Liquid crystal compounds of butylenes

US8398887B2 · kind B2 · utility

Assignee

• Yantai Valiant Fine Chemicals Co., Ltd. · CN

Inventors

• Baohua Hu · Yantai, CN
• Hu Yuan · Yantai, CN
• Yinbo Zhou · Yantai, CN
• Xuesong Jiang · Yantai, CN
• Tingting Zhang · Tangxia, CN
• Haichao Fu · Yantai, CN
• Xueming Song · Yantai, CN

Key dates

• Filing date: Jun 3, 2009
• Grant date: Mar 19, 2013
• Expiry date: Jun 3, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2019/0444
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A nematic phase liquid crystal compound with negative dielectric constant has a structure represented bywherein R1 represents a hydrogen atom or linear alkyl having 1 to 8 carbon atoms or linear alkenyl having 1-8 carbon atoms, or an alkoxy or alykenoxy formed by substituting one or nonadjacent two CH2 in the linear alkyl or alkenyl with oxygen atom, wherein 0 to 4 hydrogen atoms of R1 group can be substituted with fluorine; R2 represents a hydrogen atom or linear alkyl having 1 to 8 carbon atoms, or R2 represents a linear fluoroalkyl having 1 to 8 carbon atoms, in which group 1 to 4 hydrogens can be substituted with fluorine atoms; A represents a benzene ring or 1,4-cyclohexane ring, if A is a benzene ring 0 to 4 hydrogen atoms on the benzene ring may be substituted with fluorine; n=1 to 2, and m=0 to 2.