Abstract: The purpose of the present invention is to provide an antibacterial/antiviral coating agent capable of forming an antibacterial/antiviral coating film that can maintain an excellent appearance. This antibacterial/antiviral coating agent includes acrylic melamine paint, a quaternary ammonium salt, polyvalent carboxylic acid, and phosphoric acid; the quaternary ammonium salt is included at over 3.0 parts by weight and under 5.0 parts by weight to 100 parts by weight of acrylic melamine paint solids, and the phosphoric acid is included at a mole ratio of 0.5-3.5 to the quaternary ammonium salt.

Abstract: The purpose of the present invention is to provide an antibacterial/antiviral coating agent capable of forming an antibacterial/antiviral coating film that can maintain an excellent appearance. This antibacterial/antiviral coating agent includes acrylic melamine paint, a quaternary ammonium salt, polyvalent carboxylic acid, and phosphoric acid; the quaternary ammonium salt is included at over 3.0 parts by weight and under 5.0 parts by weight to 100 parts by weight of acrylic melamine paint solids, and the phosphoric acid is included at a mole ratio of 0.5-3.5 to the quaternary ammonium salt.

Abstract: An antibacterial/antiviral coating material is provided, which allows for forming a highly water-resistant antibacterial/antiviral coating film. The antibacterial/antiviral coating material is obtained by blending, into an acrylic-melamine resin coating material, a quaternary ammonium salt (A) represented by Formula (1) below, and a polyhydric carboxylic acid (B) having a C6 or more hydrocarbon group and two or more carboxyl groups. (In Formula (1), R1 represents a C8-22 alkyl group; R2A, R2B and R2C each independently represent a C1-3 alkyl group; and X represents a halogen atom).

Abstract: A highly hot-water-resistant antibacterial treatment agent is provided, which is capable of suppressing the sliminess of water supply-and-drainage members such as drainage members, for a long period of time, equipped to a kitchen sink or bathroom drain. The antibacterial treatment agent includes: a quaternary ammonium salt represented by Formula (1) below; and a polyhydric carboxylic acid having a C6 or higher hydrocarbon group and two or more carboxyl groups. (In Formula (1), R1 represents a C16-18 alkyl group; R2A, R2B, R4A, R4B and R4C each independently represent a C1-3 alkyl group; R3 represents a C1-4 alkylene group; and X represents a halogen atom).

Abstract: An antibacterial/antiviral coating material is provided, which allows for forming a highly water-resistant antibacterial/antiviral coating film. The antibacterial/antiviral coating material is obtained by blending, into an acrylic-melamine resin coating material, a quaternary ammonium salt (A) represented by Formula (1) below, and a polyhydric carboxylic acid (B) having a C6 or more hydrocarbon group and two or more carboxyl groups. (In Formula (1), R1 represents a C8-22 alkyl group; R2A, R2B and R2C each independently represent a C1-3 alkyl group; and X represents a halogen atom).