Electronic devices and precursor articles

Patent metadata

Field	Value
Publication number	US-9606652-B2
Application number	US-201414311466-A
Country	US
Kind code	B2
Filing date	Jun 23, 2014
Priority date	Jun 23, 2014
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A first polymer latex and second polymer latex can be mixed to form a dried primer layer on a substrate to adhere patterned materials having fine lines. The first polymer latex comprises a first polymer and a first surfactant such that a dried coating of the first polymer latex has a surface polarity of at least 50%. The second polymer latex comprises a second polymer and a second surfactant such that a dried coating of the second polymer latex has a surface polarity of less than or equal to 27%. Moreover, a dried coating of the mixture has a surface polarity of at least 15% and up to and including 50%. Primed substrates are useful for preparing electrically-conductive articles having electrically-conductive fine lines directly on a dried primer layer by applying a patterned material to a substrate. Such articles can be used as touch screen displays in various electronic devices.

First claim

The invention claimed is:

1. A method for providing a plurality of precursor articles, the method comprising:
providing a continuous web of a transparent polymeric substrate that comprises a transparent polymer support and a dried primer layer disposed directly on at least one supporting surface of the transparent polymer support, the dried primer layer comprising a mixture of:
a first polymer latex comprising a first polymer and a first surfactant such that a dried coating of the first polymer latex has a surface polarity of at least 50%, and
a second polymer latex comprising a second polymer and a second surfactant that is different from the first surfactant such that a dried coating of the second polymer has a surface polarity less than or equal to 27%,
wherein the dried primer layer has a surface polarity of at least 15% and up to and including 50%,

forming a first curable pattern directly on the dried primer layer in a first portion of the continuous web, the first curable pattern comprising a photocurable or thermally curable composition comprising seed metal particles, by direct contact of the dried primer layer in the first portion of the continuous web with a flexographic printing member carrying the photocurable or thermally composition,
advancing the continuous web comprising the first portion comprising the first curable pattern to be proximate a curing station and curing the first curable pattern, thereby forming a first cured pattern on the first portion, which first cured pattern comprises the seed metal particles,
forming a second curable pattern directly on the dried primer layer in a second portion of the continuous web, the second curable pattern comprising the same or different photocurable or thermally curable composition comprising the same or different seed metal particles, by direct contact with a flexographic printing member carrying the same or different photocurable or thermally curable composition,
advancing the continuous web comprising the second portion comprising the second curable pattern to be proximate a curing station and curing the second curable pattern, thereby forming a second cured pattern on the second portion, which second cured pattern comprises the same or different seed metal particles,
optionally, carrying out the forming and advancing features one or more times for additional respective portions of the continuous web using the same or different curable or thermally curable composition and the same or different flexographic printing member to form additional cured patterns on the additional respective portions, and
winding up the continuous web comprising first, second, and optional additional cured patterns to provide a roll of a plurality of precursor articles.

2. The method of claim 1 , wherein the same seed metal particles are present in each of the multiple cured patterns, which seed metal particles are gold particles, silver particles, copper particles, palladium particles, or platinum particles.

3. The method of claim 1 , wherein the same photocurable or thermally curable composition is used in each forming feature for each curable pattern.

4. The method of claim 1 , wherein the same photocurable composition is used in each forming feature for each curable pattern, which photocurable composition comprises a free radical curable composition, an acid catalyzed curable composition, or both a free radical curable composition and an acid catalyzed curable composition.

5. The method of claim 1 , wherein the continuous web has an integrated transmittance of at least 88%, and comprises the dried primer layer disposed directly on the transparent polymer support that is a transparent polyester support.

6. The method of claim 1 , wherein each of the first polymer latex and the second polymer latex comprises a vinyl polymer independently comprising at least 75 weight % and up to and including 90 weight % of recurring units derived from glycidyl (meth)acrylate, based on the total weight of the vinyl polymer.

7. The method of claim 6 , wherein at least one of the first polymer latex and the second polymer latex comprises a vinyl polymer further comprising recurring units derived from an alkyl (meth)acrylate having an ester alkyl group having at least 2 carbon atoms.

8. The method of claim 1 , wherein the weight ratio of the first polymer latex to the second polymer latex in the dried primer layer is from 1:3 and to and including 3:1, the first surfactant is present in the dried primer layer in an amount of at least 1 weight % and up to and including 3 weight %, the second surfactant is present in the dried primer layer in an amount of at least 0.35 weight % and up to and including 1.1 weight %, both based on the total dried primer layer weight, and the total amount of the first and second surfactants in the dried primer layer is up to and including 3.35 weight %, based on the total dried primer layer weight.

9. The method of claim 1 , wherein the first surfactant is a sodium α-olefin (C 14 -C 16 ) sulfonate, and the second surfactant is an ammonium salt of a sulfated polyethoxy nonylphenol.

10. The method of claim 1 , wherein the first surfactant is a compound represented by R—CH 2 —CH═CH—CH 2 —S(═O) 2 O − Na + wherein R is a C 10 , C 11 , or C 12 hydrocarbon group, or mixtures of such compounds with different R groups that are any of C 10 to C 12 hydrocarbons groups; and the second surfactant is represented by R′-phenyl-(O—CH 2 CH 2 ) n —S(═O)O 2 − NH 4 + wherein R′ is a C 8 to C 12 hydrocarbon group, and n is 3 to 10.

Assignees

• Bauer Charles Leo
• Landry-Coltrain Christine Joanne
• Honan James Stephen
• Schell Brian Andrew
• Kane Richard Thomas
• Eastman Kodak Co

Inventors

• Bauer Charles Leo
• Landry-Coltrain Christine Joanne
• Honan James Stephen
• Schell Brian Andrew
• Kane Richard Thomas

Classifications

• C09D11/101

  Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing · CPC title

• C08K5/36

  Sulfur-, selenium-, or tellurium-containing compounds {(C08K5/0091 takes precedence)} · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• C08K5/41

  Compounds containing sulfur bound to oxygen · CPC title

• C09D11/107

  from unsaturated acids or derivatives thereof · CPC title