C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/02 (2006.01) A61K 7/18 (1995.01) A61K 7/16 (1995.01)
Patent
CA 2251640
A toothpaste composition comprising at least one decay preventing agent, with a fluorine-containing compound base, and at least one silica, is characterized in that the silica is constituted of particles containing a dense active silica shell and a calcium carbonate core. Use, as an abrasive or additive agent in toothpaste compositions, of composite particles containing a calcium carbonate core and a dense active silica shell, the said shell containing optionally in an adsorbed state a Ca?2+¿ ion stabilising agent. Composite particles constituted of a calcium carbonate core and a dense active silica shell containing in adsorbed state at least one Ca?2+¿ ion stabilising agent.
Composition dentifrice comprenant au moins un agent pour la prévention des caries, à base d'un composé fluoré, et au moins une silice, composition caractérisée en ce que la silice est constituée de particules comprenant une écorce de silice active dense et un coeur de carbonate de calcium. Utilisation, comme agent abrasif ou additif dans les compositions dentifrices, de particules composites comprenant un coeur de carbonate de calcium et une écorce de silice active dense, ladite écorce contenant éventuellement à l'état adsorbé un agent stabilisant des ions Ca2+. Particules composites constituées d'un coeur de carbonate de calcium et d'une écorce de silice active dense contenant à l'état adsorbé au moins un agent stabilisant des ions Ca2+.
Amiche Frederic
Dromard Adrien
Rhodia Chimie
Robic
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