Title:
クロメン化合物
Document Type and Number:
Japanese Patent JP5813095
Kind Code:
B2
Abstract:
A novel photochromic compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability. The present invention is a chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as the basic skeleton in which a hetero ring having two hetero atoms including at least one sulfur atom is directly bonded to the 6-position and the 7-position of the indeno(2,1-f)naphtho(1,2-b)pyran structure via the hetero atom like the compound represented by the following formula (18).
Inventors:
Junji Takenaka
Junji Momota
Kazuhiro Teranishi
Toshiaki Takahashi
Miki Miki
Hasumi Ito
Junji Momota
Kazuhiro Teranishi
Toshiaki Takahashi
Miki Miki
Hasumi Ito
Application Number:
JP2013503644A
Publication Date:
November 17, 2015
Filing Date:
March 07, 2012
Export Citation:
Assignee:
Tokuyama Corporation
International Classes:
C07D495/10; C07D277/60; C07D327/02; C07D327/04; C07D327/06; C07D339/06; C07D339/08; C07D497/10; C07D513/10; C07F7/08; C09K9/02; G02B5/23
Domestic Patent References:
| JP2009120536A |
Foreign References:
| WO2011025056A1 | ||||
| WO2011016582A1 | ||||
| WO2011010744A1 |
Attorney, Agent or Firm:
Masataka Oshima
Taizo Shiraishi
Hideo Katsumata
Taizo Shiraishi
Hideo Katsumata