Patent ID: 7851574

Claim:
A pressure-sensitive adhesive comprising at least one functionalized polymer comprised of more than 50% by weight (meth)acrylate monomers, wherein the weight average of the molar mass distribution is situated between 5000 g/mol and 200 000 g/mol and the difference between M p and M min is less than 25 000 g/mol, where (a) M p is the peak molar mass of a monomodal polymer or the peak molar mass of the smallest mode in a bimodal or multimodal polymer, (b) M min is the smallest molar mass occurring in the molar mass distribution, defined on the basis of the point at which the cumulative frequency of the molar mass distribution has a value of 0.05, (c) the functionalized polymer is linear, branched or star-shaped in structure, (d) the functionalized polymer carries at least one kind of fictionalizations, which can be utilized for subsequent crosslinking of the functionalized polymer, (e) at least 50% of the polymer chains of the functionalized polymer carry at least two functionalizations, (f) at least 75% of the polymer chains of the functionalized polymer carry at least one functionalization; and (g) the at least one kind of functionalization of the functionalized polymer results from the use of at least one variety of a functionalized monomer in the preparation of the functionalized polymer.