Conductor, conductive composition and laminate

Patent metadata

Field	Value
Publication number	US-10096395-B2
Application number	US-201314397957-A
Country	US
Kind code	B2
Filing date	Jul 24, 2013
Priority date	Jul 24, 2012
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

The present invention relates to a conductor having a substrate and a conductive coating film laminated on the substrate, wherein, the surface resistance value of the conductive coating film is 5×10 10 Ω/□ or less, the Ra 1 of the conductive coating film is 0.7 nm or less, the Ra 2 value of the conductive coating film scanning probe microscopies 0.35 nm or less, and the conductive coating film is formed with a conductive composition containing a conductive polymer (A). In addition, the present invention relates to a conductive composition which contains a conductive polymer (A) and a surfactant (B), wherein the surfactant (B) contains a specific water-soluble polymer (C), and the content of a compound (D1) with an octanol-water partition coefficient (Log Pow) of 4 or more in the conductive composition is 0.001 mass % or less, relative to the total mass of the conductive composition.

First claim

The invention claimed is:

1. A conductor, comprising:
a substrate; and
a conductive coating film laminated on the substrate,
wherein the conductive coating film has a surface resistance value of 5×10 10 Ω/□ or less,
the conductive coating film has a surface roughness (Ra 1 ) measured by a stylus profiler of 0.7 nm or less, and
a surface roughness (Ra 2 ) measured by a scanning probe microscope of 0.35 nm or less, and
the conductive coating film is formed by a process comprising drying a conductive composition comprising a conductive polymer (A) and a surfactant (B), wherein the surfactant (B) comprises a water-soluble polymer (C) having a nitrogen-comprising functional group and a terminal hydrophobic group and having a molecular weight ranging from 500 to 1500, and the surfactant (B) comprises a compound (D1) with an octanol-water partition coefficient (Log Pow) of 4 or more such that an amount of the compound (D1) in the conductive composition is 0.001 mass % or less, relative to the total mass of the conductive composition.

2. The conductor according to claim 1 , wherein the conductive polymer (A) has an acidic group.

3. The conductor according to claim 2 , wherein the acidic group is at least one selected from the group consisting of a sulfonic acid group and a carboxyl group.

4. The conductor according to claim 2 , wherein the acidic group is a sulfonic acid group.

5. The conductor according to claim 2 , wherein the acidic group is a carboxyl group.

6. The conductor according to claim 2 , wherein the acidic group is a sulfonic acid group and a carboxyl group.

7. The conductor according to claim 1 , wherein the conductive polymer (A) has a monomer unit represented by formula (1)

wherein R 1 to R 4 each independently represents a hydrogen atom, a straight-chain or branched-chain alkyl group having 1 to 24 carbon atoms, a straight-chain or branched-chain alkoxyl group having 1 to 24 carbon atoms, an acidic group, a hydroxyl group, a nitro group or a halogen atom, and
at least one of R 1 to R 4 represents an acidic group or salt thereof.

8. The conductor according to claim 7 , wherein the acidic group is a sulfonic acid group or a carboxyl group.

Assignees

• Mitsubishi Chem Corp

Inventors

• Fukuda Hiroya
• Numata Osamu
• Ikeda Hironobu
• Nagasaka Toshio
• Saiki Shinji
• Iriyama Hiroaki
• Uzawa Masashi
• Kaneko Asako

Classifications

• H01B1/128

  comprising six-membered aromatic rings in the main chain, e.g. polyanilines, polyphenylenes · CPC title

• H01B1/124 Primary

  Intrinsically conductive polymers · CPC title

• Y10T428/24355

  Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] · CPC title

• C09D179/02

  Polyamines · CPC title

• C08F20/52

  Amides or imides · CPC title