Low ash lubricating compositions for controlling steel corrosion
US12146115B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 20, 2022 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This disclosure describes low ash lubricating composition achieving passing steel corrosion, passing high temperature deposit formation, and emulsion stability. The lubricating compositions include one or more select corrosion or rust inhibitor chemistries having an oil-soluble acyclic structure with acidic, hydroxy, or amine moieties but being free of imine, imide, and/or amidine moieties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.