Transparent composite article with electrically-conductive pattern

Patent metadata

Field	Value
Publication number	US-2025034345-A1
Application number	US-202318532056-A
Country	US
Kind code	A1
Filing date	Dec 7, 2023
Priority date	Jul 26, 2023
Publication date	Jan 30, 2025
Grant date	—

Abstract

A composite article has a transparent polymeric film and an electrically-conductive, metal-containing pattern disposed on a surface of the transparent polymeric film. The electrically-conductive, metal-containing pattern has, in order outwardly from a surface of the transparent polymeric film: a metallic pattern having a first surface facing the transparent polymeric film and an opposing second surface; and a pattern of a catalytic ink disposed over at least a portion of the second surface of the metallic pattern. The transparent polymeric film with the electrically-conductive, metal-containing pattern disposed thereon is sandwiched between two panes of transparent rigid substrates and serves as a transparent laminating film to form the composite article.

First claim

1 . A composite article comprising:
a transparent polymeric film; an electrically-conductive, metal-containing pattern disposed on a surface of the transparent polymeric film, wherein the electrically-conductive, metal-containing pattern comprises, in order outwardly from a surface of the transparent polymeric film:
a metallic pattern having a first surface facing the transparent polymeric film and an opposing second surface; and
a pattern of a catalytic ink disposed over at least a portion of the opposing second surface of the metallic pattern;
wherein the transparent polymeric film with the electrically-conductive, metal-containing pattern disposed thereon is sandwiched between two panes of transparent rigid substrates and serves as a transparent laminating film to form the composite article.

2 . The composite article of claim 1 , wherein the transparent polymeric film comprises poly(vinyl butyral), poly(ethylene vinyl acetate), or an ionomeric polymer.

3 . The composite article of claim 1 , further comprising a second transparent polymeric film that is sandwiched between one of the two panes of transparent rigid substrates and a third pane of a transparent rigid substrate to serve as a second transparent laminating film.

4 . The composite article of claim 1 , wherein the two panes of transparent rigid substrates are two panes of the same or different glasses or polycarbonates.

5 . The composite article of claim 3 , wherein the second transparent laminating film comprises poly(vinyl butyral) film, poly(ethylene vinyl acetate) film, or an ionomeric polymer.

6 . The composite article of claim 1 , wherein the catalytic ink pattern is non-conductive.

7 . The composite article of claim 1 , wherein the catalytic pattern comprises silver nanoparticles.

8 . The composite article of claim 1 , wherein the metallic pattern comprises copper, gold, aluminum, silver, or platinum, or a combination of two or more of these metals.

9 . The composite article of claim 1 , wherein the metallic pattern comprises a plurality of features that can be spaced apart or connected.

10 . The composite article of claim 1 , comprising two or more of the same or different electrically-conductive metal-containing patterns, each sandwiched between the two panes of transparent rigid substrates.

11 . The composite article of claim 1 , wherein the transparent polymeric film comprises poly(vinyl butyral).

12 . The composite article of claim 1 , that is a vehicle windshield and the electrically-conductive metal-containing pattern is an antenna pattern.

13 . The composite article of claim 1 , having an optical transparency of at least 50%.

14 . The composite article of claim 1 , further comprising a first agent that is disposed on and substantially conforming to the first surface of the metallic pattern, forming a darkened surface on the metallic pattern.

15 . The composite article of claim 14 , further comprising a second darkening agent being disposed over at least a portion of the opposing second surface of the metallic pattern, forming a second darkened surface on the metallic pattern.

16 . The composite article of claim 15 , wherein the transparent rigid substrates are composed of the same or different glass.

17 . The composite article of claim 1 , wherein the transparent rigid substrates are composed of the same or different glass.

Assignees

• Eastman Kodak Co

Inventors

• Honan James S
• Farmer Danielle A
• Spaulding Kevin Edward

Classifications

• B32B17/10275

  on interlayer · CPC title

• B32B17/10192

  patterned in the form of columns or grids · CPC title

• B32B17/10935

  as a preformed layer, e.g. formed by extrusion · CPC title

• B32B27/08

  of synthetic resin · CPC title

• B32B2605/08

  Cars · CPC title