| abstract |
The present invention relates to a material comprising a matrix, apatite and at least one europium complex compound of the general formula: MexmEuy3Rzn, wherein mx + 3y = nz, Mexm = Mex'm' + Mex''m'' + ..., Rzn = Rz'n' + Rz''n'' + ..., mx = m'x' + m''x'' + ..., nz = n'z' + n''z'' + ... and x1,0y0,01. Me represents yttrium, lanthane, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, ytterbium, aluminium, bismuth, tin, titanium, manganese, calcium, barium, zinc, cadmium, sodium, potassium, rubidium or caesium. R represents oxygen, sulphur, fluorine, chlorine, bromine, phosphorus, boron, vanadium, molybdenum, tungsten, germanium or compounds thereof, while m and n represent the charge of a Me or R ion respectively. The composition for producing this material comprises from 0.01 to 10.0 wt.% of apatite, from 0.01 to 10.0 wt.% of complex compound, the balance being a matrix-forming agent such as a polymer, a fibre, a glass-forming composition or a lacquer- or adhesive-forming substance. |