TRANSPARENT SILICA GEL/PRECIPITATED SILICA COMPOSITE MATERIALS FOR DENTIFRICES
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
May 20, 2009
filing date -
Jun 3, 2008
priority date (Note) -
Abandoned
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Abstract
A gel/precipitate silica composite for use in a dentifrice composition has a maximum light transmission of at least 25% within a refractive index range of from about 1.432 to about 1.455; a relative flavor availability as compared to silica sand of at least 50%; a CTAB of less than about 40; and, when incorporated into a dentifrice composition in an amount of 20% by weight, said dentifrice has a RDA (Relative Dentin Abrasion) value of at most 130; a PCR (Pellicle Cleaning Ratio):RDA ratio of from 0.7 to 1.3; and a haze value after 24 hours of less than about 50%.
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