Conductive element precursor and conductive pattern formation

Patent metadata

Field	Value
Publication number	US-9304395-B2
Application number	US-201414265418-A
Country	US
Kind code	B2
Filing date	Apr 30, 2014
Priority date	Apr 30, 2014
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A black-and-white silver halide conductive film element precursor has at least one first non-color hydrophilic photosensitive layer comprising a silver halide and a first hydrophilic overcoat disposed over the first non-color hydrophilic photosensitive layer. This first hydrophilic overcoat is the outermost layer and contains one or more immobilized radiation absorbers such as immobilized ultraviolet radiation absorbers, in a total amount of at least 5 mg/m 2 . These precursors can be imagewise exposed and processed to provide conductive film elements with various conductive silver patterns (or grids) with narrow conductive silver lines on one or both sides. In many instances, the precursors have the same or different layers on both sides of a transparent substrate and the resulting conductive film element has the same or different conductive silver patterns on both sides.

First claim

The invention claimed is:

1. A black-and-white silver halide conductive film element precursor comprising a transparent substrate comprising a first supporting side and an opposing second supporting side, and having disposed on the first supporting side:
a first non-color hydrophilic photosensitive layer comprising a silver halide coverage of at least 3,500 mg Ag/m 2 , and
a first hydrophilic overcoat disposed over the first non-color hydrophilic photosensitive layer, which first hydrophilic overcoat is the outermost layer on the first supporting side of the transparent substrate, and the first hydrophilic overcoat comprises: (a) one or more immobilized radiation absorbers in a total amount of at least 5 mg/m 2 , and optionally (b) one or more silver halides in a total amount of at least 5 mg Ag/m 2 .

2. The conductive film element precursor of claim 1 , wherein the one or more immobilized radiation absorbers are present in the first hydrophilic overcoat in a total amount of at least 5 mg/m 2 and up to and including 100 mg/m 2 .

3. The conductive film element precursor of claim 1 , wherein each of the one or more immobilized radiation absorbers has a c(logP) value of at least 5.

4. The conductive film element precursor of claim 1 , wherein at least one of the one or more immobilized radiation absorbers is an immobilized ultraviolet radiation absorber having an absorption λ max of at least 200 nm and up to and including 450 nm.

5. The conductive film element precursor of claim 1 , wherein at least one of the one or more immobilized radiation absorbers is an immobilized ultraviolet radiation absorber that is selected from one or more of the classes of compounds consisting of benzotriazoles, benzophenones, cinnamic acid compounds, triazines, stilbenes, benzoxazoles, dibenzoylmethanes, cyanoesters, cyanosulfones, cyanoacrylates, formamindines, and benzoazinones.

6. The conductive film element precursor of claim 1 , wherein the dry thickness of the first hydrophilic overcoat is at least 100 nm and up to and including 800 nm.

7. The conductive film element precursor of claim 1 , further comprising a radiation absorbing layer between the first supporting side of the transparent substrate and the first non-color hydrophilic photosensitive layer.

8. The conductive film element precursor of claim 1 , wherein the first non-color hydrophilic photosensitive layer comprises silver halide coverage of at least 3,500 mg Ag/m 2 and up to and including 8,000 mg Ag/m 2 .

9. The conductive film element precursor of claim 1 , further comprising on the opposing second supporting side of the transparent substrate, a second non-color hydrophilic photosensitive layer and a second hydrophilic overcoat disposed over the second non-color hydrophilic photosensitive layer,
the second hydrophilic overcoat comprising: (a) one or more immobilized radiation absorbers in a total amount of at least 5 mg/m 2 , and optionally (b) one or more silver halides in a total amount of at least 5 mg Ag/m 2 .

10. The conductive film element precursor of claim 9 , wherein the one or more immobilized radiation absorbers in both of the first hydrophilic overcoat and the second hydrophilic overcoat are the same materials and are present in the same total amount, within ±20%.

11. The conductive film element precursor of claim 9 , wherein at least one of the one or more immobilized radiation absorbers is an immobilized ultraviolet radiation absorber that is present in an amount of at least 5 mg/m 2 and up to and including 100 mg/m 2 , and the at least one immobilized ultraviolet radiation absorber has a c(logP) value of at least 5.

12. A method for preparing a conductive film element comprising:
providing the black-and-white silver halide conductive element film precursor of claim 1 ,
imagewise exposing the black-and-white silver halide conductive film element precursor to provide a latent pattern in the first non-color hydrophilic photosensitive layer,
converting the silver halide in the latent pattern to a silver metal pattern by contacting the latent pattern with a developing solution comprising a silver halide developing agent,
removing unconverted silver halide from the first non-color hydrophilic photosensitive layer, leaving a silver metal pattern corresponding to the latent pattern, and
optionally further treating the silver metal pattern to enhance its conductivity.

13. The method of claim 12 , wherein at least one of the one or more immobilized radiation absorbers in the first hydrophilic overcoat is an immobilized ultraviolet radiation absorbers that is present in a total amount of at least 5 mg/m 2 and up to and including 100 mg/m 2 , and the immobilized ultraviolet radiation absorber has a c(logP) value of at least 5.

14. The method of claim 12 , wherein each of the one or more immobilized radiation absorbers has a λ max absorption of at least 200 nm and up to and including 450 nm.

15. The method of claim 12 , wherein the first non-color hydrophilic photosensitive layer comprises one or more silver halides at a total coverage of at least 3,500 mg Ag/m 2 and up to and including 8,000 mg Ag/m 2 , and the first hydrophilic overcoat further comprises the same or different silver halide in a coverage of at least 5 mg Ag/m 2 and up to and including 150 mg Ag/m 2 .

16. The method of claim 12 , wherein the conductive film element precursor further comprises on the opposing second supporting side of the transparent substrate, a second non-color hydrophilic photosensitive layer and a second hydrophilic overcoat disposed over the second non-color hydrophilic photosensitive layer,
the second hydrophilic overcoat comprising one or more immobilized ultraviolet radiation absorbers in a total amount of at least 5 mg/m 2 , and optionally silver halide in a coverage of at least 5 mg Ag/m 2 .

17. A conductive film element comprising:
a transparent substrate that is flexible, and the conductive film element comprising a first supporting side and an opposing second supporting side, and comprising on the first supporting side:
a first non-color hydrophilic layer comprising a conductive silver pattern, and the conductive film element having an integrated transmittance of at least 80% in the conductive silver pattern, and
a first hydrophilic overcoat disposed over the first non-color hydrophilic layer, which first hydrophilic overcoat is the outermost layer on the first supporting side of the transparent substrate, and the first hydrophilic overcoat comprises one or more immobilized radiation absorbers in a total amount of at least 5 mg/m 2 .

18. The conductive film element of claim 17 , wherein at least one of the one or more immobilized radiation absorbers is an immobilized ultraviolet radiation absorber having a c(logP) value of at least 5.

19. The conductive film element of claim 17 , further comprising on the opposing second supporting side:
a second non-color hydrophilic layer comprising a conductive silver pattern, and
a second hydrophilic overcoat disposed over the first non-color hydrophilic layer, which second hydrophilic overcoat is the outermost layer on the second supporting side of the transparent substrate, and the second hydrophilic overcoat comprising one or more immobilized radiation absorbers in a total amount of at least 5 mg/m 2 .

20. The conductive film element of claim 19 , wherein the conductive silver pattern on the first supporting side of the transparent substrate and the conductive silver pattern on the opposing second supporting side of th

Assignees

• Lushington Kenneth James
• Eastman Kodak Co

Inventors

• Lushington Kenneth James

Classifications

• G03F7/30

  Imagewise removal using liquid means · CPC title

• G03F7/2002

  with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image · CPC title

• G03F7/06 Primary

  Silver salts (G03F7/075 takes precedence) · CPC title

• G03F7/091

  characterised by antireflection means or light filtering or absorbing means, e.g. anti-halation, contrast enhancement · CPC title