Polymerisable monocyclic compounds

A polymerizable compound of formula I

• wherein
• P is a polymerizable group CH2═CW1—COO—,
• CH2═CW2—O—, CH3—CH═CH—O—, or CH2═CW1—CO—NH—, with W1 being H, Cl, CN, phenyl or alkyl with 1 to 5 C-atoms, W2 being H or alkyl with 1 to 5 C-atoms, and k is 0 or 1,
• Sp is alkylene with 1 to 12 C atoms that is optionally mono- or polysubstituted by F and wherein one or more non-adjacent CH2 groups are replaced, in each case independently from one another, by —O—, —CH═CH— or —C═C—, and X is —O—, —COO—, —OCO—, —OCOO— or a single bond,
• X is —O—, —S—, —OCH2—, —CH2O—, —CO—, —COO—, —OCO—, —OCO—O—, —CO—NR0—, —NR0—CO—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CH═CH—COO—, —OOC—CH═CH— or a single bond,
• R is P-Sp-X,
• R0 is H or alkyl with 1 to 4 C atoms,
• L is F, or alkyl or alkoxy with 1 to 7 C atoms, or alkylcarbonyl, alkoxycarbonyl or alkylcarbonyloxy with 2 to 7 C atoms, wherein one or more H atoms are substituted by F, and
• r is 1, 2 or 3.

A polymerizable compound of formula I1a, I1b, or I1c,

• wherein
• P is a polymerizable group selected from CH2═CW1—COO—,
• CH2═CW2—O—, CH3—CH═CH—O—, HS—CW2W3—, HW2N—, HO—CW2W3—NH—, CH2═CW1—CO—NH—, OCN— and W4W5W6Si—, with W1 being H, Cl, CN, phenyl or alkyl with 1 to 5 C-atoms, W2 and W3 being independently of each other H or alkyl with 1 to 5 C-atoms, W4, W5 and W6 being independently of each other Cl, oxaalkyl or oxacarbonylalkyl with 1 to 5 C-atoms, and k is 0 or 1,
• m and n are identical or different integers from 0 to 12, and
• p and q are independently of each other 0 or 1,
• with the proviso that p is 0 when m is 0 and q is 0 when n is 0.

A liquid crystal mixture comprising at least one polymerizable compound of formula I

• wherein
• P is a polymerizable group selected from CH2═CW1—COO—,
• CH2═CW2—(O)k1—, CH3—CH═CH—O—, HO—CW2W3—, HS—CW2W3—, HW2N—, HO—CW2W3—NH—, CH2═CW1—CO—NH—, OCN— and W4W5W6Si—, with W1 being H, Cl, CN, phenyl or alkyl with 1 to 5 C-atoms, W2 and W3 being independently of each other H or alkyl with 1 to 5 C-atoms, W4, W5 and W6 being independently of each other Cl, oxaalkyl or oxacarbonylalkyl with 1 to 5 C-atoms, and k1 and k being independently of each other 0 or 1,
• Sp is a spacer group or a single bond,
• X is —O—, —S—, —OCH2—, —CH2O—, —CO—, —COO—, —OCO—, —OCO—O—, —CO—NR0—, —NR0—CO—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CH═CH—COO—, —OOC—CH═CH— or a single bond,
• R is P-Sp-X,
• R0 is H or alkyl with 1 to 4 C atoms,
• L is F, Cl, Br, I, CN, NO2, or alkyl, or alkoxy with 1 to 7 C atoms, alkylcarbonyl, alkoxycarbonyl or alkylcarbonyloxy with 2 to 7 C atoms, wherein one or more H atoms are optionally substituted by F or Cl, and
• r is 1, 2 or 3.

A liquid crystal display comprising in its active layer a polymerizable compound of formula I

• wherein
• P is a polymerizable group selected from CH2═CW1—COO—,
• CH2═CW2—(O)k1—, CH3—CH═CH—O—, HO—CW2W3—, HS—CW2W3—, HW2N—, HO—CW2W3—NH—, CH2═CW1—CO—NH—, OCN— and W4W5W6Si—, with W1 being H, Cl, CN, phenyl or alkyl with 1 to 5 C-atoms, W2 and W3 being independently of each other H or alkyl with 1 to 5 C-atoms, W4, W5 and W6 being independently of each other Cl, oxaalkyl or oxacarbonylalkyl with 1 to 5 C-atoms, and k1 and k being independently of each other 0 or 1,
• Sp is a spacer group or a single bond,
• X is —O—, —S—, —OCH2—, —CH2O—, —CO—, —COO—, —OCO—, —OCO—O—, —CO—NR0—, —NR0—CO—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CH═CH—COO—, —OOC—CH═CH— or a single bond,
• R is P-Sp-X,
• R0 is H or alkyl with 1 to 4 C atoms,
• L is F, Cl, Br, I, CN, NO2, or alkyl, or alkoxy with 1 to 7 C atoms, alkylcarbonyl, alkoxycarbonyl or alkylcarbonyloxy with 2 to 7 C atoms, wherein one or more H atoms are optionally substituted by F or Cl, and
• r is 1, 2 or 3,
• or a mixture, polymer, or polymer film, comprising the polymerizable compound of formula I.

A polymerizable compound of formula I

• wherein
• P is a polymerizable group CH2═CW1—COO—,
• CH2═CW2—O—, CH3—CH═CH—O—, HS—CW2W3—, HW2N—, HO—CW2W3—NH—, CH2═CW1—CO—NH—, or OCN—, with W1 being H, Cl, CN, phenyl or alkyl with 1 to 5 C-atoms, W2 and W3 being independently of each other H or alkyl with 1 to 5 C-atoms, and k is 0 or 1,
• Sp is a spacer group or a single bond,
• X is —O—, —S—, —OCH2—, —CH2O—, —CO—, —COO—, —OCO—, —OCO—O—, —CO—NR0—, —NR0—CO—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CH═CH—COO—, —OOC—CH═CH— or a single bond,
• R is P-Sp-X,
• R0 is H or alkyl with 1 to 4 C atoms,
• L is F, or alkyl or alkoxy with 1 to 7 C atoms, or alkylcarbonyl, alkoxycarbonyl or alkylcarbonyloxy with 2 to 7 C atoms, wherein one or more H atoms are substituted by F, and
• r is 2 or 3.