← Back to Patent Explorer
EP0505955A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Aqueous dispersion of intrinsically electroconductive polyalkylthiophene, method of preparation and use thereof

Assignee: Hoechst AG
•
Filing: 1992-03-23
•
Granted: —
•
Expires: 2012-03-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Es wird eine wässrige Dispersion beschrieben enthaltend elektrisch leitfähiges (dotiertes) Polyalkoxythiophen, das in aprotischen organischen Lösemitteln löslich und in Wasser unlöslich ist. Die Dispersion besitzt einen Restlösemittelgehalt von kleiner/gleich 25 Gew.-%, bezogen auf das Gesamtgewicht der Dispersion. Es wird auch ein Verfahren zur Herstellung dieser Dispersion beschrieben und ihre Verwendung zur Bildung von Überzügen auf Substraten. An aqueous dispersion is described which contains electrically conductive (doped) polyalkoxythiophene which is soluble in aprotic organic solvents and insoluble in water. The dispersion has a residual solvent content of less than or equal to 25% by weight, based on the total weight of the dispersion. A method of making this dispersion and its use in forming coatings on substrates is also described.

Inventors

  • 👤 Karl-Heinz Dr. Kochem
  • 👤 Michael Schmidt

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 01:44
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/126; C08G2261/00; C08G2261/10; C08G2261/14; C08G2261/141; C08G2261/1412; C08G2261/30; C08G2261/32; C08G2261/322; C08G2261/3223; Y; Y10; Y10T; Y10T428/00; Y10T428/29

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag