ETHYLENE VINYL ACETATE-BASED DISPERSIONS SUITABLE AS POUR POINT DEPRESSANTS WITH IMPROVED PERFORMANCE AND STABILITY

The invention relates to new ethylene vinyl acetate-based polymer dispersions with increased stability compared to state-of-the-art and to a preparation process thereof. The invention also relates to a method for inhibiting wax deposition and reducing the pour point, viscosity and yield stress of cr...

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Bibliographische Detailangaben
Hauptverfasser:	MEURER, JASMIN, MOSNIER, GAEL, BORGER, ALISA, BERWING, INES, RIEGER, JOHANNES, SIRAK, SOFIA, MEISTER, CLAUDIA, WINKLER, MARIERISTIN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL GAS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES POLISHES 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 new ethylene vinyl acetate-based polymer dispersions with increased stability compared to state-of-the-art and to a preparation process thereof. The invention also relates to a method for inhibiting wax deposition and reducing the pour point, viscosity and yield stress of crude oils by treating the crude oils with these stable ethylene vinyl acetate-based polymer dispersions. L'invention concerne de nouvelles dispersions de polymère à base d'acétate de vinyle-éthylène présentant une stabilité accrue par rapport à l'état de la technique et leur procédé de préparation. L'invention concerne également un procédé d'inhibition de dépôt de cire et de réduction du point d'écoulement, de la viscosité et de la limite d'écoulement d'huiles brutes par traitement des huiles brutes avec ces dispersions de polymère à base d'acétate de vinyle-éthylène stables.