US 6,201,087 B1 · Coumarin and quinolinone derivatives for the production of orienting layers for liquid crystals

Abstract

A polymer having the formula wherein M1 and M2 signify monomer units for homo- or copolymers. “x” and “y” indicate the mole fractions of the comonomers, with in each case 0<x≦1 and 0≦y<1 and x+y=1. The symbol “p” signifies 4 to 30,000 and “S1” and “S2” signify spacer units. “Q1” signifies a structural unit of the formula —A—(Z1—B)z—Z2— and “Q2” signifies a structural unit of the formula —A—(Z1—B)zR1. “A” and “B” each independently signify pyridine-2,5-diyl, pyrimidine-2,5-diyl, 1,4—Cyclohexylene,1,3-dioxane-2,5-diyl or optionally substituted 1,4-phenylene. “Z” and “Z2” each independently signify a single covalent bond selected from the group consisting of —CH2-ch2—, —CH2O—, —OCH2—, —CONR—, —RNCO—, —COO— or —OOC—. “R” signifies either a hydrogen or lower alkyl, where “R1” signifies hydrogen, optionally substituted alkyl or alkoxy, each having 1 to 12 carbon atoms, cyano, nitro or halogens. “z” is either 0 or 1 and “C” is either a photochemically dimerizable coumarin or quinoline derivative. Finally, “m” and “n” are each independently 0 or 1.

Claims14

Dependent claims

A polymer of the formula

wherein
M1 and M2 signify monomer units for homo- or copolymers;
x and y indicate mole fractions of the comonomers, with in each case 0<x≦1 and 0≦y<1 and x+y=1;
p signifies 4 to 30,000;
S1 and S2 signify spacer units;
Q1 signifies a-structural unit of the formula
—A—(Z1—B)—z—Z2— IIa;
Q2 signifies a structural unit of the formula
—A—(Z1—B)z—R1— IIb;
A and B each independently signify pyridine-2,5-diyl, pyrimidine-2,5-diyl, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl or optionally substituted 1,4-phenylene;
Z1 and Z2 each independently signify a single covalent bond, —CH2—CH2—, —CH2O—, —OCH2— —CONR—, —RNCO—, —COO— or —OOC—;
R signifies hydrogen or lower alkyl;
R1 signifies hydrogen, optionally substituted alkyl or alkoxy with in each case 1 to 12 carbon atoms, cyano, nitro or halogen;
z signifies 0 or 1;
C signifies a photochemically dimerizable quinolinone derivative;
and
m and n each independently signify 0 or 1.

14 more elements

A polymer of the formula

wherein
M1 and M2 signify monomer units for homo- or copolymers;
x and y indicate mole fractions of the comonomers, with in each case 0<x≦1 and 0≦y<1 and x+y=1;
p signifies 4 to 30,000;
S1 and S2 signify spacer units;
Q1 signifies a structural unit of the formula
—A—(Z1—B)z—Z2— IIa;
Q2 signifies a structural unit of the formula
—A—(Z1—B)z—R1— IIb;
A and B each independently signify pyridine-2,5-diyl, pyrimidine-2,5-diyl, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl or optionally substituted 1,4-phenylene;
Z1 and Z2 each independently signify a single covalent bond, —CH2—CH2—, —CH2O—, —OCH2— —CONR—, —RNCO—, —COO— or —OOC—;
R signifies hydrogen or lower alkyl;
R1 signifies hydrogen, optionally substituted alkyl or alkoxy with in each case 1 to 12 carbon atoms, cyano, nitro or halogen;
z signifies 0 or 1;
C signifies a photochemically dimerizable coumarin derivative which is linked in the 5-, 6-, 7- or 8-position with the spacer S1 or Q1;
and
m and n each independently signify 0 or 1.

14 more elements

Dependencies are inferred from the claim text.

Coumarin and quinolinone derivatives for the production of orienting layers for liquid crystals

Life of this patent

Coumarin and quinolinone derivatives for the production of orienting layers for liquid crystals

Life of this patent

Abstract

Claims14