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1. WO2011124588 - POLYAMIDE-BASED POLYMER POWDER, USE THEREOF IN A MOLDING METHOD, AND MOLDED ARTICLES MADE FROM SAID POLYMER POWDER

Publication Number WO/2011/124588
Publication Date 13.10.2011
International Application No. PCT/EP2011/055316
International Filing Date 06.04.2011
IPC
C08L 77/02 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
77Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
02Polyamides derived from omega-amino carboxylic acids or from lactams thereof
C08L 77/06 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
77Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
06Polyamides derived from polyamines and polycarboxylic acids
B29C 67/00 2006.1
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
67Shaping techniques not covered by groups B29C39/-B29C65/93
CPC
B29C 64/106
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
B29C 64/153
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
141using only solid materials
153using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 70/00
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
70Materials specially adapted for additive manufacturing
C08L 2205/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2205Polymer mixtures characterised by other features
02containing two or more polymers of the same C08L -group
C08L 77/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
77Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain
02Polyamides derived from omega-amino carboxylic acids or from lactams thereof
C08L 77/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
77Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain
06Polyamides derived from polyamines and polycarboxylic acids
Applicants
  • EVONIK DEGUSSA GMBH [DE]/[DE] (AllExceptUS)
  • BAUMANN, Franz-Erich [DE]/[DE] (UsOnly)
  • DIEKMANN, Wolfgang [DE]/[DE] (UsOnly)
  • KÜTING, Beatrice [DE]/[DE] (UsOnly)
  • STEMMER, Heike [DE]/[DE] (UsOnly)
  • GREBE, Maik [DE]/[DE] (UsOnly)
  • WARNKE, Kristiane [DE]/[DE] (UsOnly)
  • MONSHEIMER, Sylvia [DE]/[DE] (UsOnly)
  • HÄGER, Harald [DE]/[DE] (UsOnly)
Inventors
  • BAUMANN, Franz-Erich
  • DIEKMANN, Wolfgang
  • KÜTING, Beatrice
  • STEMMER, Heike
  • GREBE, Maik
  • WARNKE, Kristiane
  • MONSHEIMER, Sylvia
  • HÄGER, Harald
Priority Data
10 2010 014 443.609.04.2010DE
10 2010 062 347.402.12.2010DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) POLYMERPULVER AUF DER BASIS VON POLYAMIDEN, VERWENDUNG IN EINEM FORMGEBENDEN VERFAHREN UND FORMKÖRPER, HERGESTELLT AUS DIESEM POLYMERPULVER
(EN) POLYAMIDE-BASED POLYMER POWDER, USE THEREOF IN A MOLDING METHOD, AND MOLDED ARTICLES MADE FROM SAID POLYMER POWDER
(FR) POUDRE POLYMÈRE À BASE DE POLYAMIDES, UTILISATION DE LADITE POUDRE DANS UN PROCÉDÉ DE FAÇONNAGE ET CORPS FAÇONNÉS PRODUITS À PARTIR DE LADITE POUDRE POLYMÈRE
Abstract
(DE) Die vorliegende Erfindung betrifft ein Polymerpulver zur Verwendung in einem schichtweise arbeitenden Verfahren, bei dem selektiv Bereiche der jeweiligen Pulverschicht durch den Eintrag elektromagnetischer Energie aufgeschmolzen werden, enthaltend: zumindest ein Polyamid des AB-Typs, hergestellt durch Polymerisation von Lactamen mit 10 - 12 Kohlenstoffatomen in der Monomereineit oder durch Polykondensation der entsprechenden ω-Aminocarbonsäuren mit 10 - 12 Kohlenstoffatomen in der Monomereinheit und zumindest ein Polyamid des AABB-Typs, hergestellt durch Polykondensation von Diaminen und Dicarbonsäuren mit jeweils 10-14 Kohlenstoffatomen in den Monomereinheiten, wobei das Polyamid des AB-Typs bis zu 20 mol-% der AABB- Comonomereinheiten und das Polyamid des AABB-Typs bis zu 20 Mol% der AB- Monomereinheiten enthalten kann, ein Verfahren zur Herstellung eines solchen Pulvers, ein schichtweise arbeitendes Verfahren zur Herstellung eines Formkörpers aus einem solchen Pulver, wobei selektive Bereiche der jeweiligen Schicht durch Einbringen elektromagnetischer Energie aufgeschmolzen werden und die Selektivität durch Masken, Auftragung von Inhibitoren, Absorbern oder Suszeptoren, oder durch Fokussierung des Energieeintrages erreicht wird, sowie so hergestellte Formkörper.
(EN) The invention relates to a polymer powder for use in a layer-by-layer method in which areas of each powder layer are selectively fused by introducing electromagnetic energy. Said polymer powder contains: at least one AB-type polyamide produced by polymerizing lactams comprising 10 to 12 carbon atoms in the monomer unit or polycondensing the corresponding ω-amino carboxylic acids comprising 10 to 12 carbon atoms in the monomer unit and at least one AABB-type polyamide produced by polycondensing diamines and dicarboxylic acids, each of which comprises 10 to 14 carbon atoms in the monomer units, the AB-type polyamide containing up to 20 mole % of the AABB comonomer units and the AABB-type polyamide containing up to 20 mole % of the AB monomer units. The invention also relates to a method for producing such a powder, a layer-by-layer method for producing a molded article from such a powder in which areas of each layer are selectively fused by introducing electromagnetic energy, the selectivity being obtained using masks or by applying inhibitors, absorbers or susceptors or focusing the applied energy, and molded articles produced in said manner.
(FR) La présente invention concerne une poudre polymère destinée à être utilisée dans un procédé reposant sur la formation de couches, procédé selon lequel des zones de chaque couche de poudre sont sélectivement fondues par application d'énergie électromagnétique, ladite poudre polymère contenant : au moins un polyamide de type AB, produit par polymérisation de lactames comportant 10 à 12 atomes de carbone dans le motif monomère ou par polycondensation des acides ω-aminocarboxyliques correspondants, comportant 10 à 12 atomes de carbone dans le motif monomère; et au moins un polyamide de type AABB, produit par polycondensation de diamines et d'acides dicarboxyliques comportant respectivement 10 à 14 atomes de carbone dans les motifs monomères, le polyamide de type AB pouvant contenir jusqu'à 20 % en moles de motifs comonomères AABB et le polyamide de type AABB pouvant contenir jusqu'à 20 % en moles de motifs monomères AB. L'invention concerne également un procédé pour produire une telle poudre, un procédé reposant sur la formation de couches pour produire un corps façonné à partir d'une telle poudre, procédé selon lequel des zones de chaque couche sont sélectivement fondues par application d'énergie électromagnétique, la sélectivité étant obtenue par l'intermédiaire de masques, par application d'inhibiteurs, d'absorbeurs ou de suscepteurs, ou par concentration de l'énergie appliquée. L'invention concerne également des corps façonnés produits selon ledit procédé.
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