Composition and method for cleaning and neutralizing a surface
US8097575B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Nov 14, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and new use of an aqueous composition including a surfactant and a buffering agent, wherein the new use and method include the steps of applying the composition to a surface with an acidic finish, etching the surface, and removing the aqueous composition. The removal may be by evaporation. A new finish may be applied to the surface. Methods are disclosed for the cleaning and neutralizing of an existing finish to allow for the application of a new finish. Also disclosed are compositions for the cleaning and neutralizing of an existing finish without complete removal of the existing finish. The compositions include a buffering agent configured to neutralize the existing finish, and a surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.