PARTICULATE BUILD MATERIALS FOR THREE-DIMENSIONAL PRINTIG

A particulate build material for three-dimensional printing can include from about 80 wt % to 100 wt % polymer particles having an average particle size from about 10 μm to about 125 μm. The polymer particles can have a polyolefin polymer backbone with from about 90 mol % to 100 mol % polypropylene...

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Bibliographische Detailangaben
Hauptverfasser:	OLUBUMMO, ADEKUNLE, ZHAO, LIHUA, HERSCHKE, LAURENT
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 CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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 particulate build material for three-dimensional printing can include from about 80 wt % to 100 wt % polymer particles having an average particle size from about 10 μm to about 125 μm. The polymer particles can have a polyolefin polymer backbone with from about 90 mol % to 100 mol % polypropylene polymeric units and from 0 mol % to about 10 mol % polyethylene polymeric units. The polymer particles can further include a crosslinkable component in the form of a maleic anhydride-containing side chain appended to the polyolefin polymer backbone, a thiol-containing side chain appended to the polyolefin polymer backbone, a glycidyl polyhedral oligomeric silsesquioxane compounded with the polyolefin polymer backbone, or a combination thereof.