Cleaning composition comprising inorganic acids, an oxidant, and a cationic surfactant
US6489281B1 · kind B1 · utility
24Cited by
34References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2000 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Oct 11, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cleaning composition is provided according to the invention. The cleaning composition includes a product of mixing an acid component, a source of phosphoric acid component, and an oxidant component. The molar ratio of oxidant component to phosphoric acid component is preferably between about 2:1 and about 1:2, and the molar ratio of oxidant component to acid component is preferably between about 1:3 and about 1:5. A method of cleaning an aluminum surface is provided. The method includes a step of applying the cleaning composition to an aluminum surface, and rinsing the cleaning composition from the aluminum surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.