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US 6,548,127 B1Granted
Liquid-crystalline photocrosslinkable mixture
AssigneeRolic AG
InventorsCarsten Benecke, Richard Buchecker, Guy Marck
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Abstract
Photocrosslinkable, mesogenic mixtures, especially for optical or electro-optical devices, exhibit improved properties when, in addition to containing two or more liquid-crystalline monomers each having at least two terminal polymerizable groups, they contain at least one non-liquid-crystalline monomer having no or, at most, one alicyclic or aromatic structural unit and having at least one terminal polymerizable group.
Claims6
A method for reducing the formation of tilt domains in a liquid crystal polymer film, wherein the method comprises:
- forming a mixture of at least two non-crosslinked liquid-crystalline monomers, each having at least two terminal polymerizable groups;
- adding at least one non-liquid-crystalline monomer to the mixture;
- and,
- crosslinking the combined mixture of the liquid-crystalline and non-liquid-crystalline monomers to make the film.
1 more element
Dependencies are inferred from the claim text.