Patent ID: 7175700

Claim:
A composite comprising: (a) a resin; and (b) a glass filler, said glass filler comprising the following ingredients: (i) SiO 2 ; (ii) Yb 2 O 3 ; (iii) F; (iv) BaO; and (v) at least one component selected from the group consisting of Al 2 O 3 , P 2 O 5 , Al 2 O 3 —Na 2 O, Al 2 O 3 —K 2 O, Al 2 O 3 —P 2 O 5 , Al 2 O 3 —P 2 O 5 —Na 2 O and Al 2 O 3 —P 2 O 5 —K 2 .