Matt powder coatings

A branched carboxylic acid functional polyester resin P, having:

• (a) a Tg of at least 40° C. as measured by Differential Scanning calorimetry (DSC) at a heating rate of 5° C./min;
• (b) an acid value (AV) of at least 65 and of at most 76.8 mg KOH/g of the polyester resin P;
• (c) a hydroxyl value of at most 9 mg KOH/g of the polyester resin P;
• and
• (d) a functionality of at least 3.5 and at most 5;
• wherein
• the polyester resin P is a reaction product of at least the following monomers:
• i) neopentyl glycol in an amount of at least 19 and at most 38 mol %;
• ii) ethylene glycol in an amount of at least 8 and at most 21 mol %;
• iii) a polyol in an amount of at least 0 and at most 2 mol %;
• iv) isophthalic acid in an amount of at least 0 and at most 2.4 mol %;
• v) terephthalic acid in an amount of at least 38 and at most 47 mol %;
• vi) adipic acid in an amount of at least 0.01 and at most 10 mol %;
• and
• vii) a polycarboxylic acid, in an amount of at least 6 and at most 10.2 mol %;
• and wherein
• the mol % is based on a total amount of monomers i)-vii) forming the polyester resin P being 100 mol %.