Manufacture of copolymers of ethylene

摘要

A process for the manufacture of copolymers of ethylene with vinyl acetate at pressures above 800 atmospheres and at from 150 DEG to 350 DEG C, using mean residence times of up to at most 100 seconds. The reaction mixture obtained from the polymerization is kept for from 2 to 10 minutes at from 150 DEG to 250 DEG C under a pressure below 500 atmospheres. Homogeneous ethylene/vinyl acetate copolymers are obtained without the formation of substantial amounts of free acetic acid by decomposition of the vinyl acetate.