Polymeric compositions composed of ethylene-vinyl ester copolymers alkyl (meth)acrylates, processes for production thereof and use thereof as pour point depressants for crude oils, mineral oils or mineral oil products

摘要

Polymeric compositions obtainable by free-radical polymerization of at least two different alkyl (meth)acrylates in the presence of at least one ethylene-vinyl ester copolymer, the alkyl (meth)acrylates used being a mixture comprising alkyl (meth)acrylates having linear C₁₂- to C₆₀-alkyl radicals and different alkyl (meth)acrylates having linear C₁- to C₁₁-alkyl radicals and/or branched C₄- to C₆₀-alkyl radicals and/or cyclic C₅- to C₂₀-alkyl radicals. The use of such polymeric compositions as pour point depressants for crude oils, mineral oils or mineral oil products.