(Co)polymerization process in aqueous emulsion of fluorinated olefinic monomers
US5516863A · kind A · utility
41Cited by
18References
10Claims
0Family size
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Key dates
| Filing date | Aug 18, 1995 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Aug 18, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/01
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Radical (co)polymerization process of fluorinated olefinic monomers, optionally in association with one or more non-fluorinated olefins, in which the monomers are (co)polymerized in aqueous emulsion, in the presence of a hydrogenated chain transfer agent selected from hydrogen, aliphatic hydrocarbons and fluorohydrocarbons C.sub.1 -C.sub.20 and of a branched chain aliphatic alcohol C.sub.3 -C.sub.12 characterized by a ratio between the number of hydroxyl groups and the number of methyl groups lower than or equal to 0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.