Lubricant base oil
AssigneeIdemitsu Kosan Co., Ltd.
InventorsKazushige Matsubara, Hiroyuki Tatsumi
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Abstract
A lubricant base oil having a natural origin content (ISO 16128) of 100%, may contain a monoester compound having one or more branched structures and 18 or more carbon atoms. The monoester compound may a compound of formula (1): wherein R1 and R2 are each independently a hydrocarbon group, at least one of R1 and R2 is a branched hydrocarbon group, and a total number of carbon atoms of R1 and R2 is 17 or more. In the compound of formula (1), R1 may be an alkyl group or alkenyl group having 8 or more carbon atoms, R2 may be an alkyl group or alkenyl group having 5 or more carbon atoms, and at least one of R1 and R2 may be a branched alkyl group or a branched alkenyl group
Claims18
A lubricant base oil, comprising:
- a monoester compound having comprising a branched structure and carbon atoms in a range of from 24 to 26,
- wherein the lubricant base oil has a natural origin content (ISO 16128) of 100%,
- wherein the lubricant base oil has a kinematic viscosity at 40° C. in a range of from 7.0 to 20.0 mm2/s,
- wherein the monoester compound is of formula (1):
- wherein R1 and R2 are each independently a hydrocarbon group,
- wherein at least one of R1 and R2 is a branched hydrocarbon group,
- wherein a total number of carbon atoms of R1 and R2 is in a range of from 23 to 25.
- wherein a number of carbon atoms of R1 is 24 or less, and
- wherein a number of carbon atoms of R2 is 20 or less.
Dependencies are inferred from the claim text.