Overbased detergent additives
US6642190B2 · kind B2 · utility
3Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jan 31, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/253
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Oil-soluble overbased salicylate-phenate detergent additives comprising a complex in which the basic material of the detergent is stabilized by both salicylate and phenate surfactants. The mass % of the salicylate, as a percentage of the total surfactant mass, is at least 50, preferably greater than 50, provided that, when said mass % is less than 60, the TBN: mass % surfactant ratio of the detergent is 10 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.