Laser-sintering Powder with PMMI, PMMA, and/or PMMI-PMMA Copolymers, Process for its Preparation, and Mouldings Produced from This Laser-sintering Powder

摘要

A sinter powder comprises polyamide(s); and at least one poly(N-methyl-methacrylimide), polymethyl methacrylate, and/or poly(N-methyl-methacrylimide)-polymethyl methacrylate copolymer. Independent claims are also included for: (A) a process for preparing the above sinter powder comprising mixing the polyamide(s) with at least one poly(N-methyl-methacrylimide) (PMMI), polymethyl methacrylate (PMMA), and/or PMMI-PMMA copolymer; (B) a process for producing moldings comprising laser sintering the sinter powder; and (C) a molding produced by laser sintering.