Process for synthetic lubricant production
US8865959B2 · kind B2 · utility
4Cited by
89References
16Claims
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Key dates
| Filing date | Mar 4, 2009 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Sep 8, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of oligomeric poly alpha-olefins includes oligomerizing low molecular weight PAO oligomer in the presence of a Lewis acid catalyst such as promoted aluminum trichloride or boron trifluoride under oligomerization conditions. The low molecular weight PAO oligomers used as a feed or feed component of the present process are the light olefinic by-product fractions including the dimers and light fractions from the metallocene-catalyzed PAO oligomerization process which are characterized by a molecular weight of 150 to 600 and a terminal olefin (vinylidene) content of at least 25%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.