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    • 7. 发明公开
    • A composite polymer/liquid crystal material suitable for modulated light transmission, and the process for its manufacture
    • 液晶/高分子复合材料为调制光传输,并处理它的制备
    • EP0799879A1
    • 1997-10-08
    • EP97830144.8
    • 1997-03-25
    • MINISTERO DELL' UNIVERSITA' E DELLA RICERCA SCIENTIFICA E TECNOLOGICA
    • De Filpo, GiovanniChidichimo, Giuseppe
    • C09K19/54G02F1/1333
    • G02F1/1334C09K19/544G02F2001/13345
    • A new type of composite polymer/liquid crystal material is made of a mixture of the two components, in which the liquid crystal is not encapsulated by the polymer matrix, but is trapped therein in an irregular and continuous manner.
      The new material preserves the mechanical and polymer adhesion properties, and can be used as an active electrolyte component in large surface displays.
      The new materials, known as Polymer Entrapped Liquid Crystals (PELC), are opaque materials, highly scattering, that can become highly transparent by application of an electrical field.
      Furthermore, unlike other polymer/liquid crystal compounds, their transparency does not change with changes in the angle of view, and they are thus particularly of use in applications with large surface areas and controllable optical transparency.
      A process is also described for manufacture of this material, consisting in a phase separation induced by an extremely fast polymerisation, which is known as Fast Polymerisation Induced Phase Separation (FPIPS for short).
    • 一种新型复合高分子/液晶材料制成的两个部件,其中,所述液晶没有被聚合物包封的基质的混合物,但在其中截留在不规则和连续方式进行。 这种新材料保持了机械和聚合物的粘合性能,并且可以用作在大的表面显示电解质活性组分。 这种新材料,称为聚合物包埋液晶(PELC),是不透明的材料,高散射,确实可以成为通过电场的应用高度透明。 进一步,不像其它的高分子/液晶化合物,它们的透明性不随视角的变化而变化,并且因此,它们特别的使用在具有大表面积和可控制的光学透明性的用途。 因此,一个过程被描述为制造该材料的,在通过在极几乎聚合诱导的相分离,由所有这被称为快速聚合诱导的相分离(FPIPS的简称)。