Nitrogen-containing polymers as electroluminescent materials

US5874179A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Willi Kreuder · Mainz, DE
• Hans-Heinrich Horhold · Jena, DE
• Henning Rost · Erlangen, DE

Key dates

• Filing date: Mar 28, 1997
• Grant date: Feb 23, 1999
• Expiry date: Mar 28, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to nitrogen-containing polymers containing structural units of formula (I), ##STR1## where the symbols and indices have the following meanings: Ar.sup.1, Ar.sup.2, Ar.sup.3 are, identically or differently, mono- and/or polynuclear and/or condensed aryl and/or heteroaryl groups which may or may not be linked via one or more bridges carbon atoms, which may or may not be substituted; PA1 X is a single bond, --O--, --S--, --SO--, --SO.sub.2, NR.sup.3, --CR.sup.4 R.sup.5 --, --CO--, --CR.sup.6 .dbd.CR.sup.7, CR.sup.8 R.sup.9 --CR.sup.10 R.sup.11 or SiR.sup.12 R.sup.13 ; PA1 R.sup.1 -R.sup.13 are, identically or differently, H, a hydrocarbon radical having from 1 to 22 carbon atoms or Ar.sup.4, where Ar.sup.4, identical with or different from Ar.sup.1, has the same meanings as Ar.sup.1 ; PA1 n=1, 2 or 3.