Filtering lubricating oils to remove haze precursors
US6468417B1 · kind B1 · utility
18Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Jan 14, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G67/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A dewaxed oil having a tendency to form a haze at ambient or sub-ambient temperatures is contacted with a solid adsorbent to remove at least a portion of the haze precursors, thereby reducing the haze-forming tendency of the dewaxed oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.