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Lichthärtende Keramikschlicker für die stereolithographische Herstellung von hochfesten Keramiken
Slurry (7) based on radically polymerizable binder, polymerization initiator and filler, comprises (in wt.%, based on the total mass of the slurry): (a1) at least one acidic monomer (I) (1-30); (a2) at least one non-acidic radically polymerizable monomer (0-50); (b) photoinitiator (0.001-2); and (c) ceramic- and/or glass ceramic particles (30-90). Slurry (7) based on radically polymerizable binder, polymerization initiator and filler, comprises (in wt.%, based on the total mass of the slurry): (a1) at least one acidic monomer of formula (H1G-Y1-) a-X-(Z-P1G) b) (I) (1-30); (a2) at least one non-acidic radically polymerizable monomer (0-50); (b) photoinitiator (0.001-2); and (c) ceramic- and/or glass ceramic particles (30-90). X : (a+b)-valent linear at least 2C aliphatic (optionally substituted), branched at least 3C aliphatic, 6-20C cycloaliphatic, 6-20C bicyclic group, 6-20C tricyclic group and/or 6-20C aromatic group (all optionally comprise at least one ether group), where X is optionally present; P1G : radically polymerizable group; H1G : -COOH-, -PO(OH) 2, -O-PO(OH) 2or -SO 3H; Y1 : divalent linear 2-40C aliphatic, branched 3-40C aliphatic, 5-40C cycloaliphatic or 5-40C aromatic group (all optionally comprise at least one ether-, thioether-, amide- and/or ester group), where Y1 is optionally present; Z : divalent linear 2-40C aliphatic or branched 3-40C aliphatic (both optionally comprise at least one ether-, thioether-, amide- and/or ester group), where Z is optionally present; a : 1-5; and b : 1 or 2. An independent claim is also included for producing a ceramic- or glass ceramic molded part, comprising (i) producing a green compact, in which the above slurry is hardened by locally introducing radiation energy with the formation of geometrical mold of the green compact, (ii) subjecting the green compact to heat treatment for removing the binder (debinding) to obtain a white compact, and (iii) sintering the white compact.
Lichthärtende Keramikschlicker für die stereolithographische Herstellung von hochfesten Keramiken
Slurry (7) based on radically polymerizable binder, polymerization initiator and filler, comprises (in wt.%, based on the total mass of the slurry): (a1) at least one acidic monomer (I) (1-30); (a2) at least one non-acidic radically polymerizable monomer (0-50); (b) photoinitiator (0.001-2); and (c) ceramic- and/or glass ceramic particles (30-90). Slurry (7) based on radically polymerizable binder, polymerization initiator and filler, comprises (in wt.%, based on the total mass of the slurry): (a1) at least one acidic monomer of formula (H1G-Y1-) a-X-(Z-P1G) b) (I) (1-30); (a2) at least one non-acidic radically polymerizable monomer (0-50); (b) photoinitiator (0.001-2); and (c) ceramic- and/or glass ceramic particles (30-90). X : (a+b)-valent linear at least 2C aliphatic (optionally substituted), branched at least 3C aliphatic, 6-20C cycloaliphatic, 6-20C bicyclic group, 6-20C tricyclic group and/or 6-20C aromatic group (all optionally comprise at least one ether group), where X is optionally present; P1G : radically polymerizable group; H1G : -COOH-, -PO(OH) 2, -O-PO(OH) 2or -SO 3H; Y1 : divalent linear 2-40C aliphatic, branched 3-40C aliphatic, 5-40C cycloaliphatic or 5-40C aromatic group (all optionally comprise at least one ether-, thioether-, amide- and/or ester group), where Y1 is optionally present; Z : divalent linear 2-40C aliphatic or branched 3-40C aliphatic (both optionally comprise at least one ether-, thioether-, amide- and/or ester group), where Z is optionally present; a : 1-5; and b : 1 or 2. An independent claim is also included for producing a ceramic- or glass ceramic molded part, comprising (i) producing a green compact, in which the above slurry is hardened by locally introducing radiation energy with the formation of geometrical mold of the green compact, (ii) subjecting the green compact to heat treatment for removing the binder (debinding) to obtain a white compact, and (iii) sintering the white compact.
Lichthärtende Keramikschlicker für die stereolithographische Herstellung von hochfesten Keramiken
Light hardening ceramic dross for stereolithographic production of highly stable ceramics
Barbotine en céramique durcissant à la lumière pour la fabrication stéréo-lithographique de céramiques à haute résistance
FISCHER URS KARL (author) / MOSZNER NORBERT (author) / RHEINBERGER VOLKER (author) / WACHTER WOLFGANG (author) / HOMA JOHANNES (author) / LÄNGLE WERNER (author)
2019-06-12
Patent
Electronic Resource
German
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