SPHERICAL SILICA PARTICLE SIZE FOR RDA CONTROL

SPHERICAL SILICA PARTICLE SIZE FOR RDA CONTROL

Silica particles having a d50 median particle size of at least 6 μm, a ratio of (d90−d10)/d50 from 1.1 to 2.4, a RDA at 20 wt. % 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 con...

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Bibliographische Detailangaben
Hauptverfasser: GALLIS, Karl, W, HAGAR, William, J, NASSIVERA, Terry, W
Format: Patent
Sprache:eng
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Zusammenfassung:Silica particles having a d50 median particle size of at least 6 μm, a ratio of (d90−d10)/d50 from 1.1 to 2.4, a RDA at 20 wt. % 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.