C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 14/18 (2006.01) C08F 2/06 (2006.01)
Patent
CA 2325144
The present invention relates to a method for the production of partially fluorinated fluoropolymers, whereby at least one fluoropolymer is radically polymerized in the presence of polyfluoropropanes or polyfluorobutanes having structures CF3-CH2-CF2H, CF3-CHF-CF2H, CF3-CH2-CF3, CHF2-CF2-CH2F, CF3-CH2-CF2- CH3 and CF3-CHF-CF2-CH3, and optionally a molecular-weight regulator.
L'invention concerne un procédé de production de polymères fluoro-carbonés partiellement fluorés, selon lequel au moins un monomère fluoro-carboné est radicalement polymérisé en présence de polyfluoropropanes ou de polyfluorobutanes des structures CF¿3?-CH¿2?-CF¿2?H, CF¿3?-CHF-CF¿2?H, CF¿3?-CH¿2?-CF¿3?, CHF¿2?-CF¿2?-CH¿2?F, CF¿3?-CH¿2?-CF¿2?-CH¿3? et CF¿3?-CHF-CF¿2?-CH¿3? et éventuellement d'un régulateur de poids moléculaire.
Heilig Gerhard
Kruger Ralf
Sommerfeld Claus-Dieter
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
Lanxess Deutschland Gmbh
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