Patents Assigned to Nippon Mitsubishi Oil Company
  • Patent number: 6294229
    Abstract: A film for optical elements is formed by a liquid crystalline composition comprising the following components (a) and (b): (a) a liquid crystalline polymer which exhibits an optically positive uniaxial property; and (b) a polycyclic compound having a molecular weight of not more than 1,000 and wherein a plurality of alicyclic rings and/or aromatic rings are connected together through a linkage chain of 0 to 4 main-chain carbon atoms bonded to different ring carbon atoms, with hydrocarbon groups each having 1 to 20 carbon atoms being bonded respectively to both end rings through a linkage chain of 0 to 4 main-chain carbon atoms, an orientation form formed in the state of liquid crystal of said liquid crystalline composition being fixed.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: September 25, 2001
    Assignee: Nippon Mitsubishi Oil Company
    Inventors: Yasushi Satoh, Hitoshi Mazaki, Teruaki Yamanashi, Yoshihiro Kobori