Copolymers comprising Ethylene, Vinyl esters and (meth) acrylic acid esters, formulations and uses as pour point depressant and Wax inhibitor for crude PETRu00d3LEOS Flow Enhancer

摘要

Copolymers comprising ethylene, vinyl esters, in particular vinyl acetate and esters of (meth)acrylic acid, selected from esters comprising branched alkyl, cyclic alkyl or optionally alkyl substituted aryl moieties and having a weight average molecular weight of 35,000 g/mol to 150,000 g/mol, formulations of such copolymers in organic solvents and their use as pour point depressant, wax inhibitor and flow enhancer for crude oils.