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US 5,510,325 AGranted
Essential oil
AssigneeGivaudan-Roure Corporation
InventorsCharles Ehret, Martin Petrzilka
Life of this patent
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Abstract
A process for the preparation of hypoallergenic moss oils, comprising reacting the starting moss oil, a concrete or preferably an absolute thereof, with an aldehyde reducing agent, in an organic solvent medium.
Claims18
A process for the preparation of hypoallergenic moss oils, comprising reacting:
- (1) a starting material selected from the group consisting of moss oils, concretes, or absolutes thereof, the starting material containing at least one aldehyde allergen, with
- (2) an aldehyde reducing agent selected from the group consisting of alkali metal hydrides, complex metal hydrides, substituted complex metal hydrides, ammonium hydrides, and substituted ammonium hydrides,
- in an organic solvent selected from the group consisting of non-halogenated aliphatic hydrocarbons, halogenated aliphatic hydrocarbons, non-halogenated aromatic hydrocarbons, halogenated aromatic hydrocarbons, esters, alcohols, ethers, and mixtures thereof,
- under conditions such that allergenic aldehydes are reduced to non-allergenic alcohols.
1 more element
Dependencies are inferred from the claim text.