Patent · US Expired

(Co)polymers based on vinyl units and use thereof in electroluminescent devices

US6403239B2 · kind B2 · utility

7Cited by

22References

4Claims

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	May 8, 2001
Grant date	Jun 11, 2002
Priority date	—
Expiry date	May 8, 2021

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) in whichL1 and L2 mean a photoluminescent residue,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,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.