Patent · US Active

Materials for organic electroluminescent devices

US8859111B2 · kind B2 · utility

13Cited by

3References

19Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Amir Hossain Parham · Frankfurt am Main, DE
Susanne Heun · Bad Soden, DE
Esther Breuning · Ober-Ramstadt, DE

Key dates

Filing date	Jun 18, 2010
Grant date	Oct 14, 2014
Priority date	—
Expiry date	May 31, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to 4,4′-substituted spirobifluorenes which are suitable, owing to excellent properties, as functional materials in organic electroluminescent devices. In addition, the present invention relates to a process for the preparation of 4,4′-substituted spirobifluorenes and to the use of these compounds in organic electroluminescent devices.

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