Processes for obtaining (-)-guaiol and the use thereof
AssigneeCiba Specialty Chemicals Corporation
InventorsPeter Fankhauser, Gerd Heinemann, Victor Paul Eliu, William Robert McGilvray
Life of this patent
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Abstract
A process for obtaining oils of sesquiterpenes and sesquilactones and (−)-guaiol from the oil of Callitris intratropica, processes for encapsulation of the oil from Callitris intratropica, and the various uses of the oil and the encapsulated oil are described. The oils are suitable for various purposes in the personal care field, e.g. for the antimicrobial treatment of skin, mucosa and hair and of textile fiber materials, as an antimycotic against skin fungi and moulds, as an anti-inflammatory, as an acaricide against house dust mites and ticks, and for preserving cosmetic products.
Claims6
A process for obtaining (−)-guaiol, wherein pieces of wood with or without bark and/or pieces of bark of Callitris intratropica, glaucophylla or columellaris are extracted with a supercritical solvent and the (−)-guaiol is crystallised out at room temperature, or frozen out, from the oil thereby obtained.
Dependencies are inferred from the claim text.