Electrolytic treatment device for preparing plastic parts to be metallized and a method for etching plastic parts
US11603595B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Nov 20, 2020 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Nov 20, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25F7/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention refers to an electrolytic treatment device having an anodic compartment comprising a non-chromium (VI) etching solution to be treated and immersed therein an anode. The anodic compartment is separated by a membrane from a cathodic compartment comprising a cathodic solution comprising an inorganic acid, wherein the anode and the cathode are used comprising or consisting of a ternary or higher Pb alloy with Sn and at least one further metal selected from the group consisting of Sb, Ag, Co, Bi and combinations thereof. Moreover, a method for etching plastic parts is provided as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.