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:
Mar. 31, 2015
Filed:
Nov. 23, 2012
Applicant:
Nippon Grease Co., Ltd., Osaka-shi, Osaka, JP;
Inventors:
Assignee:
Nippon Grease Co., Ltd., Osaka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 125/00 (2006.01); C01G 41/00 (2006.01); C10M 125/22 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
C10M 169/04 (2013.01); C10M 125/22 (2013.01); C10M 2201/05 (2013.01); C10M 2201/065 (2013.01); C10M 2201/066 (2013.01); C10M 2205/0285 (2013.01); C10M 2207/0406 (2013.01); C10M 2207/106 (2013.01); C10M 2207/2805 (2013.01); C10M 2215/1026 (2013.01); C10N 2220/082 (2013.01); C10N 2230/06 (2013.01); C10N 2230/28 (2013.01); C10N 2230/76 (2013.01); C10N 2240/02 (2013.01); C10N 2250/10 (2013.01);
Abstract
The present invention provides a grease composition which has excellent conductivity and can rapidly remove static electricity generated by using a bearing. The grease composition comprises a base oil, a thickener and a tungsten disulfide powder, wherein the average particle diameter of the tungsten disulfide powder is 0.5 to 5.0 μm and the amount of tungsten disulfide powder based on 100 parts by mass of the total amount of base oil and thickener is 2.0 to 4.0 parts by mass.