3D PRINTING METHOD UTILIZING HEAT-CURABLE SILICONE COMPOSITION

A method of forming a three-dimensional (3D) article comprises the steps of I) printing a first heat-curable silicone composition with a 3D printer to form a layer, II) heating the layer to form an at least partially cured layer, III) printing a second heat-curable silicone composition on the at lea...

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Bibliographische Detailangaben
Hauptverfasser:	SCHAUBROECK, Sara, BACKER, Michael W, ZHU, Bizhong, WOLF, Hans Peter, MILROY, Zachary
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 COMPOSITIONS OF MACROMOLECULAR COMPOUNDS INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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 method of forming a three-dimensional (3D) article comprises the steps of I) printing a first heat-curable silicone composition with a 3D printer to form a layer, II) heating the layer to form an at least partially cured layer, III) printing a second heat-curable silicone composition on the at least partially cured layer with the 3D printer to form a subsequent layer, and IV) heating the subsequent layer to form an at least partially cured subsequent layer. Optionally, steps III) and IV) can be repeated with independently selected heat-curable silicone composition(s) for any additional layer(s) to form the 3D article. The first and second heat-curable silicone compositions may be the same as or different from one another. L'invention concerne un procédé de formation d'un article tridimensionnel (3D) comprenant les étapes consistant à : I) imprimer une première composition de silicone thermodurcissable avec une imprimante 3D pour former une couche ; II) chauffer la couche pour former une couche au moins partiellement durcie ; III) imprimer une seconde composition de silicone thermodurcissable sur la couche au moins partiellement durcie avec l'imprimante 3D pour former une couche suivante ; et IV) chauffer la couche suivante pour former une couche suivante au moins partiellement durcie. En option, les étapes III) et IV) peuvent être répétées avec une ou plusieurs compositions de silicone thermodurcissables choisies indépendamment, pour toute(s) couche(s) supplémentaire(s) afin de former l'article 3D. Les première et seconde compositions de silicone thermodurcissables peuvent être identiques l'une à l'autre ou différentes l'une de l'autre.