C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
C01F 17/00 (2006.01) A61K 8/19 (2006.01) B01D 53/94 (2006.01) B01J 13/00 (2006.01) C01G 1/02 (2006.01) C04B 35/632 (2006.01) C10M 173/02 (2006.01)
Patent
CA 2411749
The invention concerns a colloidal dispersion of a cerium compound or of a cerium compound and at least another element selected among titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, aluminium, gallium, zirconium and rare earths other than cerium. The invention is characterised in that it comprises an amino acid, said acid being at least bound to particles constituting the dispersion. Said dispersion can be used on a substrate as anticorrosive agent, for preparing polymer films, in a cosmetic composition, in catalysis particularly for motor vehicle post-combustion catalysis, for lubrication and in ceramics.
La dispersion colloïdale de l'invention est une dispersion d'un composé de cérium ou d'un composé de cérium et d'au moins un autre élément choisi parmi le titane, le vanadium, le chrome, le manganèse, le fer, le cobalt, le nickel, le cuivre, le zinc, l'aluminium, le gallium, le zirconium et les terres rares autres que le cérium, et elle est caractérisée en ce qu'elle comprend un acide aminé, cet acide étant au moins en partie lié aux particules constitutives de la dispersion. Cette dispersion peut être utilisée sur un substrat comme agent anticorrosion, dans la préparation de films de polymères, dans une composition cosmétique, en catalyse notamment pour post combustion automobile, en lubrification ou dans les céramiques.
Rhodia Terres Rares
Robic
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