COMPOSITION FOR COATING
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Abstract
The method consists of the formation of a layer over a stone substrate to increase its hardness, chemical resistance, wear and scratch resistance, comprising applying on the substrate a coating matrix incorporating an organic material and fillers including inorganic nanoparticles and/or microparticles; chemically binding said matrix to the substrate, by a self-assembly process and/or a binding process by covalent bonding, electrostatic bonding, van der Waals bonding or hydrogen bonds; and finally drying said matrix. The mentioned organic material is selected from organosilanes, organophosphates, polycarboxylic compounds, compounds based on triazine heterocycles and said nanoparticles are nanoparticles of oxides, carbides, borides, nitrides of metals or of semimetals.
21 Citations
27 Claims
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1-14. -14. (canceled)
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15. A method for coating a stone type substrate, the substrate being based on a mixture of stone aggregates with calcareous materials and/or dolomitic limestones agglomerated by means of a binder, the method comprising forming a coating layer over said substrate to increase hardness, chemical resistance, wear and scratch resistance;
- said forming the coating layer comprising the steps of;
applying on said substrate a coating matrix incorporating at least one organic material selected from the group consisting of organosilanes, organophosphonates, polycarboxylic compounds, compounds based on triazine heterocycles and fillers including inorganic nanoparticles and/or microparticles; binding said coating matrix to the substrate; and drying said coating matrix, wherein said organic material and/or said nanoparticles and/or microparticles are functionlized with molecules with at least one of the following functional groups;
Si—
OH, SiOR (R=organic compound) or Si—
Cl, aldehyde or ketone or COOH, NH2, phosphate, phosphonate, sulfonate, sulfate. - View Dependent Claims (16, 17, 18, 19)
- said forming the coating layer comprising the steps of;
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20. A board made of a coated stone type substrate, comprising the substrate whose composition is based on a mixture of stone aggregates with calcareous materials and/or dolomitic limestones agglomerated by means of a binder;
- a coating layer over said substrate to increase hardness, chemical resistance, wear and scratch resistance, said coating layer being applied as a coating matrix on said substrate, said coating matrix incorporating at least one organic material selected from the group consisting of organosilanes, organophosphonates, polycarboxylic compounds, compounds based on triazine heterocycles and fillers including inorganic nanoparticles and/or microparticles;
said coating matrix binding to the substrate and being in a dried condition, wherein said organic material and/or said nanoparticles and/or microparticles are functionlized with molecules with at least one of the following functional groups;
Si—
OH, SiOR (R=organic compound) or Si—
Cl, aldehyde or ketone or COOH, NH2, phosphate, phosphonate, sulfonate, sulfate. - View Dependent Claims (21, 22)
- a coating layer over said substrate to increase hardness, chemical resistance, wear and scratch resistance, said coating layer being applied as a coating matrix on said substrate, said coating matrix incorporating at least one organic material selected from the group consisting of organosilanes, organophosphonates, polycarboxylic compounds, compounds based on triazine heterocycles and fillers including inorganic nanoparticles and/or microparticles;
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23. A composition for coating as a coating layer over an element in the form of a board made of a stone type substrate to increase hardness, chemical resistance, wear and scratch resistance when applied as a coating matrix that binds onto said substrate with the coating matrix incorporating at least one organic material and being in a dried condition, the substrate being based on a mixture of stone aggregates with calcareous materials and/or dolomitic limestones agglomerated by means of a binder;
- said composition comprising the at least one organic material selected from the group consisting of organosilanes, organophosphonates, polycarboxylic compounds, compounds based on triazine heterocycles and fillers including inorganic nanoparticles and/or microparticles;
wherein said organic material and/or said nanoparticles and/or microparticles are functionlized with molecules with at least one of the following functional groups;
Si—
OH, SiOR (R=organic compound) or Si—
Cl, aldehyde or ketone or COOH, NH2, phosphate, phosphonate, sulfonate, sulfate. - View Dependent Claims (24, 25, 26, 27)
- said composition comprising the at least one organic material selected from the group consisting of organosilanes, organophosphonates, polycarboxylic compounds, compounds based on triazine heterocycles and fillers including inorganic nanoparticles and/or microparticles;
Specification