Method for forming cyclodextrin polymer and lipophilic compound emulsions, resulting emulsions, and compositions including said emulsions
US8741347B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 23, 2010 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | May 1, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing a cyclodextrin polymer and/or a hydrophilic polymer emulsion having cyclodextrins as well as lipophilic compounds, the emulsions having a remarkable stability. In particular, the method includes: (i) adding a lipophilic compound into an aqueous solution of a cyclodextrin unit polymer or hydrophilic polymer having cyclodextrins; (ii) forming an emulsion from the mixture resulting from step (i). The invention also relates to the resulting emulsions, i.e. stabilized emulsions by a non-covalent and non-crystalline inclusion complex consisting of (i) a cyclodextrin unit polymer or a hydrophilic polymer having cyclodextrins and (ii) a lipophilic compound. The invention also relates to the use of said emulsions in the cosmetic, pharmaceutical and/or agri-food fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.