Patent ID: 9334366
Filing Date: 2016-05-10
CPC Classification: C07C,C08G,C09K,G02F

Claim Text:
1. Polymer or oligomer formed from at least one monomer (I): wherein, A represents an unsubstituted or substituted carbocyclic or heterocyclic aromatic group selected from a monocyclic ring of five or six atoms, two adjacent monocyclic rings of five or six atoms, a bicyclic ring system of eight, nine or ten atoms, or a tricyclic ring system of thirteen or fourteen atoms or a group “E”; B represents an unsubstituted or substituted, straight-chain C D represents a polymerizable group; E represents an aromatic group, a single bond, an oxygen atom, a sulphur atom, —NH—, —N(C S X, Y each independently from each other represents hydrogen, fluorine, bromine, chlorine, nitrile, or unsubstituted or with fluorine substituted C n, n1 each independently from each other represents 1, 2, 3 or 4, with the proviso that if n is 2, 3, or 4, each A, B, E, S wherein the polymer or oligomer orients perpendicular to the polarization direction of polarized actinic light when irradiated with polarized light, for the photoalignment of liquid crystals.