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Title:
PHOTOCHROMIC COMPOSITION, PHOTOCHROMIC ARTICLE, AND SPECTACLES
Document Type and Number:
WIPO Patent Application WO/2022/138966
Kind Code:
A1
Abstract:
Provided is a photochromic composition containing one or more types of compounds represented by general formula A, one or more types of compounds represented by general formula B, and one or more types of compounds represented by general formula C. In general formula A, R1 to R6, B1, and B2 each independently represent a hydrogen atom or a substituent. 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 an electron-donating group. In general formula C, R15 to R20, B5, and B6 each independently represent a hydrogen atom or a substituent, and one of R21 and R22 represents a hydrogen atom and the other represents an electron-donating group.

Inventors:
KAWAKAMI HIRONORI (JP)
KOBAYASHI KEI (JP)
MATSUE AOI (JP)
SHIMADA TAKUYA (JP)
YAMASHITA TERUO (JP)
Application Number:
PCT/JP2021/048399
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)
SHIMADA TAKUYA (JP)
YAMASHITA TERUO (JP)
International Classes:
G02B5/23; C07D311/78; C09K9/02; G02B1/04; G02C7/10
Domestic Patent References:
WO2020094772A12020-05-14
WO2001060811A12001-08-23
WO2013086248A12013-06-13
WO1996014596A11996-05-17
WO2001019813A12001-03-22
Foreign References:
US20160279886A12016-09-29
JP2008507618A2008-03-13
JP2014502604A2014-02-03
JP2014506247A2014-03-13
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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