Two-cycle fuel compositions containing amino phenols
US4425138A · kind A · utility
13Cited by
13References
67Claims
0Family size
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Inventor
Key dates
| Filing date | Oct 13, 1981 |
| Grant date | Jan 10, 1984 |
| Priority date | — |
| Expiry date | Oct 13, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Lubricating oils containing at least one amino phenol of the general formula ##STR1## wherein R is a substantially saturated, hydrocarbon-based group of at least about 10 aliphatic carbon atoms, a, b and c are, for example, each 1, 2 or 3, and Ar is an aromatic moiety such as a benzene nucleus, naphthalene nucleus or linked benzene nuclei, are effective in lubricating two-cycle internal combustion engines. Typically such amino phenols for this use are formed by nitration and reduction of alkyl phenols having an alkyl or alkenyl group of at least about 50 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.