US2012322704A1PendingUtilityA1
Lubricant composition
Est. expiryFeb 25, 2030(~3.6 yrs left)· nominal 20-yr term from priority
Inventors:Yoshitaka Tamoto
C08F 4/65927C08F 110/14C10M 2205/0285C10M 111/04C10N 2020/02C10N 2030/02C10N 2030/06C10N 2040/04C10M 2205/0225C10M 2207/2825C08F 4/65912C10N 2030/54C10N 2040/044C10N 2030/56C10M 2203/1025C10N 2070/00C10M 169/04
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Claims
Abstract
A lubricating oil composition of the invention contains: (a) a base oil for a lubricating oil having a kinematic viscosity at 100 degrees C. in a range of 2 mm 2 /s to 10 mm 2 /s; and (b) a poly-alpha-olefin having a kinematic viscosity at 100 degrees C. in a range of 15 mm 2 /s to 300 mm 2 /s, the poly-alpha-olefin (b) being produced using a metallocene catalyst, a content of the poly-alpha-olefin (b) being 20 mass % or more based on a total amount of the composition.
Claims
exact text as granted — not AI-modified1 . A lubricating oil composition, comprising:
(a) a base oil (a) having a kinematic viscosity at 100 degrees C. in a range of 2 mm 2 /s to 10 mm 2 /s; and (b) a poly-alpha-olefin (b) having a kinematic viscosity at 100 degrees C. in a range of 15 mm 2 /s to 300 mm 2 /s, said poly-alpha-olefin (b) produced in the presence of a metallocene catalyst, said composition having a content of the poly-alpha-olefin (b) of 20 mass % or more based on a total amount of the composition.
2 . The lubricating oil composition according to claim 1 , wherein the composition has a kinematic viscosity at 100 degrees C. in a range of 5 mm 2 /s to 20 mm 2 /s.
3 . The lubricating oil composition according to claim 1 , wherein the poly-alpha-olefin (b) has a kinematic viscosity at 100 degrees C. in a range of 40 mm 2 /s to 150 mm 2 /s.
4 . The lubricating oil composition according to claim 1 , wherein the composition is suitable for a gear device in a manual transmission or a final reduction gear in automobiles, or for a step-up gear or a reducer in industrial machines.
5 . The lubricating oil composition according to claim 2 , wherein the poly-alpha-olefin (b) has a kinematic viscosity at 100 degrees C. in a range of 40 mm 2 /s to 150 mm 2 /s.
6 . The lubricating oil composition according to claim 2 , wherein the composition is suitable for a gear device in a manual transmission or a final reduction gear in automobiles, or for a step-up gear or a reducer in industrial machines.
7 . The lubricating oil composition according to claim 3 , wherein the composition is suitable for a gear device in a manual transmission or a final reduction gear in automobiles, or for a step-up gear or a reducer in industrial machines.Join the waitlist — get patent alerts
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