SPHERICAL SILICA PARTICLE SIZE FOR RDA CONTROL

Silica particles having ad50 median particle size of at least 6æm, aratio of (d90-d10)/d50 from 1.1 to 2.4, a RDA at 20 wt. pcnt loading from 40 to 200, and a sphericity factor (S80) of at least 0.9,are disclosed, as well as methods for making these silica particles, and dentifrice compositions cont...

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Bibliographische Detailangaben
Hauptverfasser: NASSIVERA, Terry W, HAGAR, William J, GALLIS, Karl W
Format: Patent
Sprache:eng
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Zusammenfassung:Silica particles having ad50 median particle size of at least 6æm, aratio of (d90-d10)/d50 from 1.1 to 2.4, a RDA at 20 wt. pcnt loading from 40 to 200, and a sphericity factor (S80) of at least 0.9,are disclosed, as well as methods for making these silica particles, and dentifrice compositions containing the silica particles.