Composition comprising polyesters for additive manufacturing

A method for producing a three-dimensional object with an additive manufacturing process, the method comprising:

• reacting at least one organic acid and at least one polyol, forming a polyester polyol,
• wherein the organic acid comprises:
• at least two carboxyl groups, or anhydrides thereof, and
• 4 to 44 carbons, and
• wherein the polyol comprises at least two hydroxyl groups;
• reacting the polyester polyol with at least one compound comprising an acrylate or methacrylate, forming a polymer reaction product,
• wherein the polymer reaction product has a glass transition temperature (Tg) of below 23° C.;
• mixing the polymer reaction product, a photoinitiator, and a diluent to generate a composition, wherein the diluent comprises at least one methacrylate-group and the diluent does not comprise an isocyanate group;
• and
• generating the three-dimensional object using the composition in the additive manufacturing process.