|
Process for the removal of terpenes from essential oils - Patent 5061502 (2304 words) |
 | Terpenes are removed from essential oils by (a) contacting terpene-containing essential oils with a polar solid (adsorbent); (b) separating the loaded adsorbent from the liquid phase enriched with terpenes; and (c) subjecting the adsorbent loaded with essential oils to an extraction with compressed carbon dioxide. |
| These essential oils frequently contain terpene hydrocarbons of the mono- and sesquiterpene series which have only a limited storage stability and are thermolabile and, in addition, display a smaller aroma intensity than the actual aroma material which is preponderantly composed of volatile oxygen-containing compounds, such as aldehydes, ketones, esters, acids, phenols, alcohols and lactones. |
| A number of processes are known for the removal of terpenes from of essential oils which, for the separation of the terpenes, utilize differences in the vapor pressure, in the polarity or in the solubility of the terpene components in comparison with the oxygen-containing compounds. |
| Fourth Generation Mobile Forum (2190 words) |
| The chair or the chair's delegate shall request that each potential essential patent holder submit either a patent letter of assurance or a statement that the potential essential patent holder is not aware of any patents or patent applications that it owns that would be infringed by a compliant implementation of the standard. |
| Essential patents are those patents, including patent applications, whose infringement is unavoidable in a compliant implementation of either mandatory or optional portions of a standard and where there is no other reasonable technical implementation available. |
| The response from the patent holder serves as further guidance as to whether or not to proceed with the inclusion of the referenced patented technology in the draft standard. |
Feeds |
Contact