Polycarbonates containing aryl phosphines

Thermoplastic aromatic polycarbonates having a content of phosphine stabilizers, wherein the phosphine stabilizers correspond to formula (I) ##STR8## where R is an unsubstituted or substituted C.sub.6 -C.sub.14 aryl radical, and where R.sup.1 is one of the following radicals (Ia) to (Ih):

• ##STR9## where R has the meaning cited for formula (I), "n" and "m" are each, independently of each other, an integer from 1 to 7, and where the H atoms of radicals (Ia) to (Ic) can also be replaced by substituents and where R.sup.1 can also be 4-phenyl phenyl or .alpha.-naphthyl when both R's in formula (I) are likewise each 4-phenyl phenyl or .alpha.-naphthyl, further wherein the content of the phosphine stabilizers of formula (I) is between 0.001% by weight and 1% by weight with respect to the total weight of the polycarbonate and phosphine stabilizers.