REDUCED ABRASION OF TITANIUM DIOXIDE PIGMENTS PRODUCED FROM THE CHLORIDE PROCESS

Disclosed herein are pigments comprising mostly rutile TiO2, wherein the mostly rutile TiO2 consists essentially of low abrasion TiO2 particles produced by introducing a metal halide into the chloride process. Further disclosed are ink, can coatings, fibers, papers, and plastics comprising the pigme...

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Bibliographische Detailangaben
Hauptverfasser:	HOFMANN, MICHAEL, ANDREW, SUBRAMANIAN, NARAYANAN, SANKARA, KOURTAKIS, KOSTANTINOS, MUSICK, CHARLES, DAVID, REID, JR., AUSTIN, HENRY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CORRECTING FLUIDS DYES FILLING PASTES INKS INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PREPARATION OF CARBON BLACK TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Disclosed herein are pigments comprising mostly rutile TiO2, wherein the mostly rutile TiO2 consists essentially of low abrasion TiO2 particles produced by introducing a metal halide into the chloride process. Further disclosed are ink, can coatings, fibers, papers, and plastics comprising the pigment. Also disclosed herein are pigments comprising the low abrasion TiO2 pigments comprising TiO2 particles which have been further heat treated at a temperature of at least about 800° C in an oxidizing atmosphere for a time period of at least about 1 hour. L'invention concerne des pigments composés principalement de TiO2, lequel est constitué pour l'essentiel de particules de TiO2 à faible abrasion obtenues par introduction d'un halogénure de métal dans le processus de chloration. L'invention concerne également une encre, des revêtements de récipient, des fibres, des papiers et des plastiques comprenant le pigment. De plus, l'invention concerne des pigments contenant les particules de TiO2 à faible abrasion qui ont en outre été traitées thermiquement à une température d'au moins 800° C dans une atmosphère oxydante pendant un laps de temps d'au moins une heure.