Patent · US Expired

Copolymers based on vinyl units and use thereof in electroluminescent devices

US6248457A · kind A · utility

13Cited by

17References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

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

Key dates

Filing date	Feb 9, 1996
Grant date	Jun 19, 2001
Priority date	—
Expiry date	Feb 9, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31938
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

This invention relates to (co)polymers which contain at least one repeat chain unit of the general formula (1) or (2) and optionally contain repeat units of the general formula (3) ##STR1## in which PA1 L.sup.1 and L.sup.2 mean a photoluminescent residue, PA1 wherein the proportion of structural units of the formulae (1) and/or (2) is in each case 0.5 to 100 mol. %, and (3) 0 to 99.5 mol. %, and the molar percentages add up to 100, PA1 to the use thereof for the production of electroluminescent devices and to the electroluminescent devices.

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