Carrier system for water-soluble active ingredients
US9237998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A water releasing composition in the form of an emulsion and process for using the composition are provided. The composition includes an aqueous phase and an oil phase. The aqueous phase includes at least one water-soluble active ingredient at a concentration by weight of from about 0.1% to about 20%, based upon weight of the composition. The oil phase includes dimethicone at a concentration by weight of about 1% to about 25%, and an emulsifying crosslinked siloxane elastomer at a concentration by weight of about 0.1% to about 20%, both based upon weight of the composition. The composition has a phase ratio of the aqueous phase to the oil phase of about 3.0 to about 12.0. The composition converts from an emulsion to a plurality of droplets upon application of shear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.