Surface treatment agent, surface treatment method, and surface treated metal material
US10752996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2016 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jan 21, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D13/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A surface treatment agent which is chromate-free and which can impart excellent coating adhesion and corrosion resistance to a metal material (in particular, a metal material treated with a phosphate), a surface treatment method that uses the surface treatment agent, and a surface treated metal material that is treated using the method are provided. The agent is for a metal material and contains a water-soluble ethylene glycol monoalkyl ether. It is preferable for this surface treatment agent to contain at least one type of metal compound selected from among a water-soluble vanadium compound, a water-soluble titanium compound, a water-soluble zirconium compound and a water-soluble hafnium compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.