Selected heteroaromatic nitrogen compounds as antioxidant/metal deactivators/electrical insulators in lubricating oils and petroleum liquid fuels
US4367152A · kind A · utility
3Cited by
14References
11Claims
0Family size
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Key dates
| Filing date | Jul 2, 1981 |
| Grant date | Jan 4, 1983 |
| Priority date | — |
| Expiry date | Jul 2, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/17
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydrocarbon composition such as a lubricating or specialty oil containing a selected heteroaromatic nitrogen compound as an antioxidant/metal deactivator/electrical insulator having the following general formula: ##STR1## wherein each X is C or N with at least one X being N; Y is C or N; R is H or CH.sub.2 NR"'.sub.2 where each R" is H or alkyl of 1 to 20 carbons; R' is H, SR"' OR "' or NR"'.sub.2 with each R"' being H or alkyl of 1 to 20 carbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.