Technological watch

A flame retardant curable composition comprises at least one isocyanurate-containing monomer having at least one (meth)acrylate group in an amount of at least 25 wt% based on the total weight of polymerizable components; a phosphorus-containing non-reactive filler in an amount of at least 5 wt% based on the total weight of polymerizable components, and a free radical photoinitiator, wherein the phosphorus-containing non-reactive filler is in a solid form at room temperature and contains at least 10% by weight of phosphorus, and wherein the composition is substantially free of any halogens. The cured composition and three dimensional printed articles comprising the cured composition are also described.