Production of hydroxy fatty acids and estolide intermediates
US5380894A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1991 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Mar 1, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/732
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of hydroxy fatty acids and novel estolide compounds, each of which may be used as lubricants, greases, plasticizers and printing inks, as well as in cosmetics. The estolides are of the formula (I): ##STR1## wherein R.sub.1 is selected from C.sub.6 -C.sub.16 hydrocarbons which may be saturated or unsaturated, and branched or straight chain, and optionally substituted, such as with one or more hydroxy groups; R.sub.2 is independently selected from C.sub.2 -C.sub.17 hydrocarbons which may be saturated or unsaturated, and branched or straight chain, and optionally substituted, such as with one or more hydroxy groups; A is selected from C.sub.3 -C.sub.14 hydrocarbons which may be saturated or unsaturated, and branched or straight chain, and optionally substituted; n is greater than or equal to 1; y is an integer from 3-13; x is 1 or 2; and . . . designates a single or double carbon/carbon bond. Formation of these estolides is by catalytic reaction of unsaturated fatty acids, especially .DELTA..sup.5 and .DELTA..sup.6 unsaturated fatty acids. Following their formation, the estolides may be recovered for subsequent use, or in the alternative, they may be hydro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.