Title:
POLYMERIZABLE LIQUID CRYSTAL COMPOSITION, POLARIZED FILM AND METHOD FOR MANUFACTURING SAME, POLARIZING PLATE, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/151226
Kind Code:
A1
Abstract:
Provided is a polymerizable liquid crystal composition containing: a polymerizable liquid crystal compound having at least one polymerizable group and exhibiting smectic liquid crystallinity; a dichroic dye; and an antioxidant, wherein the polymerizable group in the polymerizable liquid crystal compound is a radically polymerizable group, and the antioxidant satisfies equation (1) in relation to the polymerizable liquid crystal compound. (1) 0.8˚C ≤ T1-T2. [In the equation, T1 is the phase transition temperature of a phase transition to a liquid crystal phase that develops at the lowest-temperature end, the phase transition temperature being measured while cooling the polymerizable liquid crystal compound to 23°C at 5°C/min after heating the same to 130°C in air, and T2 is the phase transition temperature of a phase transition to a liquid crystal phase that develops at the lowest-temperature end, the phase transition temperature being measured while cooling a mixture comprising 100 parts by mass of the polymerizable liquid crystal compound and 1 part by mass of the antioxidant to 23°C at 5°C/min after heating the same to 130°C in air.]
Inventors:
OTA YOSUKE (JP)
HATANAKA NOBUYUKI (JP)
MURANO KOTA (JP)
TOKUDA MASAYOSHI (JP)
HATANAKA NOBUYUKI (JP)
MURANO KOTA (JP)
TOKUDA MASAYOSHI (JP)
Application Number:
PCT/JP2019/002916
Publication Date:
August 08, 2019
Filing Date:
January 29, 2019
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; C08F20/30; G02F1/133; G02F1/1335
Domestic Patent References:
| WO2013022610A1 | 2013-02-14 | |||
| WO2018012579A1 | 2018-01-18 | |||
| WO2014006962A1 | 2014-01-09 | |||
| WO2018019691A1 | 2018-02-01 |
Foreign References:
| US20120003401A1 | 2012-01-05 | |||
| JP2007510946A | 2007-04-26 | |||
| JP2013037353A | 2013-02-21 | |||
| JP2014012836A | 2014-01-23 | |||
| JP2012021068A | 2012-02-02 | |||
| JP2000507362A | 2000-06-13 | |||
| JP2011158671A | 2011-08-18 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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