MICROSPHERES COMPRISING POLYDISPERSE POLYMER NANOSPHERES AND POROUS METAL OXIDE MICROSPHERES

Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprisi...

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Bibliographische Detailangaben
Hauptverfasser:	HWANG Victoria, DARJI Rupa Hiremath, MANOHARAN Vinothan N, STEPHENSON Anna B, NEWHOUSE James Paul
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	COLOUR PRINTING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LINING MACHINES MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS STAMPS TRANSPORTING TYPEWRITERS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprising polymer nanospheres and metal oxide; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses. Las microesferas de óxido metálico poroso se preparan mediante un proceso que comprende formar una solución líquida o dispersión de nanopartículas poliméricas polidispersas y un óxido metálico; formar gotas líquidas de la solución o dispersión; secar las gotas líquidas para proporcionar microesferas de plantilla de polímero que comprendan nanoesferas de polímero y óxido de metal; y eliminar las nanoesferas poliméricas de las microesferas de plantilla para proporcionar las microesferas de óxido de metal poroso. Las microesferas porosas exhiben colores saturados y son adecuadas como colorantes para una variedad de usos finales.