Non-foaming detergent-dispersant additives for lubricating oils and process for making such additives
US4764295A · kind A · utility
22Cited by
5References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1985 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | May 20, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are detergent-dispersant additives for lubricating oils that are made by contacting an alkylarylsulfonic acid with an alkaline earth base in the presence of an alcohol having a boiling point in excess of 80.degree. C., water, chloride ions and preferably a C.sub.1 -C.sub.4 carboxylic acid. The products may be made more basic by carbonation. The disclosed additives, when not carbonated, have a TBN up to about 40 and, when carbonated, have a TBN of up to about 100.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.