Metal brightener and surface cleaner
US7384902B2 · kind B2 · utility
5Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2004 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Jul 27, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a metal brightener and surface cleaner, which provides significant etching of aluminum and other metals, without detrimentally affecting other surfaces such as painted surfaces, glass, rubber and plastic. The inventive composition is especially suited for aluminum brightening for large vehicles, and may be utilized in an alkaline step of a multi-step vehicle wash. One of the exemplary compositions includes an alkali metal hydroxide; a polycarboxylic acid; an alkali metal salt of an organic acid; a first, amphoteric surfactant; a second, betaine surfactant; and a third, nonionic surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.