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:
Jun. 26, 2018
Filed:
Apr. 22, 2015
Kyodo Yushi Co., Ltd., Fujisawa-shi, Kanagawa, JP;
KYODO YUSHI CO., LTD., Fujisawa, JP;
Abstract
A grease is provided which has an improved inflow property of the grease into a lubrication unit and has a long life when used for bearings even under a high temperature environment. A grease composition comprising a base oil and a thickener, characterized in that the base oil contains an ester synthetic oil, the content of the ester synthetic oil is not less than 20% by mass of the total mass of the base oil and the thickener contains a diurea compound represented by the Formula (I):R—NHCONH—R—NHCONH—R,  (I) wherein Ris a Cdivalent aromatic hydrocarbon group, Rand Rare the same or different, and represent cyclohexyl or Clinear or branched alkyl, and the molar ratio of cyclohexyl to the total of cyclohexyl and Clinear or branched alkyl is 60 to 95%.