Patent · US Expired

Conjugated polymers containing ANSA substructures and their use as electroluminescence materials

US5712361A · kind A · utility

10Cited by

4References

5Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Roland Stern · Wiesbaden, DE
Donald Lupo · Frankfurt am Main, DE
Josef Salbeck · Kelkheim, DE
Hermann Schenk · Hofheim, DE
Thomas Stehlin · Kriftel, DE
Klaus Müllen
Ullrich Scherf · Golm, DE
Joachim Huber · Ingelheim am Rhein, DE

Key dates

Filing date	Jun 28, 1995
Grant date	Jan 27, 1998
Priority date	—
Expiry date	Jun 28, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Conjugated polymers containing ansa substructures and their use as electroluminescence materials. Conjugated polymers containing ansa substructures, which contain aromatic groups and in which adjacent aromatic groups are connected to one another in such a way that one ring atom of one aromatic group is directly linked to one ring atom of the other aromatic group and any further linkages of these two aromatic groups are possible only via a bridge containing at least one tetravalent carbon atom and/or heteroatom. The polymers of the invention having ansa substructures are outstandingly suitable as electroluminescence materials, since they have a very high color purity.

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