in the patent is regarded as being the fact that they have a high k value and thus a high molecular weight the skilled worker is aware that systems with higher molecular weights can be crosslinked more efficiently there is a corresponding reduction in the fraction of volatile constituents the solution of the composition may contain from 5 to 80 by weight in particular from 30 to 70 by weight of solvent s preference is given to using commercially customary solvents especially low boiling hydrocarbons ketones alcohols and or esters further preference is given to using single screw twin screw or multi screw extruders having one or in particular two or more devolatilizing units benzoin derivatives may be copolymerized into the adhesive based on acrylate hotmelt such as benzoin acrylate or benzoin methacrylate acrylic or methacrylic esters for example benzoin derivatives of this kind are described in ep 0 578 151 a1 alternatively the adhesive based on acrylate holtmelt may have been crosslinked chemically in one particularly preferred embodiment the self adhesives used are copolymers of meth acrylic acid and esters thereof having 1 to 25 carbon atoms maleic fumaric and or itaconic acid and or their esters substituted meth acrylamides maleic anhydride and other vinyl compounds such as vinyl esters especially vinyl acetate vinyl alcohols and or vinyl ethers the residual solvent content ought to be below 1 by weight an adhesive which is found particularly suitable is.