公开(公告)号：US12241031B2

公开(公告)日：2025-03-04

申请号：US18268975

申请日：2021-12-22

Applicant: TotalEnergies OneTech

Inventor： Frederic Tort ,  Thomas Fritsch

IPC: C10L1/14 ,  C08F220/18 ,  C08G8/12 ,  C08G8/28 ,  C08L23/0853 ,  C09K8/524 ,  C10L1/195 ,  C10L1/196 ,  C10L1/198 ,  C10L1/238 ,  C10L10/16

Abstract: The present invention relates to a composition of additives comprising: at least one first compound selected from: (i) copolymers of ethylene and vinyl acetate having a molar mass Mn included in the range ranging from 10,000 to 60,000 g·mol−1, optionally grafted by at least one alkyl (meth)acrylate group, the alkyl chain of which is saturated and contains from 12 to 30 carbon atoms; and (ii) polymers comprising at least 90 mol % of units derived from alkyl. (meth)acrylate monomer, the alkyl chain of which is saturated and contains from 18 to 22 carbon atoms; and at least one second compound selected from the modified alkylphenol-aldehyde resins. The invention also relates to the use of this composition of additives for lowering the viscosity of a liquid petroleum product such as a crude oil and for reducing the deposition of paraffins.