Patent · US Active

White-emitting copolymers, representation, and use thereof

US8044217B2 · kind B2 · utility

1Cited by

2References

10Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Aurelie Falcou · Mainz, DE
Arne Büsing · Frankfurt, DE
Susanne Heun · Bad Soden, DE
Jürgen Steiger · Taipei, TW
Anja Gerhard · Egelsbach, DE
Niels Schulte · Kelkheim, DE
Heinrich Becker · Königstein, DE

Key dates

Filing date	Mar 22, 2010
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Mar 22, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to white-emitting copolymers which are obtained by a combination of blue-, green- and red-emitting repeating units. The copolymers of the invention display better film formation and an improved efficiency when used in polymeric organic light-emitting diodes compared to materials according to the prior art.

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