Overbased metal salts useful as additives for fuels and lubricants
US6310011A · kind A · utility
23Cited by
20References
42Claims
0Family size
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Key dates
| Filing date | Oct 17, 1994 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Oct 17, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Lubricants containing metal salts of hydrocarbyl-substituted carboxyalkylene-linked phenols, dihydrocarbyl esters of alkylene dicarboxylic acids, the alkylene group being substituted with a hydroxy group and an additional carboxylic acid group, or alkylene-linked polyaromatic molecules, the aromatic moieties whereof comprise at least one hydrocarbyl-substituted phenol and at least one carboxy phenol, where the hydrocarbyl groups are of sufficient length to provide oil solubility to the salt, exhibit good asphaltene suspension for marine diesel applications. Preferably the salts are overbased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.