Electrically conductive film

Patent metadata

Field	Value
Publication number	US-11322269-B2
Application number	US-201716306655-A
Country	US
Kind code	B2
Filing date	Jun 23, 2017
Priority date	Jun 29, 2016
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

An electroconductive film including a resin layer and an electroconductive layer, wherein the resin layer has a storage elastic modulus at 25° C. of more than 10 MPa and less than 1,000 MPa, and the electroconductive layer has a surface resistance value of 1,000 Ω/sq. or less.

First claim

The invention claimed is:

1. An electroconductive film comprising a resin layer formed of a thermoplastic resin and an electroconductive layer, wherein
the resin layer has a storage elastic modulus at 25° C. of more than 10 MPa and less than 1,000 MPa,
the electroconductive layer has a surface resistance value of 1,000 Ω/sq. or less,
the electroconductive layer has a thickness of 10 μm or less,
the electroconductive film has a total light transmittance of 70% or more,
the resin layer contains an alkoxysilyl group-modified product [3] of a hydrogenated product of a block copolymer,
the alkoxysilyl group-modified product [3] is an alkoxysilyl group-modified product of a hydrogenated product [2] that is a product of hydrogenation of carbon-carbon unsaturated bonds in a main chain and a side chain and carbon-carbon unsaturated bonds in an aromatic ring of a block copolymer [1],
the block copolymer [1] includes two or more polymer blocks [A] per one molecule of the block copolymer [1] and one or more polymer blocks [B] per one molecule of the block copolymer [1], the polymer block [A] containing an aromatic vinyl compound unit, the polymer block [B] containing a chain conjugated diene compound unit, and
a ratio (wA/wB) of a weight fraction wA of the polymer blocks [A] in the entire block copolymer [1] and a weight fraction wB of the polymer blocks [B] in the entire block copolymer [1] is in a range of 20/80 to 60/40.

2. The electroconductive film according to claim 1 , wherein the electroconductive layer contains at least one electroconductive material selected from the group consisting of a metal, an electroconductive nanowire, and an electroconductive polymer.

3. An electroconductive film comprising a resin layer formed of a thermoplastic resin and an electroconductive layer, wherein
the resin layer has a storage elastic modulus at 25° C. of more than 10 MPa and less than 1,000 MPa,
the resin layer has a bending elastic modulus at 25° C. of 500 MPa or less
the electroconductive layer has a surface resistance value of 1,000 Ω/sq. or less,
the electroconductive layer has a thickness of 10 μm or less,
the electroconductive film has a total light transmittance of 70% or more,
the resin layer contains an alkoxysilyl group-modified product [3] of a hydrogenated product of a block copolymer,
the alkoxysilyl group-modified product [3] is an alkoxysilyl group-modified product of a hydrogenated product [2] that is a product of hydrogenation of carbon-carbon unsaturated bonds in a main chain and a side chain and carbon-carbon unsaturated bonds in an aromatic ring of a block copolymer [1],
the block copolymer [1] includes two or more polymer blocks [A] per one molecule of the block copolymer [1] and one or more polymer blocks [B] per one molecule of the block copolymer [1], the polymer block [A] containing an aromatic vinyl compound unit, the polymer block [B] containing a chain conjugated diene compound unit, and
a ratio (wA/wB) of a weight fraction wA of the polymer blocks [A] in the entire block copolymer [1] and a weight fraction wB of the polymer blocks [B] in the entire block copolymer [1] is in a range of 20/80 to 60/40.

4. The electroconductive film according to claim 3 , wherein the electroconductive layer contains at least one electroconductive material selected from the group consisting of a metal, an electroconductive nanowire, and an electroconductive polymer.

Assignees

• Zeon Corp

Inventors

• Harai Kenichi
• Tazaki Satoshi
• Obuchi Kazuyuki

Classifications

• C08L53/025

  modified · CPC title

• B32B2307/558

  Impact strength, toughness · CPC title

• C08J7/043

  Improving the adhesiveness of the coatings per se, e.g. forming primers (adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50) · CPC title

• B32B2264/108

  Carbon, e.g. graphite particles · CPC title

• B32B27/20

  using fillers, pigments, thixotroping agents · CPC title