| 摘要 |
The invention relates to radiation-hardening, biocompatible formulations for the generative production by means of stereolithography of medical products, in particular, moulded earpieces, with reduced yellowing of the objects comprising a formulation with a) at least one or more urethane poly(meth)acrylate, b) at least one or more (poly)(meth)acrylate, c) at least hydroxycyclohexylphenylketone at a concentration >075 m% and <7.5 m% and optionally one or more initiators suitable for the relevant radiation range, d) at least one or more or a combination of anaerobic and/or aerobic stabilisers, e) at least a concentration of > 5 m% and <25 m% of surface-modified nanoparticles, f) 0.0001 - 5 m% of dye pigments, g) 0 - 5 m% of conventional additives such as UV-stabilisers or flow additives, wherein the 100 m% and the complete formulation has a viscosity of <10 Pas at 23°C. |
