Teeth cleaning composition with semiconductive titanium oxide
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United States of America Patent
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Mar 20, 1990
Issued Date -
N/A
app pub date -
Jul 25, 1988
filing date -
Jun 30, 1983
priority date (Note) -
Expired
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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 .mu.m 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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