Alkanolamine, friction-reducing agent, and lubricating oil composition
US10927084B2 · kind B2 · utility
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Key dates
| Filing date | Jan 18, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jan 18, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
To provide a friction-reducing agent containing no sulfur nor phosphorus and being excellent in friction-reducing properties, and a lubricating oil composition using it. An alkanolamine represented by the following formula is used as a friction-reducing agent: wherein A1 and A2 are each independently a hydroxy group or a hydrogen atom, provided that A1 and A2 are not hydrogen atoms at the same time, R1 is a hydrocarbon group having at most 30 carbon atoms, R2 to R6 are each independently a hydrogen atom or a hydrocarbon group having at most 30 carbon atoms, and m and n are each independently an integer of from 0 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.