The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with a polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity.

Provided are: surface-coated inorganic particles which can have improved dispersibility in organic solvents and enable the function and performance of the original inorganic particles to be sufficiently exhibited; and a method for producing the surface-coated inorganic particles. Also provided are an organic-solvent dispersion and a coating film which are excellent in terms of transparency and refraction property. The surfaces of inorganic particles, e.g., titanium oxide, are coated with a product of reaction between an aminated silicate compound, e.g., aminopropyltrimethoxysilane, and/or a product of the hydrolysis thereof and a compound having one ?,?-unsaturated carbonyl group in the molecule, e.g., an alkoxypolyalkylene glycol (meth)acrylate.

A coating film-forming composition includes a hydrolysis-condensation product of a hydrolyzable silane and fine inorganic particles subjected to a special dispersion treatment, that can be formed into a highly heat-resistant, highly transparent coating film capable of exhibiting a high refractive index and having a large thickness and excellent storage stability as a coating composition; and a process for producing the coating film-forming composition.

Provided are a protective negative electrode for a lithium metal battery, which includes a lithium metal negative electrode, and a protective film disposed on the lithium metal negative electrode and including a filler bound with a siloxane functional group and a polymer; and a lithium metal battery including the same.

The present disclosure relates to titanium dioxide particles designed to enhance reflection of both IR and visible wavelengths, or energy, and their use in forming cool, fully opaque polymeric articles prepared by melt processible resin. Such articles, made from melt processible thermoplastic and/or thermoset resin have enhanced outdoor utility because they inhibit damage caused by the sun as a result of the article including titanium dioxide particles of the present invention exhibiting low photo-activity properties.

In a titanium oxide powder of this invention, a ratio (I.sub.A/I.sub.R) of a peak intensity (I.sub.A) of anatase-type crystals to a peak intensity (I.sub.R) of rutile-type crystals as measured by X-ray diffractometry is 0.1 or less; particles contained in the powder have an average short-axis length from 10 to 50 nm and an average aspect ratio from 1 to 3; a ratio (A.sub.450/A.sub.320) of an absorbance A.sub.450 at a wavelength of 450 nm to an absorbance A.sub.320 at a wavelength of 320 nm is from 0.015 to 0.5; and the powder contains a nitrogen atom and a peak derived from the nitrogen atom is observed from 395 to 402 eV in ESCA (Electron Spectroscopy for Chemical Analysis) measurement. A titanium oxide powder is thus provided that contains rutile-type crystals as a main component and has an excellent UVA shielding effect, high safety for the human body, and good color tone.

Provided is an ink containing at least: an inorganic pigment having a surface hydrophobicity; resin particles; and water.

A titanium oxide particle includes a metal compound having a metal atom and a carbon atom and being bonded to a surface through an oxygen atom. The titanium oxide particle has absorption at a wavelength of 450 nm and a wavelength of 750 nm in a visible absorption spectrum and satisfies 0.03A0.3 where A represents a value of {(peak intensity of CO bond+peak intensity of CO bond)/(peak intensity of CC bond+peak intensity of CC bond)} in an XPS spectrum of a carbon 1s orbital.

The present invention relates to a fluorescent particulate material, formed from particles of an oxide of an element M, some of the atoms M of which bear a cationic group of formula (I) all or some of said cationic radicals of formula (I) being combined ionically with an anionic form of an organic compound A, which is fluorescent in the visible region, said anionic form of an organic compound A bearing at least one sulfonate group and/or at least one carboxylate group.

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There is provided an electrostatic ink composition comprising chargeable particles comprising white pigment particles having a basic species on their surface; and a charge director; wherein the white pigment particles are present in an amount of at least 75 wt % based on the total weight of the non-volatile solids in the electrostatic ink composition. A method of manufacturing an electrostatic ink composition and a printed medium are also described.