Invention Grant
- Patent Title: Chromene compound
- Patent Title (中): 色烯化合物
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Application No.: US13496689Application Date: 2010-09-15
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Publication No.: US08691120B2Publication Date: 2014-04-08
- Inventor: Toshiaki Takahashi , Junji Takenaka , Junji Momoda , Mitsuyoshi Sando , Kazuhiro Teranishi
- Applicant: Toshiaki Takahashi , Junji Takenaka , Junji Momoda , Mitsuyoshi Sando , Kazuhiro Teranishi
- Applicant Address: JP Shunan-Shi
- Assignee: Tokuyama Corporation
- Current Assignee: Tokuyama Corporation
- Current Assignee Address: JP Shunan-Shi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-217583 20090918
- International Application: PCT/JP2010/066467 WO 20100915
- International Announcement: WO2011/034202 WO 20110324
- Main IPC: G02B5/23
- IPC: G02B5/23 ; F21V9/00 ; G02B5/02 ; G02C7/10 ; G02F1/361 ; G03B11/00 ; G02F1/03 ; G02F1/07
Abstract:
A photochromic chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as its basic skeleton, an aryl group or a heteroaryl group at the 6-position carbon atom of the structure and an electron donor group having a Hammett constant σp of not more than −0.1 at the 7-position carbon atom.
Public/Granted literature
- US20120170098A1 CHROMENE COMPOUND Public/Granted day:2012-07-05
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