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1. WO2023280683 - PHOTO- AND THERMALLY CURABLE RESIN USEFUL IN ADDITIVE MANUFACTURING PROCESSES

Publication Number WO/2023/280683
Publication Date 12.01.2023
International Application No. PCT/EP2022/068143
International Filing Date 30.06.2022
IPC
C08G 18/10 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08F 290/06 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
290Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
02on to polymers modified by introduction of unsaturated end groups
06Polymers provided for in subclass C08G52
C08G 18/02 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
02of isocyanates or isothiocyanates only
C08G 18/24 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
08Processes
16Catalysts
22containing metal compounds
24of tin
C08G 18/44 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
42Polycondensates having carboxylic or carbonic ester groups in the main chain
44Polycarbonates
C08G 18/48 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
48Polyethers
CPC
B29C 64/112
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
112using individual droplets, e.g. from jetting heads
B29C 64/124
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
124using layers of liquid which are selectively solidified
B29C 64/165
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
165using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
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
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
C08F 283/006
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
283Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
006on to polymers provided for in C08G18/00
Applicants
  • COVESTRO DEUTSCHLAND AG [DE]/[DE]
Inventors
  • FISCHER, Anne
  • BUESGEN, Thomas
  • ACHTEN, Dirk
  • SUETTERLIN, Jan
Agents
  • DAVEPON, Björn
Priority Data
21184735.509.07.2021EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PHOTO- AND THERMALLY CURABLE RESIN USEFUL IN ADDITIVE MANUFACTURING PROCESSES
(FR) RÉSINE PHOTODURCISSABLE ET THERMODURCISSABLE UTILE DANS DES PROCÉDÉS DE FABRICATION ADDITIVE
Abstract
(EN) A resin comprises: A) a multifunctional (meth)acrylate; B) an NCO-functional polyurethane; C) a radical starter and D) a catalyst. The multifunctional (meth)acrylate A) has a viscosity at 23 °C as determined according to DIN EN ISO 2884-1 of ≤ 10000 mPa·s, the NCO- functional polyurethane B) has an average NCO group functionality of ≥ 2 and an equivalent molecular weight with respect to NCO groups of > 300 g/mol, the catalyst D) is an isocyanate trimerization catalyst and the resin is free from NCO-reactive compounds or, if NCO-reactive compounds are present in the resin, the molar ratio of NCO groups to NCO- reactive groups is ≥ 5:1.
(FR) L'invention concerne une résine comprenant : A) un (méth)acrylate multifonctionnel ; B) un polyuréthane à fonction NCO ; C) un initiateur radicalaire ; et D) un catalyseur. Le composé (méth)acrylate multifonctionnel (A) présente une viscosité à 23 °C telle que déterminée selon la norme DIN EN ISO 2884-1 ≤ 10000 mPa·s, le polyuréthane à fonction NCO (B) comporte une fonctionnalité de groupe NCO moyenne de ≥ 2 et un poids moléculaire équivalent par rapport aux groupes NCO > 300 g/mol, le catalyseur (D) étant un catalyseur de trimérisation d'isocyanate, et la résine étant exempte de composés réagissant avec NCO ou, si des composés réagissant avec NCO sont présents dans la résine, le rapport molaire des groupes NCO sur les groupes réagissant avec NCO est ≥ 5:1.
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