Patent · US Expired

Copolymers based on vinyl units and their use in electroluminescent devices

US6114463A · kind A · utility

10Cited by

21References

21Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Yun Chen · Krefeld, DE
Burkhard Kohler · Leverkusen, DE
Rolf Wehrmann · Krefeld, DE
Andreas Elschner · Mülheim, DE
Ralf Dujardin · Willich, DE

Key dates

Filing date	Aug 11, 1997
Grant date	Sep 5, 2000
Priority date	—
Expiry date	Aug 11, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K11/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to (co)polymers which contain at least one repeating structural chain unit of the general formula (1) and/or (2) and optionally repeating units of the general formula (3) ##STR1## in which L.sup.1 and L.sup.2, independently of each other, represent a photoluminescent grouping, a process for their preparation, their use in electroluminescent devices and the electroluminescent devices.

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