PRECIPITATED SILICAS SUITABLE FOR TRANSPARENT DENTRIFICES

An abrasive, amorphous precipitated silica is provided that provides excellent abrasive performance, but also has a relatively high degree of transmittance, and an index of refraction that is sufficiently low to allow it to be a component of a transparent toothpaste composition having a relatively h...

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Bibliographic Details
Main Authors NADKAMI, SUNIL S, RAMAKRISHNAN, RAMANATHAN, KOSTINKO, JOHN, A, KARPE, RAJEEV
Format Patent
LanguageEnglish
French
German
Published 04.01.2012
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Summary:An abrasive, amorphous precipitated silica is provided that provides excellent abrasive performance, but also has a relatively high degree of transmittance, and an index of refraction that is sufficiently low to allow it to be a component of a transparent toothpaste composition having a relatively high concentration of water. The amorphous precipitated silica composition has a refractive index of less than about 1.4387, a light transmittance of greater than about 48% and a Brass Einlehner abrasion value of greater than about 5 mg loss/100,000 rev. A dentifrice having a haze value of less than about 70 may be prepared using this abrasive, amorphous silica.
Bibliography:Application Number: EP20020780598