Circular UV polarizer
AssigneeMerck Patent GmbH
InventorsDavid Coates, Emma Jolliffe, Patrick Nolan
Life of this patent
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Abstract
The invention relates to a circular UV polarizer based on a polymerized mesogen being obtainable by curing by actinic radiation or by heat of a polymerizable composition which comprises the following components: a) a liquid mesogenic component A composed of one or more achiral mesogenic compounds having at least one polymerizable end group optionally linked via a spacer group to the mesogenic core, b) a component B composed of one or more chiral compounds in such an amount that the maximum wavelength of reflection (.lambda..sub.max) of the composition is between 320 and 440 nm, inclusive, and c) a photoinitiator or thermal initiator component C.
Claims17
A liquid crystal circular UV polarizer based on polymerized mesogens obtained by curing, with actinic radiation or heat, of a polymerizable composition comprising:
- a) a mesogenic component A comprising one or more achiral mesogenic compounds having at least one polymerizable end group linked, optionally via a spacer group to the mesogenic core,
- b) a component B comprising one or more chiral compounds in such an amount that the maximum wavelength of reflection (.lambda..sub.max) of the composition is between 320 and 440 nm, inclusive, and
- c) a photoinitiator or thermal initiator component C.
Dependencies are inferred from the claim text.