发明公开
- 专利标题： Dielectric materials
- 专利标题（中）： 电介质材料。
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申请号： EP83301518.3申请日： 1983-03-18
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公开(公告)号： EP0091226A2公开(公告)日： 1983-10-12
- 发明人: Harrison, Kenneth John , Raynes, Edward Peter , Saunders, Frances Carolyn , Thompson, David John , Newton, David Francis
- 申请人： Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland
- 申请人地址： Whitehall London SW1A 2HB GB
- 专利权人： Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland
- 当前专利权人： Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland
- 当前专利权人地址： Whitehall London SW1A 2HB GB
- 代理机构： McCormack, Derek James (GB)
- 优先权： GB8210345 19820407; GB8223852 19820818
- 主分类号： G02F1/137
- IPC分类号： G02F1/137 ; C09K19/60
摘要：
A material suitable for a guest-host liquid crystal device comprises a solution of a liquid crystal material and a pleochroic dye characterised in that the dye comprises at least one anthraquinone compound free from water-solubilising and ionic substituents and having the formula:
wherein each of R and R' independently represents an n-alkyl group having from 4 to 7 carbon atoms inclusive and wherein each of R 2 and R 3 is independently selected from hydrogen and alkyl groups having from 1 to 4 carbon atoms inclusive.
wherein each of R and R' independently represents an n-alkyl group having from 4 to 7 carbon atoms inclusive and wherein each of R 2 and R 3 is independently selected from hydrogen and alkyl groups having from 1 to 4 carbon atoms inclusive.
公开/授权文献
- EP0091226B1 Dielectric materials 公开/授权日：1986-10-01
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