Invention Grant
US08425990B2 Liquid crystalline compound, liquid crystalline composition, optical film, and optical laminate 有权
液晶化合物,液晶组合物,光学膜和光学层压板

  • Patent Title: Liquid crystalline compound, liquid crystalline composition, optical film, and optical laminate
  • Patent Title (中): 液晶化合物,液晶组合物,光学膜和光学层压板
  • Application No.: US12526119
    Application Date: 2008-02-21
  • Publication No.: US08425990B2
    Publication Date: 2013-04-23
  • Inventor: Seiji OkadaKentarou Tamura
  • Applicant: Seiji OkadaKentarou Tamura
  • Applicant Address: JP Tokyo
  • Assignee: Zeon Corporation
  • Current Assignee: Zeon Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Kratz, Quintos & Hanson, LLP
  • Priority: JP2007-044425 20070223
  • International Application: PCT/JP2008/052937 WO 20080221
  • International Announcement: WO2008/102838 WO 20080828
  • Main IPC: C09K19/00
  • IPC: C09K19/00
Liquid crystalline compound, liquid crystalline composition, optical film, and optical laminate
Abstract:
A liquid crystalline compound shown by the following formula (I). wherein R1 to R13 represent a hydrogen atom, a fluorine atom, a methyl group, a trifluoromethoxy group, or a cyano group, X represents —O—, —O—CO—, or the like, n is 0 or 1, and R14 represents -A-CO—CH═CH2, wherein A is a linking group. The liquid crystalline compound has a higher liquid crystal phase upper limit temperature, is chemically stable, can be inexpensively produced, and exhibits a large selective reflection wavelength zone Δλ (a large Δn). A liquid crystalline composition comprising the liquid crystalline compounds, an optical film having a liquid crystal layer formed using the liquid crystalline composition, and an optical laminate comprising a substrate, an alignment film formed on the substrate, a liquid crystal layer formed using the liquid crystalline composition on the alignment film are also disclosed.
Information query
Patent Agency Ranking
0/0