Ring-opening polymerizations using a flow reactor
US11286341B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Sep 11, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Sep 11, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00795
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Techniques regarding the synthesis of polyesters and/or polycarbonates through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by a urea anion catalyst and/or a thiourea catalyst are provided. For example, one or more embodiments can comprise a method, which can comprise polymerizing, via a ring-opening polymerization within a flow reactor, a cyclic monomer in the presence an organocatalyst comprising a urea anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.