Claims
- 1. Transparent sheet with an electrically conductive surface coating, said sheet comprising
- a glass substrate,
- a silver layer,
- a metal coating comprising nickel on said silver layer,
- a surface layer of dielectric oxide on said metal coating on said silver layer,
- at least one contact strip on said surface layer, said contact strip comprising a metal which is diffused from said contact strip through said surface layer to establish electrical contact between said contact strip and said silver layer.
- 2. Transparent sheet as in claim 1 wherein said contact strip comprises a dried suspension of a noble metal and a binding agent, said noble metal being diffused through said surface layer.
- 3. Transparent sheet as in claim 2 wherein said noble metal is a silver powder.
- 4. Transparent sheet as in claim 1 wherein said silver layer has a metal coating comprising nickel on both sides thereof.
- 5. Transparent sheet as in claim 4 comprising a surface layer of dielectric oxide on said metal coating on both sides of said silver layer.
- 6. Transparent sheet as in claim 5 wherein said layers of dielectric oxide both consist of SnO.sub.2.
- 7. Transparent sheet as in claim 3 wherein said surface layer comprises an oxide of at least one metal selected from the group consisting of Sn, Zn, In, Ta, Ti, Zr, Ni and Cr.
- 8. Transparent sheet as in claim 7 wherein said surface layer comprises an oxide of S.sub.n.
- 9. Transparent sheet as in claim 7 wherein said surface layer comprises an oxide of nickel and chrome.
- 10. Transparent sheet as in claim 8 further comprising a plastic film on said surface layer and a further glass substrate on said plastic film.
- 11. Transparent sheet with an electrically conductive surface coating, said sheet comprising
- a glass substrate,
- a silver layer,
- a metal coating comprising nickel on said silver layer,
- a surface layer of nickel oxide and chrome oxide on said metal coating on said silver layer,
- at least one contact strip on said surface layer, said contact strip comprising a metal which is diffused from said contact strip through said surface layer to establish electrical contact between said contact strip and said silver layer.
- 12. Transparent sheet as in claim 11 wherein said silver layer has a metal coating comprising nickel on both sides thereof.
- 13. Transparent sheet as in claim 12 comprising a surface layer of nickel oxide and chrome oxide on each of said metal coatings.
- 14. Transparent sheet with an electrically conductive surface coating, said sheet comprising
- a glass substrate,
- an electrically conductive layer comprising a silver layer,
- a surface layer comprising nickel oxide and chrome oxide on said electrically conductive layer,
- at least one contact strip on said surface layer, said contact strip comprising a metal which is diffused from said contact strip through said surface layer to establish electrical contact between said contact strip and said electrically conductive layer.
- 15. Transparent sheet as in claim 14 wherein said conductive layer comprises a silver layer with a metal coating comprising nickel thereon.
- 16. Transparent sheet as in claim 14 wherein said conductive layer comprises a silver layer with a metal coating of nickel on both sides thereof.
- 17. Transparent sheet as in claim 14 comprising a layer of nickel oxide and chrome oxide on each side of said electrically conductive layer.
Priority Claims (1)
Number |
Date |
Country |
Kind |
35436948 |
Dec 1985 |
DEX |
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Parent Case Info
This is a divisional application of Ser. No. 881,712 filed July 3, 1986 now U.S. Pat. No. 4,830,876.
US Referenced Citations (11)
Divisions (1)
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Number |
Date |
Country |
Parent |
881712 |
Jul 1986 |
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