Imine based liquid crystals for the controlled release of bioactive materials
US8158135B2 · kind B2 · utility
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5References
14Claims
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Key dates
| Filing date | Mar 19, 2007 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Mar 25, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L9/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a delivery system based on a film of an imine forming liquid crystalline phase, mixed with at least with one biologically active substance, to which a constant or variable electric field can be applied. The delivery system can be used as a delivery system for biologically active substances such as flavors, fragrances, bactericides, fungicides, insecticides, insect attractants or repellents, agrochemicals or pharmaceuticals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.