公开(公告)号：US10208192B2

公开(公告)日：2019-02-19

申请号：US15119144

申请日：2015-02-16

Applicant: BASF SE

Inventor： Ivette Garcia Castro ,  Stefan Frenzel ,  Maria Heuken ,  Jennifer Jackson

IPC: C08L23/08 ,  C10L1/19 ,  C08F210/02 ,  C10L10/16 ,  E21B37/06 ,  F17D1/17 ,  C10L1/197 ,  C09K8/524 ,  C09K8/588

Abstract: 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.