Surface treatment agent for metal material, method of producing the same, metal material having a surface treatment coating, and method of producing the same
US10633518B2 · kind B2 · utility
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Key dates
| Filing date | Sep 27, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C2222/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A surface treatment agent for metal material may include a compound (A) that is obtained by modifying a silicic acid (a) with a hydrolysate (b) of an epoxy group-having silane coupling agent, a silicic acid (B) represented by M2O.SiO2 (wherein a mass ratio of M2O to SiO2 is 0.1 to 1 and M represents an alkali metal), and water. A mass ratio (B/A) of the silicic acid (B) to the compound (A) is 1.1 to 17.9.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.