Radiation imagery chemistry: process – composition – or product th – Light sensitive titanium compound containing
Reexamination Certificate
2005-06-14
2005-06-14
Boyer, Charles (Department: 1751)
Radiation imagery chemistry: process, composition, or product th
Light sensitive titanium compound containing
C427S214000, C427S217000, C502S242000, C502S309000, C502S350000, C106S287190, C106S436000, C423S610000, C510S382000
Reexamination Certificate
active
06905814
ABSTRACT:
The invention concerns the use of a film-forming titanium dioxide dispersion for cleaning and disinfecting surfaces exposed to light, by depositing a film of titanium dioxide nanoparticles on said surfaces, the continuous phase of said dispersion comprising water and/or at least an alcohol with boiling point at less than 120° C., said dispersion having, when it comprises water, a pH different by at least 1 unit of the value of the titanium dioxide isoelectric pH in said dispersion. The invention also concerns a film-forming titanium dioxide dispersion further comprises a film-forming polymer. The invention further concerns a method for cleaning and disinfecting surfaces exposed to light which consists in depositing and then drying on said surfaces a titanium oxide film-forming dispersion.
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International Search Report.
Aubay Eric
Chopin Thierry
Geffroy Cédric
Guillou Veronique
Lehaut Corinne
Boyer Charles
Rhodia Chimie
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