Methods for coating metals on hydrophobic surfaces
US9617643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2013 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C18/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of plating a metal on a hydrophobic polymer, especially in the shape of small particles, involves: (a) contacting a surface of hydrophobic polymer substrate with a polycation such as poly(allylamine hydrochloride) to create a treated surface; (b) contacting the treated surface with a catalyst; and then (c) immersing the surface in a electroless metal plating bath to create a coating of metal on the surface. Metals include copper, silver, gold, nickel and cobalt. Catalysts are selected from compounds containing palladium, platinum, tin, copper, or nickel salts. Damaging surface treatments such as etching by plasma or acid are avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.