| abstract |
The present invention provides a process for preparing a multilayer cholesteric film containing two or more polymerized cholesteric liquid crystal (CLC) materials having planar orientation. The cholesteric helical axis is oriented substantially perpendicular to the plane of the layer. Single layer preparation The transfer of unpolymerized material between adjacent layers is minimized for multilayer cholesteric films obtainable by such a process, and for decorative and safety applications. In the decoration and liquid crystal pigments, polarizing plates, compensators, Processes prepared in optical elements such as alignment films, color filters or holographic elements and minimized for the use of multilayer cholesteric films. |