发明授权
- 专利标题: Liquid crystal composition and heat-sensitive recording medium using this material
- 专利标题(中): 液晶组合物和使用这种材料的热敏记录介质
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申请号: US09590599申请日: 2000-06-09
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公开(公告)号: US06464897B1公开(公告)日: 2002-10-15
- 发明人: Noaya Suzuki , Shoji Kotani , Hideaki Ueda
- 申请人: Noaya Suzuki , Shoji Kotani , Hideaki Ueda
- 优先权: JP11-164729 19990611
- 主分类号: C09K1936
- IPC分类号: C09K1936
摘要:
Cholesteric liquid crystal compositions and a recording medium which includes cholesteric liquid crystal composition are disclosed. The cholesteric liquid crystal composition has a characteristic, in a cholesteric phase, of reflecting visible light in accordance with temperature. By rapidly cooling the display from a cholesteric phase, the material can be solidified in a reflection state. The cholesteric material also has the characteristic during a transition from a solid phase to a cholesteric phase of having of an enthalpy &Dgr;Hch at a substantially constant value during a time when a temperature thereof increases during one of differential thermal analysis and differential scanning calorimetry.
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