Method for producing a conductive polymer conductor

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The challenge lies in accurately adhering conductive polymers to base materials during chemical polymerization, as bleeding occurs, making it difficult to achieve high accuracy in shaping the conductive polymer fibers.

Innovation Solution

A method involving the application of a raw material solution containing a conductive polymer monomer to a heated base material, followed by a producing solution with an oxidizing agent and dopant, and the addition of a viscosity improver to minimize bleeding and enhance conductivity, using a device with heating and application means to control the process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a monomer of a conductive polymer is printed on a base material to allow chemical polymerization reaction, then the conductive polymer can be adhered in a free shape, but bleeding is caused resulting in difficulty in adhering the conductive polymer with high accuracy

Engineering Contradiction:
Improvefree shape adherenceVSAvoidadherence accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The base material is heated before applying the monomer solution, which preliminarily prepares the surface to immediately initiate polymerization upon monomer application. This preliminary heating action prevents bleeding by ensuring the polymerization reaction starts immediately when the monomer contacts the heated base material, thereby achieving both free shape adherence and high accuracy

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention changes the temperature parameter of the base material to a heated state before monomer application. This parameter change accelerates the polymerization reaction rate, allowing the conductive polymer to form immediately in the desired shape without bleeding, thus resolving the contradiction between free shape versatility and adherence accuracy

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If the conductive polymer is adhered to the base material by the chemical method, then the production process is simplified, but bleeding occurs making it difficult to achieve high accuracy in shape

Engineering Contradiction:
Improveproduction simplicityVSAvoidshape accuracy
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

Heating the base material before applying the monomer solution is a preliminary action that prepares the surface for immediate polymerization. This maintains the simplicity of the chemical method while preventing bleeding, thereby achieving both ease of manufacture and shape accuracy

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Changing the temperature parameter of the base material to heated state accelerates the polymerization reaction, allowing the conductive polymer to adhere immediately in the desired shape without bleeding. This preserves the chemical method's simplicity while improving shape accuracy

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach allows for precise adherence of conductive polymers to the base material in the desired shape with high conductivity, minimizing bleeding and resistance, and enabling the use of various base materials regardless of their composition.

Implementation Method 1

a raw material application step of applying, to a base material, a raw material solution containing a monomer of a conductive polymer after heating the base material or while heating the base material

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

a producing solution application step of applying, to the base material being in a heated state, a producing solution containing an oxidizing agent for promoting polymerization of the monomer

Methodology Applied
Scientific EffectOxidation: Oxidation

Data Source

PatentEP3228242B1Method for producing a conductive polymer conductor
Publication Date: 2020.06.24 AI SILK CORP
  • EP3228242B1 patent drawingFigure 1~2
  • EP3228242B1 patent drawingFigure 3~4
  • EP3228242B1 patent drawingFigure 5~7

AI summary

A problem is to provide a method and a device for producing a conductive polymer conductor according to which a conductive polymer can be easily adhered to a base material with high accuracy. A solution is a production device 10 equipped with a heating means 11 for heating a base material M, a raw material application means 12 for applying, to the base material M, a raw material solution containing a monomer of the conductive polymer, and a producing solution application means 13 for applying, to the base material M, a producing solution containing an oxidizing agent for promoting polymerization of the monomer, a dopant for developing electrical conductivity in the conductive polymer, and a viscosity improver for improving viscosity. The raw material solution is applied thereto after heating the base material M or while heating the base material M, and then the producing solution is applied thereto.