LASER-SINTERING POWDER COMPRISING PMMI, PMMA, AND/OR PMMI-PMMA COPOLYMERS, A PROCESS FOR PREPARING THEREOF AND MOLDINGS PRODUCED FROM THE LASER-SINTERING POWDER

• Main Authors: BAUMANN FRANZ ERICH, MONSHEIMER SYLVIA, PETTER CHRISTOPH, GREBE MAIK
• Format: Patent
• Language: English; Korean
• Published: 22.09.2004
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; 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; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PURPOSE: Provided are a laser-sintering powder capable of giving better dimensional stability and surface quality in the parts produced by means of selective laser-sintering, a process for preparing the laser-sintering powder, and moldings produced from the laser-sintering powder. CONSTITUTION: The laser-sintering powder comprises at least one polyamide and at least one poly(N-methylmethacrylimide) (PMMI), one polymethyl methacrylate (PMMA), and/or one PMMI-PMMA copolymer.