Patent · US Active

Polythiophene formulations for improving organic light emitting diodes

US8252889B2 · kind B2 · utility

1Cited by

6References

12Claims

0Family size

Assignee

HERAEUS PRECIOUS METALS GMBH & CO. KG · DE

Inventors

Andreas Elschner · Mülheim, DE
Knud Reuter · Krefeld, DE
Peter Wilfried Loevenich

Key dates

Filing date	Jan 19, 2007
Grant date	Aug 28, 2012
Priority date	—
Expiry date	May 29, 2027

Classification

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

Abstract

The invention relates to formulations comprising polythiophenes A) comprising at least one polythiophene containing recurring units of the general formula (I-a) and/or (I-b)and at least two further polymers, the use thereof and electroluminescent arrangements comprising hole-injecting layers comprising these formulations.

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