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    • 7. 发明授权
    • Ferroelectric liquid crystal polymer
    • 铁电液晶聚合物
    • US4844835A
    • 1989-07-04
    • US383
    • 1986-12-22
    • Shunji UchidaKazuharu MoritaKenji Hashimoto
    • Shunji UchidaKazuharu MoritaKenji Hashimoto
    • C08F20/30C09K19/38G02F1/1333
    • C08F20/30C09K19/3857G02F1/133365
    • A ferroelectric liquid crystal polymer comprising the recurring units represented by the following general formula: ##STR1## in which k is an integer of from 1 to 30, R.sub.1 is ##STR2## R.sub.2 is --COOR.sub.3, --OCOR.sub.3, --OR.sub.3, or --R.sub.3, in which R.sub.3 is ##STR3## R.sub.4 is --CH.sub.3 or Cl, m is 0 or an integer of from 1 to 10,n is 0 or an integer of from 1 to 10, providing that n is not 0, when R.sub.4 is --CH.sub.3.The ferroelectric liquid crystal polymer of the present invention not only exhibits a ferroelectricity even at temperatures in the vicinity of a room temperature, but also has so fast response speed to the external factors as to be able to display motion pictures, and may be advantageously used as display elements for large size screens and curved screens.
    • 一种铁电液晶聚合物,其包含由以下通式表示的重复单元:其中k为1至30的整数,R1为 + TR R2为 - COOR 3,-OCOR 3,-OR 3或-R 3,其中R 3为R 3为-CH 3或Cl,m为0或1至10的整数,n为0或1至10的整数, 当R4为-CH3时,n不为0。 本发明的铁电液晶聚合物即使在室温附近的温度下也显示出铁电性,而且对于能够显示动态图像的外部因素也具有如此快的响应速度,并且可以有利地使用 作为大尺寸屏幕和曲面屏幕的显示元件。
    • 9. 发明授权
    • Liquid-crystalline polymer
    • 液晶聚合物
    • US4818807A
    • 1989-04-04
    • US92612
    • 1987-09-03
    • Kazuharu MoritaShunji UchidaSatoshi Hachiya
    • Kazuharu MoritaShunji UchidaSatoshi Hachiya
    • C08G63/60C09K19/38C08G63/06
    • C09K19/3838C08G63/60
    • A liquid-crystalline polymer comprising repeating units of the following general formula ##STR1## wherein: R.sup.1 is --H, --CH.sub.3 or --C.sub.2 H.sub.5,1 is an integer having a value of 1 to 20,k is an integer having a value of 1 to 30,A is --O-- (oxygen) or --COO--,m is 0 or 1, andR.sup.2 is ##STR2## wherein Y is --COO-- or --OCO--, and R.sup.3 is --COOR.sup.4, --OCOR.sup.4, --OR.sup.4, --COR.sup.4 or --R.sup.4 whereR.sup.4 is ##STR3## R.sup.5 being --CH.sub.3, --CN or a halogen radical, n and p being independently an integer having a value of 0 to 10 with the proviso that if R.sup.5 is --CH.sub.3, p is not 0, X being a halogen radical, q being 0 or 1, and C* being an asymmetric carbon atom.The liquid-crystalline polymer not only exhibits liquid-crystalline properties and transfers to ferroelectric chiral smectic C phase at temperatures of a wide range including the vicinity of room temperature but also has a high speed in responding to external factors enabling to display motion pictures, and can be advantageously used as display elements of large size screens and curved screens.
    • 包含以下通式的重复单元的液晶聚合物,其中:R1是-H,-CH3或-C2H5,1是具有1至20的整数,k是具有值1的整数 至30,A为-O-(氧)或-COO-,m为0或1,并且R 2为-COO-或-OCO-,其中Y为-COO-或-OCO-, 并且R 3为-COOR 4,-OCOR 4,-OR 4,-COR 4或-R 4,其中R 4为-CH 3,-CN或卤素基团,n和p独立地为0至10的整数, 条件是如果R5是-CH3,p不为0,X为卤素基团,q为0或1,C *为不对称碳原子。 液晶聚合物不仅具有液晶性质,并且在包括室温附近的宽范围的温度下转移到铁电手性近晶C相,而且响应于能够显示电影的外部因素具有高速度,以及 可以有利地用作大尺寸屏幕和弯曲屏幕的显示元件。