Use containing olefincopolymermassen of polyoxazolines for olefin copolymers as processing aids and polyoxazolines

The use of polyoxazolines of general formula (I): [-N(CO-R)-CH2-CH2-]n, in which R is an alkyl or alkenyl radical with 1 to 30 hydrocarbon atoms and n is such that the average molar mass for the polyoxazolines lies in the range frome 2000 to 500,000, as processing aids for olefine copolymers and plastics mixtures containing them, provides copolymers with good flow behaviour and shape retention under heat.