Control over controlled radical polymerization processes
US8815971B2 · kind B2 · utility
3Cited by
81References
20Claims
0Family size
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Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Mar 19, 2031 |
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.