Henkel Ag & Company, Kgaa

Tim Welters

Andreas Ferencz

Sascha Poeller

Manuel Schiel

Tanja Rossberg

Rainer Schoenfeld

Ligang Zhao

Uwe Franken

Emilie Barriau

Martin Renkel

Rainer Schönfeld

Sven Wucherpfennig

Rainer SCHÖNFELD

The present invention lies in the field of 3D printing methods. In particular, the invention relates to 3D printing methods for the production of a 3D part in a layer-by-layer manner, wherein the printable composition is a pasty epoxy composition comprising at least one epoxy resin, at least one monomer and/or prepolymer that is polymerizable by exposure to radiation and at least one photoinitiator, wherein the pasty epoxy composition has a viscosity factor (1.5/15) of at least 2 at application temperature.

Dual cure epoxy formulations for 3D printing applications

The present invention lies in the field of 3D printing methods. In particular, the invention relates to 3D printing methods for the production of a 3D part in a layer-by-layer manner, wherein the printable composition is a pasty polyurethane composition comprising at least one polyisocyanate resin, at least one monomer and/or prepolymer that is polymerizable by exposure to radiation and at least one photoinitiator, wherein the pasty polyurethane composition has a viscosity factor (1.5/15) of at least 2 at application temperature.

Dual cure polyurethane formulations for 3D printing applications

The subject matter of the present application is a thermally expandable preparation that can be pumped at application temperatures below 70&#xb0; C., containing (a) at least one first epoxy resin E1 that has an epoxy equivalent weight of at most 280 g/eq and a viscosity of at most 1250 Pa*s at 25&#xb0; C., (b) at least one second epoxy resin E2 that has an epoxy equivalent weight of at least 300 g/eq and a viscosity of at most 250 Pa*s at 25&#xb0; C., (c) at least one hardener that can be thermally activated, (d) at least one propellant that can be thermally activated, and (e) at least 1 wt. % of organic fibres having a fibre length of 0.2 mm to 10 mm.

Thermally expandable preparations

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Hilden, Germany

Tim Welters