amine acts as an inhibitor against organic acids, relaxing the reaction, and immediately adsorbs onto the surface of the silver alloy after sulfide has been removed, protecting the surface and improving sulfidation resistance. When the amount of the defatted amine is less than 0.5% by weight, the effect of improving sulfidation resistance is weak, and when it is more than 5.0% by weight, the effect of the organic acid as an inhibitor is weakened more than necessary.
（実施例）
本発明の詳細な説明する。純銀及び７．５重量％Ｃｕを
含有する銀合金、Ｉｎ及びＡ１を合わせて５重量％含有
する銀合金、Ｉｎ、ＡＩ及びＺｎを合わせて５重量％含
有する銀合金、Ｉｎ、Ａ１、Ｚｎ及びＣｕさらにＧａ、
Ｓｕを合わせて７゜５重量％含有する銀合金を、夫々予
め硫化ソーダ水溶液に浸漬して表面に硫化物を生成させ
、これを試験片とする。(Example) The present invention will be explained in detail. A silver alloy containing pure silver and 7.5% by weight of Cu, a silver alloy containing a total of 5% by weight of In and A1, a silver alloy containing a total of 5% by weight of In, AI and Zn, In, A1, Zn and Cu and also Ga,
Silver alloys containing a total of 7.5% by weight of Su were immersed in an aqueous sodium sulfide solution to form sulfides on the surface, and these were used as test pieces.
試験片を洗浄するための洗浄剤水溶液は、純水に、界面
活性剤の高級アルコールとポリオキシエチレンとからな
るアルキルエーテルリン酸エステル塩を溶かし、少し加
熱しながらクエン酸、シュウ酸等の二種以上の低級有機
酸、及び炭素数１２〜１８の高級脱脂族アミンを溶かし
込むことにより調製する。そして、各成分の配合比を変
えて１４種の洗浄剤水溶液を作った。これらの洗浄剤の
成分を第１表に示す。A detergent aqueous solution for cleaning the test piece is prepared by dissolving an alkyl ether phosphate salt consisting of a higher alcohol and polyoxyethylene as a surfactant in pure water, and then diluted with citric acid, oxalic acid, etc. while slightly heating. It is prepared by dissolving one or more lower organic acids and a higher defatted amine having 12 to 18 carbon atoms. Then, 14 types of detergent aqueous solutions were prepared by changing the blending ratio of each component. The ingredients of these cleaning agents are shown in Table 1.
また、第１表の各洗浄剤水溶液を用いて純銀及び各種銀
合金表面の黒色硫化物を洗浄した試験の結果を第２表に
示す。第２表において、硫化物の除去能力を「不良」、
「良」、「優」で区別した。Further, Table 2 shows the results of tests in which black sulfides on the surfaces of pure silver and various silver alloys were cleaned using each of the aqueous cleaning solutions shown in Table 1. In Table 2, sulfide removal ability is classified as "poor",
They were classified as ``good'' and ``excellent.''
「優」は、３分以内に黒色硫化物が除去できたもの、「
良」は、１０分以内に除去できたもの、ｒ不良」は、１
０分以内に除去できなかったもの、洗浄剤中に沈澱物が
現われたもの及び洗浄後に耐硫化性の向上が観察されな
かったものである。"Excellent" means that black sulfide was removed within 3 minutes;
"Good" means that it was removed within 10 minutes, "r-bad" means that it was removed within 10 minutes.
Those that could not be removed within 0 minutes, those where precipitates appeared in the cleaning agent, and those where no improvement in sulfidation resistance was observed after cleaning.
（以下余白）
第１表
洗浄剤水溶液成分表
（重量％）
第２表
洗浄試験結果
（合金成分中の数字は重量％）
Ａｇ−７，５Ｘは、Ａｇ・７．５（■ｎ−Ａ１・Ｃｕ−
Ｇａ−２ｎ−３ｕ）備考
Ｎｏ、９は沈殿物が見られた。(Leaving space below) Table 1 Cleaning agent aqueous solution composition table (wt%) Table 2 Cleaning test results (numbers in alloy components are weight%) Ag-7,5X is Ag・7.5 (■n-A1・Cu-
Ga-2n-3u) Note No. 9: Precipitates were observed.
第１，２表かられかるように、有ｎａが２ｕ重量％を越
えると沈澱が生じ易く、２重量％以下であると除去効果
が弱く、また一種の有機酸だけであると効果が弱い。脂
肪族アミンが０．５重量％以下では洗浄後の耐硫化性が
向上せず、有機酸の濃い成分では銀合金の表面を荒す。As can be seen from Tables 1 and 2, if the content of Na exceeds 2% by weight, precipitation tends to occur, if it is less than 2% by weight, the removal effect is weak, and if only one type of organic acid is used, the effect is weak. If the content of aliphatic amine is less than 0.5% by weight, the sulfidation resistance after washing will not be improved, and if the content is high in organic acid, the surface of the silver alloy will be roughened.
界面活性剤のアルキルニーチルリン駿エステルは５重量
％以下では有機酸の沈澱が生じたり、浸透速度が遅く脱
脂も不十分である３２５重１％以上では硫化物の除去効
果が弱くなる。If the surfactant alkylnee tylphin ester is less than 5% by weight, organic acid will precipitate, and if it exceeds 1% by weight, the permeation rate will be slow and degreasing will be insufficient, and the sulfide removal effect will be weakened.
なお、第２表における尉硫化性付与効果の評価は、第２
表で試験した試験片及びこれらと同組成の銀合金の試験
片を夫々０．１％硫化ナトリウム水溶液に５時間浸漬し
て表面の硫化度合いを目視にて比較して行なった。この
結果を表３に示す。In addition, the evaluation of the effect of imparting low sulfurization properties in Table 2 is based on Table 2.
The test pieces tested in the table and the silver alloy test pieces having the same composition were each immersed in a 0.1% sodium sulfide aqueous solution for 5 hours, and the degree of sulfidation on the surface was visually compared. The results are shown in Table 3.
耐硫化性が向上したものを優、同一を良、低下したもの
を不良とした。Those with improved sulfurization resistance were rated as excellent, those with the same sulfidation resistance were rated good, and those with decreased sulfidation resistance were rated poor.
（以下余白）
第３表
耐硫化性試験結果
（合金成分中の数字は重量％）
Ａｇ−７，５Ｘは、Ａｇ・７．５（Ｉｎ−Ａｌ−Ｃｕ−
Ｇａ−２ｎ−３ｕ）（発明の効果）
以上のように、本発明においては、クエン酸。(Margins below) Table 3 Sulfidation resistance test results (numbers in alloy components are weight%) Ag-7.5X is Ag-7.5 (In-Al-Cu-
Ga-2n-3u) (Effects of the Invention) As described above, in the present invention, citric acid.
シュウ酸等の二種以上の低級有機酸を２〜２０重量％、
炭素数１２〜１８の高級脂肪族アミンを０゜５〜５重量
％、高級アルコールとポリオキシエチレンからなるアル
キルエーテルのリン酸エステル塩であるアルキルエーテ
ルリン酸エステル塩を５〜２５重量％含有させて銀合金
の硫化物除去剤を構成したため、銀合金の表面に生成し
た黒色硫化物を、機械的研磨を伴わず、特別な前処理を
必要とせずに薬品処理のみによって、安全、簡単かつ効
果的に、しかも経済的に除去でき、さらに除去後の耐硫
化性を向上させることもできるという効果を有する。2 to 20% by weight of two or more lower organic acids such as oxalic acid,
Contains 0.5 to 5% by weight of a higher aliphatic amine having 12 to 18 carbon atoms and 5 to 25% by weight of an alkyl ether phosphate salt, which is a phosphoric acid ester salt of an alkyl ether consisting of a higher alcohol and polyoxyethylene. Because the silver alloy sulfide remover is composed of a silver alloy sulfide remover, black sulfide generated on the surface of the silver alloy can be removed safely, easily, and effectively by chemical treatment alone, without mechanical polishing or special pretreatment. It has the effect that it can be removed economically and economically, and that the sulfidation resistance after removal can also be improved.
Claims (3)
２〜２０重量％、炭素数１２〜１８の高級脂肪族系アミ
ンを０．５〜５．０重量％、高級アルコールとポリオキ
シエチレンからなるアルキルエーテルのリン酸エステル
塩であるアルキルエーテルリン酸エステル塩を５〜２５
重量％含むことを特徴とする硫化物除去剤。(1) 2 to 20% by weight of two or more lower organic acids such as citric acid and oxalic acid, 0.5 to 5.0% by weight of higher aliphatic amines having 12 to 18 carbon atoms, higher alcohol and polyester. 5 to 25 alkyl ether phosphate salts, which are phosphoric acid ester salts of alkyl ethers made of oxyethylene.
% by weight of a sulfide remover.
、若しくはこれを布等に含浸させて拭き取ることにより
、銀合金の表面に生成した黒色硫化物を除去する方法。(2) A method of removing black sulfide generated on the surface of a silver alloy by immersing it in the sulfide removing agent according to claim (1) or impregnating a cloth or the like with the same and wiping it off.
、アルミニウム、錫、亜鉛、ガリウム、カドミウム等の
卑金属を二種以上含む組成であることを特徴とする銀合
金の表面に生成した黒色硫化物の除去方法。(3) The silver alloy according to claim (2) is formed on the surface of a silver alloy characterized by having a composition containing two or more types of base metals such as indium, aluminum, tin, zinc, gallium, and cadmium in silver. How to remove black sulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202490A JPH03229887A (en) | 1990-02-02 | 1990-02-02 | Removing agent for sulfide on silver alloy surface and method for removing sulfide using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2202490A JPH03229887A (en) | 1990-02-02 | 1990-02-02 | Removing agent for sulfide on silver alloy surface and method for removing sulfide using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03229887A true JPH03229887A (en) | 1991-10-11 |
Family
ID=12071420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2202490A Pending JPH03229887A (en) | 1990-02-02 | 1990-02-02 | Removing agent for sulfide on silver alloy surface and method for removing sulfide using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03229887A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998033951A1 (en) * | 1997-01-31 | 1998-08-06 | Taylor James M | Composition and method for priming substrate materials |
| US6174561B1 (en) | 1998-01-30 | 2001-01-16 | James M. Taylor | Composition and method for priming substrate materials |
| US6555170B2 (en) | 1998-01-30 | 2003-04-29 | Duratech Industries, Inc. | Pre-plate treating system |
| WO2006000597A1 (en) * | 2004-06-08 | 2006-01-05 | Melchor Daumal Castellon | Pulley device for vehicle window regulators |
-
1990
- 1990-02-02 JP JP2202490A patent/JPH03229887A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998033951A1 (en) * | 1997-01-31 | 1998-08-06 | Taylor James M | Composition and method for priming substrate materials |
| JP2001511218A (en) * | 1997-01-31 | 2001-08-07 | テイラー，ジェームズ、エム． | Compositions and methods for priming substrate materials |
| US6174561B1 (en) | 1998-01-30 | 2001-01-16 | James M. Taylor | Composition and method for priming substrate materials |
| US6555170B2 (en) | 1998-01-30 | 2003-04-29 | Duratech Industries, Inc. | Pre-plate treating system |
| WO2006000597A1 (en) * | 2004-06-08 | 2006-01-05 | Melchor Daumal Castellon | Pulley device for vehicle window regulators |
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