A liquid polymerizable composition including an anhydride derivative monomer with mineral nanoparticles homogeneously dispersed therein, as well as its use for the preparation of a transparent polymeric material having a high refractive index and its use in the optical field.

A semi-organic insulation coating includes an inorganic component and an organic resin, a Zr compound and an Si compound contains a plate-like silica as an inorganic component and are included in a ratio in a dry coating of 20 to 70 mass % of Zr compound (converted to ZrO.sub.2) and 10 to 50 mass % of Si compound containing plate-like silica (converted to SiO.sub.2), and the remainder is substantially an organic resin, whereby a magnetic steel sheet with a semi-organic insulation coating has no deterioration of corrosion resistance and water resistance without containing a chromium compound and being excellent in powdering resistance, scratch resistance, sticking resistance, TIG weldability, punchability and coating appearance.

The present invention relates to an insulating wire and, more particularly, to an insulating wire having partial discharge resistance that exhibits excellent partial discharge resistance and high partial discharge inception voltage and also excellences in the adhesion between the conductor and the insulation layer and the flexibility of the insulation layer, which insulating wire can be prepared by a simple process at a low production cost.

A hydrophilic surface treatment agent for an aluminum-containing metallic heat exchanger, which is obtained by mixing: a water-soluble resin (A) having at least one or more functional groups of an amide group, a hydroxyl group, and a carboxyl group, or a water-soluble resin (A) including, in a skeleton thereof, an amide linkage; colloidal silica (B); organo alkoxy silane and/or a hydrolysate thereof (C); a cross-linking agent (D) capable of forming cross-linkage with the water-soluble resin (A); and water (E), wherein the ratio {(B)+(C)}/{(A)+(B)+(C)+(D)} is 0.1 to 0.5 in terms of solid content ratio (mass ratio), and the ratio (C)/(B) is 0.5 to 4.0 in terms of solid content ratio (mass ratio).

Disclosed is an organic-inorganic composite thermal insulation medium, which is a nanoparticle having a structure of (M.sub.x-R.sub.n) WO.sub.y, where M represents a doped metal element, R represents an organic complex group, 0.3x0.7, 2<y<4, n represents a polymerization degree of the organic complex group, and n10; M is selected from the group consisting of an alkali metal, an alkali earth metal, a transition metal, and a rare earth metal; and R is selected from the group consisting of pyrrole and a derivative thereof, aniline and a derivative thereof, and thiophene and a derivative thereof. In addition, also disclosed is a method for preparing the thermal insulation medium.

Near-infrared absorbing particles include intergrowth tungsten bronze crystals in which tungsten oxide and hexagonal tungsten bronze coexist in a band pattern. A Cs/W ratio by mole of cesium (Cs) and tungsten (W) contained in the near-infrared absorbing particles is 0.01 or more and less than 0.20. An O/W ratio by mole of oxygen (O) and tungsten (W) contained in the near-infrared absorbing particles is 2.6 or more and less than 2.99.

A surface treatment agent capable of forming a film that has excellent corrosion resistance and hydrophilicity with suppressed odor is provided. A surface treatment agent includes: one or more selected from water-soluble inorganic oxides and salts thereof (A); one or more selected from hydrolysates and condensates of organoalkoxysilane (B); water-soluble resin (C); ether compound (D); and water and/or water-miscible solvent; wherein assuming a total mass of the one or more selected from water-soluble inorganic oxides and salts thereof (A), a total mass of the one or more selected from hydrolysates and condensates of organoalkoxysilane (B), a mass of the water-soluble resin (C), and a mass of the ether compound (D) are M.sub.A, M.sub.B, M.sub.C and M.sub.D, respectively, (M.sub.A+M.sub.B)/(M.sub.A+M.sub.B+M.sub.C+M.sub.D)=0.01 to 0.7 is satisfied.

The invention provides an active energy ray-curable resin composition including inorganic fine particles (A), a compound (B) having at least one (meth)acryloyl group in the molecule, a first photoinitiator (C-1), and a second photopolymerization initiator (C-2) having a different structure from the first photopolymerization initiator (C-1), a cured product, a laminate, and an article. The active energy ray-curable resin composition has excellent substrate adhesion and storage stability and also has, when formed into a cured product, excellent scratch resistance and chemical resistance.

A magnet wire is configured for transmitting and distributing electrical energy. A wire includes a conductor and a coaxially arranged coating surrounding the conductor. The coating is composed of a polymeric resin and a thermally conductive inorganic filler. The coating surrounding the conductor may be configured in a matrix and/or array, with alternating layers. Alternatively, the coating is formed as a single layer. Placing the coating on the conductor substantially enhances the mechanical, chemical, dielectric, and thermal conductivity properties of the cable, primarily due to the interaction between the quantity, proportion, and distribution of the components comprising the coating.

Coating compositions comprising a polymer binder and closed-cell metal oxide particles are described herein.