Ivoclar Vivadent Ag

Io Tech Group Ltd.

Lorenz Josef Bonderer

Christian Ritzberger

Michael Zenou

Wolfgang Josef Wachter

Jürgen Rudolf Laubersheimer

Jörg Ebert

Rudolf Jussel

Markus Rampf

Theresa Sujata Maria Senti

Zeno John

Jürgen Lauberscheimer

Joachim Reissner

Jürgen Laubersheimer

Nina Maria Mathis

John Zeno

The invention relates to a material for use as construction material for energy-pulse-induced transfer printing, which contains (a) at least one polymerizable binder, (b) at least one volume expansion component, (c) at least one initiator for the polymerization and (d) preferably at least one energy transformation component. The invention furthermore relates to a process for producing three-dimensional objects using the material.

Process and material for producing 3D objects by energy-pulse-induced transfer printing

A process control method for a 3D-printing process using a 3D printer. The 3D printer has a build platform, a light source, a receiving device for printing material and a control device by which an object can be produced layer-wise or continuously from the printing material. The method includes using a thermal imaging camera, the output signal of which is transmitted to the control device, connected to the 3D printer, The method includes the following steps:

Process control method for a 3D-printing process

A material for use as support material for energy-pulse-induced transfer printing, which contains (a) at least one energy transformation component, (b) at least one volume expansion component and (c) at least one binder and which has a viscosity at 25° C. of from 0.2 Pas to 1000 Pas and a surface tension at 25° C. of from 20 to 150 mN/m. The invention furthermore relates to a process for producing three-dimensional objects using the support material.

Process for energy-pulse-induced transfer printing

Support material for energy-pulse-induced transfer printing

A stereolithography apparatus having a build platform and a tray, into which the build platform can be immersed, wherein at the bottom in or on the tray a light-transmissive film is formed or arranged and is elastically deformable, having a light source or energy source underneath the film, the tray can be filled with flowable printing material, a control apparatus controls the movement of the build platform relative to the film and the control apparatus superimposes, during the substantially vertical release movement between a slice of a structure, produced by stereolithography, on the build platform from the film, upon the release movement a substantially horizontal, in particular translational, transverse movement which transverse movement extends at an angle between 60 and 120&#xb0; relative to the release movement and has alternating, in particular reciprocating, movement directions.

Stereolithography apparatus with periodic, transverse movement with an amplitude of .8 to 15 millimeters

The invention relates to a material for use as support material for energy-pulse-induced transfer printing, which contains (a) at least one energy transformation component, (b) at least one volume expansion component and (c) at least one binder and which has a viscosity at 25&#xb0; C. of from 0.2 Pas to 1000 Pas and a surface tension at 25&#xb0; C. of from 20 to 150 mN/m. The invention furthermore relates to a process for producing three-dimensional objects using the support material.

Modelling material which contains (a) at least one radically polymerizable monomer, (b) at least one initiator for the radical polymerization and (c) at least one inert component. The inert component (c) is selected from phthalates, polyethylene glycols (PEG), polypropylene glycols (PPG), PEG-PPG copolymers, glycerol derivatives, ethoxylated or propoxylated glycerol, ethylenediamine tetrakispropoxylates and ethylenediamine tetrakisethoxylates. The material is suitable in particular for the production of models of dental restorations for investment casting processes.

Burn-out dental modelling material

Modelling material which includes (a) at least one radically polymerizable monomer, (b) at least one initiator for the radical polymerization and (c) at least one inert component. The inert component (c) is soluble in the polymer formed by polymerization of the monomer (a), wherein the solubility of component (c) decreases as the temperature increases, with the result that a phase separation takes place above a particular temperature. The material is suitable in particular for the production of models of dental restorations for investment casting processes.

Polymer-based burn-out material for the lost-wax technique

The invention relates to a stereolithography device having a replaceable bottle to receive printing material, which bottle may be stored in or on a bottle holder and from which printing material may be withdrawn into the stereolithography device by means of a device-sided holder. A filling level sensor is attached to the bottle holder by which a filling level of the printing material in the bottle can be detected. A mini memory device is associated to the bottle where the stereolithography device stores information regarding the printing material in the bottle, in particular the filling level thereof.

Stereolithography device

Slip for the stereolithographic preparation of ceramic or glass ceramic shaped parts which comprises (a) at least one radically polymerizable monomer, (b) at least one photoinitiator, (c) ceramic and/or glass ceramic particles and (d) at least one non-ionic surfactant.

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Sargans, Switzerland

Lorenz Josef Bonderer