A water dispersion of gel particles, in which the gel particles having a polymerizable group, having a three-dimensional crosslinked structure including at least one bond selected from a urethane bond and a urea bond, and including at least a photopolymerization initiator and a resin are dispersed in water, a method of producing the water dispersion, and an image forming method using the water dispersion.

Disclosed is an electrical steel sheet with an insulating coating formed by applying a surface-treatment agent to at least one surface of the electrical steel sheet and drying the surface-treatment agent, wherein the surface-treatment agent contains: certain trialkoxysilane and/or dialkoxysilane (A); a silane coupling agent (B) that does not contain a polymerizable unsaturated group in its structure; plate-like silica (C); a polymerizable unsaturated-group-containing compound (D); and water, within a range satisfying the following conditions (1) to (3): (1) a mass ratio (A/B) of (A) to (B) is from 0.05 to 1.00; (2) a content of (C) is 2 mass % to 30 mass % with respect to a total mass of (A) to (D) in the surface-treatment agent; and (3) a content of (D) is 2 mass % to 18 mass % with respect to the total mass of (A) to (D) in the surface-treatment agent.

Disclosed is an electrical steel sheet with an insulating coating formed by applying a surface-treatment agent to at least one surface of the electrical steel sheet and drying the surface-treatment agent, wherein the surface-treatment agent contains: certain trialkoxysilane and/or dialkoxysilane (A); a silane coupling agent (B) that does not contain a polymerizable unsaturated group in its structure; plate-like silica (C); a polymerizable unsaturated-group-containing compound (D); and water, within a range satisfying the following conditions (1) to (3): (1) a mass ratio (A/B) of (A) to (B) is from 0.05 to 1.00; (2) a content of (C) is 2 mass % to 30 mass % with respect to a total mass of (A) to (D) in the surface-treatment agent; and (3) a content of (D) is 2 mass % to 18 mass % with respect to the total mass of (A) to (D) in the surface-treatment agent.

The present disclosure provides photo-polymerizable components, photo-curable resins comprising one or more of such monomers, as well as polymeric materials formed from the photo-curable resins. Further provided herein are methods of producing the compositions and using the same for the fabrication of medical devices, such as orthodontic appliances.

The dental restorative material of the present invention is a dental restorative material that contains a resin matrix and an inorganic filler in an amount of 25 to 1,000 parts by mass per 100 parts by mass of the resin matrix, and in the dental restorative material, the resin matrix contains a polyurethane resin, and the inorganic filler has an average particle diameter of 0.001 to 100 μm. According to the present invention, a dental restorative material that has a high bending strength and a high surface hardness, and is excellent in transparency and cutting workability, and a resin material for dental cutting work containing the same can be provided.

A photo-curable resin composition for three-dimensional molding which does not require a support material is provided and can be cured by light irradiation while being extruded from a nozzle through a simple FDM method to be stacked and molded in a short period of time. The photo-curable resin composition has a viscosity at 20° C. of 0.2 Pa.Math.s or more and a viscosity at 150° C. of 1000 Pa.Math.s or less.

Provided herein is an additive manufacturing method of making a three-dimensional object comprising polyurea, comprising: (a) dispensing a one part (1K) dual cure resin into a stereolithography apparatus, the resin comprising or consisting essentially of a photoinitiator, a reactive blocked polyisocyanate, and optionally a polyepoxide, the reactive blocked polyisocyanate comprising the reaction product of a polyisocyanate and an amine or hydroxyl (meth)acrylate or (meth)acrylamide monomer blocking agent; (b) additively manufacturing from said resin an intermediate object comprising the light polymerization product of said reactive blocked polyisocyanate; (c) optionally cleaning said intermediate object; and (d) reacting said polymerization product in said intermediate with water to generate polyamine in situ that sequentially reacts with the remainder of the polymerization product to form urea linkages and hereby produce a three-dimensional object comprising polyurea. One part (1K) dual cure resins useful for the method are also provided.

A resin composition, wherein a resin component in the resin composition has a group represented by the following General Formula (11), (21) or (31) and a urethane bond:

##STR00001##

(in the formulae, Z.sup.1 is an alkyl group, and one or more hydrogen atoms in the alkyl group may be substituted with a cyano group, a carboxy group or a methoxycarbonyl group, and two or more of the substituents may be the same as or different from each other; Z.sup.2 is an alkyl group; Z.sup.3 is an aryl group; R.sup.4 is a hydrogen atom or a halogen atom; and the bond with the symbol * is formed with the bonding destination of the group represented by General Formula (11), (21) or (31)).

Provided herein are methods of making (meth)acrylate blocked polyurethanes with zirconium catalysts, dual cure resins containing (meth)acrylate blocked polyurethanes and zirconium catalysts, methods of using the same in additive manufacturing, and products made therefrom.

The present invention relates to a method of manufacturing a quantum-dot film having encapsulated quantum dots dispersed therein, in which quantum dots are uniformly dispersed in a matrix resin to thus increase quantum yield and in which deterioration of the quantum dots can be prevented through encapsulation, a quantum-dot film manufactured thereby, and a wavelength conversion sheet and a display including the same.