Polymerisable compounds

摘要

Substituted biphenyl compounds (I), are new. Substituted biphenyl compounds of formula (I), are new. R1a, R1b : P1-Sp- (preferred), H, F, Cl, Br, I, -CN, -NCO, -NCS, -OCN, -SCN, SF 5or 1-25C alkyl, where: each one or more non-adjacent CH 2groups are independently replaced by -C(R 00>)=C(R 000>)-,-C?=C-,-N(R 00>)-, -O-, -S-, -CO, -CO-O-, -O-CO-, -O-CO-O-, such that the O and/or S atoms are not directly linked, one or more H-atoms are replaced by F, Cl, Br, I, CN or P1-Sp-, and at least one of the remainders of R1a and R1b contains P1-Sp-; P1 : a polymerizable group; Sp : a single bond (preferred) or a spacer group; R 00>, R 000> : H or 1-12C alkyl; and L 1>, L 2> : F (preferred) or H. Independent claims are included for: (1) the preparations of (I); (2) a liquid crystal-medium comprising: (I) and one or more additional compounds which can be mesogenic, liquid crystalline and/or polymerizable; or a polymerizable component (A) containing (I) and a liquid crystalline component (B) containing one or more low molecular compounds; (3) a polymer obtained by a polymerization of (I) or the liquid crystal-medium; (4) a polymer foil obtained by the polymerization of a layer containing (I) or the liquid crystal-medium, in an uniformly arranged condition in the liquid crystalline phase; and (5) a liquid crystal-display of a polymer-stabilized, or polymer sustained alignment types, comprising a liquid crystal-cell consisting of two substrates, where at least one substrate is transparent and another substrate exhibiting an electrode layer, and a layer present between the substrate of liquid crystal-layer containing polymerized component and a low molecular weight component, where: the polymerized component is obtained by the polymerization of one or more polymerizable compounds between the substrates of the liquid crystal cell in the liquid crystal-medium under the formation of an electrical voltage, and the liquid crystal-display contains (I) or the liquid crystal-medium. [Image].