C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 73/00 (2006.01) C02F 1/00 (2006.01) C08G 71/02 (2006.01) C08G 73/02 (2006.01)
Patent
CA 2705409
The invention relates to a polyaniline, comprising aniline units and organosulphur units, characterized in that the polyaniline is doped and has a number average degree of polymerization of approximately 5 to approximately 50. The scope of the invention also includes a process for the preparation of polyaniline, wherein aniline and at least one organosulphur unit are converted to a polyaniline derivative in an oxidative, acid-catalyzed polymerization reaction. A subject of the invention is also a coated substrate which is coated with the polyaniline according to the invention and also a process for the coating of the substrate. The scope of the invention furthermore also includes a coating composition which is suitable for the coating of the substrate. The invention thus also relates to a process for the preparation of the coating composition. A subject of the invention is also the use of polyaniline which is doped and has sulphur in the main polymer chain for water treatment and/or for the purification of air and also a purification reactor for carrying out the purification process.
L'invention concerne une polyaniline, comprenant des unités d'aniline et des unités de soufre organique, caractérisée en ce que la polyaniline est dopée et présente un degré de polymérisation moyen en nombre d'environ 5 à environ 50. L'invention concerne également un procédé de fabrication de polyaniline, sachant que de l'aniline et au moins une unité de soufre organique sont transformées en un dérivé de polyaniline par une réaction de polymérisation oxydante par catalyse acide. L'invention concerne aussi un substrat revêtu, qui est revêtu de la polyaniline selon l'invention, ainsi qu'un procédé de revêtement du substrat. L'invention concerne encore une composition de revêtement qui convient pour revêtir le substrat. L'invention concerne ainsi également un procédé de fabrication de la composition de revêtement. L'invention concerne également l'utilisation de polyaniline, qui est dopée et qui présente du soufre dans la chaîne principale polymérique, pour le traitement de l'eau et/ou pour la purification d'air, ainsi qu'un réacteur d'épuration pour la mise en oevre du procédé d'épuration.
Illing Gerhard
Mueller Franz-Xaver
Pettinger Karl-Heinz
Ulbricht Mathias
Fetherstonhaugh & Co.
Sued-Chemie Ag
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