发明授权
EP0505448B1 LIGHT MODULATING MATERIAL COMPRISING POLYMER DISPERSED LIQUID CRYSTALS
失效
材料用于光调制的含液体晶体POLYMERDISPERSIERTE
- 专利标题: LIGHT MODULATING MATERIAL COMPRISING POLYMER DISPERSED LIQUID CRYSTALS
- 专利标题(中): 材料用于光调制的含液体晶体POLYMERDISPERSIERTE
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申请号: EP91901304.5申请日: 1990-12-13
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公开(公告)号: EP0505448B1公开(公告)日: 1997-04-23
- 发明人: COATES, David
- 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: Beckham, Robert William
- 优先权: GB8928282 19891214
- 国际公布: WO9109092 19910627
- 主分类号: C09K19/00
- IPC分类号: C09K19/00 ; C09K19/12 ; G02F1/1333
摘要:
A light modulating material is disclosed, comprising a solid, light transmissive, polymeric matrix having dispersed within said matrix droplets of a liquid crystalline composition, wherein said composition is a mixture of at least 2 compounds, at least one of said compounds having general formula (I), where n is 1 or 2, the fluorine substituent(s) may be in any of the available substitution positions and R1 is C¿1-12? alkynyl, hydrogen, R, RO or RCO where R is alkyl or perfluoroalkyl and at least one other of said compounds having general formula (II), where m is 0 or 1 and R?2¿ is hydrogen or C¿1-12? alkyl or alkoxy.
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