1,3,2-dioxaphosphorinane, 2-sulfide derivatives for use as anti-wear additives in lubricant compositions
US8877956B2 · kind B2 · utility
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6References
2Claims
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Key dates
| Filing date | Nov 8, 2013 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Nov 8, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to a non-acidic, sulfur-containing, phosphorus-containing compound of the formula Iwhere R1, R2, R3, R4, R5, R6, and R7 are as defined herein. Such a compound may exhibit improved antiwear performance and thermal stability in lubricating compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.