FEEDSTOCK FOR AN ADDITIVE MANUFACTURING METHOD, ADDITIVE MANUFACTURING METHOD USING THE SAME, AND ARTICLE OBTAINED THEREFROM

The present invention relates to an improved feedstock for a 3D manufacturing process, in particular a Fused Filament Fabrication process. The feedstock comprises (P) sinterable particles made of a metal, metal alloy, glass, ceramic material, or a mixture thereof; and (B)a binder composition comprising (b1) 5 - 15 % by weight, relative to the total weight of the binder composition, of a polymeric compatibilizer, and (b2) 85 - 95 % by weight, relative to the total weight of the binder composition, of a polymeric binder component, the polymeric binder component being selected from the group consisting of (b2-1) a polymer mixture or polymer alloy, the mixture or alloy comprising at least a first and a second polymer, the Tg of the first polymer being -20 °C or lower and the Tg of the second polymer being 60 °C or higher; (b2-2)one, two or more block copolymers, comprising at least a first polymer block and second polymer block, the first polymer block having a Tg in the range of -20 °C or lower and the second polymer block having a Tg of 60 °C or higher; and (b2-3) mixtures of (b2-1) and (b2-2); wherein the amount of sinterable particles (P) is 40 Vol.-% or more of the composition.