Smoke reducing additive for two-cycle engine lubricant-fuel mixture
US5108462A · kind A · utility
12Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Dec 27, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricant-fuel mixture containing an amine salt and/or amide of a thiobenzoic acid derivative is effective in reducing the smoke emitted during operation of a two-cycle internal combustion engine. A preferred thiobenzoic acid derivative is 4-hydroxy-3,5-ditert-dibutyldithiobenzoate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.