An electroplatable high-density plastic comprises cerium oxide and at least one of polyphenylene sulfide (PPS) and high-rigidity nylon (MXD6). The polyphenylene sulfide and high-rigidity nylon make the article made of the electroplatable high-density plastic electroplatable, such that a metal layer can be electroplated thereon to give a metallic luster. Simultaneously, the polyphenylene sulfide causes the article to have a metal-like crisp sound when colliding. In addition, the cerium oxide can increase the density of the electroplatable high-density plastic, and confer the articles made of the electroplatable high-density plastic the properties of hard texture, thereby resulting in the advantages of folding and scratch resistance and low hygroscopicity, which not only expands the application range of the articles made of the electroplatable high-density plastic, but also enhances the value thereof.

An electroplatable high-density plastic comprises cerium oxide and at least one of polyphenylene sulfide (PPS) and high-rigidity nylon (MXD6). The polyphenylene sulfide and high-rigidity nylon make the article made of the electroplatable high-density plastic electroplatable, such that a metal layer can be electroplated thereon to give a metallic luster. Simultaneously, the polyphenylene sulfide causes the article to have a metal-like crisp sound when colliding. In addition, the cerium oxide can increase the density of the electroplatable high-density plastic, and confer the articles made of the electroplatable high-density plastic the properties of hard texture, thereby resulting in the advantages of folding and scratch resistance and low hygroscopicity, which not only expands the application range of the articles made of the electroplatable high-density plastic, but also enhances the value thereof.

Provided are a titanium dioxide aqueous dispersion having high dispersibility and little aggregation or coarse particles, and a method for producing the same. The titanium dioxide aqueous dispersion contains titanium dioxide particles having a hydrophobic compound such as a higher fatty acid or a salt thereof on the surface, an aqueous dispersion medium, a nonionic surfactant having an HLB value of 10 or higher, and a basic compound such as an alkanolamine, and the pH is in the 8.5-13 range. The method for producing a titanium dioxide aqueous dispersion has a step for mixing the titanium dioxide particles having a hydrophobic compound on the surface, the aqueous dispersion medium, the nonionic surfactant having an HLB value of 10 or higher, and the basic compound to bring the pH of the aqueous dispersion into the 8.5-13 range.

In one aspect, the present invention is an organic-inorganic hybrid membrane of a cerium oxide and an organic fluorine compound, the organic-inorganic hybrid membrane satisfying the following (a), (b), and (c): (a) the visible-light transmittance is 70% or higher; (b) the UV transmittance at a wavelength of 380 nm is 60% or lower; and (c) the water contact angle of the surface of the organic-inorganic hybrid membrane is 80 or higher. In another aspect, the present invention is an organic-inorganic hybrid membrane of a cerium oxide and an organic fluorine compound, the organic-inorganic hybrid membrane satisfying the following (a), (b), and (c): (a) the visible-light transmittance is 70% or higher; (b) the UV transmittance at a wavelength of 380 nm is 60% or lower; and (c) the water contact angle of the surface of the organic-inorganic hybrid membrane is 90 or higher. The organic fluorine compound may include a fluorine-based resin. Also disclosed are a laminate and an article that include the organic-inorganic hybrid membrane.

A polishing composition for eliminating a protrusion around a laser mark on a laser mark-provided wafer and a wafer polishing method for polishing a protrusion around a laser mark, the polishing composition including a water-soluble compound, a chelating agent, and metal oxide particles, and having a pH of 7 to 12, wherein the water-soluble compound has a hydrophobic moiety and a hydrophilic moiety; the hydrophilic moiety has, on an end or side chain thereof, a hydroxyl group and a hydroxyethyl group, an acyloxy group, a carboxylic acid group, a carboxylic acid salt group, a sulfonic acid group, or a sulfonic acid salt group; and the water-soluble compound is contained in an amount of 5 to 700 ppm in the polishing composition. The metal oxide particles are silica particles, zirconia particles, or ceria particles contained in a colloidal sol and having an average primary particle diameter of 5 to 100 nm.

The present invention relates to an article comprising a substrate at least partially coated with a composition comprising solid in the form of aggregate and (per) fluoropolyether polymer. The invented article shows excellent performance on amphiphobicity and transparency.

A matte synthetic paper is a biaxially oriented polypropylene synthetic paper having a thickness of 25 to 300 m, and includes a printing surface layer as an outermost paper layer. Moreover, by adding a mist flour or a thermoplastic elastomer, the haze and gloss of the printing surface layer can be improved. According to Tappi T480, the printing surface layer having gloss of 15 to 50% is suitable to be printing paper.

A polishing liquid containing: abrasive grains containing at least one selected from the group consisting of cerium oxide and silicon oxide; a nitrogen-containing compound; and water, in which the nitrogen-containing compound contains at least one selected from the group consisting of (I) a compound having an aromatic ring containing one nitrogen atom in the ring and a hydroxyl group, (II) a compound having an aromatic ring containing one nitrogen atom in the ring and a functional group containing a nitrogen atom, (III) a compound having a 6-membered ring containing two nitrogen atoms in the ring, (IV) a compound having a benzene ring and a ring containing a nitrogen atom in the ring, and (V) a compound having a benzene ring to which two or more functional groups containing a nitrogen atom are bonded.

A polishing liquid containing: abrasive grains containing at least one selected from the group consisting of cerium oxide and silicon oxide; a nitrogen-containing compound; and water, in which the nitrogen-containing compound contains at least one selected from the group consisting of (I) a compound having an aromatic ring containing one nitrogen atom in the ring and a hydroxyl group, (II) a compound having an aromatic ring containing one nitrogen atom in the ring and a functional group containing a nitrogen atom, (III) a compound having a 6-membered ring containing two nitrogen atoms in the ring, (IV) a compound having a benzene ring and a ring containing a nitrogen atom in the ring, and (V) a compound having a benzene ring to which two or more functional groups containing a nitrogen atom are bonded.

The present invention relates to an antimicrobial coating of a substrate, the coating being obtained by applying the coating on a surface of the substrate by means of an electrostatic spraying method, and the coating comprising at least one metal oxide and/or at least one metal salt.

Furthermore, the present invention relates to an electrostatic spraying method for coating at least one substrate with an antimicrobial coating.

In addition, the present invention relates to a use of a coating material for producing an antimicrobial coating on a surface of a substrate, with the coating comprising at least one metal oxide and/or at least one metal salt.