Blending of low viscosity Fischer-Tropsch base oils and Fischer-Tropsch derived bottoms or bright stock
US7141157B2 · kind B2 · utility
15Cited by
16References
37Claims
0Family size
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Key dates
| Filing date | Mar 11, 2003 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Jan 25, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/95
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing Fischer-Tropsch derived lubricating base oils by blending a Fischer-Tropsch distillate fraction having a viscosity of 2 or greater but less than 3 cSt at 100 degrees C. with a Fischer-Tropsch derived bottoms fraction; lubricating base oil compositions having a viscosity between about 3 and about 10 cSt at 100 degrees C. and a TGA Noack volatility of less than about 45 weight percent; and finished lubricants using the aforesaid lubricating base oils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.