Acid cleaning/deoxidizing aluminum and titanium without substantial etching
US6001186A · kind A · utility
8Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Jun 22, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A chromium and ferricyanide free aqueous cleaner/deoxidizer for aluminum and titanium and their alloys contains strong acid, fluoride ions, aryl quaternary ammonium ions, and di-anionic functional substituted compounds containing at least two aryl groups per molecule. Excellent cleaning and deoxidizing with substantially no etching is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.