公开(公告)号：JP2003155388A

公开(公告)日：2003-05-27

申请号：JP2002236910

申请日：2002-08-15

申请人： CHISSO CORP

发明人： HASEBA YASUHIRO ,  KUGIMIYA YOICHI

IPC分类号： G02F1/1334 ,  C08K5/03 ,  C08K5/315 ,  C08L23/08 ,  C09K19/04 ,  G02F1/13

摘要： PROBLEM TO BE SOLVED: To provide a polymer/liquid crystal composite material comprising a polymer and a liquid crystal, subjected to phase separation and compounding and having a high liquid crystal content and a display element comprising a low-voltage driving dimming layer using the composite material. SOLUTION: This polymer/liquid crystal composite material comprises a copolymer composed of at least two monomers in which either one of the monomers is an unsaturated hydrocarbon and the other is a copolymer of a carboxylic acid having an unsaturated bond, a derivative of the carboxylic acid having the unsaturated bond or an ester of an alcohol having the unsaturated bond and at least one kind of liquid crystal compound selected from the group consisting of fluorine atom-containing liquid crystal compounds and cyano group-containing liquid crystal compounds. The composite material is subjected to the phase separation and compounding.

公开(公告)号：JP2002146353A

公开(公告)日：2002-05-22

申请号：JP2000345826

申请日：2000-11-13

申请人： KAJIYAMA CHISATO ,  JAPAN SCIENCE & TECH CORP ,  SEIKO DENKI SEISAKUSHO KK ,  KYUSHU ELECTRIC POWER

发明人： KAJIYAMA CHISATO ,  KIKUCHI HIROTSUGU ,  YAMANE YAMATO

IPC分类号： G02F1/1334 ,  C09K19/04 ,  C09K19/38 ,  C09K19/42 ,  G02F1/13 ,  G02F1/1337

摘要： PROBLEM TO BE SOLVED: To provide a functional photochromic liquid crystal material where a random or anisotropic polymer network is formed by polymerizing a polymerizable disk liquid crystal monomer in a liquid crystal. SOLUTION: This liquid crystal optical material is obtained by forming a polymer network by photopolymerization of a disk liquid crystal monomer in a liquid crystal; specifically, such a polymer network is formed as follows: when a non-orientation treated cell is used, a random polymer network is formed in a composite membrane; in a composite membrane made by using a nematic liquid crystal and a parallel rubbing cell, a polymer network anisotropic in a substrate intraplanar direction is formed by polymerization in a nematic phase condition; or, in a composite membrane made by using a smectic liquid crystal and a parallel rubbing cell, an anisotropic polymer network having a laminated structure in the smectic liquid crystal layer is formed by polymerizing a photopolymerizable disk liquid crystal monomer in a smectic phase condition.

公开(公告)号：JP2002053863A

公开(公告)日：2002-02-19

申请号：JP2000240713

申请日：2000-08-09

申请人： ASAHI DENKA KOGYO KK

发明人： SHIBATA TOSHIHIRO ,  KIMURA MASAKI ,  MURATA YUKARI

IPC分类号： G02F1/13 ,  C09K19/04 ,  C09K19/12 ,  C09K19/30 ,  C09K19/44

摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal composition having low viscosity, low driving voltage and high steepness useful for supertwist nematic(STN) liquid crystal and having low-temperature storage stability. SOLUTION: The liquid crystal composition contains one or more kinds of carboxylic acid compounds expressed by general formula (1) (R is a 1-10C alkyl, a 1-10C alkoxy or a 2-10C alkenyl; and A is cyclohexane ring or benzene ring) as the 1st component and one or more kinds of fluorine compounds expressed by general formula (2) or (3) (R1 and R2 are each a 1-10C alkyl; B is cyclohexane ring or benzene ring; and (n) is an integer of 1-3) as the 2nd component.

公开(公告)号：JP3243277B2

公开(公告)日：2002-01-07

申请号：JP8310792

申请日：1992-03-05

IPC分类号： C09K19/02 ,  C09K19/04 ,  C09K19/30 ,  C09K19/42 ,  G02F1/13 ,  G02F1/133 ,  G09F9/35

公开(公告)号：JP2001249336A

公开(公告)日：2001-09-14

申请号：JP2000061097

申请日：2000-03-06

申请人： CANON KK

发明人： ASAO YASUSHI ,  TERADA MASAHIRO ,  MORI YOSHIMASA ,  MORIYAMA TAKASHI ,  TOGANO TAKESHI

IPC分类号： G02F1/13 ,  C09K19/04 ,  C09K19/10 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/40 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/1337 ,  G02F1/136 ,  G02F1/1368 ,  G09F9/30 ,  G09F9/35

摘要： PROBLEM TO BE SOLVED: To prevent production of liquid crystal defects, such as disclination. SOLUTION: An alignment controlling film 4a is formed on one substrate 1a, a non-uniaxial alignment film 4b is formed on the other substrate 1b, and a chiral smectic liquid crystal 2 is disposed between the films 4a, 4b. The films are controlled, in such a manner that surface energy γ1 of the alignment control film 4a and the surface energy γ2 of the non-uniaxial alignment film 4b satisfy the relation γ1>γ2 and that the dispersion term γ2d of the surface energy in the non-uniaxial alignment film 4b satisfies the relation 30 dyne/cm

公开(公告)号：JP2001131549A

公开(公告)日：2001-05-15

申请号：JP2000280348

申请日：2000-09-14

申请人： MERCK PATENT GMBH

发明人： RIEGER BERNHARD ,  REIFFENRATH VOLKER ,  HITTICH REINHARD

IPC分类号： G02F1/137 ,  C09K19/02 ,  C09K19/04 ,  C09K19/12 ,  C09K19/14 ,  C09K19/30 ,  C09K19/42 ,  C09K19/44 ,  G02F1/13 ,  G02F1/139

摘要： PROBLEM TO BE SOLVED: To provide an active matrix liquid crystal display which has high optical anisotropy and is stable. SOLUTION: The matrix liquid crystal display is composed of two parallel support plates, an integrated nonlinear element and a nematic liquid crystal mixture having a positive dielectric anisotropy of >=+4 and a birefringence Δn of >=0.12, and has >=98% of a voltage retention after exposure to UV light for 20 h based on that before exposure to UV light. The liquid crystal mixture contains at least one kind selected from compounds represented by formula I (wherein R is a 1-10C alkyl or the like; r is 0 or 1; X is F, Cl, a fluorinated and/or chlorinated alkyl group or the like; L1 is F; L2 is H or F; Y and Z are each H or F; and one of Q1 and Q2 is 1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene and the other is CH2CH2, CH2CH2CH2CH2 or single bond).

公开(公告)号：JP3144801B2

公开(公告)日：2001-03-12

申请号：JP50681791

申请日：1991-03-27

IPC分类号： G02F1/137 ,  C09K19/02 ,  C09K19/04 ,  C09K19/12 ,  C09K19/14 ,  C09K19/30 ,  C09K19/42 ,  C09K19/44 ,  G02F1/13 ,  G02F1/139

公开(公告)号：JP2001500894A

公开(公告)日：2001-01-23

申请号：JP51548498

申请日：1997-09-22

IPC分类号： C07C13/28 ,  C07C15/50 ,  C07C22/00 ,  C07C22/02 ,  C07C22/08 ,  C07C25/24 ,  C07C43/188 ,  C07C43/225 ,  C07D213/16 ,  C07D239/26 ,  C07D319/06 ,  C09K19/04 ,  C09K19/30 ,  C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46

公开(公告)号：JP2000309589A

公开(公告)日：2000-11-07

申请号：JP2000080368

申请日：2000-03-22

申请人： BASF AG

发明人： MEYER FRANK DR ,  SCHUMACHER PETER ,  PRECHTL FRANK

IPC分类号： C07D493/04 ,  A61K8/00 ,  A61K8/02 ,  A61K8/37 ,  A61K8/49 ,  A61Q5/00 ,  A61Q17/04 ,  C09K3/00 ,  C09K19/00 ,  C09K19/04 ,  C09K19/20 ,  C09K19/58 ,  A61K7/42

摘要： PROBLEM TO BE SOLVED: To obtain a new compound useful for a cholesteric liquid crystal composition capable of being used as a photostable UV-filtering agent for protecting the skin or the hair of a human being from UV rays within a specific region, in a cosmetic and medicinal preparation. SOLUTION: This new compound is represented by the formula Z1-Y1-(A1)m-Y2- M-Y3-X-Y4-(A2)n-Y5-Z2 (A1 and A2 are each a spacer having a 1-30C chain length; Y1 to Y5 are each a chemical bond, O or the like; M is a mesogen; Z1 and Z2 are each H, a polymerizable group or the like; X is dicyanhydrohexitol; m is 0 or 1; n is 0 or 1), e.g. a compound of formula I. The compound of formula I is obtained by reacting iso-mannitol with 4-hydroxybenzoic acid to provide a compound of formula II, further reacting the obtained compound of formula II with 4-acryloxybutyloxycarbonyloxybenzoic acid to provide a compound of formula III, and reacting the obtained compound of formula III with acryloyl chloride. The compound is suitable for production of a cholesteric liquid crystal composition having counterlockwise twist.

公开(公告)号：JP3095506B2

公开(公告)日：2000-10-03

申请号：JP1749092

申请日：1992-02-03

IPC分类号： C09K19/02 ,  C09K19/04 ,  C09K19/54 ,  G02F1/1333 ,  G02F1/1334 ,  G09F9/30