Use of photocatalytic preparations of colloidal titanium dioxide for preserving the original appearance of cementitious, stone, or marble products
AssigneeItalcementi S.p.A.
InventorsRossano Amadelli, Luigi Cassar, Carmine Pepe
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Abstract
Use of photocatalytic preparations of colloidal titanium dioxide optionally doped with a metal chosen from groups I-VA, and the lanthanide and actinide series of the periodic table, for preserving the original appearance of cementitious, stone, and marble products.
Claims16
A method for preserving the original appearance of cementitious, stone, or marble product from the action of atmospheric agents, characterized in that the surfaces of said products are treated with small successive amounts of an aqueous suspension of a colorless colloidal preparations of titanium dioxide or one of its precursors, until the desired thickness is reached.
Dependencies are inferred from the claim text.