Abstract: An object of the present invention is to obtain a coating composition capable of providing a coating film that has hydrophobilicy and is resistant to adhesion of water stain dirt. The present invention provides a composition for a coating material, including a siloxane group-containing polymer (A) and a crosslinking agent (B), wherein the siloxane group-containing polymer (A) is a block copolymer including an A block and a B block, contains, in the A block, at least a structural unit derived from a siloxane group-containing vinyl monomer (a), and contains, in the B block, a structural unit derived from a hydroxyl group-containing vinyl monomer (b) and, as necessary, a structural unit derived from another vinyl monomer (c) copolymerizable with the vinyl monomers (a) and (b), the siloxane group-containing polymer (A) is a copolymer having a molecular weight distribution (Mw/Mn) of 2.

Abstract: A coating composition including a coating film-forming resin and a pigment, wherein a chroma C*?15 in an L*C*h color system based on a spectral reflectance of reflected light R?15 having received, at an angle of ?15 degrees with respect to specular light, incident light I45 striking at an angle of 45 degrees with respect to a surface of a cured coating film of the coating composition and a chroma C*15 in an L*C*h color system based on a spectral reflectance of reflected light R15 having received the incident light I45 at an angle of 15 degrees with respect to the specular light satisfy the relationships of: C - 1 ? 5 * > C 1 ? 5 * > 10 , and ? C - 1 ? 5 * - C 1 ? 5 * > 2 ? 0 , and wherein a chroma C*45 in an L*C*h color system based on a spectral reflectance of reflected light R45 having received the incident light I45 at an angle of 45 degrees with respect to the specular light is 10 or less.

Abstract: Provided is an antifouling coating composition comprising a silicon atom-containing resin. The silicon atom-containing resin includes a constituent unit (A) derived from a monomer (a) having at least one kind of silicon atom-containing group selected from the group consisting of a group represented by a formula (I), a group represented by a formula (II), a group represented by a formula (III), and a group represented by a formula (IV); and a constituent unit (B) derived from a monomer (b) which is a polyfunctional (meth)acrylic acid ester having two or more (meth)acryloyl groups.

Abstract: Provided is a clear coating composition which affords a coating film having superior resistance to color shift and is superior in coating workability while having a high solid content. A clear coating composition including a hydroxy group-containing acrylic resin (A), a polyisocyanate compound (B), and an organic solvent (C), wherein the hydroxy group-containing acrylic resin (A) includes a primary hydroxy group-containing acrylic resin (A1) and a secondary hydroxy group-containing acrylic resin (A2), the primary hydroxy group-containing acrylic resin (A1) has a weight average molecular weight of 6000 or less, the secondary hydroxy group-containing acrylic resin (A2) has a weight average molecular weight of 6000 or more, the organic solvent (C) includes a specific primary alcohol and/or secondary alcohol, and the clear coating composition has a solid concentration of 55% by mass or more at a time of coating.

Abstract: A method for forming a multilayer coating film, comprising the following steps (1) to (5): (1) producing a first aqueous base coating composition comprising combining an acrylic resin dispersion (A) having a core/shell structure and a melamine resin (B), (2) applying the first aqueous base coating composition onto a surface of an object to form an uncured first aqueous base coating film, (3) applying a second aqueous base coating composition onto the uncured first aqueous base coating film to form an uncured second aqueous base coating film, (4) applying a clear coating composition onto the uncured second aqueous base coating film to form an uncured clear coating film, and (5) heat-curing the uncured first aqueous base coating film, the uncured second aqueous base coating film, and the uncured clear coating film obtained in steps (2) to (4) at a time to form the multilayer coating film.

Abstract: An object of the present invention is to provide a laminated member for decoration that can be molded into a complicated shape and has a superior hardcoating property.

Abstract: Provided is a two-pack type clear coating composition capable of forming a clear coating film that is easily sanded while being superior in scratch resistance. A two-pack type clear coating composition including a base agent (A) and a curing agent (B), wherein the base agent (A) includes a first hydroxy group-containing acrylic resin having a hydroxyl value of 120 mg KOH/g or less and a second hydroxy group-containing acrylic resin having a hydroxyl value of more than 120 mg KOH/g, the curing agent (B) includes an isocyanate compound, and a coefficient of dynamic friction of a surface of a coating film obtained from the two-pack type clear coating composition is 0.35 or more under a load of 50 g.

Abstract: Provided is a clear coating composition from which a coating film superior in color shift and appearance can be obtained. A clear coating composition comprising: a hydroxy group-containing acrylic resin (A); a polyisocyanate compound (B); and an organic solvent (C), wherein the hydroxy group-containing acrylic resin (A) includes a primary hydroxy group-containing acrylic resin (A1) and a secondary hydroxy group-containing acrylic resin (A2); the primary hydroxy group-containing acrylic resin (A1) has a weight average molecular weight of 6,000 or less; the secondary hydroxy group-containing acrylic resin (A2) has a weight average molecular weight of 6,000 or more; the organic solvent (C) includes a ketone compound having 7 or more carbon atoms (C1); and the clear coating composition has a solid concentration at a time of application of 55% by mass or more.

Abstract: Provided is a clear coating composition having a sufficiently low viscosity even being highly solid from which a coating film having a good appearance and high performance can be obtained. A clear coating composition including a hydroxy group-containing acrylic resin (a), a hydroxy group-containing polyester resin (b), a polyol compound (c) other than the hydroxy group-containing acrylic resin (a) and the hydroxy group-containing polyester resin (b), a polyisocyanate compound (d), organic dispersive particles (e), and a cellulose derivative (f), in which the polyol compound (c) has a hydroxyl value of more than 200 mg KOH/g and 1000 mg KOH/g or less and a molecular weight of 100 or more and 1000 or less.

Abstract: The present invention provides a coloring base coating material capable of forming a base coating film superior in design property (e.g., unevenness of a luster pigment), adhesion, and water resistance while satisfying environmental considerations such as shortening of drying time, and also provides a coated article obtained from the coloring base coating material. The present invention provides a coating method including: a step of applying a coloring base coating material to a molded article for an automobile part made of a plastic material to form an uncured first coating film, a step of applying a two-pack clear coating material to the uncured first coating film to form an uncured second coating film, and a step of baking and curing the uncured first coating film and the uncured second coating film to form a multilayer coating film, wherein the coloring base coating material is specified.

Abstract: Provided is a coating composition that can be suitably used even in a coating method different from conventional spray coating. A two-pack coating composition comprising a main resin comprising a hydroxyl group-containing component and a curing catalyst (C), and a hardener comprising an isocyanate compound (B), wherein the hydroxyl group-containing component comprises a polyol (A), the polyol (A) has a hydroxyl value of 200 mg KOH/g or more and 1900 mg KOH/g or less, a content of the curing catalyst (C) is in a range of from 0.05 parts by mass to 3 parts by mass based on 100 parts by mass of the hydroxyl group-containing component, and an amount of an organic solvent contained in the two-pack coating composition is 5 parts by mass or less based on 100 parts by mass of the two-pack coating composition.

Abstract: Provided is a coating composition set capable of achieving both a metallic design and coating film performance. A coating composition set including: a colored coating composition (a), a luster coating composition (b), and a clear coating composition (c), wherein the colored coating composition (a) includes a hydroxy group-containing resin (a1), a first curing agent (a2), and a coloring pigment (a3); the hydroxy group-containing resin (a1) includes a first hydroxy group-containing resin (a11) having a number average molecular weight of 3000 or less and a second hydroxy group-containing resin (a12) having a number average molecular weight of 100000 or more; the luster coating composition (b) includes a scaly pigment (b1), a cellulose ester derivative (b2), a cellulose nanofiber (b3), a phosphoric acid group-containing compound (b4), and an aqueous solvent (b5); the luster coating composition (b) has a solid content of 0.

Abstract: Provided are a water-borne luster coating composition and a coated plate which can exhibit a metallic design and in which coating film defects are prevented. A water-borne luster coating composition comprising a cellulose ester derivative, a cellulose nanofiber, and a scaly pigment, wherein an amount of a solid contained in the water-borne luster coating composition is 0.1% by mass or more and 12% by mass or less. A coated plate comprising an article to be coated and a luster coating film, wherein the luster coating film is formed of the water-borne luster coating composition.

Abstract: Provided is a laminated film that can be molded into a complicated shape. A laminated film comprising a transparent support substrate; an uncured hard coat layer formed on at least one surface of the transparent support substrate; and an uncured optical interference layer formed on the uncured hard coat layer, wherein the uncured hard coat layer comprises an active energy ray-curable composition for forming a hard coat layer, the uncured optical interference layer comprises an active energy ray-curable composition for forming a optical interference layer, a thickness of the transparent support substrate is 50 ?m or more and 600 ?m or less, a luminous reflectance including regular reflected light measured from an uncured optical interference layer side is 0.1% or more and 4.0% or less, and a stretch ratio at 160° C. is 50% or more.

Abstract: An object of the present invention is to provide a method for forming an antiglare hard coat layer having a concavo-convex shape that exhibits a good antiglare property and being superior in scratch resistance.

Abstract: Provided is a magnetorheological fluid having excellent long-term dispersion stability of magnetic particles and a large maximum change of yield stress under magnetic field application conditions. Also provided is a device having excellent long-term stable drivability and mechanism reliability. The magnetorheological fluid contains magnetic particles, resin particles, and a dispersion medium, wherein the proportion constituted by the mass of the magnetic particles relative to the total mass of the magnetorheological fluid is 35 mass % to 95 mass %, the proportion constituted by the mass of the resin particles relative to the total mass of the magnetorheological fluid is 0.3 mass % to 20 mass %, and the average particle diameter of the resin particles is 20 nm to 1,500 nm. This magnetorheological fluid is used in the device.

Abstract: Provided is a decorative laminate having excellent distinctness of design of a design layer and excellent surface smoothness of a clear layer after removal of a cover film. The decorative laminate includes a cover film, a clear layer, a design layer, a substrate film, and an adhesive layer adjacently to one another in order. The cover film is thermally laminated to the clear layer. The design layer is a coating film of a design layer coating material. The clear layer is a coating film of a clear layer coating material.

Abstract: The object of the present disclosure is to provide an automobile part capable of improving fuel consumption by weight reduction of the part because the impact resistance that can be sufficiently used even in cold regions can be given to a part made of a thinner plastic. An automobile part obtained by forming a coating film layer on a plastic material comprising a polypropylene resin composition modified with an elastomer component having a thickness of 1.5 to 2.5 mm, wherein said coating film layer is a multilayer coating film obtained by coating and baking the following coating compositions in this order; (a) a primer coating composition having a single film tensile elongation of 5 to 35% at ?20° C.

Abstract: An object of the present invention is to provide a multi-layer coating film having at least a clear coating film and a base coating film and having good chipping resistance, and preferably to provide a multi-layer coating film further having good designability. The multi-layer coating film of the present invention is a multi-layer coating film comprising a substrate, a base layer formed thereon, and a clear layer formed on the base layer, wherein the base layer comprises a luster pigment, wherein the base layer has an erosion index of 45 ?m2/g or less where the erosion index is a value obtained by multiplying an erosion rate of the base layer by a thickness of the base layer, and wherein the erosion rate of the base layer is measured using a micro slurry jet erosion method at a projection power at which an erosion rate with respect to a silicon wafer is 0.635 ?m/g.

Abstract: The present invention provides a cationic electrodeposition coating composition that has both good anti-cissing property and good coating film appearance. This is a cationic electrodeposition coating composition containing a silicone compound (A) having an SP value of more than 10.5 and 15.0 or less, and a film forming resin (B), wherein the silicone compound (A) is contained in an amount of 0.01 parts by mass or more and 4.5 parts by mass or less per 100 parts by mass of the resin solid content of the film forming resin (B). For example, the silicone compound (A) is at least one species selected from the group consisting of a polyether modified silicone compound (A-1), a polyester modified silicone compound (A-2), and a polyacrylic modified silicone compound (A-3).