Method for producing non-colored polyacrylate adhesive compounds with a narrow molar mass distribution

A method for producing a pressure-sensitive acrylate-based adhesive polymer having a glass transition temperature Tg,A of less than 15° C., a weight average molecular weight range of 100,000 to 500,000, and a polydispersity of 2-3.5, wherein first a controlled radical polymerization reaction of an initial reaction charge comprising at least one acrylate-based monomer is carried out in the presence of at least one chain transfer agent (CTA) having at least one functional S—C═X group, where X═S, O or N, the CTA being selected from the group consisting of dithioesters, dithiocarbonates, dithiocarbamates, trithiocarbonates, imidodithiocarbonates, and xanthates (“RAFT CTAs”), wherein CTA molecules are incorporated into the polymer chains that form, whereby the polymer chains have the functional group of the incorporated CTA, wherein

• at least one chemical compound which has at least two conjugated double bonds (“conjugated diene”) is contacted with the polymers thus obtained, so that hetero-Diels-Alder reactions are brought about between the double bonds C═X of the functional groups S—C═X incorporated into the polymer chains and the conjugated double bonds of the conjugated diene.