The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 14, 2005

Filed:

Feb. 15, 2000
Applicants:

Eric Aubay, Le Perreux sur Marne, FR;

Thierry Chopin, Saint-Leu la Foret, FR;

Cédric Geffroy, Paris, FR;

Véronique Guillou, Antony, FR;

Corinne Lehaut, Paris, FR;

Inventors:

Eric Aubay, Le Perreux sur Marne, FR;

Thierry Chopin, Saint-Leu la Foret, FR;

Cédric Geffroy, Paris, FR;

Véronique Guillou, Antony, FR;

Corinne Lehaut, Paris, FR;

Assignee:

Rhodia Chimie, Boulogne Billancourt Cedex, unknown;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G023/047 ; C09C001/36 ;
U.S. Cl.
CPC ...
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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