Dye compounds

US10202508B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Qiong TONG · Darmstadt, DE
• Peer Kirsch · Darmstadt, DE
• Michael Junge · Munich, DE
• Ursula Patwal · Reinheim, DE
• Andreas Beyer · Hanau, DE

Key dates

• Filing date: Nov 19, 2014
• Grant date: Feb 12, 2019
• Expiry date: Nov 19, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/1337
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Mixtures containing at least one dye compound having a diketopyrrolopyrrole structure and at least one further liquid-crystalline compound are suitable for use in devices for regulating the entry of light into a space.