Process for oligomerization of polyunsaturated acids and esters, products obtained and use thereof
US5880298A · kind A · utility
21Cited by
8References
41Claims
0Family size
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Key dates
| Filing date | Jan 14, 1994 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Jan 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/465
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
For the oligomerization of a fatty ester or fatty acid containing conjugated double bonds, the reaction uses a catalyst consisting of an activated earth, e.g., montmorillonite, at a temperature of from 100.degree.-180.degree. C., preferably from 130.degree.-160.degree. C. The process can be carried out continuously or in a batch process on a fixed bed and is particularly applicable to conjugated methyl esters obtained by conjugating and transesterifying sunflower seed oil. The oligomerized products obtained are particularly useful as lubricants or polycondensation reactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.