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Abstract

The invention relates to a primer for improving the adhesion of adhesive tapes to hydrophilic surfaces, such as, in particular, glass or ceramic. The primer according to the invention comprises, dissolved or dispersed in one or more solvents, a mixture G of

at least one copolymer obtained by copolymerization of a monomer mixture comprising to at least 90 wt. % the following monomers:vinylcaprolactam and/or vinylpyrrolidone and one or more of the monomers a) and b): c) acrylic acid ester of a linear, primary alcohol having 2 to 10 carbon atoms in the alkyl radical of the alcohol,d) acrylic acid ester of a branched, non-cyclic alcohol having 3 to 12 carbon atoms in the alkyl radical of the alcohol, at least one organofunctional silane of the general structure (Ia) or (Ib)

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First Claim