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:
Jan. 03, 2017
Filed:
Apr. 03, 2013
Mitsui Chemicals, Inc., Minato-ku, Tokyo, JP;
Ryousuke Kaneshige, Kisarazu, JP;
Shota Abe, Chiba, JP;
MITSUI CHEMICALS, INC., Tokyo, JP;
Abstract
A lubricating oil composition comprising (A) an ethylene/α-olefin copolymer satisfying all of the following requirements (A-1) to (A-3): (A-1) an ethylene structural unit content of 30 to 70% by mol, (A-2) a kinematic viscosity at 100° C. of 20 to 3000 mm/s, and (A-3) Mw/Mn as measured by GPC of 1 to 2.5, (F) a sulfur-containing compound in which at least one hydrocarbon group adjacent to sulfur is a secondary or tertiary hydrocarbon group, and as an optional component, (G) an α-olefin polymer having 3 to 6 carbon atoms, and having a kinematic viscosity at 40° C. of 450 to 51,000 mm/s, a sulfur content of 0.1 to 5 parts by weight, and a component (G) content of 0 to 15 parts by weight. The lubricating oil composition is suitable particularly for gear oil and the like.