Patent ID: 8313881

Claim:
A polyester resin comprising: acid components including 70 to 96 mol % of aromatic dibasic acid component, 3 to 20 mol % of cycloaliphatic dibasic acid component, and 1 to 10 mol % of trivalent or higher acid component; alcohol components including 10 to 50 mol % of cycloaliphatic diol component, 2 to 20 mol % of trihydric or higher alcohol component, and 30 to 88 mol % of aliphatic diol component; and a heat stabilizer wherein a softening temperature of the polyester resin is 150 to 210° C., an acid value of the polyester resin is 1 to 30 KOHmg/g, and a glass transition temperature of the polyester resin is more than 58° C.