Liquid crystalline medium

US11168257B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Peer Kirsch · Darmstadt, DE
• Andreas Ruhl · De Pere, US
• Michael Junge · Munich, DE
• Ursula Patwal · Reinheim, DE
• Mila Fischer · Bremke, DE

Key dates

• Filing date: Jul 17, 2017
• Grant date: Nov 9, 2021
• Expiry date: Aug 26, 2037

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E06B2009/2464
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to liquid crystalline media comprising one or more benzothiadiazol derivatives of formula I, in which R11, R12, A11, A12, A21, A22, Z11, Z12, Z21, Z22, W, X11, X12, r and s have the meanings indicated in claim 1, to the use of such liquid crystal media for optical, electro-optical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows.