Morpholine derivatives as ashless TBN sources and lubricating oil compositions containing same
AssigneeInfineum International Limited
InventorsJacob Emert, Jie Cheng, Jun Hua, Tushar K. Bera, Mark L. Bushey, Jesse D. Dambacher
Life of this patent
Estimating the term…
Abstract
Morpholine derivatives useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials, and lubricating oil compositions containing such compounds.
Claims28
A lubricating oil composition comprising a major amount of oil of lubricating viscosity and a minor amount of one or more compounds of Formula (I):
- wherein R is a hydrocarbon or substituted hydrocarbon group comprising at least 90% of aliphatic and/or olefinic carbon atoms, R has a number average molecular weight (Mn) of from about 100 to about 800 per n (Mn of 100n to 800n), and R comprises at least 8n aliphatic or cycloaliphatic carbon atoms;
- R′ is H or an alkyl group having 1 to about 12 carbon atoms;
- X is —O—, -NR″-, or N—C(O)R″, wherein R″ is H or an alkyl group having 1 to about 12 carbon atoms;
- and n is 1 to 25 with the proviso that when n is 1, R′ is not H.
Compounds of Formula (I):
- wherein R is a hydrocarbon or substituted hydrocarbon group comprising at least 90% of aliphatic and/or olefinic carbon atoms, R has a number average molecular weight (Mn) of from about 100 to about 800 per n (Mn of 100n to 800n), and R comprises at least 8n aliphatic or cycloaliphatic carbon atoms;
- R′ is H or an alkyl group having 1 to about 12 carbon atoms;
- X is —O—, -NR″-, or N—C(O)R″, wherein R″ is H or an alkyl group having 1 to about 12 carbon atoms;
- and n is 1 to 25 with the proviso that when n is 1, R′ is not H.
A method of increasing the TBN of a lubricating oil composition without concurrently increasing the SASH content, which method comprises adding to said lubricating oil composition one or more compounds of Formula (I):
- wherein R is a hydrocarbon or substituted hydrocarbon group comprising at least 90% of aliphatic and/or olefinic carbon atoms, R has a number average molecular weight (Mn) of from about 100 to about 800 per n (Mn of 100n to 800n), and R comprises at least 8n aliphatic or cycloaliphatic carbon atoms;
- R′ is H or an alkyl group having 1 to about 12 carbon atoms;
- X is —O—, -NR″-, or N—C(O)R″, wherein R″ is H or an alkyl group having 1 to about 12 carbon atoms;
- and n is 1 to 25 with the proviso that when n is 1, R′ is not H.
Dependencies are inferred from the claim text.