Patent ID: 11873439
Assignee: MERCK PATENT GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C  G

Claim 5:
6. The polymerizable LC material according to claim 1, comprising one or more compounds of formula ND,, wherein
U1,2 are independently of each other, , including their mirror images, wherein the rings U1 and U2 are each bonded to the group -(B)q- via the axial bond, and one or two non-adjacent CH2 groups in these rings are optionally replaced by O and/or S, and the rings U1 and U2 are optionally substituted by one or more groups L,
L is, on each occurrence identically or differently, F, Cl, CN, NO2, CH3, C2H5, C(CH3)3, CH(CH3)2, CH2CH(CH3)C2H5, OCH3, OC2H5, COCH3, COC2H5, COOCH3, COOC2H5, CF3, OCF3, OCHF2, OC2F5 or P-Sp-,
Q1,2 are independently of each other CH or SiH,
Q3 is C or Si,
B is in each occurrence independently of one another —C≡C—, —CY1═CY2— or an optionally substituted aromatic or heteroaromatic group,
Y1,2 are independently of each other H, F, Cl, CN or R0,
q is an integer from 1 to 10,
A1-4 are independently of each other non-aromatic, aromatic or heteroaromatic carbocyclic or heterocyclic groups, which are optionally substituted by one or more groups R5, and wherein each of -(A1-Z1)m-U1-(Z2-A2)n- and -(A3-Z3)o-U2-(Z4-A4)p- does not contain more aromatic groups than non-aromatic groups,
Z1-4 are independently of each other —O—, —S—, —CO—, —COO—, —OCO—, —O—COO—, —CO—NR0—, —NR0—CO—, —NR0—CO—NR00—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —CH2CH2—, —(CH2)3—, —(CH2)4—, —CF2CH2—, —CH2CF2—, —CF2CF2—, —CH═CH—, —CY1═CY2—, —CH═N—, —N═CH—, —N═N—, —CH═CR0—, —C≡C—, —CH═CH—COO—, —OCO—CH═CH—, CR0R00 or a single bond,
R0 and R00 are independently of each other H or alkyl with 1 to 12 C-atoms,
m and n are independently of each other 0, 1, 2, 3 or 4,
o and p are independently of each other 0, 1, 2, 3 or 4,
R1-5 are independently of each other identical or different groups H, halogen, —CN, —NC, —NCO, —NCS, —OCN, —SCN, —C(═O)NR0R00, —C(═O)X0, —C(═O)R0, —NH2, —NR0R00, —SH, —SR0, —SO3H, —SO2R0, —OH, —NO2, —CF3, —SF5, P-Sp-, optionally substituted silyl, or carbyl or hydrocarbyl with 1 to 40 C atoms that is optionally substituted and optionally comprises one or more hetero atoms, or denote P or P-Sp-, or are substituted by P or P-Sp-, wherein the compounds comprise at least one group R1-5 denoting or being substituted by P or P-Sp-,
P is a polymerizable group, and
Sp is a spacer group or a single bond.