Method for producing conductive polymer dispersion and method for producing conductive film

By optimizing the mass ratio and viscosity of conductive polymer dispersions with controlled temperature dispersion, the stability and conductivity of conductive layers are maintained, addressing the issue of dispersion instability in existing technologies.

JP2025010419AActive Publication Date: 2025-01-20SHIN ETSU POLYMER CO LTD +1
View PDF 7 Cites 0 Cited by

Patent Information

Application Number
JP2024193885
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-01-20
Estimated Expiration
2040-08-21

Smart Images

  • Figure 2025010419000001
    Figure 2025010419000001
  • Figure 2025010419000002
    Figure 2025010419000002
  • Figure 2025010419000003
    Figure 2025010419000003
Patent Text Reader

Abstract

To provide a conductive polymer dispersion having improved stability after dispersion treatment and a method for producing the same.SOLUTION: There is provided a conductive polymer dispersion which contains a conductive composite containing a π-conjugated conductive polymer and a polyanion and water, wherein the mass ratio of the π-conjugated conductive polymer to the polyanion is 1:2 to 1:5, the weight average molecular weight Mw of the polyanion is 200000 or more and 1000000 or less and when the concentration of the conductive composite to the total mass of the conductive polymer dispersion is adjusted to 1.3 mass% and the viscosity at 25°C is 35 cP or more and 45 cP or less.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Manufacturing method of conductive polymer solution

    JP2008171761A

  • Method for manufacturing capacitor

    JP2010087401A

  • Conductive polymer solution and method for manufacturing the same

    JP2012031256A

  • Conductive polymer dispersion and method for producing the same, coating material and conductive film and method for producing the same

    JP2022035613A

  • Process for producing solution having electrically conductive polymer dispersed therein, and electrolytic capacitor

    WO2012140881A1