发明授权
- 专利标题: Dichroic azo dyes
- 专利标题(中): 二色偶氮染料
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申请号: US618937申请日: 1996-03-20
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公开(公告)号: US5589100A公开(公告)日: 1996-12-31
- 发明人: Robert P. Grasso , Michael K. O'Brien , Paul J. Shannon
- 申请人: Robert P. Grasso , Michael K. O'Brien , Paul J. Shannon
- 申请人地址: DE Wilmington
- 专利权人: Hercules Incorporated
- 当前专利权人: Hercules Incorporated
- 当前专利权人地址: DE Wilmington
- 主分类号: C07D239/74
- IPC分类号: C07D239/74 ; C07C211/58 ; C09B29/01 ; C09B29/12 ; C09B29/52 ; C09B31/14 ; C09B35/04 ; C09B35/06 ; C09B67/20 ; C09K19/00 ; C09K19/60 ; G02F1/137 ; C09K19/52
摘要:
Arylazo and poly(arylazo) dyes having at least one core radical selected from naphthyl or anthracyl and having at least one 2,3-dihydro-1,3-dialkyl perimidine substituent, a guest-host composition comprising a liquid crystal host solvent and the arylazo or poly(arylazo) dichroic dye, and a liquid crystal display comprising the guest-host composition, are disclosed.
公开/授权文献
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