C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
C01F 11/18 (2006.01) A61K 8/19 (2006.01) A61K 8/20 (2006.01) A61K 8/33 (2006.01) A61Q 11/00 (2006.01)
Patent
CA 2414440
An aqueous suspension of particulate calcium carbonate for use in the manufacture of toothpaste compositions includes in addition to the calcium carbonate one or more dispersing agents and one or more preservative agents and wherein the aqueous medium of the suspension has been treated so that the biological contamination of the suspension is not greater than the maximum allowable levels indicated by the US Food and Drugs Administration (FDA). The calcium carbonate may comprise a precipitated and/or ground calcium carbonate. The suspension may have a solids content of from 50 % to 99.5 % by weight. The suspension may be flowable and pumpable.
Une suspension aqueuse de carbonate de calcium particulaire utilisée dans la fabrication de compositions de dentifrice renferme, en sus du carbonate de calcium, au moins un agent de dispersion et au moins un conservateur. Le milieu aqueux de la suspension a été traité de manière à ce que la contamination biologique de la suspension n'est pas supérieure aux niveaux maximums autorisés indiqués par l'administration des aliments et des drogues des Etats-Unis (FDA). Le carbonate de calcium peut renfermer un carbonate de calcium moulu et/ou précipité. Ladite suspension peut aussi présenter un contenu de matières solides compris entre 50 % et 99,5 % en poids. Cette suspension peut être liquide ou pompable.
Andrade Gustavo P. N.
Coelho Antonio O.
Renha Luiz Ricardo B. S.
Valente Carlos A. R.
Andrade Gustavo P. N.
Coelho Antonio O.
Goudreau Gage Dubuc
Quimica Industrial Barra Do Pirai Ltda.
Renha Luiz Ricardo B. S.
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