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Title:
CHROMENE COMPOUND
Document Type and Number:
Japanese Patent JP2009067680
Kind Code:
A
Abstract:

To provide a chromene compound giving good photochromic characteristics.

This chromene compound represented by general formula (1) (wherein R1, R2, R3, R4, R5, R6, R7, R8 are each a substituent) is provided.


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Inventors:
KAWABATA YUICHIRO
TAKENAKA JUNJI
Application Number:
JP2007234195A
Publication Date:
April 02, 2009
Filing Date:
September 10, 2007
Export Citation:
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Assignee:
TOKUYAMA CORP
International Classes:
C07D311/78; C07D311/96; C07D413/10; C08F2/44; C08K5/1545; C08L101/00; C09K9/02; G02B5/23; G02C7/10
Domestic Patent References:
JP2005289812A2005-10-20
Foreign References:
WO2007086532A12007-08-02
WO2007078529A12007-07-12
US5869658A1999-02-09
WO2006045495A12006-05-04



 
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