Cholesteric liquid crystal drying process and solvent

Details Cholesteric liquid crystal drying process and solvent Cholesteric liquid crystal drying process and solvent

2005-07-05

2005-07-05

Huff, Mark F. (Department: 1756)

Compositions

Liquid crystal compositions

C349S186000, C427S162000

Reexamination Certificate

active

06913708

ABSTRACT:
The invention provides methods of forming a cholesteric liquid crystal layer that include forming a cholesteric liquid crystal composition, depositing the cholesteric liquid crystal composition onto a substrate, and initially drying the cholesteric liquid crystal composition at a temperature at or below about 90° C. so that the cholesteric liquid crystal composition has at least 80% solids remaining. The invention also provides methods of forming a cholesteric liquid crystal layer that include forming a cholesteric liquid crystal composition, depositing the cholesteric liquid crystal composition onto a substrate, and initially drying the cholesteric liquid crystal composition at a temperature at or below about 90° C., wherein the drying is accomplished using a technique that provides little or no airflow. The invention further provides a cholesteric liquid crystal composition that includes at least one cholesteric liquid crystal precursor and 1,3-dioxolane.

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