Patent Number: 6,309,989

Title: Tin-borophosphate glass and sealing material

Abstract: A tin-borophosphate glass of the present invention has main components of SnO, B.sub.2 O.sub.3, and P.sub.2 O.sub.5, consists essentially of, by mole % representation, 30-70% SnO, 5-30% B.sub.2 O.sub.3, and 24-45% (24% exclusive) P.sub.2 O.sub.5, and satisfies a condition of B.sub.2 O.sub.3 /P.sub.2 O.sub.5.gtoreq.0.20 by mole ratio.

Inventors: Kikutani; Takemi (Otsu, JP)

Assignee: Nippon Electric Glass Co., Ltd.

International Classification: C03C 3/19 (20060101); C03C 8/00 (20060101); C03C 8/08 (20060101); C03C 3/12 (20060101); C03C 8/24 (20060101); C03C 003/064 (); C03C 003/066 (); C03C 003/14 (); C03C 003/19 (); C03C 003/17 ()

Expiration Date: 10/30/2018