TREATMENT OF MINERAL SUBSTRATES

A method for rendering substrates water repellent by applying to the substrate a composition comprising a mixture formed by combining (i) water or a solvent; (ii) a methylhydrogen-siloxane polymer or copolymer; (iii) an alkoxysilane having the formula R>a)4-a in which R represents an alkyl-group...

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Bibliographische Detailangaben
Hauptverfasser:	LIN, FEIFEI, STARK-KASLEY, LORI, ANN, FISHER, PAUL, DAVID
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CORRECTING FLUIDS DYES FILLING PASTES INKS LIME, MAGNESIA MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A method for rendering substrates water repellent by applying to the substrate a composition comprising a mixture formed by combining (i) water or a solvent; (ii) a methylhydrogen-siloxane polymer or copolymer; (iii) an alkoxysilane having the formula R>a)4-a in which R represents an alkyl-group containing 1-10 carbon atoms, an alkenyl group containing 2-8 carbon atoms, an aryl group, or an haloalkyl group, a has a value of 1 or 2, and R represents an alkyl group containing 1-6 carbon atoms; and (iv) a silicone resin. The compositions can be applied either by direct application to the substrate or by incorporation into the substrate during its manufacture. L'invention concerne un procédé destiné à rendre des substrats imperméables par application au substrat d'une composition comprenant un mélange formé par combinaison (i) d'eau ou d'un solvant, (ii) d'un polymère ou copolymère méthylhydrogène-siloxane, (iii) d'un alkoxysilane de formule RaSi(OR )4-a dans laquelle R représente un groupe alkyle de 1 à 10 atomes de carbone, un groupe alcényle contenant de 2 à 8 atomes de carbone, un groupe aryle, ou un groupe haloalkyle, a prend la valeur 1 ou 2, et R représente un groupe alkyle contenant de 1 à 6 atomes de carbone, et (iv) d'une résine silicone. Les compositions peuvent être appliquées directement au substrat ou par incorporation au substrat lors de sa fabrication.