Double-dip Pd/Sn crosslinker
US6541080B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Sep 19, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C18/24
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process for the direct metallizing of the surface of a plastic object. The surface of the plastic object is roughened by pickling. The surface is activated with the aid of a colloidal or ionogenic aqueous solution of a first precious metal, which colloidal or ionogenic aqueous solution also contains a second base metal. This forms an activation coat on the surface containing the first precious and the second base metals. Electron conductivity of the activation coat is provided with the aid of a treatment solution, with which the second base metal is at least partially dissolved out of the activation coat and an electron conducting substance is adsorb in the activation coat. Then the electron-conductive activation coat is metallized. Before the electron conducting activation coat is metallized, the sequence of steps “activation of the surface and establishment of electronic conductivity” is repeated at least once.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.