Method for producing surface-modified three-dimensional article by laminated manufacturing, three-dimensional article having modified surface and use thereof

• Main Authors: HERRMANN, ANDREAS, G, RAIA GIOACCHINO
• Format: Patent
• Language: Chinese; English
• Published: 09.09.2022
• Subjects: 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; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; CASTING; DENTISTRY; HUMAN NECESSITIES; HYGIENE; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MEDICAL OR VETERINARY SCIENCE; PERFORMING OPERATIONS; POWDER METALLURGY; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A method of preparing a surface-modified three-dimensional article, a three-dimensional article obtainable by such a method, and a kit comprising such a three-dimensional article, the method comprising the steps of: providing a radiation curable composition; building a three-dimensional article by radiation curing the radiation curable composition layer by layer, preferably by using stereolithography or a digital light processing unit; partially removing the radiation curable composition adhered to the surface of the three-dimensional article; treating only a portion of the surface of the three-dimensional article to which the radiation curable composition is adhered with particles; an additional curing step is applied to the three-dimensional article, preferably by applying heat and/or radiation. 本发明公开了一种制备表面改性的三维制品的方法、可以通过此种方法获得的三维制品和包括此种三维制品的套件盒，该方法包括以下步骤：提供可辐射固化组合物；优选地通过使用立体光刻或数字光处理单元，通过逐层辐射固化可辐射固化组合物来构建三维制品；部分去除粘连到该三维制品的表面的可辐射固化组合物；用颗粒处理该三维制品的粘连了该可辐射固化组合物的表面的仅一部分；优选地通过施加热和/或辐射来向该三维制品施加附加的固化步骤。