阅读说明：本技术 包括基于银的导电轨道的玻璃制品 (Glass article comprising silver-based conductive tracks ) 是由 J.雅马尔 M.拉莱门 于 2019-05-22 设计创作，主要内容包括：本发明涉及具有至少一个透明区(3)和至少一个不透明区(4)的玻璃制品(1),所述玻璃制品(1)包括在其表面之一上在至少一个透明区(3)和至少一个不透明区(4)中用基于银的导电轨道(5)涂覆的玻璃板(2),位于所述至少一个透明区(3)中的所述导电轨道(5)在其上表面(50)上和在其侧边(51)上用基于氧化物的透明保护轨道(6)覆盖。(The invention relates to a glass product (1) having at least one transparent region (3) and at least one opaque region (4), said glass product (1) comprising a glass plate (2) coated on one of its surfaces with conductive tracks (5) based on silver in the at least one transparent region (3) and the at least one opaque region (4), said conductive tracks (5) located in the at least one transparent region (3) being covered on their upper surface (50) and on their sides (51) with transparent protective tracks (6) based on an oxide.)

1. A glass article (1) having at least one transparent region (3) and at least one opaque region (4), said glass article (1) comprising a glass plate (2) coated on one of its surfaces with conductive tracks (5) based on silver in the at least one transparent region (3) and the at least one opaque region (4), said conductive tracks (5) located in said at least one transparent region (3) being covered on their upper surface (50) and on their sides (51) with transparent protective tracks (6) based on an oxide.

2. A glass product (1) as claimed in claim 1, wherein the transparent zone (3) is located in a central region of the glass product (1) and constitutes at least 60% of the surface area of the glass product (1).

3. Glass article (1) as claimed in any one of the preceding claims, wherein the electrically conductive tracks (5) represent from 1% to 20%, in particular from 2% to 10%, of the surface of the glass article (1).

4. A glass article (1) as claimed in any one of the preceding claims, wherein the electrically conductive tracks comprise at least an electrically heated wire (5) located in a transparent region (3) of the glass article and a bus bar located in an opaque region (4) of the glass article.

5. Glass article (1) according to the preceding claim, wherein the heating wire has a width of 0.1 to 1 mm, in particular 0.25 to 0.7 mm, and a thickness of 2 to 30 μm, in particular 2 to 20 μm.

6. Glass article (1) according to any one of the preceding claims, wherein the electrically conductive tracks (5) are deposited by screen printing of a silver paste.

7. A glass article (1) as claimed in any of the preceding claims, wherein the thickness of the protection track (6) is 0.1 to 5 μm, in particular 0.2 to 3 μm.

8. Glass article (1) according to any one of the preceding claims, wherein the protective track (6) is based on an oxide of at least one element selected from the group consisting of silicon, titanium, zirconium, tin.

9. Glass article (1) according to any one of the preceding claims, wherein said protective track (6) is deposited by screen printing of a sol-gel solution.

10. A glass article (1) as claimed in any one of the preceding claims, wherein the opaque zone (4) is located at least at the periphery of the glass article and comprises an opaque mineral layer, in particular an enamel layer.

11. A glass article (1) as claimed in any one of the preceding claims, which is an automotive rear window.

12. Method for obtaining a glass article (1) as claimed in any one of the preceding claims, comprising the following successive steps:

-a step of depositing conductive tracks (5) by screen printing of silver paste on the surface of the glass plate (2), then

-a step of depositing a transparent protective track (6) based on an oxide by screen printing of a sol-gel solution, then

-a step of firing the conductive tracks (5) and the protective tracks (6).

13. The method as claimed in the preceding claim, comprising a drying step at the end of each step of depositing the tracks (5, 6).

14. The method as set forth in any one of claims 12 and 13 wherein the firing step is performed simultaneously with the bending of the glass sheet.