C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/36 (2006.01) C09C 3/00 (2006.01)
Patent
CA 2197256
The invention is an improved process for enhancing the dispersion properties of treated titanium dioxide pigment into a wide variety of organic and other systems including paint and polyethylene. The invention is useful for pigments made by either of the two process types of titanium dioxide, i.e. sulfate or chloride. The dispersion properties of coated titanium dioxide pigment can be improved considerably if the milled dry pigment particles are subjected before being aftertreated, to a separate air classifying operation.
Méthode pour améliorer les propriétés de dispersion d'un pigment de dioxyde de titane traité, dans une vaste gamme de systèmes organiques et autres, y compris les peintures et le polyéthylène. L'invention est utile pour les pigments obtenus à partir de n'importe lequel des deux types de dioxyde de titane, sulfate ou chlorure. Les propriétés de dispersion des pigments de dioxyde de titane garnis d'un revêtement peuvent être améliorés considérablement si les particules de pigments sèches et broyées sont soumises, avant le post-traitement, à un procédé séparé de classification par air.
Blumel Siegfried
Elfenthal Lothar
Luginsland Hans-Hermann
Tiedemann Peter
Kronos Inc.
Kronos International Inc.
Sim & Mcburney
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