SUPPORT MATERIAL FORMULATIONS USABLE IN ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL OBJECTS AT LOW TEMPERATURES

• Main Authors: SARFATI RAFFY, NAPADENSKY EDUARDO, SHPAYZER ELENA, RUMBAK MAYAN
• Format: Patent
• Language: Chinese; English
• Published: 04.12.2020
• 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; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Formulations usable as support material in additive manufacturing such as 3D inkjet printing and which feature a viscosity of no more than 50cPs at 35 DEG C, are provided. The formulations are composed of at least one hydrophilic curable material which provides, when hardened, a material that is dissolvable or swellable in an aqueous solution; and at least one non- curable material that is capableof being swelled by said hardened material formed of said at least one curable material. Additive manufacturing processes utilizing these formulations and objects obtained thereby are also provided. 本发明提供多种可在增材制造例如三维喷墨打印中用作支撑材料的制剂，所述制剂的特征为在35℃下不超过50厘泊的一粘度。所述制剂由至少一亲水性可固化材料以及至少一不可固化材料组成，所述亲水性可固化材料在硬化时提供可在一水溶液中溶解或溶胀的一材料；所述至少一不可固化材料可被由所述至少一可固化材料形成的所述硬化材料溶胀。本发明还提供了多种利用这些制剂的增材制造方法以及多种由此获得的物体。