Polvos de polímeros biocompatibles para fabricación aditiva

• Main Authors: ZHANG, Jian-Feng, GENTSCH, Rafael, NIKOUKAR, Mohammad, ACREMAN, Kevin, TICE, Tom, LIZIO, Rosario, KARAU, Andreas, SHAH, Milin, PATEL, Harsh
• Format: Patent
• Language: Spanish
• Published: 26.04.2022
• 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 NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

Un polvo polimérico biocompatible suelto para la impresión tridimensional, que comprende partículas poliméricas criogénicamente molidas que tienen un D50 en el intervalo de 1 μm a 150 μm y un agente auxiliar de flujo, en donde el agente auxiliar de flujo es un polvo biocompatible esférico y suelto que comprende partículas poliméricas que tienen un D50 de 0,1 μm a 10 μm y en donde el D50 se determina mediante dispersión láser. The present invention is directed to biocompatible polymeric powders to be used for 3D printing applications. More specifically, the 3D printing process will allow a tool less manufacturing of medical devices in particular in the implantables or regenerative space. Its flow and other processing characteristics qualifies them for the use in selective laser sintering, but also could be suitable for other powder based 3D printing technologies.