USE OF A NON-PHOTOCATALYTIC POROUS COATING AS ANTISOILING COATING

The present invention relates to the use as antisoiling coating of a porous coating having a polysiloxane matrix and a pore volume such that the potential fill factor of the total volume of said coating by oleic acid is at least 25% by volume, having a pore content ranging from 25 to 70% by volume a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GACOIN, THIERRY, VAGHARCHAKIAN, LAURIANNE, BOILOT, JEAN-PIERRE, RABOIN, LORRAINE, CADET, MAMONJY, MATHERON, MURIEL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CLEANING CLEANING IN GENERAL COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES GLASS INKS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHYSICS POLISHES PREVENTION OF FOULING IN GENERAL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to the use as antisoiling coating of a porous coating having a polysiloxane matrix and a pore volume such that the potential fill factor of the total volume of said coating by oleic acid is at least 25% by volume, having a pore content ranging from 25 to 70% by volume and not having photocatalytic properties. The antisoiling porous coating is self-cleaning, easy to clean and can be regenerated by simple washing. It is mainly intended for use in ophthalmic optics and proves to be very effective against sebum. In the preferred embodiment of the invention, this coating has a mesoporous structure. La présente invention concerne l'utilisation en tant que revêtement antisalissure d'un revêtement poreux possédant une matrice polysiloxane et un volume poreux tel que le taux de remplissage potentiel du volume total dudit revêtement par l'acide oléique est d'au moins 25 % en volume, présentant un taux de porosité allant de 25 à 70 % en volume et ne présentant pas de propriétés photocatalytiques. Le revêtement poreux antisalissure est auto-nettoyant, facile à nettoyer et régénérable par un simple lavage. Il est principalement destiné à une utilisation en optique ophtalmique, et s'avère très efficace contre le sébum. Dans le mode de réalisation préféré de l'invention, ce revêtement possède une structure mésoporeuse.