Fluorine-containing 4,4'-bis-(cyclohexyl)-biphenyl derivatives, and dielectrics and electro-optical display elements containing them

US4419264A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Rudolf Eidenschink · Mainz, DE
• Michael C. Romer · Rodgau, DE
• Ludwig Pohl · Darmstadt, DE

Key dates

• Filing date: Apr 30, 1982
• Grant date: Dec 6, 1983
• Expiry date: Apr 30, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/3021
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each is alkyl or alkoxy each of up to 8 C atoms, and one or two of the substituents X are fluorine and the others are hydrogen are valuable liquid crystalline materials.