Patent ID: 8618005

Claim:
A glass powder represented as the following Formula 1: a Li 2 O- b K 2 O- c BaO- d B 2 O 3 - e SiO 2 Formula 1 wherein a+b+c+d+e=1, and 0.01â‰¦aâ‰¦0.1, 0.01â‰¦bâ‰¦0.1, 0.01â‰¦câ‰¦0.1, 0.05â‰¦dâ‰¦0.3, and 0.3â‰¦eâ‰¦0.7 are satisfied in terms of mol %, and wherein the glass powder has a particle size of 10 to 100 nm.