Abstract: In an automobile hood, sufficient panel rigidity and dent resistance are secured while achieving weight reduction. Automobile hood 1 has a panel 2, a reinforcing member 3, and a joint 4 that joins the panel 2 and the reinforcing member 3. The reinforcing member 3 includes a structure formed from a plurality of units 7 having a hexagonal annular shape disposed in a close-packed arrangement. Unit 7 has a floor 11, inclined wall 12 and top plate 13. The floor 11 is adjacent to the panel 2. Top plate 13 and panel 2 are separated from each other. The inclined wall 12 is arranged between the floor 11 and the top plate 13. A hexagonal annular first ridge line 31 of the unit 7 is located between the inclined wall 12 and the floor 11. A length L1 of one side of the first ridge line 31 is 40-75 mm.

Abstract: The invention offers methods for forming multilayer coating film excelling in smoothness, distinctness of image, water resistance and chipping resistance, the methods comprising successively applying onto a coating object a water-based first coloring paint and a water-based second coloring paint, and simultaneously heating and curing the resultant first colored coating film and second colored coating film, in which the water-based first coloring paint comprises hydroxy-containing polyester resin, curing agent, and water-dispersible acrylic resin which is obtained by polymerization of a monomer component comprising 30-100 mass % of C5-22 alkyl-containing polymerizable unsaturated monomer and 0-70 mass % of polymerizable unsaturated monomer other than the C5-22 alkyl-containing polymerizable unsaturated monomer.

Abstract: The invention provides water-based paint compositions capable of forming coating film of excellent smoothness, distinctness of image, water resistance and chipping resistance, which comprise aqueous film-forming resin, curing agent and crosslinked resin particles having a core/shell type multilayer structure composed of the core part of a (co)polymer obtained by (co)polymerizing a monomer component comprising 30-100 mass % of polymerizable unsaturated monomer having C4-22 alkyl group and 0-70 mass % of other polymerizable unsaturated monomer, and the shell part having a crosslinked structure.

Abstract: The invention offers methods for forming multilayer coating film excelling in smoothness, distinctness of image, water resistance and chipping resistance, the methods comprising successively applying onto a coating object a water-based first coloring paint and a water-based second coloring paint, and simultaneously heating and curing the resultant first colored coating film and second colored coating film, in which the water-based first coloring paint comprises hydroxy-containing polyester resin, curing agent, and water-dispersible acrylic resin which is obtained by polymerization of a monomer component comprising 30-100 mass % of C5-22 alkyl-containing polymerizable unsaturated monomer and 0-70 mass % of polymerizable unsaturated monomer other than the C5-22 alkyl-containing polymerizable unsaturated monomer.

Abstract: The invention provides water-based paint compositions capable of forming coating film of excellent smoothness, distinctness of image, water resistance and chipping resistance, which comprise aqueous film-forming resin, curing agent and crosslinked resin particles having a core/shell type multilayer structure composed of the core part of a (co)polymer obtained by (co)polymerizing a monomer component comprising 30-100 mass % of polymerizable unsaturated monomer having C4-22 alkyl group and 0-70 mass % of other polymerizable unsaturated monomer, and the shell part having a crosslinked structure.

Abstract: This invention provides coating compositions excelling in storage stability and curability, which comprise carboxyl group- and/or cyclic acid anhydride group-containing compound; polyepoxide; and latent curing catalyst composed of tertiary amine and acidic phosphoric acid ester.