Patent ID: 7179877

Claim:
A polyestersiloxane acrylate obtained by reacting I.) one or more organically modified polysiloxanes of the formula (I) where the radicals R 1 in the molecule are identical or different and are alkyl radicals, A are identical or different and are —R 2 —X, where R 2 is a radical of the general formula (Ia) R 3 is a divalent, optionally substituted alkyl or alkenyl radical, R 4 radicals are identical to or different from one another and are divalent, optionally substituted alkyl or aralkyl radicals, x independently at each occurrence is 0 or 1, y independently at each occurrence has a value from 0 to 100, and X is an isocyanate-reactive group, and II.) one or more polyisocyanates having in each case at least two isocyanate groups, and III.) one or more polyester acrylates or polyester methacrylates of the general formula (II) in which R 5 is a hydrogen atom or a methyl group and R 6 is a radical of the general formula (IIa) where R 3 and R 4 are as defined above and y′ has a value from 1 to 50, optionally in the presence of inhibitors, catalysts, additional compounds containing isocyanate-reactive groups.