Preparation of patterned or electrically-conductive articles

Patent metadata

Field	Value
Publication number	US-9505942-B2
Application number	US-201414311453-A
Country	US
Kind code	B2
Filing date	Jun 23, 2014
Priority date	Jun 23, 2014
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

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 primed article with a patterned material, the method comprising:
providing a transparent polymeric substrate that comprises a transparent polymer support and a dried primer layer disposed 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 latex has a surface polarity of 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%, and

providing a pattern of a patterned material directly onto the dried primer layer,
wherein:
each of the first polymer latex and the second polymer latex in the dried primer layer 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,
at least one of the first polymer latex and the second polymer latex comprises a vinyl polymer further comprises recurring units derived from an alkyl (meth)acrylate having an ester alkyl having at least 2 carbon atoms,
a weight ratio of the first polymer latex to the second polymer latex in the dried primer layer is from 1:3 to and including 3:1,
the first surfactant in the dried primer layer 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 an of C 10 to C 12 hydrocarbons groups,
the second surfactant in the dried primer layer 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,
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 less than 3.35 weight %, based on the total dried primer layer weight.

2. The method of claim 1 , wherein at least a portion of the pattern of patterned material comprises lines having an average line width of less than 15 μm.

3. The method of claim 2 , wherein the at least a portion of the pattern of patterned material is present in a touch screen region of the primed article.

4. The method of claim 1 , comprising:
providing the patterned material directly on the dried primer layer by direct contact of the dried primer layer with a relief printing member carrying the patterned material.

5. The method of claim 1 , wherein the patterned material comprises an electrically-conductive metal or precursor thereof.

6. The method of claim 1 , wherein the patterned material comprises is a photocurable or thermally curable composition and metal particles.

7. The method of claim 6 , further comprising:
curing the photocurable or thermally curable composition in the patterned material.

8. The method of claim 1 , wherein the patterned material comprises a metal particles and the method further comprises:
electrolessly metal plating the pattern of patterned material.

9. A method for providing an electrically-conductive pattern on a transparent polymeric substrate, the method comprising:
providing 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 latex 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%,

providing a pattern of a precursor electrically-conductive material directly onto the dried primer layer, at least a portion of the pattern of precursor electrically-conductive material comprising lines having an average line width of less than 15 μm,
converting the at least a portion of the pattern of precursor electrically-conductive material to a pattern of electrically-conductive material that comprises electrically-conductive lines having an average line width of less than 15 μm,
wherein:
each of the first polymer latex and the second polymer latex in the dried primer layer 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,
at least one of the first polymer latex and the second polymer latex comprises a vinyl polymer further comprises recurring units derived from an alkyl (meth)acrylate having an ester alkyl having at least 2 carbon atoms,
a weight ratio of the first polymer latex to the second polymer latex in the dried primer layer is from 1:3 to and including 3:1,
the first surfactant in the dried primer layer 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,
the second surfactant in the dried primer layer 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,
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 less than 3.35 weight %, based on the total dried primer layer weight.

10. A product article obtained from the method of claim 9 , wherein the product article comprises at least one pattern of an electrically-conductive material wherein at least a portion of the pattern of electrically-conductive material comprises electrically-conductive lines having an average line width of less than 15 μm, which portion of the pattern of electrically-conductive material is disposed directly on the dried primer layer of the transparent polymeric substrate.

11. The method of claim 9 , comprising:
providing the transparent polymeric substrate as a continuous web,
providing one or more individual patterns of a photocurable or thermally curable composition as the precursor electrically-conductive material directly on the dried primer layer in one or more individual portions of the continuous web, respectively, which photocurable or thermally curable composition comprises metal seed particles,
converting each of the one or more individual patterns of photocurable or thermally curable composition by curing to form one or more individual cured patterns in the one or more individual portions,

Assignees

• Eastman Kodak Co

Inventors

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

Classifications

• C09D5/002 Primary

  Priming paints (C09D5/08 takes precedence) · CPC title

• C23C18/1608

  from pretreatment step, i.e. selective pre-treatment · CPC title

• C23C18/1641

  Organic substrates, e.g. resin, plastic · CPC title

• Y10T428/24917

  including metal layer · CPC title

• C09D113/02 Primary

  Latex · CPC title