| abstract |
An additive manufacturing composition for powder bed processes is described. The composition comprises at least a first type of impact modified polymer beads. The polymer beads comprise a)an acrylic or vinyl (co)polymer matrix, and b)an impact modifier; wherein at least 85% w/w of the first type of impact modified polymer beads have a particle size of between ≥20µm and ≤200µm and/or wherein on average the said impact modified polymer beads comprise greater than 5% w/w impact modifier. An additive manufacturing process for a production of a three dimensional product is also described as is an additive manufactured article, comprising fused impact modified polymer particles. The use of a composition in additive manufacturing,an additive manufacturing cartridge or replacement hopper and a process for the production of impact modified polymer beads by a suspension polymerisation process is described. |