Finely divided solid crystalline powders via precipitation into an anti-solvent
US5707634A · kind A · utility
73Cited by
17References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1995 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Jun 8, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2215/0404
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is a process for producing a finely divided solid which comprises PA1 (1) dissolving the solid to be finely divided in a liquid carrier solvent to form an injection solution and PA1 (2) adding the injection solution of step (1) to a volume of anti-solvent sufficient to precipitate or crystallize the solid. The solid can be a pharmaceutical, agricultural chemical, commercial chemical, fine chemical, food item, photographic chemical, dye, explosive, paint, polymer or cosmetic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.