C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/36 (2006.01) C08K 9/02 (2006.01) C09D 7/12 (2006.01) D21H 17/67 (2006.01) D21H 19/38 (2006.01)
Patent
CA 2277058
The invention concerns a novel titania pigment useful for external painting. This pigment has a titania nucleus coated successively with a layer of zirconium hydroxide or oxyhydroxide, then a layer of titanium hydroxide or oxyhydroxide, then of a layer of co-precipitated phosphate and silica, and finally a layer of aluminium oxyhydroxide. The invention also concerns a method for preparing said pigment and its use in paints, plastics and laminated paper.
L'invention concerne un nouveau pigment de dioxyde de titane utilisable dans les compositions de peinture pour extérieurs. Ce pigment présente un noyau de dioxyde de titane recouvert successivement d'une couche d'hydroxyde ou d'oxyhydroxyde de zirconium, puis d'une couche d'hydroxyde ou d'oxyhydroxyde de titane, puis d'une couche d'un coprécipité de phosphate et de silice et enfin d'une couche d'oxyhydroxyde d'aluminium. L'invention concerne également un procédé de préparation de ce pigment et son utilisation dans les peintures, les plastiques et les lamifiés de papier.
Guez Anny
Steiner Caroline
Dimock Stratton Clarizio Llp
Millennium Inorganic Chemicals S.a.
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