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1. WO2020064375 - FDM PRINTED MATERIAL RESISTANT TO SOLVENT INDUCED CRACKING

Publication Number WO/2020/064375
Publication Date 02.04.2020
International Application No. PCT/EP2019/074602
International Filing Date 16.09.2019
IPC
B29C 64/118 2017.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
106using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
118using filamentary material being melted, e.g. fused deposition modelling
B33Y 10/00 2015.01
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
CPC
B29C 64/118
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
106using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
118using filamentary material being melted, e.g. fused deposition modelling [FDM]
B33Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
Applicants
  • SIGNIFY HOLDING B.V. [NL]/[NL]
Inventors
  • HIKMET, Rifat, Ata, Mustafa
  • VAN HAL, Paulus, Albertus
Agents
  • VAN DIJKEN, Albert
  • VERWEIJ, Petronella, Danielle
Priority Data
18196178.024.09.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FDM PRINTED MATERIAL RESISTANT TO SOLVENT INDUCED CRACKING
(FR) MATÉRIAU IMPRIMÉ PAR FDM RÉSISTANT À LA FISSURATION INDUITE PAR UN SOLVANT
Abstract
(EN)
The invention provides a method for producing a 3D item (1) by means of fused deposition modelling, the method comprising (i) a 3D printing stage comprising layer- wise depositing an extrudate (321) comprising 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D item (1) comprises a plurality of layers (322) of 3D printed material (202), wherein the 3D item (1) has an item surface (252) defined by at least part of the 3D printed material (202), and (ii) a coating stage comprising applying one or more starting materials (521) to at least a surface part (253) of the item surface (252) to form a polymeric coating (520) on the surface part (253), wherein the one or more starting materials (521) comprise two or more reactive materials (524) that are reactable with each other, and wherein the coating stage comprises reacting the two or more reactive materials (524) on the surface part (253) to provide the polymeric coating (520).
(FR)
L'invention concerne un procédé de production d'un article 3D (1) au moyen d'une modélisation par dépôt de fil fondu (FDM), le procédé comprenant (i) une étape d'impression 3D comprenant le dépôt couche par couche d'un produit extrudé (321) comprenant un matériau imprimable 3D (201) pour obtenir l'article 3D (1) comprenant un matériau imprimé 3D (202), l'article 3D (1) comprenant une pluralité de couches (322) de matériau imprimé 3D (202), l'article 3D (1) présentant une surface d'article (252) définie par au moins une partie du matériau imprimé 3D (202) et (ii) une étape de revêtement comprenant l'application d'un ou plusieurs matériaux de départ (521) sur au moins une partie de surface (253) de la surface d'article (252) pour former un revêtement polymère (520) sur la partie de surface (253), ledit un ou lesdits plusieurs matériaux de départ (521) comprennent au moins deux matériaux réactifs (524) qui peuvent réagir l'un avec l'autre et l'étape de revêtement comprenant la réaction desdits au moins deux matériaux réactifs (524) sur la partie de surface (253) pour obtenir le revêtement polymère (520).
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