GB2355720B - Process for preparing a reflective film and photodegradable chiral compounds therefor - Google Patents

Process for preparing a reflective film and photodegradable chiral compounds therefor

Info

Publication number
GB2355720B
GB2355720B GB0022083A GB0022083A GB2355720B GB 2355720 B GB2355720 B GB 2355720B GB 0022083 A GB0022083 A GB 0022083A GB 0022083 A GB0022083 A GB 0022083A GB 2355720 B GB2355720 B GB 2355720B
Authority
GB
United Kingdom
Prior art keywords
preparing
reflective film
chiral compounds
compounds therefor
photodegradable
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
GB0022083A
Other versions
GB0022083D0 (en
GB2355720A (en
Inventor
Llyr Owain Parri
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.)
Merck Patent GmbH
Original Assignee
Merck Patent GmbH
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 Merck Patent GmbH filed Critical Merck Patent GmbH
Publication of GB0022083D0 publication Critical patent/GB0022083D0/en
Publication of GB2355720A publication Critical patent/GB2355720A/en
Application granted granted Critical
Publication of GB2355720B publication Critical patent/GB2355720B/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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/58—Dopants or charge transfer agents
    • C09K19/586—Optically active dopants; chiral dopants
    • C09K19/588—Heterocyclic compounds
    • 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
    • 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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/58—Dopants or charge transfer agents
    • C09K19/586—Optically active dopants; chiral dopants
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/08—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of polarising materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal Substances (AREA)
GB0022083A 1999-09-08 2000-09-08 Process for preparing a reflective film and photodegradable chiral compounds therefor Expired - Fee Related GB2355720B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99117446 1999-09-08

Publications (3)

Publication Number Publication Date
GB0022083D0 GB0022083D0 (en) 2000-10-25
GB2355720A GB2355720A (en) 2001-05-02
GB2355720B true GB2355720B (en) 2004-09-22

Family

ID=8238921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0022083A Expired - Fee Related GB2355720B (en) 1999-09-08 2000-09-08 Process for preparing a reflective film and photodegradable chiral compounds therefor

Country Status (1)

Country Link
GB (1) GB2355720B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1388538B1 (en) 2002-07-09 2010-09-01 Merck Patent GmbH Polymerisation Initiator
EP1824946B1 (en) 2004-12-17 2009-09-30 Merck Patent GmbH Liquid crystal system and liquid crystal display
FR2890396B1 (en) 2005-09-08 2009-01-23 Centre Nat Rech Scient PROCESS FOR PRODUCING LIQUID CRYSTAL MATERIAL WITH INCREASED REFLECTION RATE
FR2890397B1 (en) * 2005-09-08 2009-02-27 Centre Nat Rech Scient METHOD FOR PRODUCING LIQUID CRYSTAL MATERIAL WITH EXTENDED REFLECTION TAPE
US7642035B2 (en) 2006-04-13 2010-01-05 Industrial Technology Research Institute Sensitized photochemical switching for cholesteric liquid crystal displays

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668614A (en) * 1995-05-01 1997-09-16 Kent State University Pixelized liquid crystal display materials including chiral material adopted to change its chirality upon photo-irradiation
WO1997035219A1 (en) * 1996-03-19 1997-09-25 Merck Patent Gmbh Liquid crystal display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668614A (en) * 1995-05-01 1997-09-16 Kent State University Pixelized liquid crystal display materials including chiral material adopted to change its chirality upon photo-irradiation
WO1997035219A1 (en) * 1996-03-19 1997-09-25 Merck Patent Gmbh Liquid crystal display device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Makromol. Chem., 1989, Vol. 190, pp 3201-3215 *

Also Published As

Publication number Publication date
GB0022083D0 (en) 2000-10-25
GB2355720A (en) 2001-05-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130908