Patent ID: 6969746

Claim:
A copolymer obtained by a process for the preparation of terpolymers of ethylene and at least two further olefinically unsaturated comonomers selected from the group consisting of vinyl esters, acrylates, methacrylates, alkyl vinyl ethers, alkenes and mixtures thereof, by polymerization in a single tubular reactor fitted with at least one side branch, wherein the fresh monomer components, initiator and optional regulator are introduced into the tubular reactor via the reactor inlet (the primary stream) or via the side branch or side branches (secondary stream or secondary streams), and wherein each of the streams contain ethylene and at most one different of the two further olefinically unsaturated comonomers, the copolymer having a melt viscosity measured at 140Â° C. of between 30 and 100 mPas.