TITANIUM DIOXIDE COATINGS HAVING ROUGHENED SURFACES AND METHODS OF FORMING TITANIUM DIOXIDE COATINGS HAVING ROUGHENED SURFACES
First Claim
1. A method of forming an anatase titanium dioxide coating having a roughened surface on a substrate, comprising:
- preparing a titanium dioxide sol-gel composition comprising colloidal metal oxide particles or colloidal silica particles;
coating the substrate with the sol-gel composition; and
heating the coated substrate to form a surface roughened anatase titanium dioxide coating.
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Accused Products
Abstract
Methods for forming surface roughened titanium dioxide coatings are disclosed. Sol-gel compositions may be prepared having colloidal metal oxide particles and/or colloidal silica particles, formed on a substrate, and subsequently the coated substrate may be heated at a temperature sufficient to form a surface roughened anatase titanium dioxide coating. Surface roughened titanium dioxide coatings having at least one of improved antimicrobial properties, self-cleaning properties, hydrophilicity, and/or activation time are also disclosed. Substrates comprising such coatings are also disclosed.
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Citations
21 Claims
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1. A method of forming an anatase titanium dioxide coating having a roughened surface on a substrate, comprising:
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preparing a titanium dioxide sol-gel composition comprising colloidal metal oxide particles or colloidal silica particles; coating the substrate with the sol-gel composition; and heating the coated substrate to form a surface roughened anatase titanium dioxide coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of improving at least one of antimicrobial properties, self-cleaning properties, hydrophilicity, and activation time of a titanium dioxide coating, comprising:
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preparing a titanium dioxide sol-gel composition comprising colloidal metal oxide particles or colloidal silica particles; coating a substrate with the sol-gel composition; and heating the coated substrate to form a surface roughened anatase titanium dioxide coating. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An antimicrobial and/or self-cleaning laminate, comprising:
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a substrate; a surface roughened anatase titanium dioxide coating comprising colloidal metal oxide particles or colloidal silica particles on a surface of the substrate. - View Dependent Claims (19, 20)
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21. A titanium dioxide coated substrate, wherein said titanium dioxide coating is made by:
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preparing a titanium dioxide sol-gel composition comprising colloidal metal oxide particles or colloidal silica particles; coating a substrate with the sol-gel composition; and heating the coated substrate to form a surface roughened anatase titanium dioxide coating.
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Specification