| abstract |
A coating composition for a food and / or beverage container comprising a polyester material, wherein the polyester material comprises the reaction product of a two-stage process, the two-stage process comprising: a first stage comprising preparing a polyester prepolymer by contacting (a) 1,2-propanediol, (b) terephthalic acid, and a second step comprising contacting the polyester prepolymer with (c) a molecular weight increasing agent, characterized by that the polyester material has a number average molecular weight (Mn) of at least 6,100 Da as measured by size exclusion chromatography using a polystyrene standard per ASTM D6579-11 and a glass transition temperature (Tg) of at least 80 ° C as measured according to ASTM D6604-00 (2013). |