Patent attributes
The present invention relates to alkyne compounds of the formula IP1—Y1-A1-Y3-(T1-B1-)m-T3-C≡C-T4-(B2-T2-)n-Y4-A2-Y2—P2 (I)in whichP1, P2 are each, independently of one another, hydrogen, C1-C12-alkyl, a polymerizable group or a group suitable for polymerization or a radical which carries a polymerizable group or a group suitable for polymerization,Y1, Y2, Y3, Y4 are each, independently of one another, a linking unit,B1, B2 are each, independently of one another, —C≡C— or a linking group as defined for Y1 to Y4,A1, A2 are each, independently of one another, a single chemical bond or a spacer having from one to 30 carbon atoms,T1, T2, T3, T4 are each, independently of one another, a divalent saturated or unsaturated carbocyclic or heterocyclic radical, andm, n are each, independently of one another, 0 or 1,with the proviso that at least one of the linking units Y3 or Y4 is a group —O—CO—O—, —O—CO—N(R)—, —(R)N—CO—O— or —(R)N—CO—N(R)—.
