High bismuth oxide based flux and paint compositions for glass substrates
AssigneeThe O'Hommel Company
InventorRobert Prunchak
Life of this patent
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Abstract
A flux composition containing as a first component: 50 to 75% by weight Bi.sub.2 O.sub.3 ; 15 to 25% by weight SiO.sub.2 ; 4 to 10% by weight B.sub.2 O.sub.3 ; 2 to 9% by weight ZnO; 1 to 4% by weight alkali oxide; and optionally as a second component a compound selected from CaO, ZrO.sub.2, MgO, SrO, Al.sub.2 O.sub.3, SnO.sub.2, TiO.sub.2, BaO, MoO.sub.3, F.sub.2 and Fe.sub.2 O.sub.3. The flux composition is typically used as a major component of a paint composition having minor portions of a pigment and liquid medium. The paint compositions are particularly suited for coating glass.
Claims11
A flux composition comprising a first component comprising:
- from about 50 to 75% by weight Bi.sub.2 O.sub.3 ;
- from about 15 to 25% by weight SiO.sub.2 ;
- from about 4 to 10% by weight B.sub.2 O.sub.3 ;
- from about 2 to 10% by weight ZnO;
- and
- from about 1 to 4% by weight alkali oxide,
- wherein all weight percents are based on the total weight of the flux composition.
A paint composition, comprising a flux composition, a pigment and a liquid medium, said flux composition comprising a first component comprising;
- from about 50 to 75% by weight Bi.sub.2 O.sub.3 ;
- from about 15 to 25% by weight SiO.sub.2 ;
- from about 4 to 10% by weight B.sub.2 O.sub.3 ;
- from about 2 to 10% by weight ZnO;
- and
- from about 1 to 4% by weight alkali oxide, wherein all weight percents are based on the total weight of the flux composition.
Dependencies are inferred from the claim text.