Compositions providing improved functionalization of terminal anions and processes for improved functionalization of terminal anions
US6605564B1 · kind B1 · utility
0Cited by
28References
18Claims
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Assignee
Inventors
Key dates
| Filing date | Apr 28, 1999 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Apr 28, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions including one or more anionic polymerization initiators and one or more additives for improving functionalizing efficiency of living polymer anions are disclosed. The present invention also provides compositions including one or more electrophiles and one or more additives for improving functionalizing efficiency of living polymer anions. Novel electrophiles and processes for improving polymer anion functionalization efficiencies are also disclosed. The additives are generally alkali metal halides or alkoxides, and the initiators are generally organs alkali metal compounds, particularly alkyl lithium compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.