| abstract |
(57) [Summary] [Object] To provide a polyester resin composition for can varnish having excellent wet ink properties, processability and blocking resistance. [Structure] 20 to 80 mol% of aromatic dicarboxylic acid, 1 to 60 mol% of succinic acid having a side chain, 0 to 60 mol% of aliphatic and / or alicyclic dicarboxylic acid having 6 to 12 carbon atoms, 50 to 100 mol% of neopentyl glycol, 0 to 50 mol% of other aliphatic and / or alicyclic glycol having 2 to 12 carbon atoms, and 0.1 to 5 of trivalent or higher polyvalent carboxylic acid or polyhydric alcohol. Mol%, reduced viscosity 0.2-0.6 dl / g, Tg 0-50 ° C., specific gravity 1. A polyester resin composition for can varnish containing 20 or less polyester resin (A) and a curing agent (C) blended at (A) / (C) = 80/20 to 40/60 (weight ratio). |