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    • 7. 发明授权
    • Tolan compound and liquid crystal composition containing the same
    • 托兰化合物和含有它的液晶组合物
    • US06174573B1
    • 2001-01-16
    • US09314297
    • 1999-05-19
    • Tomijiro NaitoKikuo YamamotoKatsuji NiinoYumiko Sakamaki
    • Tomijiro NaitoKikuo YamamotoKatsuji NiinoYumiko Sakamaki
    • C09K1930
    • C09K19/3059C07C69/75C07C69/76C09K19/18C09K19/2014Y10T428/10
    • A novel tolan compound of the formula (I): wherein A is C1-10 alkyl, C1-10 alkoxy, cyclohexyl substituted by C1-10 alkyl at 4 position, cyclohexyl substituted by C1-10 alkoxy group at 4 position or a group of the formula: wherein Y is hydrogen or halogen and Z is C1-10 alkyl or halogen; B is a single bond or —CO—O— or —O—CO—; D is hydrogen, C1-10 alkyl, cyclohexyl substituted by C1-10 alkyl at 4 position; and Z represents a hydrogen atom or a halogen atom. The tolan compound can increase the N-I point, decrease the viscosity, and increase the double refractive index of a liquid crystal composition without affecting the viscosity and threshold voltage Vth, and is mutually soluble with various other liquid crystal compounds, so that the compound can be used as a constituent of a liquid crystal composition in combination with these other liquid crystal materials to improve the properties of the composition.
    • 式(I)的新型兰烷化合物:其中A为C 1-10烷基,C 1-10烷氧基,被4位上被C 1-10烷基取代的环己基,在4位被C 1-10烷氧基取代的环己基或 其中Y是氢或卤素,Z是C 1-10烷基或卤素; B是单键或-CO-O-或-O-CO-; D是氢,C 1-10烷基,在C 4位上被C 1-10烷基取代的环己基; Z表示氢原子或卤素原子。 Tolan化合物可以增加NI点,降低粘度,并且增加液晶组合物的双重折射率而不影响粘度和阈值电压Vth,并且与各种其它液晶化合物相互溶解,使得化合物可以 用作与这些其它液晶材料组合的液晶组合物的组分以改善组合物的性质。