US6872500B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of patterning an electroconductive layer on a support
Assignee: Eastman Kodak Co
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Filing: 2003-08-26
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Granted: 2005-03-29
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Expires: 2023-08-26
Abstract
Abstract An element for making patterns on an electroconductive substrate, the element comprising a support, on which is disposed: a) a conductive layer containing an electrically conductive polymer, a polyanion and a conductivity enhancing agent; and b) a mixing layer containing a thermally mobile material; wherein, upon imagewise heating the mixing layer, the thermally mobile material mixes with the conductive layer, thereby causing the initial surface resistivity (SR) of the conductive layer to imagewise increase from an initial value SR i , which is lower than 10 5 Ω/square, to SR i Δ, Δ being at least 10 2 .
Inventors
- 👤 Mitchell S. Burberry
- 👤 Charles C. Anderson
- 👤 Mark Lelental
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/105; H05K3/02; H05K2201/00; H05K2201/03; H05K2201/032; H05K2201/0329; H10; H10K; H10K71/00; H10K71/20; H10K71/211; H10K85/00; H10K85/10; H10K85/111; H10K85/113; H10K85/1135; Y; Y10; Y10S; Y10S430/00; Y10S430/165
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
99 words
An element for making patterns on an electroconductive substrate, the element comprising a support, on which is disposed: a) a conductive layer containing an electrically conductive polymer, a polyanion and a conductivity enhancing agent; and b) a mixing layer containing a thermally mobile material; wherein, upon imagewise heating the mixing layer, the thermally mobile material mixes with the conductive layer, thereby causing the initial surface resistivity (SR) of the conductive layer to imagewise increase from an initial value SR i , which is lower than 10 5 Ω/square, to SR i Δ, Δ being at least 10 2 .
Claim 2
Dependent Claim
99 words
An element for making patterns on an electroconductive substrate, the element comprising a support, on which is disposed: a) a conductive layer containing an electrically conductive polymer, a polyanion and a conductivity enhancing agent; and b) a mixing layer containing a thermally mobile material; wherein, upon imagewise heating the mixing layer, the thermally mobile material mixes with the conductive layer, thereby causing the initial surface resistivity (SR) of the conductive layer to imagewise increase from an initial value SR i , which is lower than 10 5 Ω/square, to SR i Δ, Δ being at least 10 2 .
Claim 3
Dependent Claim
14 words
The element of claim 1 patterned for use in an electronic or semiconductor device.
Claim 4
Dependent Claim
25 words
The element of claim 1 patterned for use as a printed circuit board, an integrated circuit, a display, an electroluminescent device or a photovoltaic cell.
Claim 5
Dependent Claim
16 words
The element of claim 1 wherein the thermally mobile material is contained in a polymeric matrix.
Claim 6
Dependent Claim
15 words
The element of claim 4 wherein the polymeric matrix comprises a crosslinked or branched polymer.
Claim 7
Dependent Claim
13 words
The element of claim 5 wherein the crosslinked polymer is poly(styrene-co-indene-co-divinylbenzene), poly(styrene-co-acrylonitrile-co-divinylbenzene), poly(styrene-co-butadiene-co-divinylbenzene).
Claim 8
Dependent Claim
20 words
The element of claim 1 wherein the thermally mobile material is a pigment, a dye, or a combination of both.
Claim 9
Dependent Claim
14 words
The element of claim 4 wherein the polymeric matrix is a thermally mobile material.
Claim 10
Dependent Claim
97 words
The element of claim 1 wherein the thermally mobile material has recurring units of the following formula: wherein: R 1 represents cyano, isocyanate, azide, sulfonyl, nitro, phosphoric, phosphonyl, heteroaryl, or where X is O, S, NR, or N + (R) 2 ; R 3 is R, OR, O—M + , OCOOR, SR, NHCOR, NHCON(R) 2 , N(R) 2 or N + (R) 3 ; M + is an alkali or ammonium moiety; R is hydrogen, halogen, or an alkyl or cycloalkyl group; and R 2 is hydrogen, alkyl or from the same list as R 1 .
Claim 11
Dependent Claim
15 words
The element of claim 1 wherein the conductive layer contains an optional film-forming polymeric binder.
Claim 12
Dependent Claim
22 words
The element of claim 1 wherein the conductivity enhancing agent is an organic compound containing dihydroxy, poly-hydroxy, carboxyl, amide, or lactam groups.
Claim 13
Dependent Claim
117 words
The element of claim 11 wherein the organic compound containing dihydroxy, poly-hydroxy, carboxyl, amide, or lactam groups is: (a) represented by the following Formula II: (OH) n —R—(COX) m II wherein m and n are independently an integer of from 1 to 20, R is an alkylene group having 2 to 20 carbon atoms, an arylene group having 6 to 14 carbon atoms in the arylene chain, a pyran group, or a furan group, and X is —OH or —NYZ, wherein Y and Z are independently hydrogen or an alkyl group; or (b) a sugar, sugar derivative, polyalkylene glycol, or glycerol compound; or (c) selected from the group consisting of N-methylpyrrolidone, pyrrolidone, caprolactam, N-methyl caprolactam, or N-octylpyrrolidone.
Claim 14
Dependent Claim
50 words
The element of claim 1 wherein said conductivity enhancing agent is a N-methylpyrrolidone, pyrrolidone, caprolactam, N-methylcaprolactam, N-octylpyrrolidone, sucrose, glucose, fructose, lactose, sugar alcohol, 2-furan carboxylic acid, 3-furan carboxylic acid, sorbitol, glycol, ethylene glycol, glycerol, diethylene glycol, or triethylene glycol, or a mixture of any two or more of these compounds.
Claim 15
Dependent Claim
18 words
The element of claim 1 wherein said conductivity enhancing agent is N-methylpyrrolidone, pyrrolidone, caprolactam, N-methyl caprolactam, or N-octylpyrrolidone.
Claim 16
Dependent Claim
17 words
The element of claim 1 wherein said conductivity enhancing agent is ethylene glycol, diethylene glycol or glycerol.
Claim 17
Dependent Claim
31 words
The element of claim 1 wherein said conductivity enhancing agent is one or more than one compound selected from the group consisting of N-methylpyrrolidone, sorbitol, ethylene glycol, glycerol, and diethylene glycol.
Claim 18
Dependent Claim
21 words
The element of claim 12 , wherein n and m independently of one another denote an integer from 2 to 8.
Claim 19
Dependent Claim
19 words
The element of claim 11 wherein the organic compound containing lactam groups is n-methylpyrrolidone, pyrrolidone, caprolactam, n-methylcaprolactam, or n-octylpyrrolidone.
Claim 20
Dependent Claim
29 words
The element of claim 12 wherein the conductivity enhancing agent is sucrose, glucose, fructose, lactose, sorbitol, mannitol, 2-furancarboxylic acid, 3-furancarboxylic acid, ethylene glycol, glycerol, di- or triethylene glycol. solution.
Claim 21
Dependent Claim
29 words
The element of claim 1 wherein the conductive polymer is a substituted or unsubstituted pyrrole-containing polymer, a substituted or unsubstituted thiophene-containing polymer, or a substituted or unsubstituted aniline-containing polymer.
Claim 22
Dependent Claim
25 words
The element of claim 1 wherein the layer containing the conductive polymer contains 10 to 1000 mg/m 2 dry coating weight of the conductive polymer.
Claim 23
Dependent Claim
25 words
The element of claim 1 wherein the layer containing the conductive polymer contains 20 to 500 mg/m 2 dry coating weight of the conductive polymer.
Claim 24
Dependent Claim
92 words
The element of claim 1 wherein the layer containing the conductive polymer comprises a mixture containing: a) a polythiophene according to Formula I; wherein each of R 1 and R 2 independently represents hydrogen or a C1-C4 alkyl group or together represent an optionally substituted C1-C4 alkylene group or a cycloalkylene group, preferably an ethylene group, an optionally alkyl-substituted methylene group, an optionally C1-C12 alkyl- or phenyl-substituted 1,2-ethylene group, a 1,3-propylene group or a 1,2-cyclohexylene group, and n is 5-1000; b) a polyanion compound; and, optionally c) a film forming polymeric binder.
Claim 25
Dependent Claim
16 words
The element of claim 23 wherein the polyanion is an anion of a polymeric carboxylic acid.
Claim 26
Dependent Claim
23 words
The element of claim 23 wherein the polyanion is a polyacrylic acid, a poly(methacrylic acid), a poly(maleic acid), or a polymeric sulfonic acid.
Claim 27
Dependent Claim
16 words
The element of claim 23 wherein the polyanion is a polystyrenesulfonic acid or a polyvinylsulfonic acid.
Claim 28
Dependent Claim
24 words
The element of claim 23 wherein the film-forming polymeric binder comprises from 5 to 95 wt % of the layer containing the conductive polymer.
Claim 29
Dependent Claim
34 words
The element of claim 23 wherein the film-forming polymeric binder is selected from the group consisting of water-soluble or water-dispersible hydrophilic polymers, maleic acid or maleic anhydride copolymers, cellulose derivatives, polyvinyl alcohol, and poly-N-vinylpyrrolidone.
Claim 30
Dependent Claim
15 words
The element of claim 23 wherein the film-forming polymeric binder is gelatin or gelatin derivatives.
Claim 31
Dependent Claim
23 words
The element of claim 23 wherein the film-forming polymeric binder is carboxymethyl cellulose, hydroxyethyl cellulose, cellulose acetate butyrate, diacetyl cellulose, or triacetyl cellulose.
Claim 32
Dependent Claim
24 words
The element of claim 23 wherein the film-forming polymeric binder is an aqueous emulsion of addition-type homopolymers and copolymers prepared from ethylenically unsaturated monomers.
Claim 33
Dependent Claim
42 words
The element of claim 31 wherein the monomers are selected from the group consisting of acrylates, methacrylates, acrylamides, methacrylamides, itaconic acid and its half-esters and diesters, substituted and unsubstituted styrenes, acrylonitrile, methacrylonitrile, vinyl acetates, vinyl ethers, vinyl and vinylidene halides, and olefins.
Claim 34
Dependent Claim
18 words
The element of claim 23 wherein the film-forming polymeric binder is an aqueous dispersion of polyurethanes or polyesterionomers.
Claim 35
Dependent Claim
13 words
The element of claim 1 wherein the support is transparent, opaque, or reflective.
Claim 36
Dependent Claim
20 words
The element of claim 1 wherein the support is glass, a polymeric film, paper, silicon wafers, or glass reinforced epoxy.
Claim 37
Dependent Claim
18 words
The element of claim 35 wherein the polymeric film support is polyester, polycarbonate, polystyrene, cellulose esters, or polyolefins.
Claim 38
Dependent Claim
12 words
The element of claim 1 wherein the support is flexible or rigid.
Claim 39
Dependent Claim
16 words
The element of claim 1 wherein the support comprises cellulose acetate, poly(ethylene terephthalate) or poly(ethylene naphthalate).
Claim 40
Dependent Claim
10 words
The element of claim 1 wherein the support is surface-treated.
Claim 41
Dependent Claim
15 words
The-element of claim 1 wherein the support is between 50 μm and 254 μm thick.
Claim 42
Dependent Claim
19 words
The element of claim 1 wherein the dry coverage of the conductive layer is between 0.002 and 0.5 g/m2.
Claim 43
Dependent Claim
23 words
The element of claim 1 wherein the conductive layer is coated from a dispersion of a conductive polymer in water, alcohol or acetone.
Claim 44
Independent Claim
109 words
A method of patterning an electroconductive layer on a support, the support having thereon a mixing layer containing a thermally mobile material and a conductive polymer layer containing a polythiophene), a polyanion and a di- or polyhydroxy organic compound, whereby the mixing layer is heated image-wise in selected areas, causing the thermally mobile material to mix with the conductive layer, wherein; the surface resistivity (SR) of the conductive layer is decreased or increased from an initial value SR i , which is lower than 10 4 Ω/square to SR i Δ, Δ being at least 10 3 in said selected areas without substantially ablating or destroying the polymer layers.
Claim 45
Independent Claim
109 words
A method of patterning an electroconductive layer on a support, the support having thereon a mixing layer containing a thermally mobile material and a conductive polymer layer containing a polythiophene), a polyanion and a di- or polyhydroxy organic compound, whereby the mixing layer is heated image-wise in selected areas, causing the thermally mobile material to mix with the conductive layer, wherein; the surface resistivity (SR) of the conductive layer is decreased or increased from an initial value SR i , which is lower than 10 4 Ω/square to SR i Δ, Δ being at least 10 3 in said selected areas without substantially ablating or destroying the polymer layers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-03-28 | 2008-09-27 | 2009-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-03-28 | 2012-09-27 | 2013-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-03-28 | 2016-09-27 | 2017-03-29 | $7700.00 | Window Closed / Lapsed |