Title:
METHOD FOR PRODUCING CONDUCTIVE FILM, CONDUCTIVE FILM, AND METAL NANOWIRE INK
Document Type and Number:
WIPO Patent Application WO/2019/026829
Kind Code:
A1
Abstract:
[Problem] Provided is a conducive film for which the amount of a metal nanowire to be used can be reduced, and which has a surface resistivity ranging from 1000 to 10000 Ω/□, and has a small degree of variation in in-plane surface resistivities. Also provided are: a method suitable for the production of a conductive film, which has excellent production efficiency; and a metal nanowire ink which can be used for the method.
[Solution] A conductive film which can be produced by a production method including a step of applying a metal nanowire ink onto at least one surface of a polymer film and then drying the metal nanowire ink, wherein the metal nanowire ink contains a metal nanowire (A) having an average diameter of 1 to 100 nm, an average long axis length of 1 to 100 μm and an average aspect ratio of 100 to 2000, a binder resin (B) containing at least one of ethyl cellulose and hydroxypropyl cellulose and a solvent (C) containing diethylene glycol monoethyl ether, the content of the metal nanowire (A) in the metal nanowire ink is 0.005 to 0.05% by mass, the surface resistivity of a conductive layer in the conductive film is 1000 to 10000 Ω/□, and the degree of variation in the in-plane surface resistivity is 35% or less.
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Inventors:
YAMAKI SHIGERU (JP)
Application Number:
PCT/JP2018/028412
Publication Date:
February 07, 2019
Filing Date:
July 30, 2018
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
H01B13/00; B05D5/12; B05D7/04; B05D7/24; B32B7/02; B32B27/18; H01B1/00; H01B1/22; H01B5/14; H05K1/09
Domestic Patent References:
| WO2015177967A1 | 2015-11-26 |
Attorney, Agent or Firm:
ARIHARA Motoji (JP)
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