Compostions and methods for enhancing the topical application of a basic benefit agent
US9474699B2 · kind B2 · utility
7Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/652
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A powder is disclosed including core/shell particles having an average particle size of less than 1000 microns, each particle contains a liquid core that is substantially free of water and includes A) a polar liquid having a percent surface polarity of at least 24%, a basic active ingredient, and C) from about 0.1% to about 20% by weight of at least one acidic solubility enhancing agent that is not an active ingredient; and a shell comprising hydrophobic particles. The powder can be used to topically administer the active ingredient to a human or animal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.