| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester resin aqueous dispersion, the film obtained from which excels in water resistance, solvent resistance and flexibility.SOLUTION: This polyester resin aqueous dispersion includes a polyester resin having an acid value of ≥8 mgKOH/g and a glass transition temperature of 40-120°C, wherein the polyester resin contains 95-100 mol% terephthalic acid and 1-5 mol% trimellitic acid as acid constituents, but does not contain isophthalic acid, and contains a 25-80 mol% alkylene oxide derivative of bisphenol as an alcohol constituent. |
