Engine oil additive
US7074745B2 · kind B2 · utility
2Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2004 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Oct 14, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process and method for manufacturing an improved engine oil comprising mixing ferric fluoride with ZDDP to form an additive mixture, heating the additive mixture to at least 125° C. for at least 4 hours to produce a pre-reacted mixture, and adding the pre-reacted mixture to a fully formulated engine oil not containing ZDDP. Also disclosed is an engine oil prepared by a process comprising mixing catalyst with ZDDP to form an additive mixture, heating the additive mixture to about 60° C. to produce a pre-reacted additive mixture, and adding the pre-heated additive mixture to a fully formulated engine oil not containing ZDDP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.