Aqueous metal cleaner
US5650385A · kind A · utility
19Cited by
12References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1996 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Mar 4, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A metal cleaning composition useful in aqueous solution comprises an alkalinity providing agent and a combination of surfactants comprising an ethoxylated thiol surfactant and a nitrogen-containing surfactant which reduces the odor of the thiol-containing surfactant. The aqueous cleaning solutions of this invention are particularly useful in metal parts washers typically placed in garages, service stations and the like in which the cleaning solution can be filtered and reused in the parts washer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.