Decolorization of hydroxy-containing methacrylate...

Details Decolorization of hydroxy-containing methacrylate... Decolorization of hydroxy-containing methacrylate...

C - Chemistry, Metallurgy

08

F

C08F 6/08 (2006.01) C08F 6/00 (2006.01) C08F 6/02 (2006.01)

Patent

CA 2278021

This invention relates to a process whereby hydroxy-containing methacrylate homo- and copolymers are decolorized by the addition of a strong acid and a chelating bidentate nitrogen ligand, with subsequent filtering through a polar adsorption medium.

Cette invention a trait à un procédé permettant de décolorer des homopolymères et des copolymères de méthacrylate renfermant un hydroxy et ce, par adjonction d'un acide fort ainsi que d'un ligand d'azote bidenté chélateur et filtration subséquente au moyen d'un milieu polaire d'adsorption.

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