Sulfurized catecholate detergents for lubricating compositions
US10975323B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Dec 7, 2016 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Sep 2, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricating composition includes a sulfurized oxy-substituted aromatic polyol compound and an oil of lubricating viscosity. The sulfurized oxy-substituted aromatic polyol compound includes at least one of a sulfurized oxy-substituted aromatic polyol and a salt of a sulfurized oxy-substituted aromatic polyol. The compound is suitable as a replacement for detergents that contain Cn alkyl phenols derived from oligomers of propylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.