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Title:
PHOTOCHROMIC COMPOSITION, PHOTOCHROMIC ARTICLE, AND GLASSES
Document Type and Number:
WIPO Patent Application WO/2022/138965
Kind Code:
A1
Abstract:
Provided is a photochromic composition comprising one or more types of compounds represented by general formula A and one or more types of compounds represented by general formula B. In general formula A, R1, R2, B1, and B2 each independently represent a hydrogen atom or a substituent, and R3 to R6 each independently represent a hydrogen atom or an electron-withdrawing group, where one or more of R3 to R6 represents an electron-withdrawing group. In general formula B, R7 to R12, B3, and B4 each independently represent a hydrogen atom or a substituent, and R13 and R14 each independently represent a hydrogen atom or an electron-donating group, where one or more of R13 and R14 represents an electron-donating group.

Inventors:
KAWAKAMI HIRONORI (JP)
KOBAYASHI KEI (JP)
MATSUE AOI (JP)
Application Number:
PCT/JP2021/048398
Publication Date:
June 30, 2022
Filing Date:
December 24, 2021
Export Citation:
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Assignee:
HOYA LENS THAILAND LTD (TH)
KAWAKAMI HIRONORI (JP)
KOBAYASHI KEI (JP)
MATSUE AOI (JP)
International Classes:
G02B5/23; C07D311/78; C09K9/02; G02B1/04; G02C7/10
Domestic Patent References:
WO2009136668A12009-11-12
WO2001060811A12001-08-23
WO2013086248A12013-06-13
WO1996014596A11996-05-17
WO2001019813A12001-03-22
Foreign References:
US20160279886A12016-09-29
JP2014506245A2014-03-13
JP2014507385A2014-03-27
JP2014510718A2014-05-01
JP4884578B22012-02-29
US20060226402A12006-10-12
US20060228557A12006-10-12
US20080103301A12008-05-01
US20110108781A12011-05-12
US7527754B22009-05-05
US7556751B22009-07-07
Other References:
HIIZU IWAMURARYOJI NOYORITAKESHI NAKAIISAO KITAGAWA, ORGANIC CHEMISTRY FOR GRADUATE SCHOOL, vol. 1, 1988
Attorney, Agent or Firm:
SIKS & CO. (JP)
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