Patent ID: 7670505

Claim:
A compound of the general formula I wherein: Z 1 , Z 2 are each independently hydrogen, optionally substituted C 1 -C 20 -alkyl in which the carbon chain may be interrupted by oxygen atoms in ether function, sulfur atoms in thioether function or by nonadjacent imino or C 1 -C 4 -alkylimino groups, or reactive radicals by means of which polymerization can be brought about; A 1 , A 2 are each independently spacers having from 1 to 30 carbon atoms, in which the carbon chain may be interrupted by oxygen atoms in ether function, sulfur atoms in thioether function or by nonadjacent imino or C 1 -C 4 -alkylimino groups; Y 1 , Y 2 are each independently a chemical single bond, oxygen, sulfur, —CO—, —O—CO—, —CO—O—, —S—CO—, —CO—S—, —NR—CO— or —CO—NR—; Y 3 is a chemical single bond, oxygen, sulfur, —CR═CR—, —C≡C—, —CR═CR—CO—O—, —O—CO—CR═CR—, —C≡C—O—, —O—C≡C—, —CH 2 —CH 2 —, —CH 2 —O—, —O—CH 2 —, —CH 2 —S—, —S—CH 2 —, —CO—, —O—CO—, —CO—O—, —S—CO—, —CO—S—, —NR—CO—, —CO—NR—, —O—CO—O—, —O—CO—NR— or —NR—CO—O—; R is hydrogen or C 1 -C 4 -alkyl; T 2 is a divalent saturated or unsaturated, optionally substituted iso- or heterocyclic radical; s is 0, 1, or 2; when s>0, the variables T 2 may be same as one another or different from one another; when s>0, the variables Y 3 may be same as one another or different from one another; and both hydrogen atoms in the 2,6-naphthyl radical and hydrogen atoms bonded to carbon atoms in the variables Z 1 , Z 2 , A 1 , A 2 , Y 3 , R, and T 2 may be substituted partly or fully by halogen atoms.