Abstract: Provided is an aqueous polyester resin dispersion composition that maintains high rot-proofness and adhesiveness over a long period of time. More specifically, provided is an aqueous polyester resin dispersion composition containing pyrithione or a salt thereof.

Abstract: Provided is a method for efficiently producing an aqueous polyester resin dispersion composition in an excellent emulsification state with excellent adhesiveness. More specifically, provided is a method for producing an aqueous polyester resin dispersion composition, including mixing a melt-kneaded material of polyester and polyvinyl alcohol further with an aqueous solution of 3 to 10 mass% polyvinyl alcohol such that the total content of the polyester and the polyvinyl alcohol in the obtained mixture is 78 to 88 mass%.

Abstract: The invention provides an aqueous dispersion prepared by dispersing in water an olefin-?, ?-unsaturated carboxylic acid copolymer having a relatively small amount of ?,?-unsaturated carboxylic acid by using ammonia, and provides a production method for the aqueous dispersion. Specifically, the aqueous dispersion is an aqueous dispersion composition of a copolymer comprising an ?,?-unsaturated carboxylic acid or an ester thereof as a constituent unit, the composition comprising ammonia, the copolymer having a heat of crystallization of -30 J/g or less, and the copolymer being present in an amount of 10 to 50 mass%.