- 专利标题: Aqueous electroplating bath and its use
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申请号: US17996642申请日: 2021-04-21
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公开(公告)号: US11781232B2公开(公告)日: 2023-10-10
- 发明人: Jussi Räisä , Arto Yli-Pentti
- 申请人: Savroc Ltd
- 申请人地址: FI Kuopio
- 专利权人: Savroc Ltd
- 当前专利权人: Savroc Ltd
- 当前专利权人地址: FI Kuopio
- 代理机构: DeLizio, Peacock, Lewin & Guerra, LLP
- 优先权: FI 205408 2020.04.23
- 国际申请: PCT/FI2021/050299 2021.04.21
- 国际公布: WO2021/214391A 2021.10.28
- 进入国家日期: 2022-10-20
- 主分类号: C25D3/06
- IPC分类号: C25D3/06 ; C25D3/10 ; C25D5/00 ; C25D5/14
摘要:
An aqueous electroplating bath is disclosed. The aqueous trivalent chromium bath comprises:—trivalent chromium cations in an amount of 0.12-0.276 mol/l,—ammonium ions in an amount of 4.0-6.0 mol/l, and—carboxylate ions in an amount of 2.0-7.4 mol/l, and the molar ratio of trivalent chromium cations to the carboxylate ions is 0.016-0.099, and the pH of the aqueous trivalent chromium bath is 2-6.
公开/授权文献
- US20230127810A1 AN AQUEOUS ELECTROPLATING BATH AND ITS USE 公开/授权日:2023-04-27
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