Teeth cleaning composition with semiconductive titanium oxide
First Claim
Patent Images
1. A dentifrice with semiconductive titanium oxide comprising:
- a polishing agent;
a foaming agent;
a binder;
a powder of n-type semiconductor of titanium dioxide powder forming 5 to 10% by weight of said dentifrice and to produce excited photoelectrons in response to incident light and chemically active OH-radicals wherein said titanium dioxide powder has particle diameter smaller than about 0.04 μ
m.
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Abstract
A dentifrice with ordinary components and a powder of n-type semiconductor of titanium dioxide having a purity of at least 99.5% and particle diameter smaller than about 0.04 μm and forming 5 to 10% by weight of said dentifrice, the ordinary components including at least a polishing agent, a foaming agent and a binder.
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Citations
5 Claims
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1. A dentifrice with semiconductive titanium oxide comprising:
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a polishing agent; a foaming agent; a binder; a powder of n-type semiconductor of titanium dioxide powder forming 5 to 10% by weight of said dentifrice and to produce excited photoelectrons in response to incident light and chemically active OH-radicals wherein said titanium dioxide powder has particle diameter smaller than about 0.04 μ
m. - View Dependent Claims (2, 3, 4)
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5. A dentifrice with semiconductive titanium oxide comprising:
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a polishing agent; a foaming agent; a binder; and a powder of n-type semiconductor of a purity at least 99.5% and forming 5 to 10% by weight of said dentifrice.
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Specification
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Current AssigneeShiken Corporation
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Original AssigneeShiken Corporation
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InventorsNakagawa, Yoshinori
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Primary Examiner(s)Foelak, Morton
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Assistant Examiner(s)Nutter, Nathan M.
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Application NumberUS07/223,970Time in Patent Office603 DaysField of Search424/49, 424/50, 524/45, 524/55US Class Current424/49CPC Class CodesA61K 2800/81 Preparation or application ...A61K 8/29 Titanium; Compounds thereofA61Q 11/00 Preparations for care of th...
