Film, method for producing same, transparent conductive film, and touch panel

Patent metadata

Field	Value
Publication number	US-2016244580-A1
Application number	US-201615145325-A
Country	US
Kind code	A1
Filing date	May 3, 2016
Priority date	Nov 22, 2013
Publication date	Aug 25, 2016
Grant date	—

Abstract

A film includes a substrate including a cyclic olefin-based resin; and an easily adhesive layer adjacent to the substrate, in which a content of a fluorine-containing polymer in the easily adhesive layer is greater than 20 mass % with respect to a total mass of the easily adhesive layer. This film is used in a transparent conductive film, and this transparent conductive film is used in a touch panel. A method for producing a film includes laminating an easily adhesive layer by directly applying a coating liquid for forming an easily adhesive layer on a substrate including a cyclic olefin-based resin, in which a content of a fluorine-containing polymer in the coating liquid for forming the easily adhesive layer is greater than 20 mass % with respect to a total mass of the coating liquid for forming the easily adhesive layer.

First claim

What is claimed is:

1 . A film comprising:
a substrate including a cyclic olefin-based resin; and an easily adhesive layer that is laminated adjacent to the substrate, wherein a content of a fluorine-containing polymer in the easily adhesive layer is greater than 20 mass % with respect to a total mass of the easily adhesive layer.

2 . The film according to claim 1 ,
wherein a water content of the easily adhesive layer is 0.3% to 2.5%.

3 . The film according to claim 1 ,
wherein a thickness of the easily adhesive layer is 40 nm to 400 nm.

4 . The film according to claim 1 ,
wherein the fluorine-containing polymer includes a structural unit represented by Formula (a1) below and a structural unit derived from vinyl ether, and
—[CFX 1 —CX 2 X 3 ]—  Formula (a1)

wherein, in Formula (a1), each of X 1 and X 2 independently represents a hydrogen atom, a chlorine atom, or a fluorine atom, X 3 represents a chlorine atom, a fluorine atom, or —CY 1 Y 2 Y 3 , and each of Y 1 , Y 2 , and Y 3 independently represents a hydrogen atom, a chlorine atom, or a fluorine atom.

5 . The film according to claim 2 ,
wherein the fluorine-containing polymer includes a structural unit represented by Formula (a1) below and a structural unit derived from vinyl ether, and
—[CFX 1 —CX 2 X 3 ]—  Formula (a1)

wherein, in Formula (a1), each of X 1 and X 2 independently represents a hydrogen atom, a chlorine atom, or a fluorine atom, X 3 represents a chlorine atom, a fluorine atom, or —CY 1 Y 2 Y 3 , and each of Y 1 , Y 2 , and Y 3 independently represents a hydrogen atom, a chlorine atom, or a fluorine atom.

6 . The film according to claim 3 ,
wherein the fluorine-containing polymer includes a structural unit represented by Formula (a1) below and a structural unit derived from vinyl ether, and
—[CFX 1 —CX 2 X 3 ]—  Formula (a1)

wherein, in Formula (a1), each of X 1 and X 2 independently represents a hydrogen atom, a chlorine atom, or a fluorine atom, X 3 represents a chlorine atom, a fluorine atom, or —CY 1 Y 2 Y 3 , and each of Y 1 , Y 2 , and Y 3 independently represents a hydrogen atom, a chlorine atom, or a fluorine atom.

7 . The film according to claim 4 ,
wherein the fluorine-containing polymer includes 40 mol % to 90 mol % of a structural unit represented by Formula (a1) above, 3 mol % to 50 mol % of a structural unit represented by Formula (a2) below, 0.5 mol % to 30 mol % of a structural unit represented by Formula (a3) below, and 0.2 mol % to 7 mol % of a structural unit represented by Formula (a4) below, wherein values of total mol % of the respective structural units represented by Formulae (a1), (a2), (a3), and (a4) are 80 to 100, and at least a portion of R 4 in the structural unit represented by Formula (a4) below is —NZ 1 Z 2 Z 3 ,

wherein, in Formula (a2), R a represents a hydrogen atom or a methyl group, R 1 represents an alkyl group having 1 to 12 carbon atoms or a monovalent alicyclic group having 4 to 10 carbon atoms, j represents an integer of 0 to 8, and k represents 0 or 1,

wherein, in Formula (a3), R b represents a hydrogen atom or a methyl group, R 2 represents an alkylene group having 1 to 10 carbon atoms or a divalent alicyclic group having 4 to 10 carbon atoms, m represents an integer of 0 to 8, and n represents 0 or 1, and

wherein, in Formula (a4), R b represents a hydrogen atom or a methyl group, R 2 represents an alkylene group having 1 to 10 carbon atoms or a divalent alicyclic group having 4 to 10 carbon atoms, R 3 represents an alkylene group having 2 to 10 carbon atoms or a divalent alicyclic group having 4 to 10 carbon atoms, R 4 represents a hydrogen atom or —NZ 1 Z 2 Z 3 , each of Z 1 , Z 2 , and Z 3 independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 1 to 6 carbon atoms, p represents an integer of 0 to 8, and q represents 0 or 1.

8 . The film according to claim 1 ,
wherein the easily adhesive layer is formed from aqueous emulsion including the fluorine-containing polymer.

9 . The film according to claim 8 ,
wherein a minimum film formation temperature of the aqueous emulsion is 30° C. or lower.

10 . The film according to claim 1 ,
wherein a layer A having a water contact angle of 70° or less is laminated adjacent to the easily adhesive layer on a surface on an opposite side to a surface in contact with the substrate, among both surfaces of the easily adhesive layer.

11 . The film according to claim 10 ,
wherein the layer A includes a gelatin.

12 . The film according to claim 10 ,
wherein a photosensitive material layer for forming a transparent conductive layer is further laminated on a surface on an opposite side to a surface in contact with the easily adhesive layer, among both surfaces of the layer A.

13 . A method for producing a film, comprising:
laminating an easily adhesive layer by directly applying a coating liquid for forming an easily adhesive layer on a substrate including a cyclic olefin-based resin, wherein a content of a fluorine-containing polymer in the coating liquid for forming the easily adhesive layer is greater than 20 mass % with respect to a total mass of the coating liquid for forming the easily adhesive layer.

14 . The method for producing a film according to claim 13 , further comprising:
laminating a layer A by directly applying a coating liquid for forming the layer A on the easily adhesive layer, wherein a water contact angle of the layer A is 70° or less.

15 . The method for producing a film according to claim 14 ,
wherein the coating liquid for forming the layer A includes a gelatin.

16 . The method for producing a film according to claim 14 , further comprising:
laminating a photosensitive material layer for forming a transparent conductive layer by directly applying an emulsion of the photosensitive material for forming the transparent conductive layer on the layer A.

17 . A transparent conductive film comprising:
the film according to claim 1 ; and a transparent conductive layer.

18 . A transparent conductive film comprising:
a transparent conductive layer formed by exposing and developing the photosensitive material layer for forming the transparent conductive layer of the film according to claim 12 .

19 . A touch panel comprising:
the transparent conductive film according to claim 17 .

20 . A touch panel comprising:
the transparent conductive film according to claim 18 .

Assignees

• Fujifilm Corp

Inventors

• Watanabe Naomi
• Takegami Ryuta

Classifications

• B32B2307/412

  Transparent · CPC title

• B32B2307/202

  Conductive · CPC title

• B32B27/325

  comprising polycycloolefins · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• C08J2427/12

  containing fluorine atoms · CPC title