Separation method utilizing liquid-liquid partition
US6454950B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Oct 3, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K1/20
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for the separation of a predetermined compound comprising i) partitioning the compound in a two-phase (system A) in which at least one of the phases is rich (phase 1) and the other is poor (phase 2) in a thermoseparating polymer (I), ii) collecting one phase (phase 1 or phase 2) containing said compound, and iii if desired, further working up said compound from the phase collected in step ii, characterized a) in that polymer (I) is a micell-forming thermoseparating polymer, and b) in that phase 2 possibly contains at least one agent that is cloud point-decreasing for thermoseparating polymer (I), such as a polymer (II) that is incompatible with polymer (I) or a salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.