Method for the assessment of the dispersing capacity of new or used lubricating compositions and of additives for lubricating compositions
US12282011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2021 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Jan 12, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/0092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for the assessment of the dispersing capacity of new and used lubricating compositions, in particular for internal combustion engines, and of additives for lubricating compositions, includes the steps of: providing a homogeneous dispersion of at least one carbonaceous particulate in a composition to be tested, consisting of a lubricating composition or a fraction or component thereof, acquiring at least one micrographic image of a sample of said homogeneous dispersion, deposited on an observation support, and calculating the lacunarity of the acquired image as a parameter representative of the degree of dispersion of the particulate in the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.