| abstract |
The present invention relates to glasses, especially solder glasses, containing the following components on a molar basis: - 37 to 50 molar percent of P 2 O 5 , in particular 39 to 48 molar percent, 0 to 14 molar percent of Al 2 O 3 , in particular 2 to 12 molar percent, 2 to 10 molar percent of B 2 O 3 , percent, Na 2 O 0 ~ 30 mole percent, especially 0-20 mole percent M 2 O 0 to 20 mole percent, especially 12-20% by mole (here which may be M = K, Cs, Rb), Li 2 O 0 to 42 mole percent, especially 0 to 40 mole percent, preferably 17 to 40 mole percent, 0 to 20 mole percent BaO, especially 0 to 20 mole percent, preferably 5 to 20 mole percent, Bi 2 O 3 0 To 10 mole percent, especially 1 to 5 mole percent, preferably 2 to 5 mole percent. |