Stable emulsions of polymer-shell drops
US11266577B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Sep 16, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/594
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An emulsion comprising a continuous aqueous phase and a dispersed fatty phase in the form of drops, or conversely, wherein the drops comprise a shell formed of at least one anionic polymer comprising at least one carboxylic acid function and at least one cationic polymer comprising at least two amine functional groups, wherein the quantity of amine functional groups provided by the cationic polymer in the fatty phase is between 0.2 μmol and 10.5 μmol per gram of fatty phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.