INORGANIC MATERIAL COMPOSITION AND UTILITIES THEREOF

• Main Authors: PRESTON, Janet, GITTINS, David, FINDLAY, Andrew, SINGH, Virendra, SHURLING, Dickey, PAYNTER, Christopher, WICKSZ, Douglas
• Format: Patent
• Language: English; French
• Published: 26.10.2017
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; CORRECTING FLUIDS; DYES; FILLING PASTES; IMPREGNATING OR COATING OF PAPER; INKS; INORGANIC CHEMISTRY; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS

Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with t he inorganic particles are provided. The particulate composition satisfies at least one of the following properties : a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2 % wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided. La présente invention concerne des compositions particulaires inorganiques contenant des particules inorganiques associées à un copolymère d'un monomère hydrophile et d'un monomère hydrophobe associé aux particules inorganiques. La composition particulaire satisfait au moins l'une des propriétés suivantes: une surface spécifique BET des particules inorganiques est supérieure à 8 m2/g, la valeur Hegman des particules inorganiques est inférieure ou égale à 75 microns, et une taux de perte d'eau de la composition lors d'un séchage à partir d'un niveau d'humidité supérieur à 2% en poids est au moins de 30% supérieur à celui d'une composition contenant un polymère de polyacrylate à une teneur correspondante associé aux particules. L'invention concerne également un procédé de préparation de la composition et des formulations destinées aux encres, peintures, revêtements et articles polymères chargés contenant la composition particulaire inorganique.