Transparent pressure-sensitive adhesive layer

摘要

The invention refers to a transparent pressure-sensitive adhesive layer the pressure- sensitive adhesive of which comprises (i) the reaction product obtainable by polymerizing a precursor comprising (a)one or more alkyl (meth)acrylate monomers the alkyl groups of which comprise independently from each other 4 to 20 carbon atoms, and (b)one or more moderately polar Lewis base-functional copolymerizable monomers, and (ii) one or more tackifying resins wherein the concentration of the alkyl acrylate monomer or monomers and the thickness of the pressure-sensitive adhesive layer are selected so that the pressure-sensitive adhesive layer has a 90 DEG peel adhesion from polycarbonate after a dwell time of 72 as measured according to FINAT method no. 2 of at least 35 N/1.27 cm.