Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same

Patent metadata

Field	Value
Publication number	US-9455060-B2
Application number	US-201213708198-A
Country	US
Kind code	B2
Filing date	Dec 7, 2012
Priority date	Feb 21, 2006
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

The present invention relates to a polythiophene-based conductive polymer composition having high conductivity, transparency, waterproof property and durability, and a polymer membrane prepared by using the same. In particular, the present invention relates to a polythiophene-based conductive polymer composition comprising an aqueous solution of a polythiophene-based conductive polymer, an alcohol-based organic solvent, an amide-based organic solvent or an aprotic highly-dipolar solvent, a melamine resin and a binder selected among a polyester, a polyurethane resin and an alkoxy silane in a predetermined mixed ratio. The membrane prepared using the same has a high conductivity of less than 1 kΩ/m 2 and a high transparency of higher than 95%, thus being applicable to of an anti-static film, a film for touch panel, a film for higher or lower electrode, a film for inorganic EL and a film for display electrode.

First claim

What is claimed is:

1. A polythiophene-based conductive polymer composition, which comprises:
(i) an aqueous solution of a polythiophene-based conductive polymer,
(ii) an alcohol-based organic solvent,
(iii) an aprotic highly-dipolar solvent,
(iv) a melamine resin, and
(v) ethylene glycol as a dispersion stabilizer.

2. A polythiophene-based conductive polymer composition, which comprises:
(i) an aqueous solution of a polythiophene-based conductive polymer,
(ii) an alcohol-based organic solvent,
(iii) an aprotic highly-dipolar solvent,
(iv) a melamine resin,
(v) a polyester as a binder, and
(vi) ethylene glycol as a dispersion stabilizer.

3. The polythiophene-based conductive polymer composition of claim 1 , which comprises:
(i) 20-70 wt % of an aqueous solution of a polythiophene-based conductive polymer,
(ii) 10-75 wt % of an alcohol-based organic solvent,
(iii) 1-10 wt % of an aprotic highly-dipolar solvent,
(iv) 1-10 wt % of a melamine resin, and
(v) ethylene glycol as a dispersion stabilizer.

4. The polythiophene-based conductive polymer composition of claim 2 , which comprises:
(i) 20-70 wt % of an aqueous solution of a polythiophene-based conductive polymer,
(ii) 10-75 wt % of an alcohol-based organic solvent,
(iii) 1-10 wt % of an aprotic highly-dipolar solvent,
(iv) 1-10 wt % of a melamine resin,
(v) 0.1-5 wt % of a polyester as a binder, and
(vi) ethylene glycol as a dispersion stabilizer.

5. The polythiophene-based conductive polymer composition of claim 1 , which comprises:
(i) 20-70 wt % of an aqueous solution of a polythiophene-based conductive polymer,
(ii) 10-75 wt % of an alcohol-based organic solvent,
(iii) 1-10 wt % of an aprotic highly-dipolar solvent, and
(iv) 1-10 wt % of a melamine resin,
wherein the aprotic highly-dipolar solvent is a poly(propylene carbonate) or a dimethyl sulfoxide.

6. The polythiophene-based conductive polymer composition of claim 2 , which comprises:
(i) 20-70 wt % of an aqueous solution of a polythiophene-based conductive polymer,
(ii) 10-75 wt % of an alcohol-based organic solvent,
(iii) 1-10 wt % of an aprotic highly-dipolar solvent,
(iv) 1-10 wt % of a melamine resin, and
(v) 0.1-5 wt % of a polyester as a binder
wherein the aprotic highly-dipolar solvent is a poly(propylene carbonate) or a dimethyl sulfoxide.

Assignees

• Skc Co Ltd

Inventors

• Kim Jin Hwan
• Ryu Dae Gi
• Yi Yong Lae
• Park Jong Ho

Classifications

• H01B1/127 Primary

  comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes · CPC title

• C08L61/28

  with melamine · CPC title

• C08L2666/16

  Addition or condensation polymers of aldehydes or ketones according to C08L59/00 - C08L61/00; Derivatives thereof · CPC title

• C08L65/00

  Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C08L7/00 - C08L57/00, C08L61/00 take precedence); Compositions of derivatives of such polymers · CPC title

• C08L81/00

  Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers · CPC title