Lubricating oil dispersants derived from heavy polyamine
US5854186A · kind A · utility
9Cited by
26References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1997 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Mar 18, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2217/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A Koch functionalized product, which is the reaction product of at least one hydrocarbon with carbon monoxide and a nucleophilic trapping agent is derivatized with a heavy polyamine. A heavy polyamine is a mixture of polyamines comprising small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentahexamine but primarily oligomers with more than 6 nitrogens and more extensive branching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.