Laminate paper treated with inorganic pigments having improved dispersability

The disclosure provides a laminate paper comprising a treated inorganic core particle, in particular treated titanium dioxide (TiO2) particle, having improved dispersability, prepared by a process comprising: (a) heating a slurry comprising porous silica treated inorganic core particle and water at...

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Bibliographische Detailangaben
1. Verfasser:	DIEBOLD MICHAEL PATRICK
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON DYES IMPREGNATING OR COATING OF PAPER INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NANOTECHNOLOGY NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES PREPARATION OF CARBON BLACK PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The disclosure provides a laminate paper comprising a treated inorganic core particle, in particular treated titanium dioxide (TiO2) particle, having improved dispersability, prepared by a process comprising: (a) heating a slurry comprising porous silica treated inorganic core particle and water at a temperature of at least about 90° C.; and (b) adding a soluble alumina source to the slurry from step (a) while maintaining the pH at about 8.0 to 9.5 to form an alumina treatment on the porous silica treated inorganic core particle; wherein the treated inorganic core particle does not comprise dense silica or alumina treatments, and has silica present in the amount of about 7% to about 14% and alumina present in the amount of about 4.0% to about 8.0%; and wherein the particle to particle surface treatments are substantially homogeneous.