Lubricating oil compositions
US6232277A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2475
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
There are disclosed fuel compositions containing an additive formed by admixture of (i) at least one ethylene polymer, (ii) the product of the condensation reaction between an aldehyde or ketone or reactive equivalent thereof and at least one compound comprising one or more aromatic moieties having at least one substituent of the formula XR.sup.1 and one further substituent R.sup.2 wherein X is oxygen of sulfur, R.sup.1 is hydrogen or a moiety bearing at least one hydrocarbyl group and R.sup.2 represents a hydrocarbyl group and (iii) at least one oil soluble polar nitrogen compound different from the condensation product and having one or more substituents of the formula NR.sup.13 where R.sup.13 represents a hydrocarbyl group containing 8 to 40 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.