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US 8,895,899 B2Granted
Glazing comprising a network of conducting wires
OwnerPhilippe Marquetinventor
Life of this patent
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Abstract
The invention relates to glazing units provided with conducting wires. The glazing units according to the invention comprise enameled conducting wires applied by screen-printing. When subjected to a “zebra” test (DIN 52305), in which the conducting wires are oriented parallel to those of the image of the test and the glazing receives the incident light beam at an angle of 30° C. in relation to the normal to the glazing, the increase in distortion in relation to that of the glazing without conducting wires is at most 70% and preferably at most 50%.
Claims8
A glazing comprising,
- a plurality of enameled conducting wires having a width at most equal to 0.1 mm,
- wherein in a “zebra” test in which the enameled conducting wires are oriented parallel to those of an image of the “zebra” test and the glazing receives an incident light beam at an angle of 30° in relation to the normal to the glazing, the increase in distortion is at most 70% of that existing in the absence of the enameled conducting wires with the wires arranged parallel to those of the image,
- wherein the enameled conducting wires have a resistivity at most equal to 3.5Ω□, and
- wherein each conducting wire is obtained by a process comprising depositing a photosensitive emulsion in the form of a wire on a substrate of the glazing through a wire mesh of an applicator that deposits said photosensitive composition and thermally treating said photosensitive composition to form each wire,
- said wire mesh comprising from 50 to 200 wires per centimeter, each wire having a diameter of from 15 to 70 μm, and a surface roughness on a face directed towards a substrate of from 2 to 10 μm.
2 more elements
Dependencies are inferred from the claim text.