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. 11, 2023
Filed:
Mar. 05, 2019
Applicant:
Nippon Grease Co., Ltd., Osaka, JP;
Inventors:
Assignee:
NIPPON GREASE CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/06 (2006.01); C10M 107/24 (2006.01); C10M 109/00 (2006.01); C10M 113/06 (2006.01); C10M 115/08 (2006.01); C10M 123/02 (2006.01); C10M 129/74 (2006.01); C10M 135/10 (2006.01); C10M 141/08 (2006.01); C10M 143/06 (2006.01); C10M 161/00 (2006.01); C10M 169/04 (2006.01); C10N 20/00 (2006.01); C10N 10/02 (2006.01); C10N 30/12 (2006.01); C10N 40/32 (2006.01);
U.S. Cl.
CPC ...
C10M 169/06 (2013.01); C10M 107/24 (2013.01); C10M 109/00 (2013.01); C10M 113/06 (2013.01); C10M 115/08 (2013.01); C10M 123/02 (2013.01); C10M 129/74 (2013.01); C10M 135/10 (2013.01); C10M 141/08 (2013.01); C10M 143/06 (2013.01); C10M 161/00 (2013.01); C10M 169/04 (2013.01); C10M 2201/056 (2013.01); C10M 2205/026 (2013.01); C10M 2207/283 (2013.01); C10M 2215/28 (2013.01); C10M 2219/044 (2013.01); C10M 2290/00 (2013.01); C10M 2290/04 (2013.01); C10M 2290/10 (2013.01); C10N 2010/02 (2013.01); C10N 2020/065 (2020.05); C10N 2020/067 (2020.05); C10N 2020/081 (2020.05); C10N 2030/12 (2013.01); C10N 2040/32 (2013.01);
Abstract
An object of the present invention is to provide a grease composition which has little influence on the environment and has good rust prevention and water resistance against salt water such as sea water. The grease composition comprises a biodegradable base oil and a rust-preventive agent comprising a calcium sulfonate complex and a sorbitan fatty acid ester, wherein a total content of biodegradable organic substances in the grease composition is 75% by mass or more, and wherein a content of the rust-preventive agent is 2.5 to 30% by mass.