Powdery coating glass material, coating glass paste using the same and coating glass composition prepared thereby
AssigneeNippon Electric Glass Co., Ltd.
InventorsMasahiko Ohji, Norikazu Fukushima
Life of this patent
Estimating the term…
Abstract
A powdery coating glass material essentially consists of V.sub.2 O.sub.5 5-35 wt. %, ZnO 33-60 wt. %, B.sub.2 O.sub.3 3-25 wt. %, SiO.sub.2 1-15 wt. %, Al.sub.2 O.sub.3 0-5 wt. %, and at least one element 2-20 wt. % selected from the group consisting of MgO, CaO, SrO, and BaO, which coating glass material has a softening point of 600.degree. C. or less. A coating glass composition is prepared by the above powdery coating glass material or a coating glass paste for use in a thick-film technique which contains the above powdery coating glass material. The prepared coating glass composition has a thermal expansion coefficient ranging from 55.times.10.sup.-7 /.degree.C. to 75.times.10.sup.-7 /.degree.C.
Claims5
A powdery coating glass material consisting essentially of V.sub.2 O.sub.5 5-35 wt. %, ZnO 33-60 wt. %, B.sub.2 O.sub.3 3-25 wt. %, SiO.sub.2 1-15 wt. %, Al.sub.2 O.sub.3 0-5 wt. %, and at least one oxide 2-20 wt. % selected from the group consisting of MgO, CaO, SrO, and BaO, having a softening point of 600.degree. C. or less.
A coating glass composition consisting essentially of V.sub.2 O.sub.5 5-35 wt. %, ZnO 33-60 wt. %, B.sub.2 O.sub.3 3-25 wt. %, SiO.sub.2 1-15 wt. %, Al.sub.2 O.sub.3 0-5 wt. %, and at least one oxide 2-20 wt. % selected from the group consisting of MgO, CaO, SrO, and BaO, having a thermal expansion coefficient ranging from 55.times.10.sup.-7 /.degree. C. to 75.times.10.sup.-7 /.degree. C.
A coating glass paste for use in a thick-film technique, which paste is to be fired in a nitrogen atmosphere and comprises a powdery glass material consisting essentially of V.sub.2 O.sub.5 5-35 wt. %, ZnO 33-60 wt. %, B.sub.2 O.sub.3 3-25 wt. %, SiO.sub.2 1-15 wt. %, Al.sub.2 O.sub.3 0-5 wt. %, and at least one oxide 2-20 wt. % selected from the group consisting of MgO, CaO, SrO, and BaO, and an organic vehicle consisting of a solution of an acrylic heat-decomposable binder in terpineol.
Dependencies are inferred from the claim text.