Organometallic adhesion promoters for paint-over-chrome plated polymers
US9506159B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2014 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Apr 22, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D5/56
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided are robust paint coating systems on metal-coated plastic substrates and processes for forming such material systems as decorative components. An organometallic adhesion promoter is applied to a metal-coated plastic substrate. The metal coating comprises chromium (Cr), nickel (Ni) or combinations thereof. The organometallic adhesion promoter comprises (i) a transition metal selected from the group consisting of: zirconium (Zr), titanium (Ti), chromium (Cr), and combinations thereof, (ii) a first ligand complexed to the transition metal comprising an organofunctional group, and (iii) a second ligand complexed to the transition metal having a hydrolysable functional group. Then, one or more organic paint precursor materials are applied thereon. The hydrolysable functional group is capable of reacting with the metal-coated substrate and the organofunctional group with at least a portion of the organic paint precursor material to form a robust polymeric paint coating having a robust bond with the metal-coated plastic substrate below.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.