ESTER-BASED COMPOUND HAVING LOW TRACTION COEFFICIENT, LUBE BASE OIL COMPRISING SAME COMPOUND, AND LUBRICANT COMPOSITION COMPRISING SAME COMPOUND
Proposed is a compound represented by Formula 1, where R 1 is an alkyl group having 9 to 30 carbon atoms, an alkenyl group having 9 to 30 carbon atoms, or an alkynyl group having 9 to 30 carbon atoms, R 2 is hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkynyl group having 2 to 10 carbon atoms, and R 3 to R 5 are each independently hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkynyl group having 2 to 10 carbon atoms. Alternatively, at least two of R 3 to R 5 are bonded together to form a hydrocarbon ring having 5 or 6 carbon atoms. In addition, proposed are a lube base oil and a lubricant composition comprising the compound.
1 . A compound represented by Formula 1,
wherein R 1 is an alkyl group having 9 to 30 carbon atoms, an alkenyl group having 9 to 30 carbon atoms, or an alkynyl group having 9 to 30 carbon atoms,
R 2 is hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkynyl group having 2 to 10 carbon atoms, and
R 3 to R 5 are each independently hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or an alkynyl group having 2 to 10 carbon atoms, or at least two of R 3 to R 5 are bonded together to form a hydrocarbon ring having 5 or 6 carbon atoms.
2 . The compound of claim 1 , wherein R 1 is the alkyl group having 9 to 30 carbon atoms,
R 2 is hydrogen or the alkyl group having 1 to 10 carbon atoms, and
at least two of R 3 to R 5 are bonded together to form the hydrocarbon ring having 5 or 6 carbon atoms.
3 . The compound of claim 1 , wherein the compound is represented by Formula 2 when R 3 and R 5 in the compound of Formula 1 are bonded together to form a hydrocarbon ring having 5 carbon atoms,
wherein R 1 is the alkyl group having 9 to 30 carbon atoms, the alkenyl group having 9 to 30 carbon atoms, or the alkynyl group having 9 to 30 carbon atoms,
R 2 is hydrogen, the alkyl group having 1 to 10 carbon atoms, the alkenyl group having 2 to 10 carbon atoms, or the alkynyl group having 2 to 10 carbon atoms, and
R 4 is hydrogen, the alkyl group having 1 to 10 carbon atoms, the alkenyl group having 2 to 10 carbon atoms, or the alkynyl group having 2 to 10 carbon atoms.
4 . The compound of claim 3 , wherein R 1 is the alkyl group having 9 to 30 carbon atoms,
R 2 is hydrogen or the alkyl group having 1 to 10 carbon atoms, and
R 4 is hydrogen or the alkyl group having 1 to 10 carbon atoms.
5 . A lube base oil comprising the compound of claim 1 .
6 . The lube base oil of claim 5 , wherein the lube base oil has a traction coefficient of 0.04 or less when being measured under conditions of a load of 38 N, a temperature of 100° C., a speed of 1000 mm/s, and a slide-to-roll ratio (SRR) of 100%.
7 . The lube base oil of claim 5 , wherein the lube base oil has a flash point of 200° C. or higher.
8 . The lube base oil of claim 5 , wherein the amount of the compound in the lube base oil is at least 50 wt % based on the total weight of the lube base oil.
9 . A lubricant composition comprising the compound of claim 1 .
10 . The lubricant composition of claim 9 , the lubricant composition comprises greater than 0 wt % and less than 50 wt % of the compound based on the total weight of the lubricant composition.