Process for preparing spheroids of plant origin
US5733551A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1995 |
| Grant date | Mar 31, 1998 |
| Priority date | — |
| Expiry date | Jun 28, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1652
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions of natural, especially plant, constituents in the form of spheroids in particular of the medicinal type and formulations necessary to their preparation by a technical extrusion and spheronization system. Compositions characterized by the direct use of large quantities of solutions of natural, especially plant, origin such as liquid extracts adsorbed by natural or synthetic polymer-type substances. These various components are selected so that their combination permits the obtainment of a mass of a plasticity compatible with the technical extrusion and spheronization system. According to the process, liquid extract is prepared, this extract is incorporated in a substance of a polymeric type, the correctly moistened mass is extruded by micro-extrusion techniques and the extrudates are spheronized and then dried and calibrated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.