Microcapsules containing at least one active ingredient, application of such capsules and one of their preparation methods
US5585050A · kind A · utility
7Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1993 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Jun 24, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/005
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to microcapsules containing at least one active ingredient, characterized in that they are constituted by: PA1 an hydrophilic and essentially non-aqueous liquid inner core, formed of a solution of at least one active ingredient which is water-soluble and amphiphilic in at least one non-aqueous hydrophilic solvent, and PA1 by a wall, enclosing said inner core and based on at least one polymer or copolymer, and to one of their preparation methods. The invention finds an application in systems of instant release of active ingredient, such as articles of hygiene, surgical gloves and materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.