Polyalphaolefin dimers having low kinematic viscosities
US5817899A · kind A · utility
7Cited by
8References
6Claims
0Family size
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Key dates
| Filing date | Jun 16, 1997 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Jun 16, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A dimer composition has an improved low temperature viscosity if it has less than a certain amount of normal paraffin. A 1-octene dimer should have less than 0.50 wt. % normal hexadecane, a 1-decene dimer should have less than 0.05 wt. % normal eicosane, a 1-dodecene dimer should have less than 0.60 wt. % normal tetracosane, and a 1-tetradecene dimer should have less than 0.10 wt. % normal octacosane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.