Polymeric support having novel pore structures
US7662866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2003 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Mar 8, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2220/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is a method of producing a cross-linked polymeric support having a multimodal pore structure, which comprises providing a degradable initiator molecule; providing an organic phase comprising said initiator molecule, radically polymerizable monomers and a porogen in a solvent; providing an aqueous phase comprising a transition metal catalyst; suspension polymerization of the organic phase by adding a ligand, co-ordinating to the transition metal in the aqueous phase to produce a cross-linked polymeric support having a primary pore structure and comprising initiator molecule; and subjecting the support obtained to degrading conditions to remove the initiator molecule from within the support to produce a cross-linked polymeric support having a secondary pore structure in addition to the primary pore structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.