Lubricant base oil and method of producing the same
US8012342B2 · kind B2 · utility
2Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2005 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Mar 15, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/95
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to lubricant base oil having high viscosity indexes and low pour points, and particularly to lubricant base oil consisting essentially of a normal paraffin and an isoparaffin, wherein (a) an average carbon number Nc in one molecule is not less than 28 but not more than 40, and (b) an average branch number Nb in one molecule calculated from a ratio of CH3 carbon to total carbon determined by 13C-NMR analysis and the average carbon number Nc in one molecule is not more than (0.2Nc−3.1) but not less than 1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.