Patents Examined by Chanceity N Ribonson
  • Patent number: 10858589
    Abstract: A polymerizable liquid crystal compound represented by Formula (I): Q1—Sp1—[A—L]—A—Sp2—Q2??(I) A represents a divalent nitrogen-containing saturated cyclic group (that may have a substituent) formed by removing two hydrogen atoms from piperidine or piperazine, a phenylene group that may have a substituent, or a trans-1,4-cyclohexylene group that may have a substituent; L represents a linking group such as —C(?O)O— or —OC(?O)—; m represents 3 to 12; Sp1 and Sp2 represent an alkylene group having 1 to 20 carbon atoms; any one of Q1 and Q2 represents a polymerizable group; and Formula (I) has a nitrogen-containing saturated cyclic group and a phenylene group that are directly bonded to each other via —C(?O)O—. By using a polymerizable composition including the polymerizable liquid crystal compound, a film such as a retardation film can have low birefringence or a reflection film can have high selectivity in a reflection wavelength range.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: December 8, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Hayashi, Hiroshi Inada, Shunya Katoh