FR2701034B1 - Siloxanes à phase de cristal liquide smectique et procédé pour leur préparation. - Google Patents

Siloxanes à phase de cristal liquide smectique et procédé pour leur préparation.

Info

Publication number
FR2701034B1
FR2701034B1 FR9400894A FR9400894A FR2701034B1 FR 2701034 B1 FR2701034 B1 FR 2701034B1 FR 9400894 A FR9400894 A FR 9400894A FR 9400894 A FR9400894 A FR 9400894A FR 2701034 B1 FR2701034 B1 FR 2701034B1
Authority
FR
France
Prior art keywords
siloxanes
preparation
liquid crystal
crystal phase
smectic liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR9400894A
Other languages
English (en)
Other versions
FR2701034A1 (fr
Inventor
Coles Harry James
Hannington Jonathon Paul
Thomas David Randall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Silicones UK Ltd
Original Assignee
Dow Corning Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Corning Ltd filed Critical Dow Corning Ltd
Publication of FR2701034A1 publication Critical patent/FR2701034A1/fr
Application granted granted Critical
Publication of FR2701034B1 publication Critical patent/FR2701034B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/48—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
    • C08G77/485—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms containing less than 25 silicon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/0834—Compounds having one or more O-Si linkage
    • C07F7/0838—Compounds with one or more Si-O-Si sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/045—Polysiloxanes containing less than 25 silicon atoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/40—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals
    • C09K19/406—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals containing silicon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/40—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals
    • C09K19/406—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals containing silicon
    • C09K19/408—Polysiloxanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Liquid Crystal Substances (AREA)
  • Silicon Polymers (AREA)
FR9400894A 1993-01-30 1994-01-27 Siloxanes à phase de cristal liquide smectique et procédé pour leur préparation. Expired - Fee Related FR2701034B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939301883A GB9301883D0 (en) 1993-01-30 1993-01-30 Liquid crystal siloxanes and device elements

Publications (2)

Publication Number Publication Date
FR2701034A1 FR2701034A1 (fr) 1994-08-05
FR2701034B1 true FR2701034B1 (fr) 1995-08-25

Family

ID=10729602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9400894A Expired - Fee Related FR2701034B1 (fr) 1993-01-30 1994-01-27 Siloxanes à phase de cristal liquide smectique et procédé pour leur préparation.

Country Status (5)

Country Link
US (1) US5547604A (fr)
JP (1) JP3802084B2 (fr)
DE (1) DE4402572C2 (fr)
FR (1) FR2701034B1 (fr)
GB (2) GB9301883D0 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317185B (en) * 1996-09-12 1998-12-09 Toshiba Kk Liquid crystal material and liquid crystal display device
JP3574547B2 (ja) * 1997-05-23 2004-10-06 ナトコ株式会社 液晶用遮光スペーサーおよび液晶表示素子
US6870163B1 (en) 1999-09-01 2005-03-22 Displaytech, Inc. Ferroelectric liquid crystal devices using materials with a de Vries smectic A phase
US7083832B2 (en) 2000-09-01 2006-08-01 Displaytech, Inc. Partially fluorinated liquid crystal material
US7195719B1 (en) 2001-01-03 2007-03-27 Displaytech, Inc. High polarization ferroelectric liquid crystal compositions
US6703082B1 (en) 2001-06-20 2004-03-09 Displaytech, Inc. Bookshelf liquid crystal materials and devices
GB0126849D0 (en) * 2001-11-08 2002-01-02 Qinetiq Ltd Novel compounds
US6838128B1 (en) 2002-02-05 2005-01-04 Displaytech, Inc. High polarization dopants for ferroelectric liquid crystal compositions
FR2883883A1 (fr) * 2005-04-01 2006-10-06 Thales Sa Molecules complexes a fort pouvoir dispersant a base de fonction cristal liquide et de particule d'oxyde metallique
KR101155295B1 (ko) * 2006-04-17 2012-06-13 캠브리지 엔터프라이즈 리미티드 쌍안정성 강유전성 액정 디바이스
US8368831B2 (en) * 2007-10-19 2013-02-05 Dow Corning Corporation Oligosiloxane modified liquid crystal formulations and devices using same
EP2217680B1 (fr) * 2007-10-26 2011-11-30 Dow Corning Corporation Formulations de cristaux liquides modifiés par oligosiloxane et dispositifs les utilisant
CN101533162B (zh) * 2008-03-14 2011-09-07 苏州汉朗光电有限公司 电控调光介质
GB0823013D0 (en) 2008-12-18 2009-01-28 Cambridge Entpr Ltd Wide temperature-range smectic liquid crystall materials
WO2011115611A1 (fr) * 2010-03-15 2011-09-22 Cambridge Enterprise Limited Formulations et structures de cristaux liquides pour dispositifs optiques smectiques a
EP2547749B1 (fr) * 2010-03-15 2014-06-11 Dow Corning Corporation Structures et formulations de cristaux liquides pour dispositifs optiques a structure smectique a
GB201100375D0 (en) 2011-01-10 2011-02-23 Cambridge Entpr Ltd Smectic A compositions for use in electrical devices
GB201115868D0 (en) 2011-09-14 2011-10-26 Cambridge Entpr Ltd Driver circuit
CN103666482B (zh) 2012-09-10 2016-05-25 苏州汉朗光电有限公司 一种近晶a相液晶材料
KR102126680B1 (ko) * 2016-05-23 2020-06-25 주식회사 엘지화학 신규 액정 화합물 및 이의 용도
WO2017213809A1 (fr) 2016-06-10 2017-12-14 Dow Corning Corporation Polyorganosiloxanes à cristaux liquides à chaîne latérale non linéaire et leurs procédés de préparation et d'utilisation dans des applications et dispositifs électro-optiques
CN115505404A (zh) * 2022-08-30 2022-12-23 联创电子科技股份有限公司 液晶组合物、液晶透镜以及液晶显示装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944591A1 (de) * 1979-11-05 1981-05-14 Wacker-Chemie GmbH, 8000 München Fluessigkristalline phasen aufweisende zusammensetzungen
GB8324642D0 (en) * 1983-09-14 1983-10-19 Univ Manchester Liquid crystal storage device
JPS6432309A (en) * 1987-07-29 1989-02-02 Fanuc Ltd Data input system
JP2513742B2 (ja) * 1987-12-01 1996-07-03 株式会社東芝 液晶材料
DE3856314T2 (de) * 1987-12-18 1999-09-23 Canon Kk Mesomorphische Verbindung, Flüssigkristallzusammensetzung und Flüssigkristallvorrichtung
JPH01268785A (ja) * 1988-04-21 1989-10-26 Toshiba Corp 液晶材料
JPH01271431A (ja) * 1988-04-22 1989-10-30 Toray Dow Corning Silicone Co Ltd 液晶性オルガノポリシロキサン及びその製造方法
US5259987A (en) * 1988-08-12 1993-11-09 The General Electric Company, P.L.C. Liquid crystal materials
JP2718970B2 (ja) * 1989-01-06 1998-02-25 チッソ株式会社 ジシロキサン類液晶化合物
CA2019380C (fr) * 1989-06-22 1995-01-10 Wolfgang Haas Derives d'acide benzoique silylate
US5138010A (en) * 1990-06-25 1992-08-11 University Of Colorado Foundation, Inc. Fast switching polysiloxane ferroelectric liquid crystals
US5354489A (en) * 1990-08-30 1994-10-11 Asahi Kasei Kogyo Kabushiki Kaisha Method for changing the viscosity of a fluid comprising a liquid crystal compound
US5316693A (en) * 1991-04-18 1994-05-31 Idemitsu Kosan Co., Ltd. Liquid crystal composition and information display apparatus using the liquid crystal composition
GB9301895D0 (en) * 1993-01-30 1993-03-17 Dow Corning Liquid crystal siloxanes and device elements

Also Published As

Publication number Publication date
FR2701034A1 (fr) 1994-08-05
JPH06240259A (ja) 1994-08-30
GB9301883D0 (en) 1993-03-17
JP3802084B2 (ja) 2006-07-26
DE4402572C2 (de) 2002-03-07
GB2274649A8 (en) 1996-09-23
US5547604A (en) 1996-08-20
DE4402572A1 (de) 1994-08-04
GB2274649A (en) 1994-08-03
GB9401329D0 (en) 1994-03-23
GB2274649B (en) 1996-11-27

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