Patent ID: 11939512
Assignee: MERCK PATENT GMBH
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C  G

Claim 3:
4. The liquid-crystalline medium according to claim 1, wherein
R1 identically or differently, denotes a straight-chain alkyl or alkoxy having 1 to 15 C atoms, branched alkyl or alkoxy having 3 to 15 C atoms, or N(Rb)2,
Rb is, independently of one another, a straight-chain alkyl having 1 to 9 C atoms, R2 identically or differently, denotes a straight-chain alkyl having 1 to 9 C atoms,
a, b, c, and d each denote 1,
Z1 is a single bond, and
Z2 is a single bond.