SPHERICAL STANNOUS COMPATIBLE SILICA PARTICLES FOR REDUCED RDA

SPHERICAL STANNOUS COMPATIBLE SILICA PARTICLES FOR REDUCED RDA

Silica particles having a d50 median particle size from 8 to 20 μm, a sphericity factor (S80) of at least 0.9, a BET surface area from 0.1 to 8 m2/g, a total mercury intrusion pore volume from 0.35 to 0.8 cc/g, and a loss on ignition from 3 to 7 wt. %, are disclosed, as well as methods for making th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DOLAN, Lawrence Edward, NASSIVERA, Terry W, HAGAR, William J, MIDHA, Sanjeev, GALLIS, Karl W, SCHNEIDERMAN, Eva
Format: Patent
Sprache:eng ; hun
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
HUMAN NECESSITIES
HYGIENE
INORGANIC CHEMISTRY
MEDICAL OR VETERINARY SCIENCE
METALLURGY
NON-METALLIC ELEMENTS
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Beschreibung
Zusammenfassung:Silica particles having a d50 median particle size from 8 to 20 μm, a sphericity factor (S80) of at least 0.9, a BET surface area from 0.1 to 8 m2/g, a total mercury intrusion pore volume from 0.35 to 0.8 cc/g, and a loss on ignition from 3 to 7 wt. %, are disclosed, as well as methods for making these silica particles, and dentifrice compositions containing the silica particles.