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.

A method of producing a hydrophobic porous alumina by: i) providing a slurry comprising an alumina compound, the slurry having a pH equal to or greater than 7; ii) adding an organic composition comprising carboxylic acids with alkyl hydrocarbon chains having a carbon length less than 14 to the slurry to form an acidic modified slurry; the acidic modified slurry having a pH of between 3 and less than 7; iii) hydrothermally aging the acidic modified slurry to form a hydrothermally aged slurry; and iv) drying the hydrothermally aged slurry.

A method of producing glass-coated aluminum nitride particles which includes a first step of mixing, while applying a shearing force by a mechano-chemical method, a mixture of aluminum nitride particles, and a composition powder containing a glass component, a second step of heat treating the mixture at a temperature of the glass transition temperature of the glass component or more, and 2000° C. or less, and a third step of crushing the heat treated product.

A method of producing glass-coated aluminum nitride particles which includes a first step of mixing, while applying a shearing force by a mechano-chemical method, a mixture of aluminum nitride particles, and a composition powder containing a glass component, a second step of heat treating the mixture at a temperature of the glass transition temperature of the glass component or more, and 2000° C. or less, and a third step of crushing the heat treated product.

A filler for resinous composition is contained and used in resinous composition constituting electronic packaging material for electronic device, and includes: a filler ingredient including a crystalline siliceous material with a crystal structure made of at least one member selected from the group consisting of type FAU, type FER, type LTA, type MFI and type CHA, and/or type MWW, wherein: the filler ingredient is free of any activity when evaluated by an “NH3-TPD” method; and includes the crystalline siliceous material in an amount falling in a range allowing the filler ingredient to exhibit a negative thermal expansion coefficient. The filler ingredient may further be free of a surface in which silver, copper, zinc, mercury, tin, lead, bismuth, cadmium, chromium, cobalt and nickel are exposed.

The present invention discloses the morphology of hollow, double-shelled submicrometer particles generated through a rapid aerosol-based process. The inner shell is an essentially hydrophobic carbon layer of nanoscale dimension (5-20 nm), and the outer shell is a hydrophilic silica layer of approximately 5-40 nm, with the shell thickness being a function of the particle size. The particles are synthesized by exploiting concepts of salt bridging to lock in a surfactant (CTAB) and carbon precursors together with iron species in the interior of a droplet. This deliberate negation of surfactant templating allows a silica shell to form extremely rapidly, sealing in the organic species in the particle interior. Subsequent pyrolysis results in a buildup of internal pressure, forcing carbonaceous species against the silica wall to form an inner shell of carbon. The incorporation of magnetic iron oxide into the shells opens up applications in external stimuli-responsive nanomaterials.

Modified copper chromite spinel pigments exhibit lower coefficients of thermal expansion than unmodified structures. Three methods exist to modify the pigments: (1) the incorporation of secondary modifiers into the pigment core composition, (2) control of the pigment firing profile, including both the temperature and the soak time, and (3) control of the pigment core composition.

Set forth herein are processes for making lithium-stuffed garnet oxides (e.g., Li.sub.7La.sub.3Zr.sub.2O.sub.12, also known as LLZO) that have passivated surfaces comprising a fluorinate and/or an oxyfluorinate species. These surfaces resist the formation of oxides, carbonates, hydroxides, peroxides, and organics that spontaneously form on LLZO surfaces under ambient conditions. Also set forth herein are new materials made by these processes.

A silicate-coated body contains: a mica particle; a first silicate coating at least part of the mica particle; and an ionic organic colorant adsorbed to the first silicate. The ionic organic colorant includes at least one selected from the group consisting of amaranth, new coccine, phloxine B, rose bengal, acid red, fast green, indigo carmine, lithol rubine B, and lithol rubine BCA.

A filler for a coating including a powder formed from igneous rock with substantially no free silica and a Mohs hardness of at least 5 and a controlled maximum particle size of less than 6 microns, wherein said particles have a surface fluid layer of a lubricative fluid to drastically increase the wettability of said powder and a method of producing the same.