Spray-dried soft-phase emulsion polymer for filling the gussets in bead polymer layers in a binder jetting method

• Main Authors: Wieber, Stephan, Poppe, Dirk, Fruth, Andrea, Bernhardt, Stefan
• Format: Patent
• Language: English
• Published: 11.11.2021
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to the technical field of 3D printing, in particular in the form of the binder jetting method, in which particles are adhered in a powder bed using a compressed adhesive in order to form a three-dimensional object. The particles can be inorganic materials, such as sand or a metal powder for example or polymer particles, such as polymethacrylates or polyamides for example. The polymethacrylates can be provided in the form of suspension polymers for example, i.e. bead polymers.