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1. 发明公开

US20230304160A1 CHEMICAL CONVERSION TREATMENT SOLUTION, CHEMICAL CONVERSION TREATMENT METHOD IN WHICH SAME IS USED, AND CHEMICAL CONVERSION COATING 审中-公开
公开(公告)号：US20230304160A1
公开(公告)日：2023-09-28
申请号：US18016291
申请日：2021-07-19
申请人： DIPSOL CHEMICALS CO., LTD.
发明人： Ryuta KASHIO , Masatoshi ISHIKAWA , Tomitaka YAMAMOTO
IPC分类号： C23C22/53
CPC分类号： C23C22/53 , C23C2222/10
摘要： The present invention addresses the problem of providing a chemical conversion treatment solution that contains zirconium ions and that makes it possible to form a highly corrosion-resistant chemical conversion coating formed with consideration for the environment as well. The present invention provides a chemical conversion treatment solution that contains trivalent chromium ions, zirconium ions, aluminum ions, at least one type of carboxylic acid ions, and at least one type of silicon compound, the chemical conversion treatment solution being free of fluorine ions and fluorine compounds.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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。

7. 发明公开

US20240384110A1 TOP COATING AGENT AND SILVERY-WHITE FASTENING MEMBER HAVING PROTECTIVE FILM FORMED USING SAID TOP COATING AGENT 审中-公开
公开(公告)号：US20240384110A1
公开(公告)日：2024-11-21
申请号：US17913764
申请日：2021-04-01
申请人： DIPSOL CHEMICALS CO., LTD. , HONDA MOTOR CO., LTD.
发明人： Satoshi TAKAMATSU , Hiroshi HIRAYAMA , Mayuko SAKASHITA , Yoshiki ASAKA , Bo TONG , Shinsuke MOCHIZUKI , Atsushi MURAKAMI , Hiroyuki YOSHIDA
IPC分类号： C09D5/10 , C09D7/20 , C09D7/40 , C09D7/45 , C09D7/62 , C09D7/65 , C09D183/04
CPC分类号： C09D5/103 , C09D7/20 , C09D7/45 , C09D7/62 , C09D7/65 , C09D7/70 , C09D183/04
摘要： The present invention addresses the problem of providing: a top coating agent which forms a protective film demonstrating a beautiful silvery-white appearance, can be adjusted to suppress increases in the friction coefficient even when heat-treated at a high temperature, stabilizes sliding, is strong, and has excellent water resistance, corrosion resistance, and the like; and a fastening member having the protective film formed using said top coating agent. The present invention provides: a top coating agent that includes a polyoxyalkylene amine-based surfactant, a water-soluble modified organopolysiloxane, aluminum flake, and a diluent containing water; and a silvery-white fastening member having a protective film formed using said top coating agent.

8. 发明授权

US11643732B2 Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatment 有权
公开(公告)号：US11643732B2
公开(公告)日：2023-05-09
申请号：US15497776
申请日：2017-04-26
申请人： DIPSOL CHEMICALS CO., LTD
发明人： Manabu Inoue , Kimitaka Watanabe , Go Nagata , Motoi Nakatani , Keita Ishizu , Toshiki Inomata
IPC分类号： C23C22/30 , C23C22/77 , C23C22/53 , C23C22/83 , C23C22/46 , C23C22/40 , C23C22/47 , C23C28/00 , C09D5/08 , C23C22/27 , C23C22/33
CPC分类号： C23C22/77 , C09D5/08 , C23C22/27 , C23C22/30 , C23C22/33 , C23C22/40 , C23C22/46 , C23C22/47 , C23C22/53 , C23C22/83 , C23C28/3225 , C23C28/34 , C23C2222/10 , Y10T428/273
摘要： A trivalent-chromium chemical conversion coating from which substantially no hexavalent chromium is released. The trivalent-chromium chemical conversion coating is one formed on the surface of a zinc or zinc-alloy deposit. In a brine spray test, the chemical conversion coating has unsusceptibility to corrosion (time required for white-rust formation) of 96 hours or longer. The chemical conversion coating has a hexavalent-chromium concentration less than 0.01 μg/cm2 in terms of metal atom amount. The amount of hexavalent chromium released after 30-day standing in a thermo-hygrostatic chamber at a temperature of 80° C. and a humidity of 95% (amount of hexavalent chromium released when the coating is immersed in 100° C. water for 10 minutes) is smaller than 0.05 μg/cm2.

9. 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.

10. 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.

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