13-08-2020 дата публикации
Номер: US20200255736A1
The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula CO-1, 2. Polymerisable LC material according to claim 1 , wherein at least one di- or multireactive mesogenic compound is selected of formula DRM{'br': None, 'sup': 1', '1', '2', '2, 'P-Sp-MG-Sp-P\u2003\u2003DRM'}wherein{'sup': 1', '2, 'Pand Pindependently of each other denote a polymerisable group,'}{'sup': 1', '2, 'Spand Spindependently of each other are a spacer group or a single bond, and'} {'br': None, 'sup': 1', '1', '2, 'sub': 'n', '-(A-Z)-A-\u2003\u2003MG'}, 'MG is a rod-shaped mesogenic group, which is preferably selected of formula MG'}wherein{'sup': 1', '2', '1, 'Aand Adenote, in case of multiple occurrence independently of one another, an aromatic or alicyclic group, which optionally contains one or more heteroatoms selected from N, O and S, and is optionally mono- or polysubstituted by L,'}{'sup': 1', '00', '000', '00', '00', '00', '000, 'sub': 2', '5, 'Lis P-Sp-, F, Cl, Br, I, —CN, —NO, —NCO, —NCS, —OCN, —SCN, —C(═O)NRR, —C(═O)OR, —C(═O)R, —NRR, —OH, —SF, optionally substituted silyl, aryl or heteroaryl with 1 to 12 C atoms, straight chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy with 1 to 12, C atoms, wherein one or more H atoms are optionally replaced by F or Cl,'}{'sup': 00', '000, 'Rand Rindependently of each other denote H or alkyl with 1 to 12 C-atoms,'}{'sup': 1', '00', '00', '00', '000', '00', '00', '00', '1', '2, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', 'n1', '2', '2', '2', '2', '2', '2, 'Zdenotes, in case of multiple occurrence independently of one another, —O—, —S—, —CO—, —COO—, —OCO—, —S—CO—, —CO—S—, —O—COO—, —CO—NR—, —NR—CO—, —NR—CO—NR, —NR—CO—O—, —O—CO—NR—, —OCH—, —CHO—, —SCH—, —CHS—, —CFO—, —OCF—, —CFS—, —SCF—, —CHCH—, —(CH), —CFCH—, —CHCF—, —CFCF—, —CH═N—, —N═CH—, —N═N—, —CH═CR, —CY═CY—, —C≡C—, —CH═CH—COO—, —OCO ...
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