Transparent laminates comprising inkjet printed conductive lines and methods of forming the same

Patent metadata

Field	Value
Publication number	US-9900980-B2
Application number	US-201615060436-A
Country	US
Kind code	B2
Filing date	Mar 3, 2016
Priority date	Mar 2, 2012
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A transparency including a conductive mesh is disclosed. The conductive mesh is formed by a plurality of inkjet printed electrically conductive lines on a polymer film or a glass, polyacrylate, polycarbonate, or polyurethane substrate, wherein at least one inkjet printed electrically conductive line intersects at least one other inkjet printed electrically conductive line. A flying vehicle including a transparency including a conductive mesh is also disclosed. Additionally, a method of preparing a transparency by laminating a polymer film and a substrate together, wherein a conductive mesh is formed on the polymer film by a plurality of inkjet printed electrically conductive lines, is also disclosed.

First claim

What is claimed is:

1. A transparency comprising:
a substrate;
a polymer film on the substrate; and
a conductive mesh formed by a plurality of inkjet printed electrically conductive lines on the polymer film,
wherein the transparency has a transmittance in the near infrared range of wavelengths of 700 to 900 nm and a visible light transmittance greater than 70%,
wherein the polymer film comprises polycarbonate or polyurethane,
wherein at least one inkjet printed electrically conductive line intersects at least one other inkjet printed electrically conductive line, and
wherein the conductive mesh has a sheet resistance in a range of about 0.15 to about 1,000 ohms/sq.

2. The transparency of claim 1 , wherein the plurality of inkjet printed electrically conductive lines are configured to de-ice the transparency by heating the transparency when an electric current is passed through at least one inkjet printed electrically conductive line.

3. The transparency of claim 1 , wherein the plurality of inkjet printed electrically conductive lines comprise an inkjet printed metal.

4. The transparency of claim 1 , wherein the plurality of inkjet printed electrically conductive lines comprise a metal selected from the group consisting of Cu, Au, Ni, Ag, and combinations thereof.

5. The transparency of claim 1 , wherein the substrate comprises glass, polyacrylate, polycarbonate, or polyurethane.

6. The transparency of claim 1 , further comprising:
an overlayer on the polymer film;
a first bonding film between the overlayer and the polymer film; and
a second bonding film between the polymer film and the substrate.

7. The transparency of claim 6 , wherein the overlayer comprises glass, polycarbonate, polyacrylate, or polyurethane.

8. The transparency of claim 6 , wherein the first bonding film comprises polyurethane, polyvinyl butyral, or silicone.

9. The transparency of claim 6 , wherein the second bonding film comprises polyurethane or polyvinyl butyral.

10. The transparency of claim 1 , wherein the conductive mesh has a sheet resistance in a range of about 0.25 to about 1,000 ohms/sq.

11. A transparency comprising:
a substrate, the substrate comprising polycarbonate or polyurethane; and
a conductive mesh formed by a plurality of inkjet printed electrically conductive lines directly on the substrate,
wherein the transparency has a transmittance in the near infrared range of wavelengths of 700 to 900 nm and a visible light transmittance greater than 70%,
wherein at least one inkjet printed electrically conductive line intersects at least one other inkjet printed electrically conductive line, and
wherein the conductive mesh has a sheet resistance in a range of about 0.15 to about 1,000 ohms/sq.

12. The transparency of claim 11 , wherein the conductive mesh has a sheet resistance in a range of about 0.25 to about 1,000 ohms/sq.

13. A transparency comprising:
a substrate;
a polymer film on the substrate; and
a conductive mesh formed by a plurality of inkjet printed electrically conductive lines on the polymer film,
wherein the transparency has a transmittance in the near infrared range of wavelengths of 700 to 900 nm and a visible light transmittance greater than 70%,
wherein the polymer film comprises polyethylene terephthalate,
wherein at least one inkjet printed electrically conductive line intersects at least one other inkjet printed electrically conductive line, and
wherein the conductive mesh has a sheet resistance in a range of about 4 to about 1,000 ohms/sq.

Assignees

• Ppg Ind Ohio Inc

Inventors

• Uprety Krishna K
• Lakdawala Khushroo H
• Bimanand Alexander

Classifications

• B32B27/08

  of synthetic resin · CPC title

• H05B3/84

  Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields · CPC title

• B32B27/36

  comprising polyesters · CPC title

• B32B27/365

  comprising polycarbonates · CPC title

• B32B15/20

  comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} · CPC title