Drug – bio-affecting and body treating compositions – Dentifrices – Oxygen or chlorine releasing compound containing
Reexamination Certificate
2005-01-18
2005-01-18
Krass, Frederick (Department: 1614)
Drug, bio-affecting and body treating compositions
Dentifrices
Oxygen or chlorine releasing compound containing
C433S080000, C433S215000, C433S216000, C433S229000
Reexamination Certificate
active
06843981
ABSTRACT:
The bleaching compositions of discolored teeth comprise titanium dioxide initiating photocatalyst action with light irradiation, chemical compounds generating hydrogen peroxide in an aqueous solution and thickening agents. Further the bleaching methods of discolored teeth comprising applying the bleaching composition onto the surface area of the teeth and then initiating photocatalyst action by irradiating the applied surfaces area with light. Therefore, the present invention shows remarkable bleaching results due to easy application of the compositions onto discolored teeth and keeping the original activity of the photocatalyst without its deterioration.
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Higashiizumi Emi
Ishibashi Kouzo
Ishibashi Takuro
Ishihara Fukusaburo
Kakuda Minoru
Antonelli Terry Stout & Kraus LLP
Krass Frederick
Mitsubishi Gas Chemical Company Inc.
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