Patent attributes
The invention provides additive mixtures comprisingA) at least one terpolymer of ethylene, propene and at least one ethylenically unsaturated ester, whichi) contains from 6.0 to 12.0 mol % of structural units derived from at least one ethylenically unsaturated ester having a C1- to C3-alkyl radical,ii) contains from 0.5 to 4.0 methyl groups derived from propene per 100 aliphatic carbon atoms,iii) has fewer than 8.0 methyl groups stemming from chain ends per 100 CH2 groups, andB) from 0.5 to 20 parts by weight, based on A), of at least one further componentwhich is effective as a cold additive for mineral oils and is selected fromB1) copolymers of ethylene and ethylenically unsaturated compounds whose content of ethylenically unsaturated compounds is at least 2 mol % higher than the content of ethylenically unsaturated esters in the terpolymer defined under A),B2) comb polymers, andB3) mixtures of B1) and B2),and also their use as a cold additive for middle distillates.
