Process for the preparation of low-viscosity fluorinated rubbers
AssigneeBayer Aktiengesellschaft
InventorsRalf Krüger, Wilhelm-Franz Biener
Life of this patent
Estimating the term…
Abstract
The present invention therefore provides a vulcanizable mixture comprising a low-viscosity fluorinated rubbers, in which at least one fluorine monomer is polymerized by free radicals in the presence of one or more compounds of the formula (I) or (II) wherein R1 represents a fluorine atom or a perfluoroalkyl radical having 1 to 4 carbon atoms and R2 represents a perfluoroalkyl radical having 1 to 4 carbon atoms and n=4 or 5, and, optionally, a molecular weight regulator.
Claims1
A vulcanizable mixture comprising a low-viscosity fluorinated rubber produced from the preparation of low-viscosity fluorinated rubbers, which comprises polymerizing at least one fluorine monomer by free radicals in the presence of one or more of the compounds selected from the group consisting of of the formulae (I), (II) and mixtures thereof
- wherein R1 represents a fluorine atom or a perfluoroalkyl radical having 1-4 C atoms and R2 represents a perfluoroalkyl radical having 1-4 C atoms and n=4 or 5, and, optionally, a molecular weight regulator.
Dependencies are inferred from the claim text.