Three dimensional printed parts made by additive manufacturing using cyanoacrylates in post processing

A method of preparing a three-dimensional printed part comprises performing additive manufacture using a curable (meth)acrylate composition to form a three-dimensional part on a build substrate, optionally removing the part from the build substrate, optionally contacting the part with an activator,...

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Bibliographische Detailangaben
Hauptverfasser:	Isidro Cobo-Cardenete, Nigel Sweeney, Greg Clarke, Rory B Barnes, Darren Nolan
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 ADHESIVES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method of preparing a three-dimensional printed part comprises performing additive manufacture using a curable (meth)acrylate composition to form a three-dimensional part on a build substrate, optionally removing the part from the build substrate, optionally contacting the part with an activator, and contacting the part with a cyanoacrylate composition. The activator may comprise a nitrogen-containing compound, e.g. 1,2-di(4-pyridyl ethane), 4,4'-dipyridyl disulphide, 3-(3-hydroxypropyl)pyridine, pyridazine, or methylpyridazine, in an organic solvent having a boiling point of 30-100ºC. The cyanoacrylate composition may comprise methyl cyanoacrylate, ethyl-2-cyanoacrylate, propyl cyanoacrylates, butyl cyanoacrylates, octyl cyanoacrylates, allyl cyanoacrylate, or β-methoxyethyl cyanoacrylate in an organic solvent having a boiling point of 30-100ºC. A method of post-processing a three-dimensional printed part comprises providing a three-dimensional printed part made by additive manufacture from a photocurable resin composition and contacting a surface of the part with a cyanoacrylate composition and optionally an activator to form a coating over the surface.