Polymeric compositions based on alkyl (meth) acrylic copolymerized with ethylene - Vinyl esters, Process for their production and their use as pour point depressant depressants pour point crude oil, mineral oils or mineral oil based Products

摘要

Polymeric compositions obtainable by radical polymerization of at least two different alkyl (meth) acrylates, in the presence of at least one ethylene-vinyl ester copolymer, in which a mixture comprising (meth) is used as (meth) alkyl acrylates alkyl acrylates with linear C₁₂₋₆₀ alkyl radicals, as well as (meth) alkyl acrylates other than the above with linear C₁₋₁₁ alkyl radicals and / or with branched C₄₋₆₀ alkyl radicals and / or with cyclic C₅₋₂₀ alkyl radicals. Use of these polymeric compositions as pour point depressants for oil crudes,Mineral oil or mineral oil products.