Patent · US Expired

Process relating to polymers

US7736489B2 · kind B2 · utility

2Cited by

13References

33Claims

0Family size

Assignee

Acreo AB · SE

Inventors

Lars-Olov Hennerdal · Söderhamn, SE
Tommi Remonen · Nyköping, SE
Jessica Hall · Söderhamn, SE
Anna Malmström · Söderhamn, SE
Magnus Berggren · Vreta kloster, SE
Thomas Kugler · Cambridge, GB
Luc Leenders · Herentals, BE
Johan Lamotte · Rotselaar, BE

Key dates

Filing date	Sep 13, 2002
Grant date	Jun 15, 2010
Priority date	—
Expiry date	Nov 15, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/265
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A process for rendering an electrically conducting polymer essentially non-conducting is provided, in which the polymer is brought into direct electrical contact with an electrolyte. Furthermore, an electric voltage is applied to the polymer using at least two electrodes connected to a voltage supply, each electrode independently being in electrical contact with one of the polymer and the electrolyte. The electrically conducting polymer is rendered non-conducting through electrochemical reactions occurring in the interface between the polymer and the electrolyte in response to the electric voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.