Anti-aging periodic variable reaction black chromium coating film and forming method thereof
US10745794B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Dec 18, 2018 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2451/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The disclosure provides an anti-aging periodic variable reaction black chromium coating film, sequentially comprising: an aluminum alloy matrix, a silane conversion film, a high-gloss organic resin coating, a metal compound and metal element periodic variable content alloy coating film, and a transparent resin coating. The disclosure simultaneously provides a method for forming the anti-aging periodic variable reaction black chromium coating film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.