GB2314331A - Cyclosiloxanes for LCDs - Google Patents

Cyclosiloxanes for LCDs

Info

Publication number
GB2314331A
GB2314331A GB9720617A GB9720617A GB2314331A GB 2314331 A GB2314331 A GB 2314331A GB 9720617 A GB9720617 A GB 9720617A GB 9720617 A GB9720617 A GB 9720617A GB 2314331 A GB2314331 A GB 2314331A
Authority
GB
United Kingdom
Prior art keywords
formula
independently chosen
chosen
compounds
phenyl
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
GB9720617A
Other versions
GB9720617D0 (en
GB2314331B (en
Inventor
David Lacey
Timothy Earl Mann
Julie Ann Haley
Damien Gerard Mcdonnell
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 GBGB9507316.9A external-priority patent/GB9507316D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9720617A priority Critical patent/GB2314331B/en
Publication of GB9720617D0 publication Critical patent/GB9720617D0/en
Publication of GB2314331A publication Critical patent/GB2314331A/en
Application granted granted Critical
Publication of GB2314331B publication Critical patent/GB2314331B/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
    • C09K19/40—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
    • 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
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • 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
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • 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
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

Compounds of general formula (I) of described, wherein n = 3-30; X and Y are independently chosen from C 1-6 alkyl, phenyl or formula (II): (CH 2 ) p O-M, wherein p = 1-20 and M is a group of formula (III), wherein a, b and g are independently chosen from 0 and 1; G is selected from CO 2 , OCO and is a single bond when g=0: j=0-4; F indicates that one or more of the phenyl rings may be laterally fluorinated; Z is chosen from R, OR, CO 2 R, OCOR, CN wherein R is selected from C 1-20 branched or straight chain alkyl and may contain a chiral centre; provided that at least once of X and Y is selected from formula (II). Compounds described by formula (I) may be used in a broad range of applications including liquid crystal devices.
GB9720617A 1995-04-07 1996-04-04 Polysiloxanes Expired - Fee Related GB2314331B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9720617A GB2314331B (en) 1995-04-07 1996-04-04 Polysiloxanes

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9507316.9A GB9507316D0 (en) 1995-04-07 1995-04-07 Polysiloxanes
PCT/GB1996/000837 WO1996031576A1 (en) 1995-04-07 1996-04-04 Polysiloxanes
GB9720617A GB2314331B (en) 1995-04-07 1996-04-04 Polysiloxanes

Publications (3)

Publication Number Publication Date
GB9720617D0 GB9720617D0 (en) 1997-11-26
GB2314331A true GB2314331A (en) 1997-12-24
GB2314331B GB2314331B (en) 1999-05-26

Family

ID=26306842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9720617A Expired - Fee Related GB2314331B (en) 1995-04-07 1996-04-04 Polysiloxanes

Country Status (1)

Country Link
GB (1) GB2314331B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466183A1 (en) * 1990-07-12 1992-01-15 Consortium für elektrochemische Industrie GmbH Cyclosiloxanes with mesogenic side groups
EP0488825A2 (en) * 1990-11-30 1992-06-03 Shin-Etsu Chemical Co., Ltd. Liquid crystalline organopolysiloxanes and liquid crystal compositions
EP0617111A1 (en) * 1993-03-25 1994-09-28 Sumitomo Chemical Company, Limited Optically anisotropic material, process for producing it, and retardation plate and liquid crystal display device using same
EP0704514A2 (en) * 1994-09-26 1996-04-03 Sumitomo Chemical Company, Limited Optically anisotropic film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466183A1 (en) * 1990-07-12 1992-01-15 Consortium für elektrochemische Industrie GmbH Cyclosiloxanes with mesogenic side groups
EP0488825A2 (en) * 1990-11-30 1992-06-03 Shin-Etsu Chemical Co., Ltd. Liquid crystalline organopolysiloxanes and liquid crystal compositions
EP0617111A1 (en) * 1993-03-25 1994-09-28 Sumitomo Chemical Company, Limited Optically anisotropic material, process for producing it, and retardation plate and liquid crystal display device using same
EP0704514A2 (en) * 1994-09-26 1996-04-03 Sumitomo Chemical Company, Limited Optically anisotropic film

Also Published As

Publication number Publication date
GB9720617D0 (en) 1997-11-26
GB2314331B (en) 1999-05-26

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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)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030404