The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 2021
Filed:
Jan. 05, 2018
Mitsui Chemicals, Inc., Tokyo, JP;
Shota Abe, Chiba, JP;
Terufumi Suzuki, Ichihara, JP;
MITSUI CHEMICALS, INC., Tokyo, JP;
Abstract
A lubricant oil composition for automotive gears includes a lubricant base oil including a mineral oil having a kinematic viscosity at 100° C. of 2.0 to 6.5 mm/s, a viscosity index of not less than 105 and a pour point of not more than −10° C., and/or a synthetic oil having a kinematic viscosity at 100° C. of 1.0 to 6.5 mm/s, a viscosity index of not less than 120 and a pour point of not more than −30° C.; and an ethylene/α-olefin copolymer having an ethylene content of 55 to 85 mol %, a kinematic viscosity at 100° C. of 10 to 200 mm/s, a molecular weight distribution of not more than 2.2, and a melting point in the range of −30° C. to −60° C. The lubricant oil composition for automotive gears has a kinematic viscosity at 100° C. of 4.0 to 9.0 mm/s.