Drug – bio-affecting and body treating compositions – Dentifrices – Oxygen or chlorine releasing compound containing
Reexamination Certificate
2007-07-31
2007-07-31
Krass, Frederick (Department: 1614)
Drug, bio-affecting and body treating compositions
Dentifrices
Oxygen or chlorine releasing compound containing
C424S053000, C433S216000, C502S350000, C502S200000
Reexamination Certificate
active
10791783
ABSTRACT:
To eliminate a defect in conventional dental bleaching agent, that light for activating titanium oxide hardly reaches down to the titanium oxide at the teeth surface to be bleached, a dental bleaching agent set consists of two components of which the first component is attached to teeth surface and irradiation of light is followed after the second component is contacted on the teeth surface, the first component consisting of an organic solvent, containing at least one of a titanium oxide, a nitrogen doped titanium oxide, and a titanium oxinitride having photocatalytic activities, and preferably one or more of a metal oxide, a metal salt, and a metal powder, a thickener and water, the second component consisting of a compound that produces hydrogen peroxide in water, a thickener and a carrier.
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Wikipedia, the free encyclopedia, Titanium Dioxide, http://en.wikipeida.org/wiki/Titanium—dioxide.
Akahane Shoji
Aoki Koyu
Ikushima Keisuke
Morikawa Takeshi
Ohwaki Takeshi
GC Corporation
Kaisha Toyota Chuo Kenkyusho
Krass Frederick
Roberts Lezah
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