Processes and compositions for improving corrosion performance of zirconium oxide pretreated zinc surfaces
US9573162B2 · kind B2 · utility
0Cited by
8References
16Claims
0Family size
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Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Mar 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12611
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of improving corrosion resistance of a metal substrate comprising a zinc surface coated with zirconium oxide conversion coating by, prior to conversion coating, contacting the zinc surface with a composition comprising:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.