Patent · US Active

Conjugated polymers, their preparation and use thereof

US7767785B2 · kind B2 · utility

4Cited by

1References

20Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Aurelie Falcou · Mainz, DE
Frank Meyer · Mannheim, DE
Amir Hossain Parham · Frankfurt am Main, DE
Heinrich Becker · Königstein, DE

Key dates

Filing date	Sep 18, 2004
Grant date	Aug 3, 2010
Priority date	—
Expiry date	Jul 10, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to conjugated polymers which comprise both structural units of the formula (1) and also structural units of the formula (2). The materials according to the invention are more readily soluble, display improved air stability and display a smaller voltage increase during prolonged operation when used in a polymeric organic light-emitting diode (PLED) than polymers according to the prior art.

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