Microcapsules containing an oxidizable active, and a process for preparing the same
US9308178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2013 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Oct 16, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D1/22
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed is a microcapsule including a core having an oxidizable active (OA), the outer part of said core being in a solid form, and a water insoluble coating obtained from an encapsulating agent (EA), with the coating surrounding said core. In particular, there is disclosed a microcapsule wherein the EA is water soluble or organic solvent, in particular ethanol, soluble, or a microcapsule wherein said EA is an agent, the water solubility of which is pH-dependent. In particular, the core does not consist in or comprise a metal oxide, and the coating does not comprise a disintegrant, in particular sodium starch glycolate. Also disclosed is a process for preparing the microcapsules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.