Surface roughening agent for aluminum, and surface roughening method using said surface roughening agent
US9493878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2010 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Nov 8, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F1/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided are a surface roughening agent for aluminum and a surface roughening method using said surface roughening agent wherein it is possible to easily reduce costs for the surface roughening step and to improve the adhesiveness between aluminum and a resin. Specifically, provided is a surface roughening agent for aluminum comprising an aqueous solution containing: an alkali source, an amphoteric metal ion, a nitrate ion, and a thio compound. Moreover, provided is a surface roughening method for aluminum which involves a surface roughening step in which the surface of aluminum is treated with the aforementioned surface roughening agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.