Method of creating crystalline substances
US8241371B2 · kind B2 · utility
11Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Sep 2, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D9/005
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for preparing a cocrystal of an active substance and a cocrystal former, the process involving precipitating the active substance and the cocrystal former together from solution or suspension, in the presence of a supercritical or near-critical fluid, in particular using a GAS, SAS, SEDS or SAS-EM process. The invention also provides a cocrystal prepared using such a process, and its use as a seed crystal in a subsequent process for precipitating a cocrystal of an active substance and a cocrystal former.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.