Method for manufacturing capsule series, and related capsule series
US9277759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2009 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Sep 28, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method includes separately conveying a first liquid solution (36) containing the first material and a second liquid solution (46) containing a liquid polyelectrolyte. The method includes forming of a series of drops (78) at the outlet (50), each drop (78) including a central core (80) formed from a first solution (36) and a peripheral film (82) formed from a second solution. The method includes immersing each drop (78) in a gelling solution (70) containing a reagent capable of reacting with the polyelectrolyte of the film (82) so as to form the gelled casing. The second solution (40) contains at least one surfactant before the former contacts the first solution (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.