Microcapsules loaded with active ingredients and a method for their preparation
US8110284B2 · kind B2 · utility
18Cited by
63References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2004 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Jan 31, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249997
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to microcapsules having a core material encapsulated within a microcapsular shell, the core material comprises at least one active ingredient, wherein the microcapsular shell comprises at least one inorganic polymer comprising polymerized precursors obtained by in-situ polymerization of the precursors; wherein the concentration of the core material based total weight of the microcapsules is above 95% w/w. The invention further relates to a composition and to a suspension comprising the microcapsules. The invention additionally relates to a process for preparing the microcapsules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.