A method of coating the surface of an inorganic substrate...

C - Chemistry – Metallurgy – 03 – C

Patent

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C03C 17/32 (2006.01) B05D 3/14 (2006.01) B05D 7/24 (2006.01) C03C 17/28 (2006.01) C03C 23/00 (2006.01) C03C 25/22 (2006.01) C03C 25/62 (2006.01) C04B 41/45 (2006.01) C04B 41/48 (2006.01) C04B 41/83 (2006.01) C23C 16/02 (2006.01) C23C 16/30 (2006.01)

Patent

CA 2408556

The invention relates to method of coating the surface of an inorganic substrate of glass, silicon dioxide, ceramics or carbon, which method comprises a step of cleaning the surface of the substrate by subjecting the surface to a reducing gas plasma, a step of activating the surface by generating radicals on the surface of the substrate by subjecting the surface to a reducing gas plasma and forming a first layer on the substrate surface using a plasma enhanced polymerization process employing one or more monomers comprising monomers with a sufficient low molecular weight for them to be in their gaseous state in the gas plasma, selected from the group consisting of C1-C16 alkanes, C2-C16 alkanes, C2-C16 alkynes, C2-C16 alkynes, styrene, aromatic monomers of styrene compounds, monomers of vinyl- and acrylate- compounds.

L'invention concerne un procédé servant à revêtir la surface d'un substrat inorganique par du verre, du dioxyde de silicium, de la céramique ou du carbone. Ce procédé consiste à nettoyer la surface du substrat par soumission de cette surface à un plasma gazeux de réduction, à activer cette surface par génération de radicaux sur la surface du substrat par soumission de ladite surface à un plasma gazeux de réduction et à créer une première couche sur la surface du substrat au moyen d'un processus de polymérisation augmenté au plasma mettant en application un ou plusieurs monomères comprenant des monomères dont le poids moléculaire est suffisamment bas pour qu'il soit à l'état gazeux dans le plasma gazeux, ces monomères étant sélectionnés dans le groupe constitué par des alcanes C¿1?-C¿16?, des alcènes C¿2?-C¿16?, des alcynes C¿2?-C¿16?, du styrène, des monomères aromatiques de composés de styrène, ainsi que des monomères de composés de vinyle et d'acrylate.

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