Metal treatment coating compositions, methods of treating metals therewith and coated metals prepared using the same
US10422042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2009 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C22/34
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Methods comprising: (a) providing a coating composition comprising a fluoroacid compound of the general formula (I): XpMqFrOs (I) wherein each of q and r independently represents an integer of 1 to 10; each of p and s independently represents an integer from 0 to 10; X represents at least one cation selected from the group consisting of hydrogen, ammonium, alkaline earth metals and alkali metals; and M represents at least one element selected from the group consisting of Ti, Zr, Hf, Si, Sn, Al, Ge, and B; (b) contacting a metal substrate with the coating composition; and (c) adding to the coating composition a component selected from the group consisting of fluorine-free compounds of an element M, Group 2 metal compounds, Group 12 metal compounds, Group 13 compounds, Group 14 compounds, and combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.