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:
Jul. 18, 2023
Filed:
Feb. 27, 2017
Applicant:
Kyodo Yushi Co., Ltd., Fujisawa, JP;
Inventors:
Tsuyoshi Kochi, Tokyo, JP;
Mitsuhiro Kakizaki, Chigasaki, JP;
Yosuke Fujiwara, Hamamatsu, JP;
Tomohiro Monna, Hamamatsu, JP;
Assignee:
KYODO YUSHI CO., LTD., Fujisawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 107/04 (2006.01); C10M 107/10 (2006.01); C10M 133/16 (2006.01); C10M 133/42 (2006.01); C10M 147/02 (2006.01); C10M 159/06 (2006.01); C10M 159/08 (2006.01); C10M 169/02 (2006.01); C10N 20/02 (2006.01);
U.S. Cl.
CPC ...
C10M 169/044 (2013.01); C10M 107/04 (2013.01); C10M 107/10 (2013.01); C10M 133/16 (2013.01); C10M 133/42 (2013.01); C10M 147/02 (2013.01); C10M 159/06 (2013.01); C10M 159/08 (2013.01); C10M 169/02 (2013.01); C10M 2205/0225 (2013.01); C10M 2205/0285 (2013.01); C10M 2213/062 (2013.01); C10M 2215/06 (2013.01); C10M 2215/08 (2013.01); C10M 2215/102 (2013.01); C10M 2215/222 (2013.01); C10N 2020/02 (2013.01);
Abstract
Provided is a grease composition for a ball joint that can reduce the wear of a ball seat at a slide region and also has excellent compatibility with a dust cover. The grease composition for a ball joint comprises a base oil, a thickener, and an additive. The base oil contains an ethylene-α-olefin copolymer and the kinetic viscosity of the base oil at 40° C. is 2,000 to 6,000 mm/s. The additive contains a polar wax (e.g., monoamide wax or ester wax).