Title:
ELECTROCHROMIC PHOTOCHROMIC OPTICAL ARTICLE
Document Type and Number:
WIPO Patent Application WO/2019/216283
Kind Code:
A1
Abstract:
Provided is an optical article having two types of chromic characteristics including electrochromic characteristics and photochromic characteristics. Through the present invention, it is possible to provide an optical article having two types of chromic characteristics including electrochromic characteristics and photochromic characteristics, wherein, through use of a chromene compound as a photochromic compound, the optical article exhibits excellent photochromic characteristics, and when electrochromic characteristics are combined therewith, the optical article exhibits adequate coloring density even at high temperature.
Inventors:
MORI KATSUHIRO (JP)
MOMODA JUNJI (JP)
MOMODA JUNJI (JP)
Application Number:
PCT/JP2019/018050
Publication Date:
November 14, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
International Classes:
G02B5/23; C09K9/02; G02F1/15
Foreign References:
| JP2017512858A | 2017-05-25 | |||
| US20180003966A1 | 2018-01-04 |
Attorney, Agent or Firm:
KATO Ryuta et al. (JP)
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