Crosslinkable, photoactive polymers and their use
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United States of America Patent
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Issued Date -
Dec 29, 2005
app pub date -
Jul 13, 2005
filing date -
Dec 6, 2002
priority date (Note) -
Abandoned
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Abstract
Copolymers composed of (a) at least one monomer from the group of acrylates, methacrylates, acrylamides and methacrylamides, to each of which is bonded covalently, directly or via a bridging group, a photochemically isomerizable or dimerizable molecule, (b) at least one polyoxyalkyl ester or one polyoxyalkylamide of an ethylenically unsaturated mono- or dicarboxylic acid, or one polyoxyalkyl ether of an ethylenically unsaturated alcohol, and (c) optionally, other ethylenically unsaturated comonomers are outstandingly suitable as alignment layers for liquid crystals.
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