EP 4355555 A1 20240424 - ADDITIVE MANUFACTURING METHOD, POLYMER POWDER COMPOSITION COMPRISING A DETECTION ADDITIVE, AND OBJECT OBTAINED BY THE METHOD
Title (en)
ADDITIVE MANUFACTURING METHOD, POLYMER POWDER COMPOSITION COMPRISING A DETECTION ADDITIVE, AND OBJECT OBTAINED BY THE METHOD
Title (de)
VERFAHREN ZUR GENERATIVEN FERTIGUNG, POLYMERPULVERZUSAMMENSETZUNG MIT EINEM NACHWEISADDITIV UND MIT DEM VERFAHREN ERHALTENER GEGENSTAND
Title (fr)
PROCÉDÉ DE FABRICATION ADDITIVE, COMPOSITION DE POUDRE POLYMERE COMPORTANT UN ADDITIF DE DÉTECTION, ET OBJET OBTENU PAR LEDIT PROCÉDÉ
Publication
Application
Priority
- FR 2106442 A 20210617
- IB 2022055495 W 20220614
Abstract (en)
[origin: US2024308132A1] The invention relates to a method for manufacturing a three-dimensional object, comprising locally raising the temperature of a powder using electromagnetic radiation in a heated chamber, causing the localised melting/coalescing of a layer of a predetermined thickness in order to form, after cooling, a solid polyamide layer, the method being characterised in that the powder comprises, relative to the total weight of the composition: —between 60% and 99% by weight of polyamide; —between 1% and 40% by weight of an optical and/or magnetic detection additive selected from the group formed by: pigments comprising a spinel structure containing a cation of a transition metal, the oxides of a transition metal, the sulphides of a transition metal; —between 0% and 5% by weight of a flow agent and in that the powder has: —a particle size distribution D50 of between 35 μm and 55 μm; and —a particle size distribution D10 of more than 15 μm; and—a particle size distribution D90 of less than 100 μm.
IPC 8 full level
B29C 64/153 (2017.01); B29C 64/357 (2017.01); B29C 64/371 (2017.01); B33Y 10/00 (2015.01); B33Y 40/00 (2020.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C08K 3/22 (2006.01); C08K 3/30 (2006.01); C08L 77/02 (2006.01)
CPC (source: EP US)
B29C 64/153 (2017.08 - EP US); B29C 64/255 (2017.08 - US); B29C 64/357 (2017.08 - EP US); B29C 64/371 (2017.08 - EP); B33Y 10/00 (2014.12 - EP US); B33Y 30/00 (2014.12 - US); B33Y 40/00 (2014.12 - EP); B33Y 70/00 (2014.12 - EP US); B33Y 80/00 (2014.12 - EP); C08K 3/013 (2018.01 - EP); C08K 3/22 (2013.01 - EP US); C08K 3/30 (2013.01 - EP); C08L 77/02 (2013.01 - EP); B29K 2077/00 (2013.01 - US); B29K 2105/0032 (2013.01 - US); B29K 2105/0094 (2013.01 - US); B29K 2105/16 (2013.01 - US); B29K 2105/251 (2013.01 - US); B29K 2105/26 (2013.01 - US); B29K 2995/0094 (2013.01 - US); C08K 2003/2227 (2013.01 - US); C08K 2003/2289 (2013.01 - EP US); C08K 2003/3009 (2013.01 - EP); C08K 2201/005 (2013.01 - EP); C08K 2201/01 (2013.01 - EP US)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 212022000027 U1 20221010; DE 22743558 T1 20240627; DK 4355555 T1 20240506; EP 4355555 A1 20240424; JP 2024522793 A 20240621; US 2024308132 A1 20240919
DOCDB simple family (application)
DE 212022000027 U 20220614; DE 22743558 T 20220614; DK 22743558 T 20220614; EP 22743558 A 20220614; JP 2023577928 A 20220614; US 202218571219 A 20220614