BUILD MATERIALS FOR ADDITIVE MANUFACTURING APPLICATIONS

A build material for additive manufacturing applications is disclosed. The build material includes a build composition in powder form. The build composition includes a semi-crystalline polymer having a glass transition temperature of at least 60°C as measured by DSC and a minimum crystallization hal...

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Bibliographische Detailangaben
Hauptverfasser:	DESAI, Amit Vasant, WRIGHT, Steven Frederick, DETWILER, Andrew Thomas, SHEPARD, Everett B
Format:	Patent
Sprache:	eng ; fre
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 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 WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A build material for additive manufacturing applications is disclosed. The build material includes a build composition in powder form. The build composition includes a semi-crystalline polymer having a glass transition temperature of at least 60°C as measured by DSC and a minimum crystallization half-time of greater than 100 minutes as measured by SALS. A semi-crystalline polymer useful in additive manufacturing applications, an additive manufacturing method for producing a three-dimensional object and an additive-manufactured polymer article are also described. L'invention concerne un matériau de construction pour des applications de fabrication additive. Le matériau de construction comprend une composition de construction sous forme de poudre. La composition de construction comprend un polymère semi-cristallin ayant une température de transition vitreuse d'au moins 60 °C telle que mesurée par DSC et un demi-temps de cristallisation minimal supérieur à 100 minutes tel que mesuré par SALS. L'invention concerne également un polymère semi-cristallin utile dans des applications de fabrication additive, un procédé de fabrication additive pour produire un objet tridimensionnel et un article polymère fabriqué par fabrication additive.