Overbased metal detergents
US6569821B1 · kind B1 · utility
4Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2000 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jan 3, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An overbased metal detergent having friction-modifying properties comprises colloidal inorganic base particles stably dispersed in an oil of lubricating viscosity. The colloidal particles constitute from 15 to 40 mass % of the detergent, and a stabilizing system constitutes from 20 to 45 mass % thereof, the balance being the oil of lubricating viscosity. The stabilizing system is the mixture obtained by combining an oil-soluble detergent component and from 25 to 75 mass % of an aliphatic amide having from 10 to 30 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.