High alkalinity metallic detergent-dispersant additives for lubricating oils and method of making same
US4470916A · kind A · utility
7Cited by
17References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1983 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Jun 22, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2219/089
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
High alkalinity metallic lubricating oil additives and a method of making them are disclosed. A magnesium alkylbenzenesulfonate and a sulfurized calcium alkylphenate are carbonated in the presence of an oil, magnesium oxide, a glycol, and an amine. The glycol, water, and sediment are then removed from the resulting medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.