POLYAMIDE-HAVING POLYMER POWDER, USE THEREOF IN SHAPE-IMPARTING METHOD AND MOLDED ARTICLE PRODUCED THEREFROM

摘要

PROBLEM TO BE SOLVED: To provide a polymer powder which enables to produce a molded article having surface quality high as far as possible, and faithful to a mold as far as possible.

SOLUTION: The polymer powder is used for lamination molding carried out by selectively and timely melting a region of a powder layer by introduction of electromagnetic energy. The powder is characterized by including at least one homopolyamide produced by polycondensation of a diamine with a dicarboxylic acid, and having at least 125 J/g of a melting enthalpy and at least 148°C of a recrystallization temperature.

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