公开(公告)号：US20190136023A1

公开(公告)日：2019-05-09

申请号：US16239782

申请日：2019-01-04

Applicant: BASF SE

Inventor： IVETTE GARCIA CASTRO ,  Stefan FRENZEL ,  Maria HEUKEN ,  Jennifer JACKSON

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

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.

公开(公告)号：US20180355266A1

公开(公告)日：2018-12-13

申请号：US15778723

申请日：2016-11-17

Applicant: BASF SE

Inventor： IVETTE GARCIA CASTRO ,  Kai GUMLICH ,  Stefan FRENZEL ,  Maria HEUKEN ,  Rouven KONRAD ,  Karin NEUBECKER ,  Edward BOHRES ,  Adam BLANAZS

IPC: C10L1/196 ,  C10L10/04 ,  C10L10/16

Abstract: Copolymers comprising C14 to C50 olefins and at least two different olefindicarboxylic esters and optionally maleic acid or maleic acid derivatives. The olefindicarboxylic esters are firstly esters with linear C18- to C50-alkyl groups and secondly esters with short-chain linear, branched or cyclic alkyl groups, or esters with aromatic groups. The invention further relates to a process for preparing copolymers of this kind and to the use thereof as pour point depressant for crude oil, mineral oil and/or mineral oil products, preferably as pour point depressant for crude oil.