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US 10,093,879 B2Granted
Lubricant composition comprising hindered cyclic amines
AssigneeBASF SE
InventorsKevin J. Desantis, Michael Hoey, Bjoern Ludolph, Matthias Kiefer
Life of this patent
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Abstract
A lubricant composition includes a base oil and a cyclic amine compound. A method of lubricating a system including a fluoropolymer seal with the lubricant composition is also provided. An additive concentrate for a lubricant composition is also provided. The cyclic amine compound is useful for adjusting the total base number of a lubricant composition. The lubricant composition is compatible with fluoropolymer seals.
Claims16
A lubricant composition comprising:
- a base oil;
- and
- a cyclic amine compound having a formula (I):
- where each R1 is independently selected from hydrogen, and an alkyl group, an alcohol group, an amide group, an ether group, and an ester group, each having from 1 to 17 carbon atoms, with at least one of R1 being an independently selected alkyl group in formula (I),
- where R2 is an amide group having from 1 to 17 carbon atoms;
- and
- where R3 is selected from hydrogen and an alkyl group having from 1 to 17 carbon atoms.
4 more elements
An additive concentrate for a lubricant composition comprising:
- an anti-wear additive comprising sulfur and/or phosphorus;
- and
- a cyclic amine compound having a formula (I):
- where each R1 is independently selected from hydrogen, and an alkyl group, an alcohol group, an amide group, an ether group, and an ester group, each having from 1 to 17 carbon atoms, with at least one of R1 being an independently selected alkyl group in formula (I),
- where R2 is an amide group having from 1 to 17 carbon atoms;
- and
- where R3 is selected from hydrogen and an alkyl group having from 1 to 17 carbon atoms.
4 more elements
Dependencies are inferred from the claim text.