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US 12,600,086 B2Granted
Binder system and devices for 3-D printing and articles produced therefrom
AssigneeVoxeljet AG
InventorsIngo Ederer, Daniel Günther, Ulrich Recknagel, Florian Mögele
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Abstract
The invention relates to a method, a device and a binding agent system for producing three-dimensional models.
Claims20
A binder system for producing a three-dimensional model comprising:
- an adhesive which is hardenable by a supply of heat;
- a solvent;
- a polyol;
- and
- a formaldehyde source for catalyzing a cross-linking reaction;
- wherein the adhesive comprises a novolak and/or a resol;
- wherein the binder system is a liquid in a print head for selectively printing droplets that penetrate a layer of a particulate material.
4 more elements
A binder system for producing a three-dimensional model comprising:
- an adhesive which is hardenable by a supply of heat;
- a solvent including 2-propanol and water;
- a formaldehyde source for catalyzing a cross-linking reaction;
- a polyol;
- and
- a tenside and/or an antifoaming agent;
- wherein the adhesive comprises a novolak and/or a resol;
- wherein the binder system includes less than 30 weight percent of one or more resins, wherein the one or more resins includes the novolak and/or the resol.
5 more elements
A binder system for producing a three-dimensional model comprising:
- an adhesive which is hardenable by a supply of heat;
- and
- a solvent;
- wherein the adhesive comprises a novolak and/or a resol;
- wherein the binder system is a liquid in a print head for selectively printing droplets that penetrate a layer of a particulate material
- wherein the binder system includes less than 40 weight percent of one or more resins, wherein the one or more resins includes the novolak and/or the resol.
3 more elements
Dependencies are inferred from the claim text.