Polymere fliessverbesserte Zusätze

摘要

The invention provides a copolymer of at least one n-(C8-C30-alkyl) (meth)acrylate with maleic anhydride, which contains alternating (meth)acrylate and maleic anhydride monomeric units, characterised in that the copolymer has a degree of alternation of at least 85%; a process for its preparation; a hydrocarbon oil composition containing it; and its use as a flow improver additive.