The invention relates to a polymer comprising certain specific units. The invention further relates to processes for making the polymer of the invention. The invention further relates to a binder and compositions comprising the polymer, preferably to compositions suitable for paints and coatings. The invention relates in particular to water-borne, solvent-borne and powder coating compositions and preferably to curable water-borne, curable solvent-borne and curable powder coating compositions. The invention further relates to cured compositions. The invention further relates to objects, in particular coatings prepared from the compositions of the invention. The invention further relates to processes for making the compositions of the invention. The invention further relates to articles having coated thereon the compositions of the invention. The invention further relates to articles having coated and cured thereon the compositions of the invention. The invention further relates to various uses of the polymer of the invention, the binder of the invention, the composition of the invention, the cured composition of the invention and various uses of articles having coated and optionally cured thereon the compositions of the invention.