C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 7/18 (2006.01) A01N 33/12 (2006.01) C08F 291/18 (2006.01) C08F 292/00 (2006.01)
Patent
CA 2505115
The invention concerns a method for treating the surface of a solid substrate which consists in carrying out a photopolymerization and a covalent grafting in situ on said substrate of a biocidal copolymer. Said method is characterized in that it comprises the following steps: a) contacting said solid substrate with a formulation containing: 1) at least one monomer including a biocidal group; 2) at least one compound copolymerizable with said biocidal monomer including a mono-, di-or polyfunctional monomer or oligomer selected among acrylate, epoxide or vinylether monomers or oligomers; 3) at least one photoinitiator selected among free radical and/or cationic photoinitiators; and 4) at least on grafting agent on said substrate; and b) carrying out a photopolymerization or covalent grafting of the resulting copolymers by subjecting said formulation in contact with said solid substrate to ultraviolet radiation.
La présente invention concerne un procédé de traitement de la surface d'un substrat solide dans lequel on réalise une photopolymérisation et un greffage covalent in situ sur ledit substrat d'un copolymère biocide, caractérisé en ce qu'on effectue des étapes dans lesquelles a) on met en contact ledit substrat solide avec une formulation comprenant: 1- au moins un monomère comportant un groupement biocide, 2- au moins un composé copolymérisable avec ledit monomère biocide comprenant un monomère ou oligomère mono - di - ou plurifonctionnel choisi parmi les monomères ou oligomères acrylate, époxyde ou vinyléther, 3- au moins un photoamorceur choisi parmi des photoamorceurs radicalaires et/ou cationiques, et 4- au moins un agent de greffage sur ledit substrat, et b) On réalise une photocopolymérisation et un greffage covalent des copolymères obtenus en soumettant ladite formulation en contact avec ledit substrat solide à un rayonnement ultraviolet.
Arnautu Monica
Perichaud Alain
Desarrollo Del Grafting S.l.
Goudreau Gage Dubuc
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