GB2323179A - Liquid crystal elastomers - Google Patents

Liquid crystal elastomers

Info

Publication number
GB2323179A
GB2323179A GB9813242A GB9813242A GB2323179A GB 2323179 A GB2323179 A GB 2323179A GB 9813242 A GB9813242 A GB 9813242A GB 9813242 A GB9813242 A GB 9813242A GB 2323179 A GB2323179 A GB 2323179A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal elastomers
electro
elastomers
describes
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.)
Granted
Application number
GB9813242A
Other versions
GB2323179B (en
GB9813242D0 (en
Inventor
Ian Charles Sage
Keith Moray Blackwood
Michelle Jones
Mark Andrew Verrall
David Coates
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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
Priority claimed from GBGB9600124.3A external-priority patent/GB9600124D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9813242A priority Critical patent/GB2323179B/en
Publication of GB9813242D0 publication Critical patent/GB9813242D0/en
Publication of GB2323179A publication Critical patent/GB2323179A/en
Application granted granted Critical
Publication of GB2323179B publication Critical patent/GB2323179B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C09K19/38—Polymers
    • C09K19/3833—Polymers with mesogenic groups in the side chain
    • C09K19/3842—Polyvinyl derivatives
    • C09K19/3852—Poly(meth)acrylate derivatives
    • C09K19/3857—Poly(meth)acrylate derivatives containing at least one asymmetric carbon atom
    • 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
    • C09K19/38—Polymers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133365—Cells in which the active layer comprises a liquid crystalline polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

This invention describes a method for the loading and alignment of elastomers in electro-optic and electro-active devices. It comprises the in-situ polymerisation between substrates of liquid crystal monomers in the presence of cross-linking reagents. It also describes the production of free-standing elastomer films.
GB9813242A 1996-01-04 1997-01-06 Liquid crystal elastomers Expired - Fee Related GB2323179B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9813242A GB2323179B (en) 1996-01-04 1997-01-06 Liquid crystal elastomers

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9600124.3A GB9600124D0 (en) 1996-01-04 1996-01-04 Elastomers
PCT/GB1997/000005 WO1997025649A1 (en) 1996-01-04 1997-01-06 Liquid crystal elastomers
GB9813242A GB2323179B (en) 1996-01-04 1997-01-06 Liquid crystal elastomers

Publications (3)

Publication Number Publication Date
GB9813242D0 GB9813242D0 (en) 1998-08-19
GB2323179A true GB2323179A (en) 1998-09-16
GB2323179B GB2323179B (en) 2000-06-28

Family

ID=26308420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9813242A Expired - Fee Related GB2323179B (en) 1996-01-04 1997-01-06 Liquid crystal elastomers

Country Status (1)

Country Link
GB (1) GB2323179B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293911A2 (en) * 1987-06-04 1988-12-07 Canon Kabushiki Kaisha Polymer liquid crystal device
EP0293870A1 (en) * 1987-06-03 1988-12-07 Kuraray Co., Ltd. Method for electric field orientation of liquid crystal polymers and oriented materials of liquid crystal polymers obtained by the method
EP0445629A2 (en) * 1990-03-07 1991-09-11 Hercules Incorporated Process of preparing liquid crystal compositions containing multiple oriented mesogens
US5385690A (en) * 1991-07-26 1995-01-31 Heino Finkelmann Liquid-crystalline elastomers or thermoset materials having a fixed anisothropic network structure
EP0669548A1 (en) * 1994-02-23 1995-08-30 Fuji Xerox Co., Ltd. Optical element and process for producing the same
WO1996012209A1 (en) * 1994-10-13 1996-04-25 The Secretary Of State For Defence Liquid crystal polymer devices
WO1997004349A1 (en) * 1995-07-21 1997-02-06 The Secretary Of State For Defence Liquid crystal polymer devices and materials

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293870A1 (en) * 1987-06-03 1988-12-07 Kuraray Co., Ltd. Method for electric field orientation of liquid crystal polymers and oriented materials of liquid crystal polymers obtained by the method
EP0293911A2 (en) * 1987-06-04 1988-12-07 Canon Kabushiki Kaisha Polymer liquid crystal device
EP0445629A2 (en) * 1990-03-07 1991-09-11 Hercules Incorporated Process of preparing liquid crystal compositions containing multiple oriented mesogens
US5385690A (en) * 1991-07-26 1995-01-31 Heino Finkelmann Liquid-crystalline elastomers or thermoset materials having a fixed anisothropic network structure
EP0669548A1 (en) * 1994-02-23 1995-08-30 Fuji Xerox Co., Ltd. Optical element and process for producing the same
WO1996012209A1 (en) * 1994-10-13 1996-04-25 The Secretary Of State For Defence Liquid crystal polymer devices
WO1997004349A1 (en) * 1995-07-21 1997-02-06 The Secretary Of State For Defence Liquid crystal polymer devices and materials

Also Published As

Publication number Publication date
GB2323179B (en) 2000-06-28
GB9813242D0 (en) 1998-08-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050106