Patent · US Active

Electroluminescent polymers and the use thereof

US7947382B2 · kind B2 · utility

2Cited by

10References

34Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Arne Büsing · Frankfurt, DE
Susanne Heun · Bad Soden, DE
Silke Türk · Montabaur, DE
Corinna Leske · Frankfurt, DE

Key dates

Filing date	Apr 26, 2005
Grant date	May 24, 2011
Priority date	—
Expiry date	Dec 6, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12556
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to polymers which contain novel structural units of the formula (I). The materials according to the invention exhibit improved efficiency and a longer lifetime on use in a polymeric organic light-emitting diode.

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