发明授权
US5310909A Photochromic compounds, a process for their preparation, and their use
失效
光致变色化合物，其制备方法及其用途
- 专利标题： Photochromic compounds, a process for their preparation, and their use
- 专利标题（中）： 光致变色化合物，其制备方法及其用途
-
申请号： US616550申请日： 1990-11-21
-
公开(公告)号： US5310909A公开(公告)日： 1994-05-10
- 发明人: Evelyn Fischer , Walter Fischer , Jurgen Finter , Kurt Meier , Martin Roth
- 申请人： Evelyn Fischer , Walter Fischer , Jurgen Finter , Kurt Meier , Martin Roth
- 申请人地址： NY Ardsley
- 专利权人： Ciba-Geigy Corporation
- 当前专利权人： Ciba-Geigy Corporation
- 当前专利权人地址： NY Ardsley
- 优先权： CHX4270/89 19891129
- 主分类号： G03F7/028
- IPC分类号： G03F7/028 ; C07D219/06 ; C07D311/86 ; C07D335/16 ; C07D401/12 ; C07D407/12 ; C07D409/12 ; C08F2/50 ; C09K3/00 ; C09K9/02 ; G03F7/031 ; G03F7/038 ; H01R13/52 ; C07D471/22 ; C07D409/14
摘要：
Compounds of the formula I ##STR1## in which X is O, S, SO, SO.sub.2 or NR.sub.13, R.sub.13 is, for example, methyl, and R.sub.1 to R.sub.12, independently of one another, are, for example, H, C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 Alkoxy, halogen or --CN. The compounds are photosensitive and photochromic and are suitable as photosensitizers and simultaneously as color indicators, and as photoswitchable color filters.
公开/授权文献
- US4606612A Optical phase filter using liquid crystal 公开/授权日：1986-08-19