Surface-treated steel plate
US8822037B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | May 27, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | May 27, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12972
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A surface-treated steel plate obtained by forming, on at least one surface of the steel plate by cathodic electrolysis, a surface-treating film which contains a mixed oxide of an oxide of Fe and at least one of an oxide of Zr or an oxide of Ti, and a polycarboxylic acid, the amount of Zr or Ti, or the total amount of Zr and Ti if both of them are present, being from 3 to 300 mg/m2 and the amount of C being from 0.1 to 5.0 mg/m2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.