Polymer compositions with adhesive properties comprising: (1) at least one fluoropolymer (A) grafted by at least one compound (a), wherein the compound (a) contains at least one functional group (f1) capable of conferring adhesion properties on the fluoropolymer; (2) at least one olefin polymer (B) grafted by at least one compound (b), wherein the compound (b) contains at least one functional group (f2) capable of conferring adhesion properties on the olefin polymer and of reacting with the functional group (f1) contained in the compound (a); and (3) at least one polymer (C) chosen from polyesters and polyamides.