POWDER PARTICLE MIXTURE, METHOD FOR PRODUCING SAME, POWDER PARTICLE COMPOSITION AND METHOD FOR PRODUCING THREE-DIMENSIONAL OBJECT

A powder particle mixture which contains a polybutylene terephthalate resin and a polycarbonate resin, and which is characterized in that: the average particle diameter thereof is more than 1 μm but 100 μm or less; the uniformity thereof is 4 or less; the melting point thereof is more than 220° C.;...

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Bibliographische Detailangaben
Hauptverfasser:	WATANABE, Kei, TAKEDA, Kazusada, ISHIBASHI, Junji, NISHIDA, Mikiya, MIYAMA, Hisashi
Format:	Patent
Sprache:	eng
Schlagworte:	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 OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A powder particle mixture which contains a polybutylene terephthalate resin and a polycarbonate resin, and which is characterized in that: the average particle diameter thereof is more than 1 μm but 100 μm or less; the uniformity thereof is 4 or less; the melting point thereof is more than 220° C.; and the difference between the melting point thereof and the crystallization temperature thereof is 60° C. or more. A powder particle composition which is characterized by containing inorganic microparticles that have an average particle diameter of 20-500 nm at a ratio of 0.1-5 parts by weight relative to 100 parts by weight of the powder particle mixture. The present invention efficiently provides a polybutylene terephthalate resin powder which is suitable as a material powder for the production of a three-dimensional shaped product by means of Selective Laser Sintering 3D printer.