Fluorocyclohexene derivatives, and liquid-crystalline medium

US6475595B1 · kind B1 · utility

Assignee

• MERCK & CO., INC. · US

Inventors

• Matthias Bremer · Darmstadt, DE
• Detlef Pauluth · Ober-Ramstadt, DE
• Joachim Krause · Dieburg, DE
• Michael Heckmeier · Bensheim, DE
• Peer Kirsch · Darmstadt, DE

Key dates

• Filing date: Mar 31, 2000
• Grant date: Nov 5, 2002
• Expiry date: Mar 31, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24107
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Fluorocyclohexene derivatives of formula IR1—(A1—Z1)n—A—(Z2—A2)m—Z3—B—(Z4—A3)p—R2  I,in which n, m, p, R1, R2, Z1, Z2, Z3, Z4, A1, A2, A3, A and B are as defined herein, are suitable for use in liquid crystal mediums. Also, difluorocyclohexanes of formula IIIR3—A*—(Z6—A7)m—Z7—Qr—R7  III,where R3, A*, Z6, A7, m, Z7, Q, r, and R4 are as defined herein, are suitable for use in liquid crystal mediums.