A (co)polycarbonate the molecular structure of which contains units derived from bisphenols conforming to formulae (1a.sub.1) and (1b.sub.1) ##STR00001## in which R.sup.1 independently of one another represents hydrogen or a C.sub.1-C.sub.10-alkyl and R.sup.2 represents C.sub.1-C.sub.10-alkyl, or phenyl or benzyl in each case unsubstituted or substituted by at least one member selected from the group consisting of hydrogen and C.sub.1-C.sub.10-alkyl radical. The (co)polycarbonate exhibits relatively high glass transition temperature and improved adhesion to metals.