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1. 发明申请

US20210317591A1 TIN ALLOY ELECTROPLATING BATH AND PLATING METHOD USING SAME 有权
公开(公告)号：US20210317591A1
公开(公告)日：2021-10-14
申请号：US17264405
申请日：2019-07-12
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Yutaka MORII , Go NAGATA , Satoshi YUASA
IPC分类号： C25D3/60 , C25D5/18
摘要： A tin alloy electroplating bath, wherein the tin alloy electroplating bath includes (A) a soluble tin salt, (B) a soluble nickel salt and/or a soluble cobalt salt, (C) an oxycarboxylic acid or a salt thereof, (D) a nitrogen-containing heterocyclic unsaturated compound, and (E) a surfactant, and the pH of the tin alloy electroplating bath is 3 to 7.

2. 发明授权

US10538854B2 Copper-nickel alloy electroplating device 有权
公开(公告)号：US10538854B2
公开(公告)日：2020-01-21
申请号：US15519474
申请日：2015-06-25
申请人： Dipsol Chemicals Co., LTD.
发明人： Hitoshi Sakurai , Kazunori Ono , Akira Hashimoto , Satoshi Yuasa
IPC分类号： C25D21/14 , C25D3/58 , C22C9/06 , C22C19/00 , C22C19/03 , C25D3/56 , C25D17/00 , C25D21/12 , C25D21/06 , C25D21/10 , C25D5/08
摘要： Provided is a copper-nickel alloy electroplating apparatus which is capable of stably forming a copper-nickel plated coating on a workpiece with a uniform composition and which enables a plating bath to be used for a long period. The present invention provides a copper-nickel alloy electroplating apparatus (1), comprising: a cathode chamber (4) in which a workpiece (5) is to be placed; an anode chamber (6); an anode (7) placed in the anode chamber; an electrically conductive diaphragm (14) placed to separate the cathode chamber and the anode chamber from each other; a cathode chamber oxidation-reduction potential adjusting tank (8) for adjusting the oxidation-reduction potential of a plating liquid in the cathode chamber; an anode chamber oxidation-reduction potential adjusting tank (10) for adjusting the oxidation-reduction potential of a plating liquid in the anode chamber; and a power supply unit (36) that provides an electric current to flow between the workpiece and the anode.

3. 发明申请

US20170241040A1 COPPER-NICKEL ALLOY ELECTROPLATING DEVICE 审中-公开
公开(公告)号：US20170241040A1
公开(公告)日：2017-08-24
申请号：US15519474
申请日：2015-06-25
申请人： Dipsol Chemicals Co., LTD.
发明人： Hitoshi SAKURAI , Kazunori ONO , Akira HASHIMOTO , Satoshi YUASA
IPC分类号： C25D21/14 , C25D3/58 , C22C19/00 , C22C9/06 , C22C19/03 , C25D3/56 , C25D17/00
摘要： Provided is a copper-nickel alloy electroplating apparatus which is capable of stably forming a copper-nickel plated coating on a workpiece with a uniform composition and which enables a plating bath to be used for a long period. The present invention provides a copper-nickel alloy electroplating apparatus (1), comprising: a cathode chamber (4) in which a workpiece (5) is to be placed; an anode chamber (6); an anode (7) placed in the anode chamber; an electrically conductive diaphragm (14) placed to separate the cathode chamber and the anode chamber from each other; a cathode chamber oxidation-reduction potential adjusting tank (8) for adjusting the oxidation-reduction potential of a plating liquid in the cathode chamber; an anode chamber oxidation-reduction potential adjusting tank (10) for adjusting the oxidation-reduction potential of a plating liquid in the anode chamber; and a power supply unit (36) that provides an electric current to flow between the workpiece and the anode.

4. 发明申请

US20150135988A1 TRIVALENT CHROMIUM-CONVERSION PROCESSING SOLUTION CONTAINING ALUMINUM-MODIFIED COLLOIDAL SILICA 有权
标题翻译：包含铝改性胶体二氧化硅的TRIVALENT CHROMIUM转换处理解决方案
公开(公告)号：US20150135988A1
公开(公告)日：2015-05-21
申请号：US14403857
申请日：2013-06-04
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Shinji Yamaguchi
IPC分类号： C09D5/08 , C08K3/08 , C08K3/36
CPC分类号： C09D5/08 , C01B33/18 , C08K3/08 , C08K3/36 , C23C22/53 , C23C2222/10
摘要： The present invention provides a trivalent chromium-conversion processing solution characterized by containing aluminum-modified colloidal silica.
摘要翻译：本发明提供三价铬转化处理溶液，其特征在于含有铝改性胶体二氧化硅。

5. 发明申请

US20030121570A1 Processing solution for forming hexavalent chromium free and corrosion resistant conversion film on zinc or zinc alloy plating layers, hexavalent chromium free and corrosion resistant conversion film and method for forming the same 有权
标题翻译：用于在锌或锌合金镀层上形成六价铬无腐蚀转化膜的加工溶液，六价铬无腐蚀转化膜及其形成方法
公开(公告)号：US20030121570A1
公开(公告)日：2003-07-03
申请号：US10085705
申请日：2002-03-01
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Katsuhide Oshima , Shigemi Tanaka , Manabu Inoue , Tomitaka Yamamoto
IPC分类号： C23C022/46
CPC分类号： C23C28/3225 , C23C22/46 , C23C22/47 , C23C28/00 , C23C28/02 , C23C28/321 , C23C28/345 , C23C28/3455 , C23C2222/10 , Y10T428/12583 , Y10T428/12799 , Y10T428/31678
摘要： A processing solution for forming a hexavalent chromium free, corrosion resistant trivalent chromate conversion film on zinc or zinc alloy plating layers comprises a silicon compound; trivalent chromium and oxalic acid in a molar ratio ranging from 0.5 to 1.5, wherein the trivalent chromium is present in the form of a water-soluble complex with oxalic acid; and cobalt ions, which form a hardly soluble metal salt with oxalic acid and are stably present in the processing solution without causing any precipitation, wherein the solution reacts with zinc when bringing it into contact with the zinc or zinc alloy plating to form a hexavalent chromium free, corrosion resistant, trivalent chromate conversion film containing zinc, chromium, cobalt, oxalic acid and silicon on the plating. This solution can provide a corrosion resistant trivalent chromate conversion film excellent in the corrosion resistance after heating.
摘要翻译：用于在锌或锌合金镀层上形成六价铬无腐蚀的三价铬酸盐转化膜的处理溶液包括硅化合物; 三价铬和草酸的摩尔比范围为0.5至1.5，其中三价铬以与草酸的水溶性络合物的形式存在; 和钴离子，其与草酸形成难溶的金属盐，并且稳定地存在于处理溶液中而不引起任何沉淀，其中溶液与锌在与锌或锌合金镀层接触时与锌反应形成六价铬在镀层上含有锌，铬，钴，草酸和硅的三价铬酸盐转化膜。该溶液可以提供加热后的耐腐蚀性优异的耐腐蚀性的三价铬酸盐转化膜。

6. 发明申请

US20230041195A1 ZINC-NICKEL-SILICA COMPOSITE PLATING BATH AND METHOD FOR PLATING USING SAID PLATING BATH 有权
公开(公告)号：US20230041195A1
公开(公告)日：2023-02-09
申请号：US17787858
申请日：2020-11-05
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Masayoshi MIKAMI , Manabu INOUE
IPC分类号： C25D3/56 , C25D15/02
摘要： The purpose of the present invention is to provide a zinc-nickel-silica composite plating bath that has been improved in terms of: covering power for articles having a complex shape; and corrosion resistance of a low current density portion where the film thickness is small. The present invention pertains to a zinc-nickel-silica composite plating bath, the plating bath having a pH of 3.5 to 6.9, and containing zinc ions, nickel ions, colloidal silica, and chloride ions. The colloidal silica is a cationic colloidal silica having on the surface thereon at least one species of metal cation selected from the group consisting of trivalent to heptavalent metal cations.

7. 发明申请

US20220396884A1 TRIVALENT CHROMIUM CHEMICAL CONVERSION TREATMENT LIQUID FOR ZINC OR ZINC ALLOY BASE AND CHEMICAL CONVERSION TREATMENT METHOD USING THE SAME 有权
公开(公告)号：US20220396884A1
公开(公告)日：2022-12-15
申请号：US17888926
申请日：2022-08-16
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Ryouji IWANAGA , Manabu INOUE , Tomitaka YAMAMOTO , Takahiro FUJINO
IPC分类号： C23C22/53 , C23C22/34
摘要： An object is to provide a trivalent chromium chemical conversion treatment liquid for a zinc or zinc alloy base capable of forming an environmentally-friendly chemical conversion coating with high corrosion resistance. The present invention provides a hexavalent chromium-free trivalent chromium chemical conversion treatment liquid for zinc or zinc alloy, the liquid comprising trivalent chromium ions, zirconium ions, nitrate ions, and chain colloidal silica, in which the pH of the treatment liquid is 2.5 to 5.0.

8. 发明授权

US11008659B2 Trivalent chromium chemical conversion liquid for zinc or zinc alloy bases and chemical conversion coating film 有权
公开(公告)号：US11008659B2
公开(公告)日：2021-05-18
申请号：US15539566
申请日：2015-12-25
申请人： Dipsol Chemicals Co., Ltd.
发明人： Ayumi Saito , Masatoshi Ishikawa , Takashi Koike
IPC分类号： C23C22/34 , C23C22/46 , C23C22/53 , C23C22/78
摘要： The present invention provides a chemical conversion liquid for zinc or zinc alloy bases, which contains 2-200 mmol/L of trivalent chromium ions, 1-300 mmol/L of zirconium ions and at least one component selected from among fluorine ions, a water-soluble carboxylic acid and a salt thereof, and which does not contain Co ions and hexavalent chromium ions.

9. 发明授权

US10316421B2 Copper-nickel alloy electroplating bath 有权
公开(公告)号：US10316421B2
公开(公告)日：2019-06-11
申请号：US15502197
申请日：2015-07-10
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Hitoshi Sakurai , Kazunori Ono , AKira Hashimoto , Satoshi Yuasa
IPC分类号： C25D3/56 , C25D3/58
摘要： The present invention provides a copper-nickel alloy electroplating bath which contains (a) a copper salt and a nickel salt, (b) a metal complexing agent, (c) a conductivity imparting agent, (d) a sulfur-containing organic compound and (e) a redox potential regulator.

10. 发明申请

US20150096461A1 METHOD FOR REGENERATING SOLUTION FOR NITRIC ACID ACTIVATION TREATMENT OF ZINC-PLATED METAL MEMBER SURFACE, AND REGENERATION TREATMENT APPARATUS USING THE SAME 有权
标题翻译：镀锌金属构件表面硝酸活化处理方法及其再生处理装置的再利用方法
公开(公告)号：US20150096461A1
公开(公告)日：2015-04-09
申请号：US14399486
申请日：2013-05-10
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Ryuta Kashio , Tomitaka Yamamoto
IPC分类号： C23C18/16 , C23C18/31
CPC分类号： C23C18/1617 , C02F1/54 , C02F2103/16 , C02F2209/06 , C23C18/1628 , C23C18/1646 , C23C18/1689 , C23C18/31 , C23C22/73 , C23C22/78 , C23C22/86 , C23C2222/10 , C23G1/36 , C25D21/16
摘要： Provided is a method for regenerating a nitric acid active treatment solution comprising: adding a zinc ion-aggregating agent to a nitric acid active treatment solution for a surface of a zinc-based material plated metal member, the nitric acid active treatment solution containing zinc ions, to thereby aggregate the zinc ions in the solution as an insoluble salt; and separating and removing the insoluble salt. This regeneration method is employed instead of methods conventionally and widely conducted in zinc-based plating on a steel material such as the exchange of the entire amount of the nitric acid active treatment solution after a lapse of a certain time, and is a method for regenerating a nitric acid active treatment solution, comprising: depositing and removing zinc ions which come to be mixed in the nitric acid active treatment solution during a zinc-based plating process on a steel material, so that the quality of a trivalent chromium chemical conversion treatment can be controlled at a constant level through simplification and cost reduction of a plating control step, and the waste nitric acid can be reduced as much as possible.
摘要翻译：本发明提供一种硝酸活性处理液的再生方法，其特征在于，在锌系电镀金属构件的表面的硝酸活性处理液中添加锌离子聚集剂，含有锌离子的硝酸活性处理溶液，从而将溶液中的锌离子聚集为不溶性盐; 并分离除去不溶性盐。采用这种再生方法代替常规的方法，并且在经过一定时间后，在全部量的硝酸活性处理溶液的交换等的钢材上进行锌基电镀，并且是再生的方法一种硝酸活性处理溶液，包括：在锌基电镀工艺中在钢材上沉积和除去在硝酸活性处理溶液中混合的锌离子，使得三价铬化学转化处理的质量可以通过电镀控制步骤的简单化和成本降低来控制在一定水平，并且可以尽可能地减少废硝酸。

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