# US 10,307,786 B2 · Anisotropy reduction in coating of conductive films > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,786 B2 - Document ID: US10307786B2 - Status: Granted - Kind: B2 - Application number: 15/343,595 - Filed: 2016-11-04 - Published: 2017-02-23 - Granted: 2019-06-04 - Earliest claimed: 2011-07-01 - Assignees: Cambrios Film Solutions Corporation - Applicants: Cambrios Film Solutions Corporation - Inventors: Florian Pschenitzka; Jonathan Westwater - Web page: https://patentgrep.com/patent/US10307786B2 ## CPC - B05D 3/042: {Directing or stopping the fluid to be coated with air} - B05C 5/0245: {for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web (B05C5/0241, B05C5/0254, B05C5/027, B05C5/0283 take precedence)} - B05C 5/0254: {Coating heads with slot-shaped outlet (B05C5/0283 takes precedence)} - B05C 11/06: with a blast of gas or vapour - B05D 1/26: performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface - B05D 7/04: to surfaces of films or sheets (producing layered products by applying coatings of pasty or pulverulent plastics B29C41/00) - B05D 2252/02: of indefinite length - B05D 2601/28: Metals - B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites - H01B 1/02: mainly consisting of metals or alloys - H01B 5/00: Non-insulated conductors or conductive bodies characterised by their form - Y10T 428/24372: Particulate matter - Y10T 428/25: Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08) - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Provided herein is a method of forming a conductive film, the method comprising: providing a coating solution having a plurality of conductive nanostructures and a fluid carrier; moving a web in a machine direction; forming a wet film by depositing the coating solution on the moving web, wherein the wet film has a first dimension extending parallel to the machine direction and a second dimension transverse to the machine direction; applying an air flow across the wet film along the second dimension, whereby at least some of the conductive nanostructures in the wet film are reoriented; and allowing the wet film to dry to provide the conductive film. ## Claims ### Claim 1 A conductive film, comprising: a plurality of conductive nanostructures, wherein: at least some of the plurality of conductive nanostructures are reoriented, the conductive film has a first dimension and a second dimension perpendicular to the first dimension, both the first and the second dimensions are perpendicular to a normal of the conductive film, the conductive film has an anisotropy, which is defined as a ratio (RTD/RMD) of a first sheet resistance (RMD) and a second sheet resistance (RTD), the first sheet resistance (RMD) is measured at a given location along the first dimension and the second sheet resistance (RTD) is measured at the given location along the second dimension, and the anisotropy is greater than 1 and less than 1.5 according to a reorientation of the at least some of the plurality of conductive nanostructures. ### Claim 2 (depends on 1) The conductive film of claim 1, wherein: the conductive film has a plurality of anisotropies, each of the plurality of anisotropies is defined as the ratio (RTD/RMD) of the first sheet resistance (RMD) and the second sheet resistance (RTD), for each of the plurality of anisotropies, the first sheet resistance (RMD) is measured at a given location along the first dimension and the second sheet resistance (RTD) is measured at the given location along the second dimension, the conductive film has a maximum anisotropy and a minimum anisotropy among the plurality of anisotropies, and a difference between the maximum anisotropy and the minimum anisotropy is less than 25% of the minimum anisotropy according to a reorientation of the at least some of the plurality of conductive nanostructures. ### Claim 3 (depends on 2) The conductive film of claim 2, wherein the difference between the maximum anisotropy and the minimum anisotropy is less than 10% of the minimum anisotropy. ### Claim 4 (depends on 1) The conductive film of claim 1, wherein the plurality of conductive nanostructures have a hollow core. ### Claim 5 (depends on 1) The conductive film of claim 1, wherein the plurality of conductive nanostructures have a solid core. ### Claim 6 (depends on 1) The conductive film of claim 1, wherein the plurality of conductive nanostructures are isotropically-shaped. ### Claim 7 (depends on 1) The conductive film of claim 1, wherein the plurality of conductive nanostructures are anisotropically-shaped. ### Claim 8 (depends on 1) The conductive film of claim 1, wherein the plurality of conductive nanostructures are silver nanowires.