Method for reducing friction between railroad wheel and railway track using metal overbased colloidal disperse systems
US5213697A · kind A · utility
18Cited by
19References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1992 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Apr 22, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for reducing friction between railroad wheel and railway track is disclosed comprising applying to the railway track a composition comprising an overbased non-Newtonian colloidal disperse system comprising: (1) solid metal-containing colloidal particles predispersed in (2) a disperse medium of at least one inert organic liquid and (3) at least one member selected from the class consisting of organic compounds which are substantially soluble in the disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.