Coated metal sheet for automobile excellent in rust resistance in low temperature running environments
US10913860B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Apr 17, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C28/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a coated metal sheet for automobile comprising: a metal sheet; and a coating film (α) present on at least one surface of the metal sheet. The coating film (α) contains an organic resin (A), an electrically conductive pigments (B), and anti-corrosion pigments (C), and a Martens micro-hardness HM at −20° C. of the surface of the coating film (α) is 10 to 200 (mg/mm2) at 20 points or more when measured at 100 points, and a Martens micro-hardness HM at 40° C. of the surface of the coating film (α) is 200 to 200,000 (mg/mm2) at 5 points or more when measured at 100 points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.