POLYOXYMETHYLENE LASER SINTERING POWDER, PROCESS FOR ITS PRODUCTION, AND MOLDINGS PRODUCED FROM THIS LASER SINTERING POWDER

摘要

The invention relates to a powder made of polyoxymethylene (POM) for use in a selective laser sintering process, comprising the following parameters: isothermal crystallization time (at 152 °C) > 3 min, Mn 22000 - 25000 g/mol, Mw 60000 - 140000 g/mol, Mw/Mn 3 - 5, MVR 15 - 70 [cm3/10 min], average particle size d50 60 µm, particle size 30 - 130 µm. The invention further relates to a method for the production thereof and molded parts produced using said powder by means of a selective laser sintering process.