Patent ID: 11905448
Assignee: MERCK PATENT GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 9:
10. The LC medium according to claim 1, wherein the one or more polymerizable compounds are selected from formula M

Ra—B1—(Zb—B2)m—Rb  M

in which the individual radicals, on each occurrence identically or differently, and each, independently of one another, have the following meaning:
Ra and Rb P, P-Sp-, H, F, Cl, Br, I, —CN, —NO2, —NCO, —NCS, —OCN, —SCN, SF5, or straight-chain alkyl having 1 to 25 C atoms or branched alkyl having 3 to 25 C atoms, in which, in addition, one or more non-adjacent CH2 groups may each be replaced, independently of one another, by —C(R0)═C(R00)—, —C≡C—, —N(R00)—, —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a way that o and/or S atoms are not linked directly to one another, and in which, in addition, one or more H atoms may each be replaced by F, Cl, Br, I, CN, P or P-Sp-, where, if B1 and/or B2 contain a saturated C atom, Ra and/or Rb may also denote a radical which is spiro-linked to this saturated C atom,
wherein at least one of the radicals Ra and Rb denotes or contains a group P or P-Sp-,
P a polymerizable group,
Sp a spacer group or a single bond,
B1 and B2 an aromatic, heteroaromatic, alicyclic or heterocyclic group, having 4 to 25 ring atoms, which may also contain fused rings, and which is unsubstituted, or mono- or polysubstituted by L,
Zb —O—, —S—, —CO—, —CO—O—, —OCO—, —O—CO—O—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —(CH2)n1—, —CF2CH2—, —CH2CF2—, —(CF2)n1—, —CH═CH—, —CF═CF—, —C═C—, —CH═CH—COO—, —OCO—CH═CH—, CR0R00, or a single bond,
R0 and R00 H or alkyl having 1 to 12 C atoms,
m 0, 1, 2, 3 or 4,
n1 1, 2, 3 or 4,
L P, P-Sp-, OH, CH2OH, F, Cl, Br, I, —CN, —NO2, —NCO, —NCS, —OCN, —SCN, —C(═O)N(Rx)2, —C(═O)Y1, —C(═O)Rx, —N(Rx)2, optionally substituted silyl, optionally substituted aryl having 6 to 20 C atoms, straight-chain alkyl- or alkoxy having 1 to 25 C atoms, branched alkyl or alkoxy having 3 to 25 C atoms, straight chain alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having 2 to 25 C atoms, or branched alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxy-carbonyloxy having 4 to 25 C atoms, in which, in addition, one or more H atoms may each be replaced by F, Cl, P or P-Sp-,
Y1 halogen,
Rx P, P-Sp-, H, halogen, straight-chain alkyl having 1 to 25 C atoms, branched alkyl having 3 to 25 C atoms, or cyclic alkyl having 3 to 25 C atoms, in which, in addition, one or more non-adjacent CH2 groups may each be replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a way that O and/or S atoms are not linked directly to one another, and in which, in addition, one or more H atoms may each be replaced by F, Cl, P or P-Sp-, an optionally substituted aryl or aryloxy group having 6 to 40 C atoms, or an optionally substituted heteroaryl or heteroaryloxy group having 2 to 40 C atoms.