Patent ID: 6849203

Claim:
A compound of formula I wherein M is (CH 2 ) i , wherein one CH 2 group may also be replaced by NR 0 , O or S, where M is not S, SCH 2 , or OCH 2 , i is 1, 2, 3 or 4, R 0 is H or alkyl with 1-4 C atoms, L is halogen, CN, SCN, NO 2 , SF 5 or an alkyl, alkoxy, alkylcarbonyl or alkoxycarbonyl group with 1-4 C atoms, wherein one or more H atoms may be substituted with F or Cl, r is 0, 1, 2, 3 or 4, R 1 is in each case independently OH, O—B, OCH 2 B or has one of the meanings of R given below, k is 0, 1, 2, 3 or 4, A and B are independently of each other an aromatic or alicyclic group with 4-12 C-atoms, Z is in each case independently —O—, —S—, —CO—, —COO—, —OCO—, —CO—NR 0 —, —NR 0 —CO—, —CH 2 CH 2 —, —CF 2 CF 2 —, —CH 2 CF 2 —, —OCH 2 —, —CH 2 O—, —SCH 2 —, —CH 2 S—, —CF 2 O—, —OCF 2 —, —CH═CH—, —CF═CF—, —CH═CF—, —(CH 2 ) 4 —, —CH═CH—COO—, —OCO—CH═CH—, —OOC—CHR 00 —OOC—, —COO—CHR 00 —COO—, —C≡C— or a single bond, R 00 is straight chain or branched alkyl or alkoxy with 1-8 C atoms or phenyl that is optionally mono- or polysubstituted by L, m is 0, 1 or 2, R is halogen, NO 2 , CN, SCN, SF 5 , straight chain, branched or cyclic alkyl with 1-25 C atoms wherein one or more CH 2 groups can also be replaced by —O—, —S—, —CO—, —NR 0 —, —CH═CH—, —C≡—C— in such a manner that O and/or S atoms are not linked directly to one another, and wherein one or more H-atoms can also be replaced by F or Cl or phenyl that is optionally mono- or polysubstituted by L, or is P-(Sp-X) n —, P is a polymerizable group, Sp is a spacer group with 1-20 C atoms, X has one of the meanings of Z, and n is 0 or 1.