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1. MX2014005761 - ENCRISTALADO HIDROFOBICO.

Office
Mexique
Numéro de la demande 2014005761
Date de la demande 13.05.2014
Numéro de publication 2014005761
Date de publication 30.05.2014
Type de publication A
CIB
C03C 17/42
CCHIMIE; MÉTALLURGIE
03VERRE; LAINE MINÉRALE OU DE SCORIES
CCOMPOSITION CHIMIQUE DES VERRES, GLAÇURES OU ÉMAUX VITREUX; TRAITEMENT DE LA SURFACE DU VERRE; TRAITEMENT DE SURFACE DES FIBRES OU FILAMENTS DE VERRE, DE SUBSTANCES MINÉRALES OU DE SCORIES; LIAISON DU VERRE AU VERRE OU À D'AUTRES MATÉRIAUX
17Traitement de surface du verre, p.ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement
34avec au moins deux revêtements ayant des compositions différentes
42un revêtement au moins étant une substance organique et un revêtement au moins étant un non-métal
CPC
C03C 17/3417
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17Surface treatment of glass, not in the form of fibres or filaments, by coating
34with at least two coatings having different compositions
3411with at least two coatings of inorganic materials
3417all coatings being oxide coatings
C03C 17/42
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17Surface treatment of glass, not in the form of fibres or filaments, by coating
34with at least two coatings having different compositions
42at least one coating of an organic material and at least one non-metal coating
C03C 23/006
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
23Other surface treatment of glass not in the form of fibres or filaments
0005by irradiation
006by plasma or corona discharge
C03C 2217/76
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
2217Coatings on glass
70Properties of coatings
76Hydrophobic and oleophobic coatings
C03C 2218/1525
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
2218Methods for coating glass
10Deposition methods
15from the vapour phase
152by cvd
1525by atmospheric CVD
Déposants SAINT-GOBAIN GLASS FRANCE
Inventeurs Arnaud HUIGNARD
Martin MELCHER
Claire THOUMAZET
Raphael LANTE
Données relatives à la priorité 1160419 16.11.2011 FR
Titre
(ES) ENCRISTALADO HIDROFOBICO.
Abrégé
(EN) The invention relates to a method for manufacturing a hydrophobic glazing comprising the following consecutive steps: (a) formation of a layer of carbon-rich silicon oxycarbide (SiOxCy) at the surface of a substrate made of mineral glass via chemical deposit in the vaporous phase (CVD) on at least one portion of the surface of said substrate whereby said surface is exposed to a flow of reactive gases containing ethylene (C2H4), silane (SiH4), and carbon dioxide (CO2), at a temperature between 600°C and 680°C, the volume ratio of ethylene to silane (C2H4:SiH4) during step (a) being lesser than or equal to 3.3, (b) formation of a layer of SiO2 on the layer of silicon oxycarbide deposited in step (a), or (b') formation of a layer of silicon oxycarbide having low carbon content, presenting an average C:Si ratio lower than 0.2, (c) annealing and/or shaping of the substrate resulting from step (b) or (b'), at a temperature between 580°C and 700°C, (d) activation of the layer of silica formed in step (b) or activation of the layer of silicon oxycarbide formed in step (b') via plasma treatment or acid or basic chemical treatment, and (e) grafting, via covalent bond, of a fluorinated hydrophobe. The invention also relates to a hydrophobic glazing, preferably a windscreen, capable of being obtained by such a method.