Control over reverse addition fragmentation transfer polymerization processes
US9518136B2 · kind B2 · utility
2Cited by
83References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2015 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Mar 23, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.