Solid lubricants and friction modifiers for heavy loads and rail applications
US6136757A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1999 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Jun 22, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to novel lubricant compositions comprising a solid lubricant and a binding agent in water medium suitable for lubricating steel-steel interfaces such as tractor-trailer couplings, rail-wheel systems and other heavy duty applications. The invention also relates to compositions described above which include friction modifiers with high or very high and positive coefficients of friction such that the coefficient of friction is considerably higher than the solid lubricant. The invention further relates to compositions comprising a binding agent and a friction modifier with a very high and positive coefficient of friction in a water medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.