Title:
【発明の名称】光学活性なビフェニル誘導体、その製造法、それを有効成分とする液晶組成物およびそれを用いてなる液晶素子
Document Type and Number:
Japanese Patent JP2893798
Kind Code:
B2
Abstract:
Optically active biphenyl derivatives including optically active biphenyl carboxylic acid derivative, hydroxybiphenyl derivative, alkoxybiphenylalkanol derivative and alkoxybiphenylalkanol derivative have the following structural formula: wherein R1 represents an alkyl group of 3-20 carbon atoms, R2 represents an alkyl group or alkoxyalkyl group of 1-20 carbon atoms which may optionally be substituted with at least one halogen atom. X represents -O-, -COO- or -OCO-, m represents 0 or 1, n represents an integer of 1-6 and p represents 0 or 1, and the * mark represents an asymmetric carbon atom. These optically active biphenyl derivatives are useful as a ferroelectric liquid crystal material or its component having a sufficient spontaneous polarization and by which a high speed response is possible and which further exhibits a ferroelectric liquid crystal phase in a temperature region around room temperature.
Inventors:
KURIMOTO ISAO
AZUMAI TAKAYUKI
TODA SHOJI
MINAMII MASAYOSHI
KAWAKAMI CHIZU
TANI TAKESHI
AZUMAI TAKAYUKI
TODA SHOJI
MINAMII MASAYOSHI
KAWAKAMI CHIZU
TANI TAKESHI
Application Number:
JP4053990A
Publication Date:
May 24, 1999
Filing Date:
February 20, 1990
Export Citation:
Assignee:
SUMITOMO KAGAKU KOGYO KK
International Classes:
G02F1/13; C07C33/20; C07C39/12; C07C43/164; C07C43/205; C07C43/23; C07C65/24; C07C67/28; C07C69/007; C07C69/017; C07C69/025; C07C69/63; C07C69/708; C07C69/76; C09K19/12; C09K19/54; (IPC1-7): C07C33/20; C07C43/164; C07C43/23; C07C67/28; C07C69/025; C07C69/63; C07C69/708; C07C69/76; C09K19/54; G02F1/13
Domestic Patent References:
| JP6449A |
Attorney, Agent or Firm:
Mitsuhiro Moroishi (1 person outside)