Grease composition
US11697786B2 · kind B2 · utility
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11Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Mar 5, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.