C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/00 (2006.01)
Patent
CA 2740697
The present invention describes a process for preparing a poly(aryl ether ketone) by reacting a nucleophile with 4,4'-difluorobenzophenone (4,4'-DFBP) that is improved through the use of 4,4'- DFBP that meets one or more particular purity conditions. Also described are improved poly(aryl ether ketone) produced using the invention 4,4'-DFBP. Amounts of 2,4'-difluorobenzophenone (2,4'-DFBP), 4-monofluorobenzophenone (4-FBP), chlorine, and monochloromonofluorobenzophenone in 4,4'-DFBP are discussed.
La présente invention concerne un procédé de synthèse d'une poly(aryléthercétone) par réaction d'un nucléophile avec la 4,4'-difluorobenzophénone (4,4'-DFBP), ledit procédé étant amélioré par l'utilisation d'une 4,4'-DFBP satisfaisant à une ou plusieurs conditions de pureté particulières. La présente invention concerne également une poly(aryléthercétone) améliorée par l'utilisation de la 4,4'-DFBP selon l'invention. La présente invention porte sur les quantités de 2,4'-difluorobenzophénone (2,4'-DFBP), de 4-monofluorobenzophénone (4-FBP), de chlore et de monochloromonofluorobenzophénone dans la 4,4'-DFBP.
Robic
Solvay Advanced Polymers L.l.c.
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