Back to results
US 2015/0087698 A1Published application
Solvent addition and removal in the hydrogenation of catmint oil
AssigneeE. I. Du Pont de Nemours and Company
InventorsJOHN CHARLES FISHER, KEITH W. HUTCHENSON, SCOTT CHRISTOPHER JACKSON, LEO ERNEST MANZER, MARK A. SCIALDONE, MAYIS SEAPAN
Life of this patent
Estimating the term…
Abstract
Disclosed are methods for treating catmint oil. The treated catmint oil can be used for the production of hydrogenated catmint oil, which is enriched in the insect repellent, dihydronepetalactone, and from which formulated products may be prepared.
Claims20
A process for preparing hydrogenated catmint oil comprising:
- (a) distilling crude catmint oil to produce (i) a distillate fraction comprising volatile components driven off from the beginning amount of crude catmint oil, and (ii) a pot fraction;
- and
- (b) contacting the pot fraction of step (a) with hydrogen and a hydrogenation catalyst to produce hydrogenated catmint oil;
- wherein one or both of steps (a) and (b) are conducted in the presence of a solvent.
1 more element
A process for preparing a product formulated from a hydrogenated catmint oil, comprising:
- (a) distilling a beginning amount of crude catmint oil to produce (i) a distillate fraction comprising volatile components driven off from the beginning amount of crude catmint oil, and (ii) a pot fraction;
- (b) contacting the pot fraction of step (a) with hydrogen and a hydrogenation catalyst to produce hydrogenated catmint oil;
- and
- (c) incorporating the hydrogenated catmint oil produced in step (b) into a formulated product for application to the skin, hide, hair, fur or feathers of a human or domesticated animal;
- wherein the distillation of step (a) and/or the hydrogenation of step (b) is conducted in the presence of a solvent.
2 more elements
Hydrogenated catmint oil that comprises a 9S dihydronepetalactone.
Dependencies are inferred from the claim text.