Alkylbyphenyloxyacetic acid esters and their use in smectic liquid crystal materials

US4911863A · kind A · utility

Assignee

• The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · GB

Inventors

• Ian C. Sage · Broadstone, GB
• John A. Jenner · Dorchester, GB
• Hans-Adolf Kurmeier · Seeheim-Jugenheim, DE
• Pauluth Detlef · Darmstadt, DE
• Claus Escher · Mühltal, DE
• Eike Poetsch · Mühltal, DE

Key dates

• Filing date: Dec 21, 1987
• Grant date: Mar 27, 1990
• Expiry date: Dec 21, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/3422
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to ferroelectric smectic liquid crystal mixtures and compounds. The invention also relates to electro-optical devices incorporating these mixtures.