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公开(公告)号：US20240011178A1
公开(公告)日：2024-01-11
申请号：US18256691
申请日：2021-12-10
发明人： Berkem ÖZKAYA , Philipp WACHTER , Michael JONAT
摘要： The present invention relates to a black plated substrate comprising a base-substrate and deposited thereon a layer stack, wherein the layer stack comprises a black chromium plating layer comprising on its surface a conversion layer having a depth of 30 nm or more, characterized in that the conversion layer does not comprise metallic chromium or comprises metallic chromium only up to 2 at.-%, based on the element chromium and the total number of chromium atoms in the conversion layer.
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2.发明公开公开(公告)号：US20240026557A1
公开(公告)日：2024-01-25
申请号：US18256480
申请日：2021-12-10
发明人： Berkem ÖZKAYA , Philipp WACHTER , Michael JONAT
摘要： The present invention relates to a very specific electroplating bath for depositing a black chromium layer, and a respective method for electroplating such a layer. The electroplating bath comprises two specific groups of compounds defined as (D) and (E), present in a particularly defined molar ratio ranging from 0.9 to 2.65, based on (E):(D). The black chromium layer is excellently suited for decorative purposes.
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公开(公告)号：US20240271308A1
公开(公告)日：2024-08-15
申请号：US18568394
申请日：2022-06-07
发明人： Berkem ÖZKAYA , Michael JONAT , Philipp WACHTER , Philip HARTMANN
摘要： The present invention relates to a method for adjusting the brightness L* of an electroplated chromium layer, in particular of a dark electroplated chromium layer. The method includes an aqueous trivalent chromium electroplating bath comprising colloidal particles and/or agglomerates thereof and a step of fully or partially removing same with optionally adding colloidal particles.
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4.发明公开公开(公告)号：US20240271305A1
公开(公告)日：2024-08-15
申请号：US18568352
申请日：2022-06-08
摘要： The present invention relates to a method for electrodepositing a dark chromium layer on a substrate, a respective electroplating bath for depositing such a dark chromium layer, and a respective substrate comprising said dark chromium layer. The electroplating bath comprises colloidal particles containing the chemical element aluminum. The substrate comprising said dark chromium layer is primarily suited for decorative purposes.
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5.发明公开公开(公告)号：US20230193497A1
公开(公告)日：2023-06-22
申请号：US18000236
申请日：2021-12-10
发明人： Berkem ÖZKAYA , Philipp WACHTER , Michael JONAT
摘要： The present invention relates to a very specific electroplating bath for depositing a black chromium layer, a respective method thereof, and a respective substrate with said black chromium layer thereon. The substrate comprising said black chromium layer is excellently suited for decorative purposes.
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公开(公告)号：US20230193496A1
公开(公告)日：2023-06-22
申请号：US18000221
申请日：2021-12-10
发明人： Berkem ÖZKAYA , Philipp WACHTER
摘要： The present invention relates to a method for electrodepositing a dark chromium layer on a substrate and a substrate having at least one side fully covered with a dark chromium layer. The method includes utilizing an aqueous trivalent chromium electroplating bath comprising colloidal particles and a step of treating the substrate with a rinse liquid having a temperature of 50° C. or more.
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