DESCRIZIONE
A marine antifouling coating composition comprising 1) a polyoxalate polymer with a Mw of at least 4000 g/mol, wherein said polyoxalate comprises (i) a residue of an oxalate monomer selected from oxalic acid or a diester derivative thereof, (ii) a residue of a second monomer selected from a cyclic diester or cyclic diacid and (iii) a residue of a third monomer which is a diol, 2) a curing agent and optionally 3) a marine antifouling agent.