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US 2007/0179266 A1Published application
Polymerizable copolymers for alignment layers
AssigneeRolic AG
InventorPeggy Studer
Life of this patent
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Abstract
Composition comprising at least one ethylenically unsaturated monomer to which a photochemically isomerizable or dimerizable molecule is covalently bonded, and at least one ethylenically unsaturated monomer to which a sensitizer is covalently bonded, are outstandingly suitable for producing polymeric alignment layers for liquid crystals.
Claims12
Composition comprising
- a) at least one ethylenically unsaturated monomer to which a photochemically isomerizable or dimerizable molecule is covalently bonded,
- b) at least one ethylenically unsaturated monomer to which a sensitizer is covalently bonded, and
- c) optionally other ethylenically unsaturated comonomers.
Composite material composed of a substrate and a thin layer of a polymerizable composition or of a copolymer of this composition, comprising
- a) at least one ethylenically unsaturated monomer to which a photochemically isomerizable or dimerizable molecule is covalently bonded,
- b) at least one ethylenically unsaturated monomer to which a sensitizer is covalently bonded, and
- c) optionally other ethylenically unsaturated comonomers.
Dependencies are inferred from the claim text.