Marine crankcase lubricant
US4358386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Aug 10, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/253
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A marine crankcase lubricating oil composition characterized by having a Total Base Number from about 3 to 10 comprising a mineral lubricating oil, an overbased calcium alkylphenolate, a zinc dihydrocarbyl dithiophosphate, an ethoxylated alkylphenol, and an N-alkylglycine derivative having the formula: ##STR1## in which R is a hydrocarbyl radical having from about 10 to 25 carbon atoms, R' represents hydrogen or an alkyl, hydroxyalkyl or an aminoalkyl radical having from 1 to 5 carbon atoms and R" represents an alkyl or hydroxyalkyl radical having from 1 to 5 carbon atoms or a --CH.sub.2 --CH.sub.2 --NH).sub.x H radical in which x has a value from 1 to 3, or ##STR2## in which X represents an oxygen atom or a divalent N-R' radical and R and R' have the values noted above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.