USE OF ESTERS OF 1-ALKYL ACRYLIC ACID COPOLYMERISATS OR. OF 1-ALKEN-METHACRYLIC ACID COPOLYMERISATES FOR IMPROVING THE FLOW PROPERTIES OF PETROLEUM

摘要

1. A method of using an ester of a 1-alkene/acrylic or methacrylic acid copolymer with an alcohol of the general formula see diagramm : EP0220611,P10,F3 where R1 is an alkyl of 10 to 24 carbon atoms, R2 and R3 , which may be identical or different, are each hydrogen or an alkyl of from 1 to 3 carbon atoms, and x is from 2 to 30, for improving the flow properties of crude oil.