End-functionalized polymers by controlled free-radical polymerization process and polymers made therefrom
US6784256B1 · kind B1 · utility
9Cited by
7References
35Claims
0Family size
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Key dates
| Filing date | Aug 30, 2000 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Feb 27, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/38
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A controlled free-radical polymerization process for forming end-functionalized polymers is disclosed, particularly by degenerative iodine transfer. The end-functionalized polymers are characterized by a polydispersity less than 2.5 and a predetermined molecular weight. The end-functionalized polymers are useful as reactive intermediates in condensation polymerization, chain polymerization and heterogeneous polymerization reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.