| abstract |
An additive manufacturing method wherein the carrier ( 400 ) is within a vessel ( 100 ), the vessel contains the free-radically crosslinkable resin ( 300 ) and a liquid ( 200 ) which is immiscible with the free-radically cross-linkable resin ( 300 ) and has a higher density than the free-radically crosslinkable resin ( 300 ), such that the free-radically crosslinkable resin ( 300 ) floats on top of the liquid ( 200 ) and, prior to each step II), the distance between the carrier ( 400 ) and the free-radically crosslinkable resin ( 300 ) is altered such that a layer of the free-radically crosslinkable resin forms above the uppermost surface ( 420 ), viewed in vertical direction, of the previously deposited layer of the construction material ( 600 ) and at least partially forms contact with this uppermost surface ( 420 ) of the previously deposited layer of the construction material ( 600 ). The free-radically crosslinkable resin ( 300 ) comprises a urethane (meth)acrylate. The invention further relates to the use of a free-radically crosslinkable resin comprising a urethane (meth)acrylate as construction material in a two-phase 3D printing method. |