Radical (co)polymerization process of fluorinated olefinic monomers
US5434229A · kind A · utility
10Cited by
23References
6Claims
0Family size
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Key dates
| Filing date | Feb 23, 1994 |
| Grant date | Jul 18, 1995 |
| Priority date | — |
| Expiry date | Feb 23, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F14/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Branched aliphatic hydrocarbons, having from 6 to 25 carbon atoms and a ratio between the number of methyl groups and the number of carbon atoms higher than 0.5, are used in radical (co)polymerization processes of fluorinated olefinic monomers, optionally in association with non-fluorinated olefins, both in suspension and in aqueous emulsion. Such hydrocarbons are characterized, in the usual reaction conditions, by a chain transfer effect practically absent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.