公开(公告)号：EP0438754B1

公开(公告)日：1994-08-17

申请号：EP90125085.2

申请日：1990-12-21

申请人： DAINIPPON INK AND CHEMICALS, INC. ,  SAGAMI CHEMICAL RESEARCH CENTER

发明人： Takehara, Sadao ,  Kuriyama, Takeshi ,  Osawa, Masashi ,  Fujisawa, Toru ,  Nakamura, Kayoko ,  Hiyama, Tamejiro ,  Kusumoto, Tetsuo ,  Nakayama, Akiko

IPC分类号： C07C255/46 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34

CPC分类号： C07D239/26 ,  C07C255/37 ,  C07C255/46 ,  C07C2601/02 ,  C07C2601/14 ,  C09K19/20 ,  C09K19/2021 ,  C09K19/3068 ,  C09K19/3463

公开(公告)号：EP0395078B1

公开(公告)日：1994-03-09

申请号：EP90108007.7

申请日：1990-04-27

申请人： DAINIPPON INK AND CHEMICALS, INC. ,  KAWAMURA INSTITUTE OF CHEMICAL RESEARCH ,  SAGAMI CHEMICAL RESEARCH CENTER

发明人： Takehara, Sadao ,  Kuriyama, Takeshi ,  Nakamura, Kayoko ,  Shoji, Tadao ,  Fujisawa, Toru ,  Osawa, Masashi ,  Hiyama, Tamejiro ,  Kusumoto, Tetsuo ,  Nakayama, Akiko ,  Nishide, Kiyoharu

IPC分类号： C09K19/34 ,  C07D307/33

CPC分类号： C07D307/33 ,  C09K19/2021 ,  C09K19/3405 ,  C09K2019/3075

公开(公告)号：EP0329153A3

公开(公告)日：1990-05-02

申请号：EP89102756.7

申请日：1989-02-17

申请人： DAINIPPON INK AND CHEMICALS, INC. ,  KAWAMURA INSTITUTE OF CHEMICAL RESEARCH

发明人： Takehara, Sadao ,  Shoji, Tadao ,  Ogawa, Hiroshi ,  Fujisawa, Toru ,  Osawa, Masashi

IPC分类号： C09K19/12 ,  C09K19/20 ,  C07C69/90 ,  C07C69/732

CPC分类号： C09K19/126 ,  C09K19/2021

摘要： compound represented by formula (I):
wherein R 1 represents an alkyl group having from 1 to 18 carbon atoms; R 2 represents an alkyl group having from 2 to 16 carbon atoms; rings A, B, C, and D each represents a 1,4-phenylene group or a 1,4-phenylene group having one or two halogen atoms; Y represents a single bond,
m and n each represents 0 or 1; p represents 0, 1, or 2; q represents 0 or an integer of from 1 to 6; and C * and C" each represents an asymmetric carbon atom in an (S)- or (R)-configuration, and a liquid crystal composition containing the compound of formula (I). The compound of formula (I) is a chiral liquid crystal compound exhibiting large spontaneous polarization, a long helical pitch, an SC * phase in a broad temperature range including room temperature, satisfactory orientation, and a high rate of response.

公开(公告)号：EP0188222A3

公开(公告)日：1986-11-05

申请号：EP86100165

申请日：1986-01-08

申请人： DAINIPPON INK AND CHEMICALS, INC. ,  KAWAMURA INSTITUTE OF CHEMICAL RESEARCH

发明人： Takehara, Sadao ,  Fujisawa, Toru ,  Arai, Yoshi ,  Kurokawa, Jitsuo

IPC分类号： C09K19/20 ,  C07C69/00 ,  C07C69/773 ,  G02F01/137

CPC分类号： C09K19/2021

摘要： A liquid crystalline compound represented by formula
wherein
R denotes an alkyl or alkoxy group having 1 to 20 carbon atoms, m and n are each 0 or 1, provided m and n are not 1 at the same time.
X and Y each denote a hydrogen atom, a halogen atom or a nitro group, provided X and Y are not hydrogen atoms at the same time, and Q * denotes an optically active group having an asymmetric carbon atom and a linear or cyclic alkyl or alkenyl group which may be substituted by a halogen atom, or the like.