RESIN COMPOSITION FOR POWDER LAMINATION SHAPING METHOD, POWDER, SHAPED ARTICLE MANUFACTURING METHOD, AND SHAPED ARTICLE

To provide a resin composition for powder additive manufacturing which suppresses the powder fusion upon preheated up in a 3D printer for manufacturing; pellet; a powder; a method for manufacturing a formed article; and a formed article. The resin composition is used for powder additive manufacturin...

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Bibliographische Detailangaben
Hauptverfasser:	YAMASUE, Nao, SHOJI, Hidekazu, KISHISHITA, Minoru
Format:	Patent
Sprache:	eng ; fre ; ger
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 CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 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
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Beschreibung
Zusammenfassung:	To provide a resin composition for powder additive manufacturing which suppresses the powder fusion upon preheated up in a 3D printer for manufacturing; pellet; a powder; a method for manufacturing a formed article; and a formed article. The resin composition is used for powder additive manufacturing, comprising a polybutylene terephthalate-based resin that has a terephthalic acid-derived structural unit and a 1,4-butanediol-derived structural unit, and, a phosphorus atom-containing compound, the resin composition demonstrating a shearing stress of 0.30 N/cm2 or smaller, with the particle size D50 adjusted within the range from 20 to 80 um, after annealed for one hour at a temperature lower by 25°C than a melting point of the polybutylene terephthalate-based resin measured by differential scanning calorimetry.