Low smoke lubricating composition for two-phase engines
US5505869A · kind A · utility
2Cited by
5References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 18, 1994 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Jul 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A carbonate ester of an aliphatic triol or tetraol which can be defined with the following formula: ##STR1## wherein R.sub.1, R.sub.2, R' and p are as defined in the description, is used as a lubricating base with a low quantity of smoke for two-phase engines with internal combustion. Lubricating compositions are described which contain a carbonate ester (1) together with one or more products selected from solvents, bright stock, or other anti-seizing additives, plus normal additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.