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

The invention relates to polymer compositions obtainable by radical polymerization of at least two different alkyl(meth)acrylates in the presence of at least one ethylene-vinyl ester copolymer, wherein a mixture comprising alkyl(meth)acrylates with linear C12 to C60 alkyl groups and alkyl(meth)acryl...

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Bibliographische Detailangaben
Hauptverfasser:	GARCIA CASTRO, IVETTE, NEUBECKER, KARIN, GUMLICH, KAI, FRENZEL, STEFAN, KONRAD, ROUVEN, HEUKEN, MARIA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NATURAL GAS ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to polymer compositions obtainable by radical polymerization of at least two different alkyl(meth)acrylates in the presence of at least one ethylene-vinyl ester copolymer, wherein a mixture comprising alkyl(meth)acrylates with linear C12 to C60 alkyl groups and alkyl(meth)acrylates different therefrom with linear C1 to C11 alkyl groups and/or branched C4 to C60 alkyl groups and/or cyclic C5 to C20 alkyl groups is used as the alkyl(meth)acrylates. The invention further relates to the use of such polymer compositions as pour-point depressants for crude oils, mineral oils or mineral oil products. L'invention concerne des compositions polymères pouvant être obtenues par polymérisation radicalaire de deux alkyl(méth)acrylates différents, en présence d'au moins un copolymère éthylène-ester de vinyle. On utilise comme alkyl(méth)acrylates un mélange comprenant des alkyl(méth)acrylates à radical alkyle linéaire en C12 à C60, ainsi que des alkyl(méth)acrylates différents des premiers à radical alkyle linéaire en C1 à C11 et/ou à radical alkyle ramifié en C4 à C60, et/ou ou à radical alkyle cyclique en C5 à C20. L'invention concerne l'utilisation de telles compositions polymères comme produits améliorant le point d'écoulement pour les huiles brutes, les huiles minérales ou les produits pétroliers.